Remove rapidjson and Improve update ploicy.

40 files changed, 26798 insertions, 17216 deletions

diff --git a/src/ui/function/VersionCheckThread.cpp b/src/ui/function/VersionCheckThread.cpp
index 50a4160e..765ccd2f 100644
--- a/src/ui/function/VersionCheckThread.cpp
+++ b/src/ui/function/VersionCheckThread.cpp
@@ -24,51 +24,54 @@
 
 #include "VersionCheckThread.h"
 
-#include "GpgFrontendBuildInfo.h"
-#include "rapidjson/document.h"
+#include <iterator>
+#include <regex>
 
-using namespace rapidjson;
+#include "GpgFrontendBuildInfo.h"
+#include "json/json.hpp"
 
 namespace GpgFrontend::UI {
 
 void VersionCheckThread::run() {
-  LOG(INFO) << "Start Version Thread to get latest version from Github";
+  using namespace nlohmann;
 
-  auto currentVersion = "v" + QString::number(VERSION_MAJOR) + "." +
-                        QString::number(VERSION_MINOR) + "." +
-                        QString::number(VERSION_PATCH);
+  LOG(INFO) << "get latest version from Github";
+
+  auto current_version = std::string("v") + std::to_string(VERSION_MAJOR) +
+                         "." + std::to_string(VERSION_MINOR) + "." +
+                         std::to_string(VERSION_PATCH);
 
   while (mNetworkReply->isRunning()) {
     QApplication::processEvents();
   }
 
   if (mNetworkReply->error() != QNetworkReply::NoError) {
-    LOG(ERROR) << "VersionCheckThread Found Network Error";
+    LOG(ERROR) << "network error";
     return;
   }
 
-  QByteArray bytes = mNetworkReply->readAll();
+  auto bytes = mNetworkReply->readAll();
 
-  Document d;
-  d.Parse(bytes.constData());
+  auto reply_json = nlohmann::json::parse(bytes.toStdString());
 
-  QString latestVersion = d["tag_name"].GetString();
+  std::string latest_version = reply_json["tag_name"];
 
-  LOG(INFO) << "Latest Version From Github" << latestVersion.toStdString();
+  LOG(INFO) << "latest version from Github" << latest_version;
 
-  QRegularExpression re(R"(^[vV](\d+\.)?(\d+\.)?(\*|\d+))");
-  QRegularExpressionMatch match = re.match(latestVersion);
-  if (match.hasMatch()) {
-    latestVersion = match.captured(0);  // matched == "23 def"
-    LOG(INFO) << "Latest Version Matched" << latestVersion.toStdString();
+  std::regex re(R"(^[vV](\d+\.)?(\d+\.)?(\*|\d+))");
+  auto version_begin =
+      std::sregex_iterator(latest_version.begin(), latest_version.end(), re);
+  auto version_end = std::sregex_iterator();
+  if (std::distance(version_begin, version_end)) {
+    std::smatch match = *version_begin;
+    latest_version = match.str();
+    LOG(INFO) << "latest version matched" << latest_version;
   } else {
-    latestVersion = currentVersion;
-    LOG(WARNING) << "Latest Version Unknown" << latestVersion.toStdString();
+    latest_version = current_version;
+    LOG(WARNING) << "latest version unknown";
   }
 
-  if (latestVersion != currentVersion) {
-    emit upgradeVersion(currentVersion, latestVersion);
-  }
+  emit upgradeVersion(current_version.c_str(), latest_version.c_str());
 }
 
 VersionCheckThread::VersionCheckThread(QNetworkReply* networkReply)
diff --git a/src/ui/help/AboutDialog.cpp b/src/ui/help/AboutDialog.cpp
index 7358ced5..836c165e 100644
--- a/src/ui/help/AboutDialog.cpp
+++ b/src/ui/help/AboutDialog.cpp
@@ -25,10 +25,7 @@
 #include "ui/help/AboutDialog.h"
 
 #include "GpgFrontendBuildInfo.h"
-#include "rapidjson/document.h"
-#include "rapidjson/writer.h"
-
-using namespace rapidjson;
+#include "function/VersionCheckThread.h"
 
 namespace GpgFrontend::UI {
 
@@ -53,7 +50,7 @@ AboutDialog::AboutDialog(int defaultIndex, QWidget* parent) : QDialog(parent) {
 
   auto* buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok);
   connect(buttonBox, SIGNAL(accepted()), this, SLOT(close()));
-  
+
   auto* mainLayout = new QVBoxLayout;
   mainLayout->addWidget(tabWidget);
   mainLayout->addWidget(buttonBox);
@@ -185,56 +182,29 @@ UpdateTab::UpdateTab(QWidget* parent) {
 void UpdateTab::getLatestVersion() {
   this->pb->setHidden(false);
 
-  qDebug() << "Try to get latest version";
+  LOG(INFO) << "try to get latest version";
 
-  QString baseUrl =
+  QString base_url =
       "https://api.github.com/repos/saturneric/gpgfrontend/releases/latest";
+  QNetworkRequest request;
+  request.setUrl(QUrl(base_url));
+  auto version_thread = new VersionCheckThread(manager->get(request));
 
-  auto manager = new QNetworkAccessManager(this);
+  connect(version_thread, SIGNAL(finished()), version_thread,
+          SLOT(deleteLater()));
+  connect(version_thread, &VersionCheckThread::upgradeVersion, this,
+          &UpdateTab::slotShowVersionStatus);
 
-  QNetworkRequest request;
-  request.setUrl(QUrl(baseUrl));
-  QNetworkReply* replay = manager->get(request);
-  auto thread = QThread::create([replay, this]() {
-    while (replay->isRunning()) QApplication::processEvents();
-    emit replyFromUpdateServer(replay->readAll());
-  });
-  connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
-  thread->start();
+  version_thread->start();
 }
 
-void UpdateTab::processReplyDataFromUpdateServer(const QByteArray& data) {
-  qDebug() << "Try to Process Reply Data From Update Server";
-
+void UpdateTab::slotShowVersionStatus(const QString& current,
+                                      const QString& server) {
   this->pb->setHidden(true);
 
-  Document d;
-  if (d.Parse(data.constData()).HasParseError() || !d.IsObject()) {
-    qDebug() << "VersionCheckThread Found Network Error";
-    auto latestVersion = "Unknown";
-    latestVersionLabel->setText(QString("<center><b>") +
-                                _("Latest Version From Github") + ": " +
-                                latestVersion + "</b></center>");
-    return;
-  }
-
-  QString latestVersion = d["tag_name"].GetString();
-
-  qDebug() << "Latest Version From Github" << latestVersion;
-
-  QRegularExpression re(R"(^[vV](\d+\.)?(\d+\.)?(\*|\d+))");
-  QRegularExpressionMatch match = re.match(latestVersion);
-  if (match.hasMatch()) {
-    latestVersion = match.captured(0);
-    qDebug() << "Latest Version Matched" << latestVersion;
-  } else
-    latestVersion = "Unknown";
-
   latestVersionLabel->setText("<center><b>" +
                               QString(_("Latest Version From Github")) + ": " +
-                              latestVersion + "</b></center>");
-
-  if (latestVersion > currentVersion) upgradeLabel->setHidden(false);
+                              server + "</b></center>");
 }
 
 }  // namespace GpgFrontend::UI
diff --git a/src/ui/help/AboutDialog.h b/src/ui/help/AboutDialog.h
index a7d7099b..4d43600e 100644
--- a/src/ui/help/AboutDialog.h
+++ b/src/ui/help/AboutDialog.h
@@ -68,14 +68,15 @@ class UpdateTab : public QWidget {
 
   QString currentVersion;
 
+  QNetworkAccessManager* manager = new QNetworkAccessManager(this);
+
  public:
   explicit UpdateTab(QWidget* parent = nullptr);
 
   void getLatestVersion();
 
  private slots:
-  void processReplyDataFromUpdateServer(const QByteArray& data);
-  ;
+  void slotShowVersionStatus(const QString& current, const QString& server);
 
  signals:
   void replyFromUpdateServer(QByteArray data);
diff --git a/src/ui/settings/SettingsGeneral.cpp b/src/ui/settings/SettingsGeneral.cpp
index 98610e12..4f9bfbae 100644
--- a/src/ui/settings/SettingsGeneral.cpp
+++ b/src/ui/settings/SettingsGeneral.cpp
@@ -34,7 +34,6 @@
 
 #include "GlobalSettingStation.h"
 #include "gpg/function/GpgKeyGetter.h"
-#include "rapidjson/prettywriter.h"
 #include "ui/widgets/KeyList.h"
 
 namespace GpgFrontend::UI {
@@ -282,7 +281,7 @@ void GeneralTab::applySettings() {
     general["lang"] = lang.key(langSelectBox->currentText()).toStdString();
   }
 #endif
-  
+
 #ifdef SERVER_SUPPORT
   settings.setValue(
       "general/ownKeyId",
diff --git a/third_party/json/json.hpp b/third_party/json/json.hpp
new file mode 100644
index 00000000..87475ab3
--- /dev/null
+++ b/third_party/json/json.hpp
@@ -0,0 +1,26753 @@
+/*
+    __ _____ _____ _____
+ __|  |   __|     |   | |  JSON for Modern C++
+|  |  |__   |  |  | | | |  version 3.10.4
+|_____|_____|_____|_|___|  https://github.com/nlohmann/json
+
+Licensed under the MIT License <http://opensource.org/licenses/MIT>.
+SPDX-License-Identifier: MIT
+Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
+
+Permission is hereby  granted, free of charge, to any  person obtaining a copy
+of this software and associated  documentation files (the "Software"), to deal
+in the Software  without restriction, including without  limitation the rights
+to  use, copy,  modify, merge,  publish, distribute,  sublicense, and/or  sell
+copies  of  the Software,  and  to  permit persons  to  whom  the Software  is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE  IS PROVIDED "AS  IS", WITHOUT WARRANTY  OF ANY KIND,  EXPRESS OR
+IMPLIED,  INCLUDING BUT  NOT  LIMITED TO  THE  WARRANTIES OF  MERCHANTABILITY,
+FITNESS FOR  A PARTICULAR PURPOSE AND  NONINFRINGEMENT. IN NO EVENT  SHALL THE
+AUTHORS  OR COPYRIGHT  HOLDERS  BE  LIABLE FOR  ANY  CLAIM,  DAMAGES OR  OTHER
+LIABILITY, WHETHER IN AN ACTION OF  CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE  OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#ifndef INCLUDE_NLOHMANN_JSON_HPP_
+#define INCLUDE_NLOHMANN_JSON_HPP_
+
+#define NLOHMANN_JSON_VERSION_MAJOR 3
+#define NLOHMANN_JSON_VERSION_MINOR 10
+#define NLOHMANN_JSON_VERSION_PATCH 4
+
+#include <algorithm> // all_of, find, for_each
+#include <cstddef> // nullptr_t, ptrdiff_t, size_t
+#include <functional> // hash, less
+#include <initializer_list> // initializer_list
+#ifndef JSON_NO_IO
+    #include <iosfwd> // istream, ostream
+#endif  // JSON_NO_IO
+#include <iterator> // random_access_iterator_tag
+#include <memory> // unique_ptr
+#include <numeric> // accumulate
+#include <string> // string, stoi, to_string
+#include <utility> // declval, forward, move, pair, swap
+#include <vector> // vector
+
+// #include <nlohmann/adl_serializer.hpp>
+
+
+#include <type_traits>
+#include <utility>
+
+// #include <nlohmann/detail/conversions/from_json.hpp>
+
+
+#include <algorithm> // transform
+#include <array> // array
+#include <forward_list> // forward_list
+#include <iterator> // inserter, front_inserter, end
+#include <map> // map
+#include <string> // string
+#include <tuple> // tuple, make_tuple
+#include <type_traits> // is_arithmetic, is_same, is_enum, underlying_type, is_convertible
+#include <unordered_map> // unordered_map
+#include <utility> // pair, declval
+#include <valarray> // valarray
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+
+#include <exception> // exception
+#include <stdexcept> // runtime_error
+#include <string> // to_string
+#include <vector> // vector
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+#include <array> // array
+#include <cstddef> // size_t
+#include <cstdint> // uint8_t
+#include <string> // string
+
+namespace nlohmann
+{
+namespace detail
+{
+///////////////////////////
+// JSON type enumeration //
+///////////////////////////
+
+/*!
+@brief the JSON type enumeration
+
+This enumeration collects the different JSON types. It is internally used to
+distinguish the stored values, and the functions @ref basic_json::is_null(),
+@ref basic_json::is_object(), @ref basic_json::is_array(),
+@ref basic_json::is_string(), @ref basic_json::is_boolean(),
+@ref basic_json::is_number() (with @ref basic_json::is_number_integer(),
+@ref basic_json::is_number_unsigned(), and @ref basic_json::is_number_float()),
+@ref basic_json::is_discarded(), @ref basic_json::is_primitive(), and
+@ref basic_json::is_structured() rely on it.
+
+@note There are three enumeration entries (number_integer, number_unsigned, and
+number_float), because the library distinguishes these three types for numbers:
+@ref basic_json::number_unsigned_t is used for unsigned integers,
+@ref basic_json::number_integer_t is used for signed integers, and
+@ref basic_json::number_float_t is used for floating-point numbers or to
+approximate integers which do not fit in the limits of their respective type.
+
+@sa see @ref basic_json::basic_json(const value_t value_type) -- create a JSON
+value with the default value for a given type
+
+@since version 1.0.0
+*/
+enum class value_t : std::uint8_t
+{
+    null,             ///< null value
+    object,           ///< object (unordered set of name/value pairs)
+    array,            ///< array (ordered collection of values)
+    string,           ///< string value
+    boolean,          ///< boolean value
+    number_integer,   ///< number value (signed integer)
+    number_unsigned,  ///< number value (unsigned integer)
+    number_float,     ///< number value (floating-point)
+    binary,           ///< binary array (ordered collection of bytes)
+    discarded         ///< discarded by the parser callback function
+};
+
+/*!
+@brief comparison operator for JSON types
+
+Returns an ordering that is similar to Python:
+- order: null < boolean < number < object < array < string < binary
+- furthermore, each type is not smaller than itself
+- discarded values are not comparable
+- binary is represented as a b"" string in python and directly comparable to a
+  string; however, making a binary array directly comparable with a string would
+  be surprising behavior in a JSON file.
+
+@since version 1.0.0
+*/
+inline bool operator<(const value_t lhs, const value_t rhs) noexcept
+{
+    static constexpr std::array<std::uint8_t, 9> order = {{
+            0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */,
+            1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */,
+            6 /* binary */
+        }
+    };
+
+    const auto l_index = static_cast<std::size_t>(lhs);
+    const auto r_index = static_cast<std::size_t>(rhs);
+    return l_index < order.size() && r_index < order.size() && order[l_index] < order[r_index];
+}
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/string_escape.hpp>
+
+
+#include <string>
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+#include <utility> // declval, pair
+// #include <nlohmann/thirdparty/hedley/hedley.hpp>
+
+
+/* Hedley - https://nemequ.github.io/hedley
+ * Created by Evan Nemerson <[email protected]>
+ *
+ * To the extent possible under law, the author(s) have dedicated all
+ * copyright and related and neighboring rights to this software to
+ * the public domain worldwide. This software is distributed without
+ * any warranty.
+ *
+ * For details, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+ * SPDX-License-Identifier: CC0-1.0
+ */
+
+#if !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < 15)
+#if defined(JSON_HEDLEY_VERSION)
+    #undef JSON_HEDLEY_VERSION
+#endif
+#define JSON_HEDLEY_VERSION 15
+
+#if defined(JSON_HEDLEY_STRINGIFY_EX)
+    #undef JSON_HEDLEY_STRINGIFY_EX
+#endif
+#define JSON_HEDLEY_STRINGIFY_EX(x) #x
+
+#if defined(JSON_HEDLEY_STRINGIFY)
+    #undef JSON_HEDLEY_STRINGIFY
+#endif
+#define JSON_HEDLEY_STRINGIFY(x) JSON_HEDLEY_STRINGIFY_EX(x)
+
+#if defined(JSON_HEDLEY_CONCAT_EX)
+    #undef JSON_HEDLEY_CONCAT_EX
+#endif
+#define JSON_HEDLEY_CONCAT_EX(a,b) a##b
+
+#if defined(JSON_HEDLEY_CONCAT)
+    #undef JSON_HEDLEY_CONCAT
+#endif
+#define JSON_HEDLEY_CONCAT(a,b) JSON_HEDLEY_CONCAT_EX(a,b)
+
+#if defined(JSON_HEDLEY_CONCAT3_EX)
+    #undef JSON_HEDLEY_CONCAT3_EX
+#endif
+#define JSON_HEDLEY_CONCAT3_EX(a,b,c) a##b##c
+
+#if defined(JSON_HEDLEY_CONCAT3)
+    #undef JSON_HEDLEY_CONCAT3
+#endif
+#define JSON_HEDLEY_CONCAT3(a,b,c) JSON_HEDLEY_CONCAT3_EX(a,b,c)
+
+#if defined(JSON_HEDLEY_VERSION_ENCODE)
+    #undef JSON_HEDLEY_VERSION_ENCODE
+#endif
+#define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision))
+
+#if defined(JSON_HEDLEY_VERSION_DECODE_MAJOR)
+    #undef JSON_HEDLEY_VERSION_DECODE_MAJOR
+#endif
+#define JSON_HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000)
+
+#if defined(JSON_HEDLEY_VERSION_DECODE_MINOR)
+    #undef JSON_HEDLEY_VERSION_DECODE_MINOR
+#endif
+#define JSON_HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000)
+
+#if defined(JSON_HEDLEY_VERSION_DECODE_REVISION)
+    #undef JSON_HEDLEY_VERSION_DECODE_REVISION
+#endif
+#define JSON_HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000)
+
+#if defined(JSON_HEDLEY_GNUC_VERSION)
+    #undef JSON_HEDLEY_GNUC_VERSION
+#endif
+#if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__)
+    #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__)
+#elif defined(__GNUC__)
+    #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_VERSION_CHECK)
+    #undef JSON_HEDLEY_GNUC_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_GNUC_VERSION)
+    #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_MSVC_VERSION)
+    #undef JSON_HEDLEY_MSVC_VERSION
+#endif
+#if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000) && !defined(__ICL)
+    #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100)
+#elif defined(_MSC_FULL_VER) && !defined(__ICL)
+    #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10)
+#elif defined(_MSC_VER) && !defined(__ICL)
+    #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0)
+#endif
+
+#if defined(JSON_HEDLEY_MSVC_VERSION_CHECK)
+    #undef JSON_HEDLEY_MSVC_VERSION_CHECK
+#endif
+#if !defined(JSON_HEDLEY_MSVC_VERSION)
+    #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (0)
+#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
+    #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch)))
+#elif defined(_MSC_VER) && (_MSC_VER >= 1200)
+    #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch)))
+#else
+    #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor)))
+#endif
+
+#if defined(JSON_HEDLEY_INTEL_VERSION)
+    #undef JSON_HEDLEY_INTEL_VERSION
+#endif
+#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && !defined(__ICL)
+    #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE)
+#elif defined(__INTEL_COMPILER) && !defined(__ICL)
+    #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0)
+#endif
+
+#if defined(JSON_HEDLEY_INTEL_VERSION_CHECK)
+    #undef JSON_HEDLEY_INTEL_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_INTEL_VERSION)
+    #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_INTEL_CL_VERSION)
+    #undef JSON_HEDLEY_INTEL_CL_VERSION
+#endif
+#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && defined(__ICL)
+    #define JSON_HEDLEY_INTEL_CL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER, __INTEL_COMPILER_UPDATE, 0)
+#endif
+
+#if defined(JSON_HEDLEY_INTEL_CL_VERSION_CHECK)
+    #undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_INTEL_CL_VERSION)
+    #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_CL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_PGI_VERSION)
+    #undef JSON_HEDLEY_PGI_VERSION
+#endif
+#if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__)
+    #define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__)
+#endif
+
+#if defined(JSON_HEDLEY_PGI_VERSION_CHECK)
+    #undef JSON_HEDLEY_PGI_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_PGI_VERSION)
+    #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_SUNPRO_VERSION)
+    #undef JSON_HEDLEY_SUNPRO_VERSION
+#endif
+#if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000)
+    #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10)
+#elif defined(__SUNPRO_C)
+    #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C) & 0xf)
+#elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000)
+    #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10)
+#elif defined(__SUNPRO_CC)
+    #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC) & 0xf)
+#endif
+
+#if defined(JSON_HEDLEY_SUNPRO_VERSION_CHECK)
+    #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_SUNPRO_VERSION)
+    #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION)
+    #undef JSON_HEDLEY_EMSCRIPTEN_VERSION
+#endif
+#if defined(__EMSCRIPTEN__)
+    #define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__)
+#endif
+
+#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK)
+    #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION)
+    #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_ARM_VERSION)
+    #undef JSON_HEDLEY_ARM_VERSION
+#endif
+#if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION)
+    #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100)
+#elif defined(__CC_ARM) && defined(__ARMCC_VERSION)
+    #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100)
+#endif
+
+#if defined(JSON_HEDLEY_ARM_VERSION_CHECK)
+    #undef JSON_HEDLEY_ARM_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_ARM_VERSION)
+    #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_IBM_VERSION)
+    #undef JSON_HEDLEY_IBM_VERSION
+#endif
+#if defined(__ibmxl__)
+    #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__)
+#elif defined(__xlC__) && defined(__xlC_ver__)
+    #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff)
+#elif defined(__xlC__)
+    #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0)
+#endif
+
+#if defined(JSON_HEDLEY_IBM_VERSION_CHECK)
+    #undef JSON_HEDLEY_IBM_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_IBM_VERSION)
+    #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_VERSION)
+    #undef JSON_HEDLEY_TI_VERSION
+#endif
+#if \
+    defined(__TI_COMPILER_VERSION__) && \
+    ( \
+      defined(__TMS470__) || defined(__TI_ARM__) || \
+      defined(__MSP430__) || \
+      defined(__TMS320C2000__) \
+    )
+#if (__TI_COMPILER_VERSION__ >= 16000000)
+    #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+#endif
+
+#if defined(JSON_HEDLEY_TI_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_VERSION)
+    #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL2000_VERSION)
+    #undef JSON_HEDLEY_TI_CL2000_VERSION
+#endif
+#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C2000__)
+    #define JSON_HEDLEY_TI_CL2000_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL2000_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_CL2000_VERSION)
+    #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL2000_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL430_VERSION)
+    #undef JSON_HEDLEY_TI_CL430_VERSION
+#endif
+#if defined(__TI_COMPILER_VERSION__) && defined(__MSP430__)
+    #define JSON_HEDLEY_TI_CL430_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL430_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_CL430_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_CL430_VERSION)
+    #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_ARMCL_VERSION)
+    #undef JSON_HEDLEY_TI_ARMCL_VERSION
+#endif
+#if defined(__TI_COMPILER_VERSION__) && (defined(__TMS470__) || defined(__TI_ARM__))
+    #define JSON_HEDLEY_TI_ARMCL_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+
+#if defined(JSON_HEDLEY_TI_ARMCL_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_ARMCL_VERSION)
+    #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_ARMCL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL6X_VERSION)
+    #undef JSON_HEDLEY_TI_CL6X_VERSION
+#endif
+#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C6X__)
+    #define JSON_HEDLEY_TI_CL6X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL6X_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_CL6X_VERSION)
+    #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL6X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL7X_VERSION)
+    #undef JSON_HEDLEY_TI_CL7X_VERSION
+#endif
+#if defined(__TI_COMPILER_VERSION__) && defined(__C7000__)
+    #define JSON_HEDLEY_TI_CL7X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+
+#if defined(JSON_HEDLEY_TI_CL7X_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_CL7X_VERSION)
+    #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL7X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TI_CLPRU_VERSION)
+    #undef JSON_HEDLEY_TI_CLPRU_VERSION
+#endif
+#if defined(__TI_COMPILER_VERSION__) && defined(__PRU__)
+    #define JSON_HEDLEY_TI_CLPRU_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
+#endif
+
+#if defined(JSON_HEDLEY_TI_CLPRU_VERSION_CHECK)
+    #undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TI_CLPRU_VERSION)
+    #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CLPRU_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_CRAY_VERSION)
+    #undef JSON_HEDLEY_CRAY_VERSION
+#endif
+#if defined(_CRAYC)
+    #if defined(_RELEASE_PATCHLEVEL)
+        #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL)
+    #else
+        #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0)
+    #endif
+#endif
+
+#if defined(JSON_HEDLEY_CRAY_VERSION_CHECK)
+    #undef JSON_HEDLEY_CRAY_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_CRAY_VERSION)
+    #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_IAR_VERSION)
+    #undef JSON_HEDLEY_IAR_VERSION
+#endif
+#if defined(__IAR_SYSTEMS_ICC__)
+    #if __VER__ > 1000
+        #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000))
+    #else
+        #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(__VER__ / 100, __VER__ % 100, 0)
+    #endif
+#endif
+
+#if defined(JSON_HEDLEY_IAR_VERSION_CHECK)
+    #undef JSON_HEDLEY_IAR_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_IAR_VERSION)
+    #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_TINYC_VERSION)
+    #undef JSON_HEDLEY_TINYC_VERSION
+#endif
+#if defined(__TINYC__)
+    #define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100)
+#endif
+
+#if defined(JSON_HEDLEY_TINYC_VERSION_CHECK)
+    #undef JSON_HEDLEY_TINYC_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_TINYC_VERSION)
+    #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_DMC_VERSION)
+    #undef JSON_HEDLEY_DMC_VERSION
+#endif
+#if defined(__DMC__)
+    #define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf)
+#endif
+
+#if defined(JSON_HEDLEY_DMC_VERSION_CHECK)
+    #undef JSON_HEDLEY_DMC_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_DMC_VERSION)
+    #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_COMPCERT_VERSION)
+    #undef JSON_HEDLEY_COMPCERT_VERSION
+#endif
+#if defined(__COMPCERT_VERSION__)
+    #define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100)
+#endif
+
+#if defined(JSON_HEDLEY_COMPCERT_VERSION_CHECK)
+    #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_COMPCERT_VERSION)
+    #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_PELLES_VERSION)
+    #undef JSON_HEDLEY_PELLES_VERSION
+#endif
+#if defined(__POCC__)
+    #define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0)
+#endif
+
+#if defined(JSON_HEDLEY_PELLES_VERSION_CHECK)
+    #undef JSON_HEDLEY_PELLES_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_PELLES_VERSION)
+    #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_MCST_LCC_VERSION)
+    #undef JSON_HEDLEY_MCST_LCC_VERSION
+#endif
+#if defined(__LCC__) && defined(__LCC_MINOR__)
+    #define JSON_HEDLEY_MCST_LCC_VERSION JSON_HEDLEY_VERSION_ENCODE(__LCC__ / 100, __LCC__ % 100, __LCC_MINOR__)
+#endif
+
+#if defined(JSON_HEDLEY_MCST_LCC_VERSION_CHECK)
+    #undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_MCST_LCC_VERSION)
+    #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_MCST_LCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_VERSION)
+    #undef JSON_HEDLEY_GCC_VERSION
+#endif
+#if \
+    defined(JSON_HEDLEY_GNUC_VERSION) && \
+    !defined(__clang__) && \
+    !defined(JSON_HEDLEY_INTEL_VERSION) && \
+    !defined(JSON_HEDLEY_PGI_VERSION) && \
+    !defined(JSON_HEDLEY_ARM_VERSION) && \
+    !defined(JSON_HEDLEY_CRAY_VERSION) && \
+    !defined(JSON_HEDLEY_TI_VERSION) && \
+    !defined(JSON_HEDLEY_TI_ARMCL_VERSION) && \
+    !defined(JSON_HEDLEY_TI_CL430_VERSION) && \
+    !defined(JSON_HEDLEY_TI_CL2000_VERSION) && \
+    !defined(JSON_HEDLEY_TI_CL6X_VERSION) && \
+    !defined(JSON_HEDLEY_TI_CL7X_VERSION) && \
+    !defined(JSON_HEDLEY_TI_CLPRU_VERSION) && \
+    !defined(__COMPCERT__) && \
+    !defined(JSON_HEDLEY_MCST_LCC_VERSION)
+    #define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION
+#endif
+
+#if defined(JSON_HEDLEY_GCC_VERSION_CHECK)
+    #undef JSON_HEDLEY_GCC_VERSION_CHECK
+#endif
+#if defined(JSON_HEDLEY_GCC_VERSION)
+    #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
+#else
+    #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (0)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_ATTRIBUTE)
+    #undef JSON_HEDLEY_HAS_ATTRIBUTE
+#endif
+#if \
+  defined(__has_attribute) && \
+  ( \
+    (!defined(JSON_HEDLEY_IAR_VERSION) || JSON_HEDLEY_IAR_VERSION_CHECK(8,5,9)) \
+  )
+#  define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute)
+#else
+#  define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_ATTRIBUTE)
+    #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE
+#endif
+#if defined(__has_attribute)
+    #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_ATTRIBUTE)
+    #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE
+#endif
+#if defined(__has_attribute)
+    #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute)
+#else
+    #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE)
+    #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE
+#endif
+#if \
+    defined(__has_cpp_attribute) && \
+    defined(__cplusplus) && \
+    (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0))
+    #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute)
+#else
+    #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS)
+    #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS
+#endif
+#if !defined(__cplusplus) || !defined(__has_cpp_attribute)
+    #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0)
+#elif \
+    !defined(JSON_HEDLEY_PGI_VERSION) && \
+    !defined(JSON_HEDLEY_IAR_VERSION) && \
+    (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) && \
+    (!defined(JSON_HEDLEY_MSVC_VERSION) || JSON_HEDLEY_MSVC_VERSION_CHECK(19,20,0))
+    #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(ns::attribute)
+#else
+    #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE)
+    #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE
+#endif
+#if defined(__has_cpp_attribute) && defined(__cplusplus)
+    #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE)
+    #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE
+#endif
+#if defined(__has_cpp_attribute) && defined(__cplusplus)
+    #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute)
+#else
+    #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_BUILTIN)
+    #undef JSON_HEDLEY_HAS_BUILTIN
+#endif
+#if defined(__has_builtin)
+    #define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin)
+#else
+    #define JSON_HEDLEY_HAS_BUILTIN(builtin) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_BUILTIN)
+    #undef JSON_HEDLEY_GNUC_HAS_BUILTIN
+#endif
+#if defined(__has_builtin)
+    #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_BUILTIN)
+    #undef JSON_HEDLEY_GCC_HAS_BUILTIN
+#endif
+#if defined(__has_builtin)
+    #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin)
+#else
+    #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_FEATURE)
+    #undef JSON_HEDLEY_HAS_FEATURE
+#endif
+#if defined(__has_feature)
+    #define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature)
+#else
+    #define JSON_HEDLEY_HAS_FEATURE(feature) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_FEATURE)
+    #undef JSON_HEDLEY_GNUC_HAS_FEATURE
+#endif
+#if defined(__has_feature)
+    #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_FEATURE)
+    #undef JSON_HEDLEY_GCC_HAS_FEATURE
+#endif
+#if defined(__has_feature)
+    #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature)
+#else
+    #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_EXTENSION)
+    #undef JSON_HEDLEY_HAS_EXTENSION
+#endif
+#if defined(__has_extension)
+    #define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension)
+#else
+    #define JSON_HEDLEY_HAS_EXTENSION(extension) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_EXTENSION)
+    #undef JSON_HEDLEY_GNUC_HAS_EXTENSION
+#endif
+#if defined(__has_extension)
+    #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_EXTENSION)
+    #undef JSON_HEDLEY_GCC_HAS_EXTENSION
+#endif
+#if defined(__has_extension)
+    #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension)
+#else
+    #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE)
+    #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE
+#endif
+#if defined(__has_declspec_attribute)
+    #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute)
+#else
+    #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE)
+    #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE
+#endif
+#if defined(__has_declspec_attribute)
+    #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE)
+    #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE
+#endif
+#if defined(__has_declspec_attribute)
+    #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute)
+#else
+    #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_HAS_WARNING)
+    #undef JSON_HEDLEY_HAS_WARNING
+#endif
+#if defined(__has_warning)
+    #define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning)
+#else
+    #define JSON_HEDLEY_HAS_WARNING(warning) (0)
+#endif
+
+#if defined(JSON_HEDLEY_GNUC_HAS_WARNING)
+    #undef JSON_HEDLEY_GNUC_HAS_WARNING
+#endif
+#if defined(__has_warning)
+    #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning)
+#else
+    #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_GCC_HAS_WARNING)
+    #undef JSON_HEDLEY_GCC_HAS_WARNING
+#endif
+#if defined(__has_warning)
+    #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning)
+#else
+    #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if \
+    (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \
+    defined(__clang__) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \
+    JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,0,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) || \
+    JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,17) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(8,0,0) || \
+    (JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) && defined(__C99_PRAGMA_OPERATOR))
+    #define JSON_HEDLEY_PRAGMA(value) _Pragma(#value)
+#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
+    #define JSON_HEDLEY_PRAGMA(value) __pragma(value)
+#else
+    #define JSON_HEDLEY_PRAGMA(value)
+#endif
+
+#if defined(JSON_HEDLEY_DIAGNOSTIC_PUSH)
+    #undef JSON_HEDLEY_DIAGNOSTIC_PUSH
+#endif
+#if defined(JSON_HEDLEY_DIAGNOSTIC_POP)
+    #undef JSON_HEDLEY_DIAGNOSTIC_POP
+#endif
+#if defined(__clang__)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push")
+    #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop")
+#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)")
+    #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)")
+#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push")
+    #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop")
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push))
+    #define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop))
+#elif JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push")
+    #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop")
+#elif \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,4,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push")
+    #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop")
+#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)")
+    #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)")
+#else
+    #define JSON_HEDLEY_DIAGNOSTIC_PUSH
+    #define JSON_HEDLEY_DIAGNOSTIC_POP
+#endif
+
+/* JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ is for
+   HEDLEY INTERNAL USE ONLY.  API subject to change without notice. */
+#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_)
+    #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_
+#endif
+#if defined(__cplusplus)
+#  if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat")
+#    if JSON_HEDLEY_HAS_WARNING("-Wc++17-extensions")
+#      if JSON_HEDLEY_HAS_WARNING("-Wc++1z-extensions")
+#        define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \
+    _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \
+    _Pragma("clang diagnostic ignored \"-Wc++1z-extensions\"") \
+    xpr \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#      else
+#        define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \
+    _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \
+    xpr \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#      endif
+#    else
+#      define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \
+    xpr \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#    endif
+#  endif
+#endif
+#if !defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(x) x
+#endif
+
+#if defined(JSON_HEDLEY_CONST_CAST)
+    #undef JSON_HEDLEY_CONST_CAST
+#endif
+#if defined(__cplusplus)
+#  define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast<T>(expr))
+#elif \
+  JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \
+  JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) || \
+  JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+#  define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__ ({ \
+        JSON_HEDLEY_DIAGNOSTIC_PUSH \
+        JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL \
+        ((T) (expr)); \
+        JSON_HEDLEY_DIAGNOSTIC_POP \
+    }))
+#else
+#  define JSON_HEDLEY_CONST_CAST(T, expr) ((T) (expr))
+#endif
+
+#if defined(JSON_HEDLEY_REINTERPRET_CAST)
+    #undef JSON_HEDLEY_REINTERPRET_CAST
+#endif
+#if defined(__cplusplus)
+    #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast<T>(expr))
+#else
+    #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) ((T) (expr))
+#endif
+
+#if defined(JSON_HEDLEY_STATIC_CAST)
+    #undef JSON_HEDLEY_STATIC_CAST
+#endif
+#if defined(__cplusplus)
+    #define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast<T>(expr))
+#else
+    #define JSON_HEDLEY_STATIC_CAST(T, expr) ((T) (expr))
+#endif
+
+#if defined(JSON_HEDLEY_CPP_CAST)
+    #undef JSON_HEDLEY_CPP_CAST
+#endif
+#if defined(__cplusplus)
+#  if JSON_HEDLEY_HAS_WARNING("-Wold-style-cast")
+#    define JSON_HEDLEY_CPP_CAST(T, expr) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("clang diagnostic ignored \"-Wold-style-cast\"") \
+    ((T) (expr)) \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#  elif JSON_HEDLEY_IAR_VERSION_CHECK(8,3,0)
+#    define JSON_HEDLEY_CPP_CAST(T, expr) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("diag_suppress=Pe137") \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#  else
+#    define JSON_HEDLEY_CPP_CAST(T, expr) ((T) (expr))
+#  endif
+#else
+#  define JSON_HEDLEY_CPP_CAST(T, expr) (expr)
+#endif
+
+#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED)
+    #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wdeprecated-declarations")
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
+#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)")
+#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:1478 1786))
+#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1216,1444,1445")
+#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444")
+#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996))
+#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444")
+#elif \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718")
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && !defined(__cplusplus)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)")
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && defined(__cplusplus)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)")
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215")
+#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)")
+#else
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
+#endif
+
+#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS)
+    #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas")
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"")
+#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)")
+#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:161))
+#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675")
+#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"")
+#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:4068))
+#elif \
+    JSON_HEDLEY_TI_VERSION_CHECK(16,9,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163")
+#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163")
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161")
+#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 161")
+#else
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS
+#endif
+
+#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES)
+    #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wunknown-attributes")
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("clang diagnostic ignored \"-Wunknown-attributes\"")
+#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+#elif JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("warning(disable:1292)")
+#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:1292))
+#elif JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:5030))
+#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097,1098")
+#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097")
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("error_messages(off,attrskipunsup)")
+#elif \
+    JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1173")
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress=Pe1097")
+#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097")
+#else
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES
+#endif
+
+#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL)
+    #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wcast-qual")
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"")
+#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)")
+#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"")
+#else
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL
+#endif
+
+#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION)
+    #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wunused-function")
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("clang diagnostic ignored \"-Wunused-function\"")
+#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("GCC diagnostic ignored \"-Wunused-function\"")
+#elif JSON_HEDLEY_MSVC_VERSION_CHECK(1,0,0)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION __pragma(warning(disable:4505))
+#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("diag_suppress 3142")
+#else
+    #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION
+#endif
+
+#if defined(JSON_HEDLEY_DEPRECATED)
+    #undef JSON_HEDLEY_DEPRECATED
+#endif
+#if defined(JSON_HEDLEY_DEPRECATED_FOR)
+    #undef JSON_HEDLEY_DEPRECATED_FOR
+#endif
+#if \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since))
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement))
+#elif \
+    (JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) && !defined(JSON_HEDLEY_IAR_VERSION)) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) || \
+    JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(18,1,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since)))
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement)))
+#elif defined(__cplusplus) && (__cplusplus >= 201402L)
+    #define JSON_HEDLEY_DEPRECATED(since) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since)]])
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since "; use " #replacement)]])
+#elif \
+    JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \
+    JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0)
+    #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__))
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__))
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \
+    JSON_HEDLEY_PELLES_VERSION_CHECK(6,50,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated)
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated)
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated")
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated")
+#else
+    #define JSON_HEDLEY_DEPRECATED(since)
+    #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement)
+#endif
+
+#if defined(JSON_HEDLEY_UNAVAILABLE)
+    #undef JSON_HEDLEY_UNAVAILABLE
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since)))
+#else
+    #define JSON_HEDLEY_UNAVAILABLE(available_since)
+#endif
+
+#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT)
+    #undef JSON_HEDLEY_WARN_UNUSED_RESULT
+#endif
+#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT_MSG)
+    #undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \
+    JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) __attribute__((__warn_unused_result__))
+#elif (JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) >= 201907L)
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]])
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard(msg)]])
+#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard)
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]])
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]])
+#elif defined(_Check_return_) /* SAL */
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) _Check_return_
+#else
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT
+    #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg)
+#endif
+
+#if defined(JSON_HEDLEY_SENTINEL)
+    #undef JSON_HEDLEY_SENTINEL
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position)))
+#else
+    #define JSON_HEDLEY_SENTINEL(position)
+#endif
+
+#if defined(JSON_HEDLEY_NO_RETURN)
+    #undef JSON_HEDLEY_NO_RETURN
+#endif
+#if JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_NO_RETURN __noreturn
+#elif \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__))
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+    #define JSON_HEDLEY_NO_RETURN _Noreturn
+#elif defined(__cplusplus) && (__cplusplus >= 201103L)
+    #define JSON_HEDLEY_NO_RETURN JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[noreturn]])
+#elif \
+    JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,2,0) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0)
+    #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__))
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0)
+    #define JSON_HEDLEY_NO_RETURN _Pragma("does_not_return")
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_NO_RETURN __declspec(noreturn)
+#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus)
+    #define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;")
+#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0)
+    #define JSON_HEDLEY_NO_RETURN __attribute((noreturn))
+#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0)
+    #define JSON_HEDLEY_NO_RETURN __declspec(noreturn)
+#else
+    #define JSON_HEDLEY_NO_RETURN
+#endif
+
+#if defined(JSON_HEDLEY_NO_ESCAPE)
+    #undef JSON_HEDLEY_NO_ESCAPE
+#endif
+#if JSON_HEDLEY_HAS_ATTRIBUTE(noescape)
+    #define JSON_HEDLEY_NO_ESCAPE __attribute__((__noescape__))
+#else
+    #define JSON_HEDLEY_NO_ESCAPE
+#endif
+
+#if defined(JSON_HEDLEY_UNREACHABLE)
+    #undef JSON_HEDLEY_UNREACHABLE
+#endif
+#if defined(JSON_HEDLEY_UNREACHABLE_RETURN)
+    #undef JSON_HEDLEY_UNREACHABLE_RETURN
+#endif
+#if defined(JSON_HEDLEY_ASSUME)
+    #undef JSON_HEDLEY_ASSUME
+#endif
+#if \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_ASSUME(expr) __assume(expr)
+#elif JSON_HEDLEY_HAS_BUILTIN(__builtin_assume)
+    #define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr)
+#elif \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0)
+    #if defined(__cplusplus)
+        #define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr)
+    #else
+        #define JSON_HEDLEY_ASSUME(expr) _nassert(expr)
+    #endif
+#endif
+#if \
+    (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \
+    JSON_HEDLEY_PGI_VERSION_CHECK(18,10,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5) || \
+    JSON_HEDLEY_CRAY_VERSION_CHECK(10,0,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable()
+#elif defined(JSON_HEDLEY_ASSUME)
+    #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0)
+#endif
+#if !defined(JSON_HEDLEY_ASSUME)
+    #if defined(JSON_HEDLEY_UNREACHABLE)
+        #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, ((expr) ? 1 : (JSON_HEDLEY_UNREACHABLE(), 1)))
+    #else
+        #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, expr)
+    #endif
+#endif
+#if defined(JSON_HEDLEY_UNREACHABLE)
+    #if  \
+        JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \
+        JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0)
+        #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (JSON_HEDLEY_STATIC_CAST(void, JSON_HEDLEY_ASSUME(0)), (value))
+    #else
+        #define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE()
+    #endif
+#else
+    #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (value)
+#endif
+#if !defined(JSON_HEDLEY_UNREACHABLE)
+    #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0)
+#endif
+
+JSON_HEDLEY_DIAGNOSTIC_PUSH
+#if JSON_HEDLEY_HAS_WARNING("-Wpedantic")
+    #pragma clang diagnostic ignored "-Wpedantic"
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat-pedantic") && defined(__cplusplus)
+    #pragma clang diagnostic ignored "-Wc++98-compat-pedantic"
+#endif
+#if JSON_HEDLEY_GCC_HAS_WARNING("-Wvariadic-macros",4,0,0)
+    #if defined(__clang__)
+        #pragma clang diagnostic ignored "-Wvariadic-macros"
+    #elif defined(JSON_HEDLEY_GCC_VERSION)
+        #pragma GCC diagnostic ignored "-Wvariadic-macros"
+    #endif
+#endif
+#if defined(JSON_HEDLEY_NON_NULL)
+    #undef JSON_HEDLEY_NON_NULL
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0)
+    #define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__)))
+#else
+    #define JSON_HEDLEY_NON_NULL(...)
+#endif
+JSON_HEDLEY_DIAGNOSTIC_POP
+
+#if defined(JSON_HEDLEY_PRINTF_FORMAT)
+    #undef JSON_HEDLEY_PRINTF_FORMAT
+#endif
+#if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && !defined(__USE_MINGW_ANSI_STDIO)
+    #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check)))
+#elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && defined(__USE_MINGW_ANSI_STDIO)
+    #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check)))
+#elif \
+    JSON_HEDLEY_HAS_ATTRIBUTE(format) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check)))
+#elif JSON_HEDLEY_PELLES_VERSION_CHECK(6,0,0)
+    #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __declspec(vaformat(printf,string_idx,first_to_check))
+#else
+    #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check)
+#endif
+
+#if defined(JSON_HEDLEY_CONSTEXPR)
+    #undef JSON_HEDLEY_CONSTEXPR
+#endif
+#if defined(__cplusplus)
+    #if __cplusplus >= 201103L
+        #define JSON_HEDLEY_CONSTEXPR JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(constexpr)
+    #endif
+#endif
+#if !defined(JSON_HEDLEY_CONSTEXPR)
+    #define JSON_HEDLEY_CONSTEXPR
+#endif
+
+#if defined(JSON_HEDLEY_PREDICT)
+    #undef JSON_HEDLEY_PREDICT
+#endif
+#if defined(JSON_HEDLEY_LIKELY)
+    #undef JSON_HEDLEY_LIKELY
+#endif
+#if defined(JSON_HEDLEY_UNLIKELY)
+    #undef JSON_HEDLEY_UNLIKELY
+#endif
+#if defined(JSON_HEDLEY_UNPREDICTABLE)
+    #undef JSON_HEDLEY_UNPREDICTABLE
+#endif
+#if JSON_HEDLEY_HAS_BUILTIN(__builtin_unpredictable)
+    #define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable((expr))
+#endif
+#if \
+  (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) && !defined(JSON_HEDLEY_PGI_VERSION)) || \
+  JSON_HEDLEY_GCC_VERSION_CHECK(9,0,0) || \
+  JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+#  define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability(  (expr), (value), (probability))
+#  define JSON_HEDLEY_PREDICT_TRUE(expr, probability)   __builtin_expect_with_probability(!!(expr),    1   , (probability))
+#  define JSON_HEDLEY_PREDICT_FALSE(expr, probability)  __builtin_expect_with_probability(!!(expr),    0   , (probability))
+#  define JSON_HEDLEY_LIKELY(expr)                      __builtin_expect                 (!!(expr),    1                  )
+#  define JSON_HEDLEY_UNLIKELY(expr)                    __builtin_expect                 (!!(expr),    0                  )
+#elif \
+  (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \
+  JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \
+  JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+  (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \
+  JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+  JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+  JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+  JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \
+  JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \
+  JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \
+  JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \
+  JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+  JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+  JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,27) || \
+  JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \
+  JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+#  define JSON_HEDLEY_PREDICT(expr, expected, probability) \
+    (((probability) >= 0.9) ? __builtin_expect((expr), (expected)) : (JSON_HEDLEY_STATIC_CAST(void, expected), (expr)))
+#  define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \
+    (__extension__ ({ \
+        double hedley_probability_ = (probability); \
+        ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 1) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 0) : !!(expr))); \
+    }))
+#  define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \
+    (__extension__ ({ \
+        double hedley_probability_ = (probability); \
+        ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 0) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 1) : !!(expr))); \
+    }))
+#  define JSON_HEDLEY_LIKELY(expr)   __builtin_expect(!!(expr), 1)
+#  define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0)
+#else
+#  define JSON_HEDLEY_PREDICT(expr, expected, probability) (JSON_HEDLEY_STATIC_CAST(void, expected), (expr))
+#  define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr))
+#  define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr))
+#  define JSON_HEDLEY_LIKELY(expr) (!!(expr))
+#  define JSON_HEDLEY_UNLIKELY(expr) (!!(expr))
+#endif
+#if !defined(JSON_HEDLEY_UNPREDICTABLE)
+    #define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5)
+#endif
+
+#if defined(JSON_HEDLEY_MALLOC)
+    #undef JSON_HEDLEY_MALLOC
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_MALLOC __attribute__((__malloc__))
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0)
+    #define JSON_HEDLEY_MALLOC _Pragma("returns_new_memory")
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_MALLOC __declspec(restrict)
+#else
+    #define JSON_HEDLEY_MALLOC
+#endif
+
+#if defined(JSON_HEDLEY_PURE)
+    #undef JSON_HEDLEY_PURE
+#endif
+#if \
+  JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \
+  JSON_HEDLEY_GCC_VERSION_CHECK(2,96,0) || \
+  JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+  JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+  JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+  JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+  JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+  (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+  (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+  (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+  (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+  JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+  JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+  JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
+  JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+#  define JSON_HEDLEY_PURE __attribute__((__pure__))
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0)
+#  define JSON_HEDLEY_PURE _Pragma("does_not_write_global_data")
+#elif defined(__cplusplus) && \
+    ( \
+      JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \
+      JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) || \
+      JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) \
+    )
+#  define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;")
+#else
+#  define JSON_HEDLEY_PURE
+#endif
+
+#if defined(JSON_HEDLEY_CONST)
+    #undef JSON_HEDLEY_CONST
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(const) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(2,5,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_CONST __attribute__((__const__))
+#elif \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0)
+    #define JSON_HEDLEY_CONST _Pragma("no_side_effect")
+#else
+    #define JSON_HEDLEY_CONST JSON_HEDLEY_PURE
+#endif
+
+#if defined(JSON_HEDLEY_RESTRICT)
+    #undef JSON_HEDLEY_RESTRICT
+#endif
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus)
+    #define JSON_HEDLEY_RESTRICT restrict
+#elif \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+    JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,4) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)) || \
+    JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \
+    defined(__clang__) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_RESTRICT __restrict
+#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,3,0) && !defined(__cplusplus)
+    #define JSON_HEDLEY_RESTRICT _Restrict
+#else
+    #define JSON_HEDLEY_RESTRICT
+#endif
+
+#if defined(JSON_HEDLEY_INLINE)
+    #undef JSON_HEDLEY_INLINE
+#endif
+#if \
+    (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \
+    (defined(__cplusplus) && (__cplusplus >= 199711L))
+    #define JSON_HEDLEY_INLINE inline
+#elif \
+    defined(JSON_HEDLEY_GCC_VERSION) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(6,2,0)
+    #define JSON_HEDLEY_INLINE __inline__
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,1,0) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_INLINE __inline
+#else
+    #define JSON_HEDLEY_INLINE
+#endif
+
+#if defined(JSON_HEDLEY_ALWAYS_INLINE)
+    #undef JSON_HEDLEY_ALWAYS_INLINE
+#endif
+#if \
+  JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \
+  JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \
+  JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+  JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+  JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+  JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+  JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+  (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+  (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+  (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+  (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+  JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+  JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+  JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+  JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \
+  JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0)
+#  define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE
+#elif \
+  JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \
+  JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+#  define JSON_HEDLEY_ALWAYS_INLINE __forceinline
+#elif defined(__cplusplus) && \
+    ( \
+      JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+      JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+      JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+      JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \
+      JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+      JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) \
+    )
+#  define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;")
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+#  define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced")
+#else
+#  define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE
+#endif
+
+#if defined(JSON_HEDLEY_NEVER_INLINE)
+    #undef JSON_HEDLEY_NEVER_INLINE
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
+    JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \
+    (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \
+    (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \
+    (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \
+    (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \
+    JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \
+    JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \
+    JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0)
+    #define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__))
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline)
+#elif JSON_HEDLEY_PGI_VERSION_CHECK(10,2,0)
+    #define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline")
+#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus)
+    #define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;")
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+    #define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never")
+#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0)
+    #define JSON_HEDLEY_NEVER_INLINE __attribute((noinline))
+#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0)
+    #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline)
+#else
+    #define JSON_HEDLEY_NEVER_INLINE
+#endif
+
+#if defined(JSON_HEDLEY_PRIVATE)
+    #undef JSON_HEDLEY_PRIVATE
+#endif
+#if defined(JSON_HEDLEY_PUBLIC)
+    #undef JSON_HEDLEY_PUBLIC
+#endif
+#if defined(JSON_HEDLEY_IMPORT)
+    #undef JSON_HEDLEY_IMPORT
+#endif
+#if defined(_WIN32) || defined(__CYGWIN__)
+#  define JSON_HEDLEY_PRIVATE
+#  define JSON_HEDLEY_PUBLIC   __declspec(dllexport)
+#  define JSON_HEDLEY_IMPORT   __declspec(dllimport)
+#else
+#  if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \
+    JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \
+    ( \
+      defined(__TI_EABI__) && \
+      ( \
+        (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
+        JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) \
+      ) \
+    ) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+#    define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden")))
+#    define JSON_HEDLEY_PUBLIC  __attribute__((__visibility__("default")))
+#  else
+#    define JSON_HEDLEY_PRIVATE
+#    define JSON_HEDLEY_PUBLIC
+#  endif
+#  define JSON_HEDLEY_IMPORT    extern
+#endif
+
+#if defined(JSON_HEDLEY_NO_THROW)
+    #undef JSON_HEDLEY_NO_THROW
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__))
+#elif \
+    JSON_HEDLEY_MSVC_VERSION_CHECK(13,1,0) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0)
+    #define JSON_HEDLEY_NO_THROW __declspec(nothrow)
+#else
+    #define JSON_HEDLEY_NO_THROW
+#endif
+
+#if defined(JSON_HEDLEY_FALL_THROUGH)
+    #undef JSON_HEDLEY_FALL_THROUGH
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(7,0,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__))
+#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough)
+    #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[clang::fallthrough]])
+#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough)
+    #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[fallthrough]])
+#elif defined(__fallthrough) /* SAL */
+    #define JSON_HEDLEY_FALL_THROUGH __fallthrough
+#else
+    #define JSON_HEDLEY_FALL_THROUGH
+#endif
+
+#if defined(JSON_HEDLEY_RETURNS_NON_NULL)
+    #undef JSON_HEDLEY_RETURNS_NON_NULL
+#endif
+#if \
+    JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__))
+#elif defined(_Ret_notnull_) /* SAL */
+    #define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_
+#else
+    #define JSON_HEDLEY_RETURNS_NON_NULL
+#endif
+
+#if defined(JSON_HEDLEY_ARRAY_PARAM)
+    #undef JSON_HEDLEY_ARRAY_PARAM
+#endif
+#if \
+    defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
+    !defined(__STDC_NO_VLA__) && \
+    !defined(__cplusplus) && \
+    !defined(JSON_HEDLEY_PGI_VERSION) && \
+    !defined(JSON_HEDLEY_TINYC_VERSION)
+    #define JSON_HEDLEY_ARRAY_PARAM(name) (name)
+#else
+    #define JSON_HEDLEY_ARRAY_PARAM(name)
+#endif
+
+#if defined(JSON_HEDLEY_IS_CONSTANT)
+    #undef JSON_HEDLEY_IS_CONSTANT
+#endif
+#if defined(JSON_HEDLEY_REQUIRE_CONSTEXPR)
+    #undef JSON_HEDLEY_REQUIRE_CONSTEXPR
+#endif
+/* JSON_HEDLEY_IS_CONSTEXPR_ is for
+   HEDLEY INTERNAL USE ONLY.  API subject to change without notice. */
+#if defined(JSON_HEDLEY_IS_CONSTEXPR_)
+    #undef JSON_HEDLEY_IS_CONSTEXPR_
+#endif
+#if \
+    JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \
+    JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \
+    JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+    JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,19) || \
+    JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
+    JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \
+    JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \
+    (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) && !defined(__cplusplus)) || \
+    JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \
+    JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10)
+    #define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr)
+#endif
+#if !defined(__cplusplus)
+#  if \
+       JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \
+       JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \
+       JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+       JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \
+       JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \
+       JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \
+       JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,24)
+#if defined(__INTPTR_TYPE__)
+    #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0)), int*)
+#else
+    #include <stdint.h>
+    #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((intptr_t) ((expr) * 0)) : (int*) 0)), int*)
+#endif
+#  elif \
+       ( \
+          defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \
+          !defined(JSON_HEDLEY_SUNPRO_VERSION) && \
+          !defined(JSON_HEDLEY_PGI_VERSION) && \
+          !defined(JSON_HEDLEY_IAR_VERSION)) || \
+       (JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) && !defined(JSON_HEDLEY_IAR_VERSION)) || \
+       JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \
+       JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) || \
+       JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \
+       JSON_HEDLEY_ARM_VERSION_CHECK(5,3,0)
+#if defined(__INTPTR_TYPE__)
+    #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0), int*: 1, void*: 0)
+#else
+    #include <stdint.h>
+    #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((intptr_t) * 0) : (int*) 0), int*: 1, void*: 0)
+#endif
+#  elif \
+       defined(JSON_HEDLEY_GCC_VERSION) || \
+       defined(JSON_HEDLEY_INTEL_VERSION) || \
+       defined(JSON_HEDLEY_TINYC_VERSION) || \
+       defined(JSON_HEDLEY_TI_ARMCL_VERSION) || \
+       JSON_HEDLEY_TI_CL430_VERSION_CHECK(18,12,0) || \
+       defined(JSON_HEDLEY_TI_CL2000_VERSION) || \
+       defined(JSON_HEDLEY_TI_CL6X_VERSION) || \
+       defined(JSON_HEDLEY_TI_CL7X_VERSION) || \
+       defined(JSON_HEDLEY_TI_CLPRU_VERSION) || \
+       defined(__clang__)
+#    define JSON_HEDLEY_IS_CONSTEXPR_(expr) ( \
+        sizeof(void) != \
+        sizeof(*( \
+                  1 ? \
+                  ((void*) ((expr) * 0L) ) : \
+((struct { char v[sizeof(void) * 2]; } *) 1) \
+                ) \
+              ) \
+                                            )
+#  endif
+#endif
+#if defined(JSON_HEDLEY_IS_CONSTEXPR_)
+    #if !defined(JSON_HEDLEY_IS_CONSTANT)
+        #define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY_IS_CONSTEXPR_(expr)
+    #endif
+    #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY_IS_CONSTEXPR_(expr) ? (expr) : (-1))
+#else
+    #if !defined(JSON_HEDLEY_IS_CONSTANT)
+        #define JSON_HEDLEY_IS_CONSTANT(expr) (0)
+    #endif
+    #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr)
+#endif
+
+#if defined(JSON_HEDLEY_BEGIN_C_DECLS)
+    #undef JSON_HEDLEY_BEGIN_C_DECLS
+#endif
+#if defined(JSON_HEDLEY_END_C_DECLS)
+    #undef JSON_HEDLEY_END_C_DECLS
+#endif
+#if defined(JSON_HEDLEY_C_DECL)
+    #undef JSON_HEDLEY_C_DECL
+#endif
+#if defined(__cplusplus)
+    #define JSON_HEDLEY_BEGIN_C_DECLS extern "C" {
+    #define JSON_HEDLEY_END_C_DECLS }
+    #define JSON_HEDLEY_C_DECL extern "C"
+#else
+    #define JSON_HEDLEY_BEGIN_C_DECLS
+    #define JSON_HEDLEY_END_C_DECLS
+    #define JSON_HEDLEY_C_DECL
+#endif
+
+#if defined(JSON_HEDLEY_STATIC_ASSERT)
+    #undef JSON_HEDLEY_STATIC_ASSERT
+#endif
+#if \
+  !defined(__cplusplus) && ( \
+      (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \
+      (JSON_HEDLEY_HAS_FEATURE(c_static_assert) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \
+      JSON_HEDLEY_GCC_VERSION_CHECK(6,0,0) || \
+      JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
+      defined(_Static_assert) \
+    )
+#  define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message)
+#elif \
+  (defined(__cplusplus) && (__cplusplus >= 201103L)) || \
+  JSON_HEDLEY_MSVC_VERSION_CHECK(16,0,0) || \
+  JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+#  define JSON_HEDLEY_STATIC_ASSERT(expr, message) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(static_assert(expr, message))
+#else
+#  define JSON_HEDLEY_STATIC_ASSERT(expr, message)
+#endif
+
+#if defined(JSON_HEDLEY_NULL)
+    #undef JSON_HEDLEY_NULL
+#endif
+#if defined(__cplusplus)
+    #if __cplusplus >= 201103L
+        #define JSON_HEDLEY_NULL JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(nullptr)
+    #elif defined(NULL)
+        #define JSON_HEDLEY_NULL NULL
+    #else
+        #define JSON_HEDLEY_NULL JSON_HEDLEY_STATIC_CAST(void*, 0)
+    #endif
+#elif defined(NULL)
+    #define JSON_HEDLEY_NULL NULL
+#else
+    #define JSON_HEDLEY_NULL ((void*) 0)
+#endif
+
+#if defined(JSON_HEDLEY_MESSAGE)
+    #undef JSON_HEDLEY_MESSAGE
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas")
+#  define JSON_HEDLEY_MESSAGE(msg) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \
+    JSON_HEDLEY_PRAGMA(message msg) \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#elif \
+  JSON_HEDLEY_GCC_VERSION_CHECK(4,4,0) || \
+  JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+#  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg)
+#elif JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0)
+#  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg)
+#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
+#  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg))
+#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,0,0)
+#  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg))
+#else
+#  define JSON_HEDLEY_MESSAGE(msg)
+#endif
+
+#if defined(JSON_HEDLEY_WARNING)
+    #undef JSON_HEDLEY_WARNING
+#endif
+#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas")
+#  define JSON_HEDLEY_WARNING(msg) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \
+    JSON_HEDLEY_PRAGMA(clang warning msg) \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#elif \
+  JSON_HEDLEY_GCC_VERSION_CHECK(4,8,0) || \
+  JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \
+  JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
+#  define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg)
+#elif \
+  JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \
+  JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+#  define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg))
+#else
+#  define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg)
+#endif
+
+#if defined(JSON_HEDLEY_REQUIRE)
+    #undef JSON_HEDLEY_REQUIRE
+#endif
+#if defined(JSON_HEDLEY_REQUIRE_MSG)
+    #undef JSON_HEDLEY_REQUIRE_MSG
+#endif
+#if JSON_HEDLEY_HAS_ATTRIBUTE(diagnose_if)
+#  if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat")
+#    define JSON_HEDLEY_REQUIRE(expr) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \
+    __attribute__((diagnose_if(!(expr), #expr, "error"))) \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#    define JSON_HEDLEY_REQUIRE_MSG(expr,msg) \
+    JSON_HEDLEY_DIAGNOSTIC_PUSH \
+    _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \
+    __attribute__((diagnose_if(!(expr), msg, "error"))) \
+    JSON_HEDLEY_DIAGNOSTIC_POP
+#  else
+#    define JSON_HEDLEY_REQUIRE(expr) __attribute__((diagnose_if(!(expr), #expr, "error")))
+#    define JSON_HEDLEY_REQUIRE_MSG(expr,msg) __attribute__((diagnose_if(!(expr), msg, "error")))
+#  endif
+#else
+#  define JSON_HEDLEY_REQUIRE(expr)
+#  define JSON_HEDLEY_REQUIRE_MSG(expr,msg)
+#endif
+
+#if defined(JSON_HEDLEY_FLAGS)
+    #undef JSON_HEDLEY_FLAGS
+#endif
+#if JSON_HEDLEY_HAS_ATTRIBUTE(flag_enum) && (!defined(__cplusplus) || JSON_HEDLEY_HAS_WARNING("-Wbitfield-enum-conversion"))
+    #define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__))
+#else
+    #define JSON_HEDLEY_FLAGS
+#endif
+
+#if defined(JSON_HEDLEY_FLAGS_CAST)
+    #undef JSON_HEDLEY_FLAGS_CAST
+#endif
+#if JSON_HEDLEY_INTEL_VERSION_CHECK(19,0,0)
+#  define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__ ({ \
+        JSON_HEDLEY_DIAGNOSTIC_PUSH \
+        _Pragma("warning(disable:188)") \
+        ((T) (expr)); \
+        JSON_HEDLEY_DIAGNOSTIC_POP \
+    }))
+#else
+#  define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr)
+#endif
+
+#if defined(JSON_HEDLEY_EMPTY_BASES)
+    #undef JSON_HEDLEY_EMPTY_BASES
+#endif
+#if \
+    (JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,23918) && !JSON_HEDLEY_MSVC_VERSION_CHECK(20,0,0)) || \
+    JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0)
+    #define JSON_HEDLEY_EMPTY_BASES __declspec(empty_bases)
+#else
+    #define JSON_HEDLEY_EMPTY_BASES
+#endif
+
+/* Remaining macros are deprecated. */
+
+#if defined(JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK)
+    #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK
+#endif
+#if defined(__clang__)
+    #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) (0)
+#else
+    #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
+#endif
+
+#if defined(JSON_HEDLEY_CLANG_HAS_ATTRIBUTE)
+    #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE
+#endif
+#define JSON_HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_ATTRIBUTE(attribute)
+
+#if defined(JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE)
+    #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE
+#endif
+#define JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute)
+
+#if defined(JSON_HEDLEY_CLANG_HAS_BUILTIN)
+    #undef JSON_HEDLEY_CLANG_HAS_BUILTIN
+#endif
+#define JSON_HEDLEY_CLANG_HAS_BUILTIN(builtin) JSON_HEDLEY_HAS_BUILTIN(builtin)
+
+#if defined(JSON_HEDLEY_CLANG_HAS_FEATURE)
+    #undef JSON_HEDLEY_CLANG_HAS_FEATURE
+#endif
+#define JSON_HEDLEY_CLANG_HAS_FEATURE(feature) JSON_HEDLEY_HAS_FEATURE(feature)
+
+#if defined(JSON_HEDLEY_CLANG_HAS_EXTENSION)
+    #undef JSON_HEDLEY_CLANG_HAS_EXTENSION
+#endif
+#define JSON_HEDLEY_CLANG_HAS_EXTENSION(extension) JSON_HEDLEY_HAS_EXTENSION(extension)
+
+#if defined(JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE)
+    #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE
+#endif
+#define JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute)
+
+#if defined(JSON_HEDLEY_CLANG_HAS_WARNING)
+    #undef JSON_HEDLEY_CLANG_HAS_WARNING
+#endif
+#define JSON_HEDLEY_CLANG_HAS_WARNING(warning) JSON_HEDLEY_HAS_WARNING(warning)
+
+#endif /* !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < X) */
+
+// #include <nlohmann/detail/meta/detected.hpp>
+
+
+#include <type_traits>
+
+// #include <nlohmann/detail/meta/void_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+template<typename ...Ts> struct make_void
+{
+    using type = void;
+};
+template<typename ...Ts> using void_t = typename make_void<Ts...>::type;
+} // namespace detail
+}  // namespace nlohmann
+
+
+// https://en.cppreference.com/w/cpp/experimental/is_detected
+namespace nlohmann
+{
+namespace detail
+{
+struct nonesuch
+{
+    nonesuch() = delete;
+    ~nonesuch() = delete;
+    nonesuch(nonesuch const&) = delete;
+    nonesuch(nonesuch const&&) = delete;
+    void operator=(nonesuch const&) = delete;
+    void operator=(nonesuch&&) = delete;
+};
+
+template<class Default,
+         class AlwaysVoid,
+         template<class...> class Op,
+         class... Args>
+struct detector
+{
+    using value_t = std::false_type;
+    using type = Default;
+};
+
+template<class Default, template<class...> class Op, class... Args>
+struct detector<Default, void_t<Op<Args...>>, Op, Args...>
+{
+    using value_t = std::true_type;
+    using type = Op<Args...>;
+};
+
+template<template<class...> class Op, class... Args>
+using is_detected = typename detector<nonesuch, void, Op, Args...>::value_t;
+
+template<template<class...> class Op, class... Args>
+struct is_detected_lazy : is_detected<Op, Args...> { };
+
+template<template<class...> class Op, class... Args>
+using detected_t = typename detector<nonesuch, void, Op, Args...>::type;
+
+template<class Default, template<class...> class Op, class... Args>
+using detected_or = detector<Default, void, Op, Args...>;
+
+template<class Default, template<class...> class Op, class... Args>
+using detected_or_t = typename detected_or<Default, Op, Args...>::type;
+
+template<class Expected, template<class...> class Op, class... Args>
+using is_detected_exact = std::is_same<Expected, detected_t<Op, Args...>>;
+
+template<class To, template<class...> class Op, class... Args>
+using is_detected_convertible =
+    std::is_convertible<detected_t<Op, Args...>, To>;
+}  // namespace detail
+}  // namespace nlohmann
+
+
+// This file contains all internal macro definitions
+// You MUST include macro_unscope.hpp at the end of json.hpp to undef all of them
+
+// exclude unsupported compilers
+#if !defined(JSON_SKIP_UNSUPPORTED_COMPILER_CHECK)
+    #if defined(__clang__)
+        #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400
+            #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
+        #endif
+    #elif defined(__GNUC__) && !(defined(__ICC) || defined(__INTEL_COMPILER))
+        #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800
+            #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
+        #endif
+    #endif
+#endif
+
+// C++ language standard detection
+// if the user manually specified the used c++ version this is skipped
+#if !defined(JSON_HAS_CPP_20) && !defined(JSON_HAS_CPP_17) && !defined(JSON_HAS_CPP_14) && !defined(JSON_HAS_CPP_11)
+    #if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L)
+        #define JSON_HAS_CPP_20
+        #define JSON_HAS_CPP_17
+        #define JSON_HAS_CPP_14
+    #elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
+        #define JSON_HAS_CPP_17
+        #define JSON_HAS_CPP_14
+    #elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
+        #define JSON_HAS_CPP_14
+    #endif
+    // the cpp 11 flag is always specified because it is the minimal required version
+    #define JSON_HAS_CPP_11
+#endif
+
+// disable documentation warnings on clang
+#if defined(__clang__)
+    #pragma clang diagnostic push
+    #pragma clang diagnostic ignored "-Wdocumentation"
+    #pragma clang diagnostic ignored "-Wdocumentation-unknown-command"
+#endif
+
+// allow to disable exceptions
+#if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)) && !defined(JSON_NOEXCEPTION)
+    #define JSON_THROW(exception) throw exception
+    #define JSON_TRY try
+    #define JSON_CATCH(exception) catch(exception)
+    #define JSON_INTERNAL_CATCH(exception) catch(exception)
+#else
+    #include <cstdlib>
+    #define JSON_THROW(exception) std::abort()
+    #define JSON_TRY if(true)
+    #define JSON_CATCH(exception) if(false)
+    #define JSON_INTERNAL_CATCH(exception) if(false)
+#endif
+
+// override exception macros
+#if defined(JSON_THROW_USER)
+    #undef JSON_THROW
+    #define JSON_THROW JSON_THROW_USER
+#endif
+#if defined(JSON_TRY_USER)
+    #undef JSON_TRY
+    #define JSON_TRY JSON_TRY_USER
+#endif
+#if defined(JSON_CATCH_USER)
+    #undef JSON_CATCH
+    #define JSON_CATCH JSON_CATCH_USER
+    #undef JSON_INTERNAL_CATCH
+    #define JSON_INTERNAL_CATCH JSON_CATCH_USER
+#endif
+#if defined(JSON_INTERNAL_CATCH_USER)
+    #undef JSON_INTERNAL_CATCH
+    #define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER
+#endif
+
+// allow to override assert
+#if !defined(JSON_ASSERT)
+    #include <cassert> // assert
+    #define JSON_ASSERT(x) assert(x)
+#endif
+
+// allow to access some private functions (needed by the test suite)
+#if defined(JSON_TESTS_PRIVATE)
+    #define JSON_PRIVATE_UNLESS_TESTED public
+#else
+    #define JSON_PRIVATE_UNLESS_TESTED private
+#endif
+
+/*!
+@brief macro to briefly define a mapping between an enum and JSON
+@def NLOHMANN_JSON_SERIALIZE_ENUM
+@since version 3.4.0
+*/
+#define NLOHMANN_JSON_SERIALIZE_ENUM(ENUM_TYPE, ...)                                            \
+    template<typename BasicJsonType>                                                            \
+    inline void to_json(BasicJsonType& j, const ENUM_TYPE& e)                                   \
+    {                                                                                           \
+        static_assert(std::is_enum<ENUM_TYPE>::value, #ENUM_TYPE " must be an enum!");          \
+        static const std::pair<ENUM_TYPE, BasicJsonType> m[] = __VA_ARGS__;                     \
+        auto it = std::find_if(std::begin(m), std::end(m),                                      \
+                               [e](const std::pair<ENUM_TYPE, BasicJsonType>& ej_pair) -> bool  \
+        {                                                                                       \
+            return ej_pair.first == e;                                                          \
+        });                                                                                     \
+        j = ((it != std::end(m)) ? it : std::begin(m))->second;                                 \
+    }                                                                                           \
+    template<typename BasicJsonType>                                                            \
+    inline void from_json(const BasicJsonType& j, ENUM_TYPE& e)                                 \
+    {                                                                                           \
+        static_assert(std::is_enum<ENUM_TYPE>::value, #ENUM_TYPE " must be an enum!");          \
+        static const std::pair<ENUM_TYPE, BasicJsonType> m[] = __VA_ARGS__;                     \
+        auto it = std::find_if(std::begin(m), std::end(m),                                      \
+                               [&j](const std::pair<ENUM_TYPE, BasicJsonType>& ej_pair) -> bool \
+        {                                                                                       \
+            return ej_pair.second == j;                                                         \
+        });                                                                                     \
+        e = ((it != std::end(m)) ? it : std::begin(m))->first;                                  \
+    }
+
+// Ugly macros to avoid uglier copy-paste when specializing basic_json. They
+// may be removed in the future once the class is split.
+
+#define NLOHMANN_BASIC_JSON_TPL_DECLARATION                                \
+    template<template<typename, typename, typename...> class ObjectType,   \
+             template<typename, typename...> class ArrayType,              \
+             class StringType, class BooleanType, class NumberIntegerType, \
+             class NumberUnsignedType, class NumberFloatType,              \
+             template<typename> class AllocatorType,                       \
+             template<typename, typename = void> class JSONSerializer,     \
+             class BinaryType>
+
+#define NLOHMANN_BASIC_JSON_TPL                                            \
+    basic_json<ObjectType, ArrayType, StringType, BooleanType,             \
+    NumberIntegerType, NumberUnsignedType, NumberFloatType,                \
+    AllocatorType, JSONSerializer, BinaryType>
+
+// Macros to simplify conversion from/to types
+
+#define NLOHMANN_JSON_EXPAND( x ) x
+#define NLOHMANN_JSON_GET_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, NAME,...) NAME
+#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \
+        NLOHMANN_JSON_PASTE64, \
+        NLOHMANN_JSON_PASTE63, \
+        NLOHMANN_JSON_PASTE62, \
+        NLOHMANN_JSON_PASTE61, \
+        NLOHMANN_JSON_PASTE60, \
+        NLOHMANN_JSON_PASTE59, \
+        NLOHMANN_JSON_PASTE58, \
+        NLOHMANN_JSON_PASTE57, \
+        NLOHMANN_JSON_PASTE56, \
+        NLOHMANN_JSON_PASTE55, \
+        NLOHMANN_JSON_PASTE54, \
+        NLOHMANN_JSON_PASTE53, \
+        NLOHMANN_JSON_PASTE52, \
+        NLOHMANN_JSON_PASTE51, \
+        NLOHMANN_JSON_PASTE50, \
+        NLOHMANN_JSON_PASTE49, \
+        NLOHMANN_JSON_PASTE48, \
+        NLOHMANN_JSON_PASTE47, \
+        NLOHMANN_JSON_PASTE46, \
+        NLOHMANN_JSON_PASTE45, \
+        NLOHMANN_JSON_PASTE44, \
+        NLOHMANN_JSON_PASTE43, \
+        NLOHMANN_JSON_PASTE42, \
+        NLOHMANN_JSON_PASTE41, \
+        NLOHMANN_JSON_PASTE40, \
+        NLOHMANN_JSON_PASTE39, \
+        NLOHMANN_JSON_PASTE38, \
+        NLOHMANN_JSON_PASTE37, \
+        NLOHMANN_JSON_PASTE36, \
+        NLOHMANN_JSON_PASTE35, \
+        NLOHMANN_JSON_PASTE34, \
+        NLOHMANN_JSON_PASTE33, \
+        NLOHMANN_JSON_PASTE32, \
+        NLOHMANN_JSON_PASTE31, \
+        NLOHMANN_JSON_PASTE30, \
+        NLOHMANN_JSON_PASTE29, \
+        NLOHMANN_JSON_PASTE28, \
+        NLOHMANN_JSON_PASTE27, \
+        NLOHMANN_JSON_PASTE26, \
+        NLOHMANN_JSON_PASTE25, \
+        NLOHMANN_JSON_PASTE24, \
+        NLOHMANN_JSON_PASTE23, \
+        NLOHMANN_JSON_PASTE22, \
+        NLOHMANN_JSON_PASTE21, \
+        NLOHMANN_JSON_PASTE20, \
+        NLOHMANN_JSON_PASTE19, \
+        NLOHMANN_JSON_PASTE18, \
+        NLOHMANN_JSON_PASTE17, \
+        NLOHMANN_JSON_PASTE16, \
+        NLOHMANN_JSON_PASTE15, \
+        NLOHMANN_JSON_PASTE14, \
+        NLOHMANN_JSON_PASTE13, \
+        NLOHMANN_JSON_PASTE12, \
+        NLOHMANN_JSON_PASTE11, \
+        NLOHMANN_JSON_PASTE10, \
+        NLOHMANN_JSON_PASTE9, \
+        NLOHMANN_JSON_PASTE8, \
+        NLOHMANN_JSON_PASTE7, \
+        NLOHMANN_JSON_PASTE6, \
+        NLOHMANN_JSON_PASTE5, \
+        NLOHMANN_JSON_PASTE4, \
+        NLOHMANN_JSON_PASTE3, \
+        NLOHMANN_JSON_PASTE2, \
+        NLOHMANN_JSON_PASTE1)(__VA_ARGS__))
+#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)
+#define NLOHMANN_JSON_PASTE3(func, v1, v2) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE2(func, v2)
+#define NLOHMANN_JSON_PASTE4(func, v1, v2, v3) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE3(func, v2, v3)
+#define NLOHMANN_JSON_PASTE5(func, v1, v2, v3, v4) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE4(func, v2, v3, v4)
+#define NLOHMANN_JSON_PASTE6(func, v1, v2, v3, v4, v5) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE5(func, v2, v3, v4, v5)
+#define NLOHMANN_JSON_PASTE7(func, v1, v2, v3, v4, v5, v6) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE6(func, v2, v3, v4, v5, v6)
+#define NLOHMANN_JSON_PASTE8(func, v1, v2, v3, v4, v5, v6, v7) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE7(func, v2, v3, v4, v5, v6, v7)
+#define NLOHMANN_JSON_PASTE9(func, v1, v2, v3, v4, v5, v6, v7, v8) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8)
+#define NLOHMANN_JSON_PASTE10(func, v1, v2, v3, v4, v5, v6, v7, v8, v9) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE9(func, v2, v3, v4, v5, v6, v7, v8, v9)
+#define NLOHMANN_JSON_PASTE11(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE10(func, v2, v3, v4, v5, v6, v7, v8, v9, v10)
+#define NLOHMANN_JSON_PASTE12(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE11(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11)
+#define NLOHMANN_JSON_PASTE13(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE12(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12)
+#define NLOHMANN_JSON_PASTE14(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE13(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13)
+#define NLOHMANN_JSON_PASTE15(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE14(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14)
+#define NLOHMANN_JSON_PASTE16(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE15(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15)
+#define NLOHMANN_JSON_PASTE17(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE16(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16)
+#define NLOHMANN_JSON_PASTE18(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE17(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17)
+#define NLOHMANN_JSON_PASTE19(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE18(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18)
+#define NLOHMANN_JSON_PASTE20(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE19(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19)
+#define NLOHMANN_JSON_PASTE21(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE20(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20)
+#define NLOHMANN_JSON_PASTE22(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE21(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21)
+#define NLOHMANN_JSON_PASTE23(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE22(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22)
+#define NLOHMANN_JSON_PASTE24(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE23(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23)
+#define NLOHMANN_JSON_PASTE25(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE24(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24)
+#define NLOHMANN_JSON_PASTE26(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE25(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25)
+#define NLOHMANN_JSON_PASTE27(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE26(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26)
+#define NLOHMANN_JSON_PASTE28(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE27(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27)
+#define NLOHMANN_JSON_PASTE29(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE28(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28)
+#define NLOHMANN_JSON_PASTE30(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE29(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29)
+#define NLOHMANN_JSON_PASTE31(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE30(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30)
+#define NLOHMANN_JSON_PASTE32(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE31(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31)
+#define NLOHMANN_JSON_PASTE33(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE32(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32)
+#define NLOHMANN_JSON_PASTE34(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE33(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33)
+#define NLOHMANN_JSON_PASTE35(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE34(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34)
+#define NLOHMANN_JSON_PASTE36(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE35(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35)
+#define NLOHMANN_JSON_PASTE37(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE36(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36)
+#define NLOHMANN_JSON_PASTE38(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE37(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37)
+#define NLOHMANN_JSON_PASTE39(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE38(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38)
+#define NLOHMANN_JSON_PASTE40(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE39(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39)
+#define NLOHMANN_JSON_PASTE41(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE40(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40)
+#define NLOHMANN_JSON_PASTE42(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE41(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41)
+#define NLOHMANN_JSON_PASTE43(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE42(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42)
+#define NLOHMANN_JSON_PASTE44(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE43(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43)
+#define NLOHMANN_JSON_PASTE45(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE44(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44)
+#define NLOHMANN_JSON_PASTE46(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE45(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45)
+#define NLOHMANN_JSON_PASTE47(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE46(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46)
+#define NLOHMANN_JSON_PASTE48(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE47(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47)
+#define NLOHMANN_JSON_PASTE49(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE48(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48)
+#define NLOHMANN_JSON_PASTE50(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE49(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49)
+#define NLOHMANN_JSON_PASTE51(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE50(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50)
+#define NLOHMANN_JSON_PASTE52(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE51(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51)
+#define NLOHMANN_JSON_PASTE53(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE52(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52)
+#define NLOHMANN_JSON_PASTE54(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE53(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53)
+#define NLOHMANN_JSON_PASTE55(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE54(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54)
+#define NLOHMANN_JSON_PASTE56(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE55(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55)
+#define NLOHMANN_JSON_PASTE57(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE56(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56)
+#define NLOHMANN_JSON_PASTE58(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE57(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57)
+#define NLOHMANN_JSON_PASTE59(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE58(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58)
+#define NLOHMANN_JSON_PASTE60(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE59(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59)
+#define NLOHMANN_JSON_PASTE61(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE60(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60)
+#define NLOHMANN_JSON_PASTE62(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE61(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61)
+#define NLOHMANN_JSON_PASTE63(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE62(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62)
+#define NLOHMANN_JSON_PASTE64(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE63(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63)
+
+#define NLOHMANN_JSON_TO(v1) nlohmann_json_j[#v1] = nlohmann_json_t.v1;
+#define NLOHMANN_JSON_FROM(v1) nlohmann_json_j.at(#v1).get_to(nlohmann_json_t.v1);
+
+/*!
+@brief macro
+@def NLOHMANN_DEFINE_TYPE_INTRUSIVE
+@since version 3.9.0
+*/
+#define NLOHMANN_DEFINE_TYPE_INTRUSIVE(Type, ...)  \
+    friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
+    friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
+
+/*!
+@brief macro
+@def NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE
+@since version 3.9.0
+*/
+#define NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(Type, ...)  \
+    inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
+    inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
+
+
+// inspired from https://stackoverflow.com/a/26745591
+// allows to call any std function as if (e.g. with begin):
+// using std::begin; begin(x);
+//
+// it allows using the detected idiom to retrieve the return type
+// of such an expression
+#define NLOHMANN_CAN_CALL_STD_FUNC_IMPL(std_name)                                 \
+    namespace detail {                                                            \
+    using std::std_name;                                                          \
+    \
+    template<typename... T>                                                       \
+    using result_of_##std_name = decltype(std_name(std::declval<T>()...));        \
+    }                                                                             \
+    \
+    namespace detail2 {                                                           \
+    struct std_name##_tag                                                         \
+    {                                                                             \
+    };                                                                            \
+    \
+    template<typename... T>                                                       \
+    std_name##_tag std_name(T&&...);                                              \
+    \
+    template<typename... T>                                                       \
+    using result_of_##std_name = decltype(std_name(std::declval<T>()...));        \
+    \
+    template<typename... T>                                                       \
+    struct would_call_std_##std_name                                              \
+    {                                                                             \
+        static constexpr auto const value = ::nlohmann::detail::                  \
+                                            is_detected_exact<std_name##_tag, result_of_##std_name, T...>::value; \
+    };                                                                            \
+    } /* namespace detail2 */ \
+    \
+    template<typename... T>                                                       \
+    struct would_call_std_##std_name : detail2::would_call_std_##std_name<T...>   \
+    {                                                                             \
+    }
+
+#ifndef JSON_USE_IMPLICIT_CONVERSIONS
+    #define JSON_USE_IMPLICIT_CONVERSIONS 1
+#endif
+
+#if JSON_USE_IMPLICIT_CONVERSIONS
+    #define JSON_EXPLICIT
+#else
+    #define JSON_EXPLICIT explicit
+#endif
+
+#ifndef JSON_DIAGNOSTICS
+    #define JSON_DIAGNOSTICS 0
+#endif
+
+
+namespace nlohmann
+{
+namespace detail
+{
+
+/*!
+@brief replace all occurrences of a substring by another string
+
+@param[in,out] s  the string to manipulate; changed so that all
+               occurrences of @a f are replaced with @a t
+@param[in]     f  the substring to replace with @a t
+@param[in]     t  the string to replace @a f
+
+@pre The search string @a f must not be empty. **This precondition is
+enforced with an assertion.**
+
+@since version 2.0.0
+*/
+inline void replace_substring(std::string& s, const std::string& f,
+                              const std::string& t)
+{
+    JSON_ASSERT(!f.empty());
+    for (auto pos = s.find(f);                // find first occurrence of f
+            pos != std::string::npos;         // make sure f was found
+            s.replace(pos, f.size(), t),      // replace with t, and
+            pos = s.find(f, pos + t.size()))  // find next occurrence of f
+    {}
+}
+
+/*!
+ * @brief string escaping as described in RFC 6901 (Sect. 4)
+ * @param[in] s string to escape
+ * @return    escaped string
+ *
+ * Note the order of escaping "~" to "~0" and "/" to "~1" is important.
+ */
+inline std::string escape(std::string s)
+{
+    replace_substring(s, "~", "~0");
+    replace_substring(s, "/", "~1");
+    return s;
+}
+
+/*!
+ * @brief string unescaping as described in RFC 6901 (Sect. 4)
+ * @param[in] s string to unescape
+ * @return    unescaped string
+ *
+ * Note the order of escaping "~1" to "/" and "~0" to "~" is important.
+ */
+static void unescape(std::string& s)
+{
+    replace_substring(s, "~1", "/");
+    replace_substring(s, "~0", "~");
+}
+
+} // namespace detail
+} // namespace nlohmann
+
+// #include <nlohmann/detail/input/position_t.hpp>
+
+
+#include <cstddef> // size_t
+
+namespace nlohmann
+{
+namespace detail
+{
+/// struct to capture the start position of the current token
+struct position_t
+{
+    /// the total number of characters read
+    std::size_t chars_read_total = 0;
+    /// the number of characters read in the current line
+    std::size_t chars_read_current_line = 0;
+    /// the number of lines read
+    std::size_t lines_read = 0;
+
+    /// conversion to size_t to preserve SAX interface
+    constexpr operator size_t() const
+    {
+        return chars_read_total;
+    }
+};
+
+} // namespace detail
+} // namespace nlohmann
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+////////////////
+// exceptions //
+////////////////
+
+/*!
+@brief general exception of the @ref basic_json class
+
+This class is an extension of `std::exception` objects with a member @a id for
+exception ids. It is used as the base class for all exceptions thrown by the
+@ref basic_json class. This class can hence be used as "wildcard" to catch
+exceptions.
+
+Subclasses:
+- @ref parse_error for exceptions indicating a parse error
+- @ref invalid_iterator for exceptions indicating errors with iterators
+- @ref type_error for exceptions indicating executing a member function with
+                  a wrong type
+- @ref out_of_range for exceptions indicating access out of the defined range
+- @ref other_error for exceptions indicating other library errors
+
+@internal
+@note To have nothrow-copy-constructible exceptions, we internally use
+      `std::runtime_error` which can cope with arbitrary-length error messages.
+      Intermediate strings are built with static functions and then passed to
+      the actual constructor.
+@endinternal
+
+@liveexample{The following code shows how arbitrary library exceptions can be
+caught.,exception}
+
+@since version 3.0.0
+*/
+class exception : public std::exception
+{
+  public:
+    /// returns the explanatory string
+    const char* what() const noexcept override
+    {
+        return m.what();
+    }
+
+    /// the id of the exception
+    const int id; // NOLINT(cppcoreguidelines-non-private-member-variables-in-classes)
+
+  protected:
+    JSON_HEDLEY_NON_NULL(3)
+    exception(int id_, const char* what_arg) : id(id_), m(what_arg) {}
+
+    static std::string name(const std::string& ename, int id_)
+    {
+        return "[json.exception." + ename + "." + std::to_string(id_) + "] ";
+    }
+
+    template<typename BasicJsonType>
+    static std::string diagnostics(const BasicJsonType& leaf_element)
+    {
+#if JSON_DIAGNOSTICS
+        std::vector<std::string> tokens;
+        for (const auto* current = &leaf_element; current->m_parent != nullptr; current = current->m_parent)
+        {
+            switch (current->m_parent->type())
+            {
+                case value_t::array:
+                {
+                    for (std::size_t i = 0; i < current->m_parent->m_value.array->size(); ++i)
+                    {
+                        if (&current->m_parent->m_value.array->operator[](i) == current)
+                        {
+                            tokens.emplace_back(std::to_string(i));
+                            break;
+                        }
+                    }
+                    break;
+                }
+
+                case value_t::object:
+                {
+                    for (const auto& element : *current->m_parent->m_value.object)
+                    {
+                        if (&element.second == current)
+                        {
+                            tokens.emplace_back(element.first.c_str());
+                            break;
+                        }
+                    }
+                    break;
+                }
+
+                case value_t::null: // LCOV_EXCL_LINE
+                case value_t::string: // LCOV_EXCL_LINE
+                case value_t::boolean: // LCOV_EXCL_LINE
+                case value_t::number_integer: // LCOV_EXCL_LINE
+                case value_t::number_unsigned: // LCOV_EXCL_LINE
+                case value_t::number_float: // LCOV_EXCL_LINE
+                case value_t::binary: // LCOV_EXCL_LINE
+                case value_t::discarded: // LCOV_EXCL_LINE
+                default:   // LCOV_EXCL_LINE
+                    break; // LCOV_EXCL_LINE
+            }
+        }
+
+        if (tokens.empty())
+        {
+            return "";
+        }
+
+        return "(" + std::accumulate(tokens.rbegin(), tokens.rend(), std::string{},
+                                     [](const std::string & a, const std::string & b)
+        {
+            return a + "/" + detail::escape(b);
+        }) + ") ";
+#else
+        static_cast<void>(leaf_element);
+        return "";
+#endif
+    }
+
+  private:
+    /// an exception object as storage for error messages
+    std::runtime_error m;
+};
+
+/*!
+@brief exception indicating a parse error
+
+This exception is thrown by the library when a parse error occurs. Parse errors
+can occur during the deserialization of JSON text, CBOR, MessagePack, as well
+as when using JSON Patch.
+
+Member @a byte holds the byte index of the last read character in the input
+file.
+
+Exceptions have ids 1xx.
+
+name / id                      | example message | description
+------------------------------ | --------------- | -------------------------
+json.exception.parse_error.101 | parse error at 2: unexpected end of input; expected string literal | This error indicates a syntax error while deserializing a JSON text. The error message describes that an unexpected token (character) was encountered, and the member @a byte indicates the error position.
+json.exception.parse_error.102 | parse error at 14: missing or wrong low surrogate | JSON uses the `\uxxxx` format to describe Unicode characters. Code points above above 0xFFFF are split into two `\uxxxx` entries ("surrogate pairs"). This error indicates that the surrogate pair is incomplete or contains an invalid code point.
+json.exception.parse_error.103 | parse error: code points above 0x10FFFF are invalid | Unicode supports code points up to 0x10FFFF. Code points above 0x10FFFF are invalid.
+json.exception.parse_error.104 | parse error: JSON patch must be an array of objects | [RFC 6902](https://tools.ietf.org/html/rfc6902) requires a JSON Patch document to be a JSON document that represents an array of objects.
+json.exception.parse_error.105 | parse error: operation must have string member 'op' | An operation of a JSON Patch document must contain exactly one "op" member, whose value indicates the operation to perform. Its value must be one of "add", "remove", "replace", "move", "copy", or "test"; other values are errors.
+json.exception.parse_error.106 | parse error: array index '01' must not begin with '0' | An array index in a JSON Pointer ([RFC 6901](https://tools.ietf.org/html/rfc6901)) may be `0` or any number without a leading `0`.
+json.exception.parse_error.107 | parse error: JSON pointer must be empty or begin with '/' - was: 'foo' | A JSON Pointer must be a Unicode string containing a sequence of zero or more reference tokens, each prefixed by a `/` character.
+json.exception.parse_error.108 | parse error: escape character '~' must be followed with '0' or '1' | In a JSON Pointer, only `~0` and `~1` are valid escape sequences.
+json.exception.parse_error.109 | parse error: array index 'one' is not a number | A JSON Pointer array index must be a number.
+json.exception.parse_error.110 | parse error at 1: cannot read 2 bytes from vector | When parsing CBOR or MessagePack, the byte vector ends before the complete value has been read.
+json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xF8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read.
+json.exception.parse_error.113 | parse error at 2: expected a CBOR string; last byte: 0x98 | While parsing a map key, a value that is not a string has been read.
+json.exception.parse_error.114 | parse error: Unsupported BSON record type 0x0F | The parsing of the corresponding BSON record type is not implemented (yet).
+json.exception.parse_error.115 | parse error at byte 5: syntax error while parsing UBJSON high-precision number: invalid number text: 1A | A UBJSON high-precision number could not be parsed.
+
+@note For an input with n bytes, 1 is the index of the first character and n+1
+      is the index of the terminating null byte or the end of file. This also
+      holds true when reading a byte vector (CBOR or MessagePack).
+
+@liveexample{The following code shows how a `parse_error` exception can be
+caught.,parse_error}
+
+@sa - @ref exception for the base class of the library exceptions
+@sa - @ref invalid_iterator for exceptions indicating errors with iterators
+@sa - @ref type_error for exceptions indicating executing a member function with
+                    a wrong type
+@sa - @ref out_of_range for exceptions indicating access out of the defined range
+@sa - @ref other_error for exceptions indicating other library errors
+
+@since version 3.0.0
+*/
+class parse_error : public exception
+{
+  public:
+    /*!
+    @brief create a parse error exception
+    @param[in] id_       the id of the exception
+    @param[in] pos       the position where the error occurred (or with
+                         chars_read_total=0 if the position cannot be
+                         determined)
+    @param[in] what_arg  the explanatory string
+    @return parse_error object
+    */
+    template<typename BasicJsonType>
+    static parse_error create(int id_, const position_t& pos, const std::string& what_arg, const BasicJsonType& context)
+    {
+        std::string w = exception::name("parse_error", id_) + "parse error" +
+                        position_string(pos) + ": " + exception::diagnostics(context) + what_arg;
+        return parse_error(id_, pos.chars_read_total, w.c_str());
+    }
+
+    template<typename BasicJsonType>
+    static parse_error create(int id_, std::size_t byte_, const std::string& what_arg, const BasicJsonType& context)
+    {
+        std::string w = exception::name("parse_error", id_) + "parse error" +
+                        (byte_ != 0 ? (" at byte " + std::to_string(byte_)) : "") +
+                        ": " + exception::diagnostics(context) + what_arg;
+        return parse_error(id_, byte_, w.c_str());
+    }
+
+    /*!
+    @brief byte index of the parse error
+
+    The byte index of the last read character in the input file.
+
+    @note For an input with n bytes, 1 is the index of the first character and
+          n+1 is the index of the terminating null byte or the end of file.
+          This also holds true when reading a byte vector (CBOR or MessagePack).
+    */
+    const std::size_t byte;
+
+  private:
+    parse_error(int id_, std::size_t byte_, const char* what_arg)
+        : exception(id_, what_arg), byte(byte_) {}
+
+    static std::string position_string(const position_t& pos)
+    {
+        return " at line " + std::to_string(pos.lines_read + 1) +
+               ", column " + std::to_string(pos.chars_read_current_line);
+    }
+};
+
+/*!
+@brief exception indicating errors with iterators
+
+This exception is thrown if iterators passed to a library function do not match
+the expected semantics.
+
+Exceptions have ids 2xx.
+
+name / id                           | example message | description
+----------------------------------- | --------------- | -------------------------
+json.exception.invalid_iterator.201 | iterators are not compatible | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid.
+json.exception.invalid_iterator.202 | iterator does not fit current value | In an erase or insert function, the passed iterator @a pos does not belong to the JSON value for which the function was called. It hence does not define a valid position for the deletion/insertion.
+json.exception.invalid_iterator.203 | iterators do not fit current value | Either iterator passed to function @ref erase(IteratorType first, IteratorType last) does not belong to the JSON value from which values shall be erased. It hence does not define a valid range to delete values from.
+json.exception.invalid_iterator.204 | iterators out of range | When an iterator range for a primitive type (number, boolean, or string) is passed to a constructor or an erase function, this range has to be exactly (@ref begin(), @ref end()), because this is the only way the single stored value is expressed. All other ranges are invalid.
+json.exception.invalid_iterator.205 | iterator out of range | When an iterator for a primitive type (number, boolean, or string) is passed to an erase function, the iterator has to be the @ref begin() iterator, because it is the only way to address the stored value. All other iterators are invalid.
+json.exception.invalid_iterator.206 | cannot construct with iterators from null | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) belong to a JSON null value and hence to not define a valid range.
+json.exception.invalid_iterator.207 | cannot use key() for non-object iterators | The key() member function can only be used on iterators belonging to a JSON object, because other types do not have a concept of a key.
+json.exception.invalid_iterator.208 | cannot use operator[] for object iterators | The operator[] to specify a concrete offset cannot be used on iterators belonging to a JSON object, because JSON objects are unordered.
+json.exception.invalid_iterator.209 | cannot use offsets with object iterators | The offset operators (+, -, +=, -=) cannot be used on iterators belonging to a JSON object, because JSON objects are unordered.
+json.exception.invalid_iterator.210 | iterators do not fit | The iterator range passed to the insert function are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid.
+json.exception.invalid_iterator.211 | passed iterators may not belong to container | The iterator range passed to the insert function must not be a subrange of the container to insert to.
+json.exception.invalid_iterator.212 | cannot compare iterators of different containers | When two iterators are compared, they must belong to the same container.
+json.exception.invalid_iterator.213 | cannot compare order of object iterators | The order of object iterators cannot be compared, because JSON objects are unordered.
+json.exception.invalid_iterator.214 | cannot get value | Cannot get value for iterator: Either the iterator belongs to a null value or it is an iterator to a primitive type (number, boolean, or string), but the iterator is different to @ref begin().
+
+@liveexample{The following code shows how an `invalid_iterator` exception can be
+caught.,invalid_iterator}
+
+@sa - @ref exception for the base class of the library exceptions
+@sa - @ref parse_error for exceptions indicating a parse error
+@sa - @ref type_error for exceptions indicating executing a member function with
+                    a wrong type
+@sa - @ref out_of_range for exceptions indicating access out of the defined range
+@sa - @ref other_error for exceptions indicating other library errors
+
+@since version 3.0.0
+*/
+class invalid_iterator : public exception
+{
+  public:
+    template<typename BasicJsonType>
+    static invalid_iterator create(int id_, const std::string& what_arg, const BasicJsonType& context)
+    {
+        std::string w = exception::name("invalid_iterator", id_) + exception::diagnostics(context) + what_arg;
+        return invalid_iterator(id_, w.c_str());
+    }
+
+  private:
+    JSON_HEDLEY_NON_NULL(3)
+    invalid_iterator(int id_, const char* what_arg)
+        : exception(id_, what_arg) {}
+};
+
+/*!
+@brief exception indicating executing a member function with a wrong type
+
+This exception is thrown in case of a type error; that is, a library function is
+executed on a JSON value whose type does not match the expected semantics.
+
+Exceptions have ids 3xx.
+
+name / id                     | example message | description
+----------------------------- | --------------- | -------------------------
+json.exception.type_error.301 | cannot create object from initializer list | To create an object from an initializer list, the initializer list must consist only of a list of pairs whose first element is a string. When this constraint is violated, an array is created instead.
+json.exception.type_error.302 | type must be object, but is array | During implicit or explicit value conversion, the JSON type must be compatible to the target type. For instance, a JSON string can only be converted into string types, but not into numbers or boolean types.
+json.exception.type_error.303 | incompatible ReferenceType for get_ref, actual type is object | To retrieve a reference to a value stored in a @ref basic_json object with @ref get_ref, the type of the reference must match the value type. For instance, for a JSON array, the @a ReferenceType must be @ref array_t &.
+json.exception.type_error.304 | cannot use at() with string | The @ref at() member functions can only be executed for certain JSON types.
+json.exception.type_error.305 | cannot use operator[] with string | The @ref operator[] member functions can only be executed for certain JSON types.
+json.exception.type_error.306 | cannot use value() with string | The @ref value() member functions can only be executed for certain JSON types.
+json.exception.type_error.307 | cannot use erase() with string | The @ref erase() member functions can only be executed for certain JSON types.
+json.exception.type_error.308 | cannot use push_back() with string | The @ref push_back() and @ref operator+= member functions can only be executed for certain JSON types.
+json.exception.type_error.309 | cannot use insert() with | The @ref insert() member functions can only be executed for certain JSON types.
+json.exception.type_error.310 | cannot use swap() with number | The @ref swap() member functions can only be executed for certain JSON types.
+json.exception.type_error.311 | cannot use emplace_back() with string | The @ref emplace_back() member function can only be executed for certain JSON types.
+json.exception.type_error.312 | cannot use update() with string | The @ref update() member functions can only be executed for certain JSON types.
+json.exception.type_error.313 | invalid value to unflatten | The @ref unflatten function converts an object whose keys are JSON Pointers back into an arbitrary nested JSON value. The JSON Pointers must not overlap, because then the resulting value would not be well defined.
+json.exception.type_error.314 | only objects can be unflattened | The @ref unflatten function only works for an object whose keys are JSON Pointers.
+json.exception.type_error.315 | values in object must be primitive | The @ref unflatten function only works for an object whose keys are JSON Pointers and whose values are primitive.
+json.exception.type_error.316 | invalid UTF-8 byte at index 10: 0x7E | The @ref dump function only works with UTF-8 encoded strings; that is, if you assign a `std::string` to a JSON value, make sure it is UTF-8 encoded. |
+json.exception.type_error.317 | JSON value cannot be serialized to requested format | The dynamic type of the object cannot be represented in the requested serialization format (e.g. a raw `true` or `null` JSON object cannot be serialized to BSON) |
+
+@liveexample{The following code shows how a `type_error` exception can be
+caught.,type_error}
+
+@sa - @ref exception for the base class of the library exceptions
+@sa - @ref parse_error for exceptions indicating a parse error
+@sa - @ref invalid_iterator for exceptions indicating errors with iterators
+@sa - @ref out_of_range for exceptions indicating access out of the defined range
+@sa - @ref other_error for exceptions indicating other library errors
+
+@since version 3.0.0
+*/
+class type_error : public exception
+{
+  public:
+    template<typename BasicJsonType>
+    static type_error create(int id_, const std::string& what_arg, const BasicJsonType& context)
+    {
+        std::string w = exception::name("type_error", id_) + exception::diagnostics(context) + what_arg;
+        return type_error(id_, w.c_str());
+    }
+
+  private:
+    JSON_HEDLEY_NON_NULL(3)
+    type_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
+};
+
+/*!
+@brief exception indicating access out of the defined range
+
+This exception is thrown in case a library function is called on an input
+parameter that exceeds the expected range, for instance in case of array
+indices or nonexisting object keys.
+
+Exceptions have ids 4xx.
+
+name / id                       | example message | description
+------------------------------- | --------------- | -------------------------
+json.exception.out_of_range.401 | array index 3 is out of range | The provided array index @a i is larger than @a size-1.
+json.exception.out_of_range.402 | array index '-' (3) is out of range | The special array index `-` in a JSON Pointer never describes a valid element of the array, but the index past the end. That is, it can only be used to add elements at this position, but not to read it.
+json.exception.out_of_range.403 | key 'foo' not found | The provided key was not found in the JSON object.
+json.exception.out_of_range.404 | unresolved reference token 'foo' | A reference token in a JSON Pointer could not be resolved.
+json.exception.out_of_range.405 | JSON pointer has no parent | The JSON Patch operations 'remove' and 'add' can not be applied to the root element of the JSON value.
+json.exception.out_of_range.406 | number overflow parsing '10E1000' | A parsed number could not be stored as without changing it to NaN or INF.
+json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON and BSON only support integer numbers up to 9223372036854775807. (until version 3.8.0) |
+json.exception.out_of_range.408 | excessive array size: 8658170730974374167 | The size (following `#`) of an UBJSON array or object exceeds the maximal capacity. |
+json.exception.out_of_range.409 | BSON key cannot contain code point U+0000 (at byte 2) | Key identifiers to be serialized to BSON cannot contain code point U+0000, since the key is stored as zero-terminated c-string |
+
+@liveexample{The following code shows how an `out_of_range` exception can be
+caught.,out_of_range}
+
+@sa - @ref exception for the base class of the library exceptions
+@sa - @ref parse_error for exceptions indicating a parse error
+@sa - @ref invalid_iterator for exceptions indicating errors with iterators
+@sa - @ref type_error for exceptions indicating executing a member function with
+                    a wrong type
+@sa - @ref other_error for exceptions indicating other library errors
+
+@since version 3.0.0
+*/
+class out_of_range : public exception
+{
+  public:
+    template<typename BasicJsonType>
+    static out_of_range create(int id_, const std::string& what_arg, const BasicJsonType& context)
+    {
+        std::string w = exception::name("out_of_range", id_) + exception::diagnostics(context) + what_arg;
+        return out_of_range(id_, w.c_str());
+    }
+
+  private:
+    JSON_HEDLEY_NON_NULL(3)
+    out_of_range(int id_, const char* what_arg) : exception(id_, what_arg) {}
+};
+
+/*!
+@brief exception indicating other library errors
+
+This exception is thrown in case of errors that cannot be classified with the
+other exception types.
+
+Exceptions have ids 5xx.
+
+name / id                      | example message | description
+------------------------------ | --------------- | -------------------------
+json.exception.other_error.501 | unsuccessful: {"op":"test","path":"/baz", "value":"bar"} | A JSON Patch operation 'test' failed. The unsuccessful operation is also printed.
+
+@sa - @ref exception for the base class of the library exceptions
+@sa - @ref parse_error for exceptions indicating a parse error
+@sa - @ref invalid_iterator for exceptions indicating errors with iterators
+@sa - @ref type_error for exceptions indicating executing a member function with
+                    a wrong type
+@sa - @ref out_of_range for exceptions indicating access out of the defined range
+
+@liveexample{The following code shows how an `other_error` exception can be
+caught.,other_error}
+
+@since version 3.0.0
+*/
+class other_error : public exception
+{
+  public:
+    template<typename BasicJsonType>
+    static other_error create(int id_, const std::string& what_arg, const BasicJsonType& context)
+    {
+        std::string w = exception::name("other_error", id_) + exception::diagnostics(context) + what_arg;
+        return other_error(id_, w.c_str());
+    }
+
+  private:
+    JSON_HEDLEY_NON_NULL(3)
+    other_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+
+#include <cstddef> // size_t
+#include <type_traits> // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type
+#include <utility> // index_sequence, make_index_sequence, index_sequence_for
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+
+template<typename T>
+using uncvref_t = typename std::remove_cv<typename std::remove_reference<T>::type>::type;
+
+#ifdef JSON_HAS_CPP_14
+
+// the following utilities are natively available in C++14
+using std::enable_if_t;
+using std::index_sequence;
+using std::make_index_sequence;
+using std::index_sequence_for;
+
+#else
+
+// alias templates to reduce boilerplate
+template<bool B, typename T = void>
+using enable_if_t = typename std::enable_if<B, T>::type;
+
+// The following code is taken from https://github.com/abseil/abseil-cpp/blob/10cb35e459f5ecca5b2ff107635da0bfa41011b4/absl/utility/utility.h
+// which is part of Google Abseil (https://github.com/abseil/abseil-cpp), licensed under the Apache License 2.0.
+
+//// START OF CODE FROM GOOGLE ABSEIL
+
+// integer_sequence
+//
+// Class template representing a compile-time integer sequence. An instantiation
+// of `integer_sequence<T, Ints...>` has a sequence of integers encoded in its
+// type through its template arguments (which is a common need when
+// working with C++11 variadic templates). `absl::integer_sequence` is designed
+// to be a drop-in replacement for C++14's `std::integer_sequence`.
+//
+// Example:
+//
+//   template< class T, T... Ints >
+//   void user_function(integer_sequence<T, Ints...>);
+//
+//   int main()
+//   {
+//     // user_function's `T` will be deduced to `int` and `Ints...`
+//     // will be deduced to `0, 1, 2, 3, 4`.
+//     user_function(make_integer_sequence<int, 5>());
+//   }
+template <typename T, T... Ints>
+struct integer_sequence
+{
+    using value_type = T;
+    static constexpr std::size_t size() noexcept
+    {
+        return sizeof...(Ints);
+    }
+};
+
+// index_sequence
+//
+// A helper template for an `integer_sequence` of `size_t`,
+// `absl::index_sequence` is designed to be a drop-in replacement for C++14's
+// `std::index_sequence`.
+template <size_t... Ints>
+using index_sequence = integer_sequence<size_t, Ints...>;
+
+namespace utility_internal
+{
+
+template <typename Seq, size_t SeqSize, size_t Rem>
+struct Extend;
+
+// Note that SeqSize == sizeof...(Ints). It's passed explicitly for efficiency.
+template <typename T, T... Ints, size_t SeqSize>
+struct Extend<integer_sequence<T, Ints...>, SeqSize, 0>
+{
+    using type = integer_sequence < T, Ints..., (Ints + SeqSize)... >;
+};
+
+template <typename T, T... Ints, size_t SeqSize>
+struct Extend<integer_sequence<T, Ints...>, SeqSize, 1>
+{
+    using type = integer_sequence < T, Ints..., (Ints + SeqSize)..., 2 * SeqSize >;
+};
+
+// Recursion helper for 'make_integer_sequence<T, N>'.
+// 'Gen<T, N>::type' is an alias for 'integer_sequence<T, 0, 1, ... N-1>'.
+template <typename T, size_t N>
+struct Gen
+{
+    using type =
+        typename Extend < typename Gen < T, N / 2 >::type, N / 2, N % 2 >::type;
+};
+
+template <typename T>
+struct Gen<T, 0>
+{
+    using type = integer_sequence<T>;
+};
+
+}  // namespace utility_internal
+
+// Compile-time sequences of integers
+
+// make_integer_sequence
+//
+// This template alias is equivalent to
+// `integer_sequence<int, 0, 1, ..., N-1>`, and is designed to be a drop-in
+// replacement for C++14's `std::make_integer_sequence`.
+template <typename T, T N>
+using make_integer_sequence = typename utility_internal::Gen<T, N>::type;
+
+// make_index_sequence
+//
+// This template alias is equivalent to `index_sequence<0, 1, ..., N-1>`,
+// and is designed to be a drop-in replacement for C++14's
+// `std::make_index_sequence`.
+template <size_t N>
+using make_index_sequence = make_integer_sequence<size_t, N>;
+
+// index_sequence_for
+//
+// Converts a typename pack into an index sequence of the same length, and
+// is designed to be a drop-in replacement for C++14's
+// `std::index_sequence_for()`
+template <typename... Ts>
+using index_sequence_for = make_index_sequence<sizeof...(Ts)>;
+
+//// END OF CODE FROM GOOGLE ABSEIL
+
+#endif
+
+// dispatch utility (taken from ranges-v3)
+template<unsigned N> struct priority_tag : priority_tag < N - 1 > {};
+template<> struct priority_tag<0> {};
+
+// taken from ranges-v3
+template<typename T>
+struct static_const
+{
+    static constexpr T value{};
+};
+
+template<typename T>
+constexpr T static_const<T>::value;
+
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/meta/identity_tag.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+// dispatching helper struct
+template <class T> struct identity_tag {};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+
+#include <limits> // numeric_limits
+#include <type_traits> // false_type, is_constructible, is_integral, is_same, true_type
+#include <utility> // declval
+#include <tuple> // tuple
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+// #include <nlohmann/detail/iterators/iterator_traits.hpp>
+
+
+#include <iterator> // random_access_iterator_tag
+
+// #include <nlohmann/detail/meta/void_t.hpp>
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+template<typename It, typename = void>
+struct iterator_types {};
+
+template<typename It>
+struct iterator_types <
+    It,
+    void_t<typename It::difference_type, typename It::value_type, typename It::pointer,
+    typename It::reference, typename It::iterator_category >>
+{
+    using difference_type = typename It::difference_type;
+    using value_type = typename It::value_type;
+    using pointer = typename It::pointer;
+    using reference = typename It::reference;
+    using iterator_category = typename It::iterator_category;
+};
+
+// This is required as some compilers implement std::iterator_traits in a way that
+// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341.
+template<typename T, typename = void>
+struct iterator_traits
+{
+};
+
+template<typename T>
+struct iterator_traits < T, enable_if_t < !std::is_pointer<T>::value >>
+            : iterator_types<T>
+{
+};
+
+template<typename T>
+struct iterator_traits<T*, enable_if_t<std::is_object<T>::value>>
+{
+    using iterator_category = std::random_access_iterator_tag;
+    using value_type = T;
+    using difference_type = ptrdiff_t;
+    using pointer = T*;
+    using reference = T&;
+};
+} // namespace detail
+} // namespace nlohmann
+
+// #include <nlohmann/detail/meta/call_std/begin.hpp>
+
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+NLOHMANN_CAN_CALL_STD_FUNC_IMPL(begin);
+} // namespace nlohmann
+
+// #include <nlohmann/detail/meta/call_std/end.hpp>
+
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+NLOHMANN_CAN_CALL_STD_FUNC_IMPL(end);
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+// #include <nlohmann/detail/meta/detected.hpp>
+
+// #include <nlohmann/json_fwd.hpp>
+#ifndef INCLUDE_NLOHMANN_JSON_FWD_HPP_
+#define INCLUDE_NLOHMANN_JSON_FWD_HPP_
+
+#include <cstdint> // int64_t, uint64_t
+#include <map> // map
+#include <memory> // allocator
+#include <string> // string
+#include <vector> // vector
+
+/*!
+@brief namespace for Niels Lohmann
+@see https://github.com/nlohmann
+@since version 1.0.0
+*/
+namespace nlohmann
+{
+/*!
+@brief default JSONSerializer template argument
+
+This serializer ignores the template arguments and uses ADL
+([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl))
+for serialization.
+*/
+template<typename T = void, typename SFINAE = void>
+struct adl_serializer;
+
+template<template<typename U, typename V, typename... Args> class ObjectType =
+         std::map,
+         template<typename U, typename... Args> class ArrayType = std::vector,
+         class StringType = std::string, class BooleanType = bool,
+         class NumberIntegerType = std::int64_t,
+         class NumberUnsignedType = std::uint64_t,
+         class NumberFloatType = double,
+         template<typename U> class AllocatorType = std::allocator,
+         template<typename T, typename SFINAE = void> class JSONSerializer =
+         adl_serializer,
+         class BinaryType = std::vector<std::uint8_t>>
+class basic_json;
+
+/*!
+@brief JSON Pointer
+
+A JSON pointer defines a string syntax for identifying a specific value
+within a JSON document. It can be used with functions `at` and
+`operator[]`. Furthermore, JSON pointers are the base for JSON patches.
+
+@sa [RFC 6901](https://tools.ietf.org/html/rfc6901)
+
+@since version 2.0.0
+*/
+template<typename BasicJsonType>
+class json_pointer;
+
+/*!
+@brief default JSON class
+
+This type is the default specialization of the @ref basic_json class which
+uses the standard template types.
+
+@since version 1.0.0
+*/
+using json = basic_json<>;
+
+template<class Key, class T, class IgnoredLess, class Allocator>
+struct ordered_map;
+
+/*!
+@brief ordered JSON class
+
+This type preserves the insertion order of object keys.
+
+@since version 3.9.0
+*/
+using ordered_json = basic_json<nlohmann::ordered_map>;
+
+}  // namespace nlohmann
+
+#endif  // INCLUDE_NLOHMANN_JSON_FWD_HPP_
+
+
+namespace nlohmann
+{
+/*!
+@brief detail namespace with internal helper functions
+
+This namespace collects functions that should not be exposed,
+implementations of some @ref basic_json methods, and meta-programming helpers.
+
+@since version 2.1.0
+*/
+namespace detail
+{
+/////////////
+// helpers //
+/////////////
+
+// Note to maintainers:
+//
+// Every trait in this file expects a non CV-qualified type.
+// The only exceptions are in the 'aliases for detected' section
+// (i.e. those of the form: decltype(T::member_function(std::declval<T>())))
+//
+// In this case, T has to be properly CV-qualified to constraint the function arguments
+// (e.g. to_json(BasicJsonType&, const T&))
+
+template<typename> struct is_basic_json : std::false_type {};
+
+NLOHMANN_BASIC_JSON_TPL_DECLARATION
+struct is_basic_json<NLOHMANN_BASIC_JSON_TPL> : std::true_type {};
+
+//////////////////////
+// json_ref helpers //
+//////////////////////
+
+template<typename>
+class json_ref;
+
+template<typename>
+struct is_json_ref : std::false_type {};
+
+template<typename T>
+struct is_json_ref<json_ref<T>> : std::true_type {};
+
+//////////////////////////
+// aliases for detected //
+//////////////////////////
+
+template<typename T>
+using mapped_type_t = typename T::mapped_type;
+
+template<typename T>
+using key_type_t = typename T::key_type;
+
+template<typename T>
+using value_type_t = typename T::value_type;
+
+template<typename T>
+using difference_type_t = typename T::difference_type;
+
+template<typename T>
+using pointer_t = typename T::pointer;
+
+template<typename T>
+using reference_t = typename T::reference;
+
+template<typename T>
+using iterator_category_t = typename T::iterator_category;
+
+template<typename T, typename... Args>
+using to_json_function = decltype(T::to_json(std::declval<Args>()...));
+
+template<typename T, typename... Args>
+using from_json_function = decltype(T::from_json(std::declval<Args>()...));
+
+template<typename T, typename U>
+using get_template_function = decltype(std::declval<T>().template get<U>());
+
+// trait checking if JSONSerializer<T>::from_json(json const&, udt&) exists
+template<typename BasicJsonType, typename T, typename = void>
+struct has_from_json : std::false_type {};
+
+// trait checking if j.get<T> is valid
+// use this trait instead of std::is_constructible or std::is_convertible,
+// both rely on, or make use of implicit conversions, and thus fail when T
+// has several constructors/operator= (see https://github.com/nlohmann/json/issues/958)
+template <typename BasicJsonType, typename T>
+struct is_getable
+{
+    static constexpr bool value = is_detected<get_template_function, const BasicJsonType&, T>::value;
+};
+
+template<typename BasicJsonType, typename T>
+struct has_from_json < BasicJsonType, T, enable_if_t < !is_basic_json<T>::value >>
+{
+    using serializer = typename BasicJsonType::template json_serializer<T, void>;
+
+    static constexpr bool value =
+        is_detected_exact<void, from_json_function, serializer,
+        const BasicJsonType&, T&>::value;
+};
+
+// This trait checks if JSONSerializer<T>::from_json(json const&) exists
+// this overload is used for non-default-constructible user-defined-types
+template<typename BasicJsonType, typename T, typename = void>
+struct has_non_default_from_json : std::false_type {};
+
+template<typename BasicJsonType, typename T>
+struct has_non_default_from_json < BasicJsonType, T, enable_if_t < !is_basic_json<T>::value >>
+{
+    using serializer = typename BasicJsonType::template json_serializer<T, void>;
+
+    static constexpr bool value =
+        is_detected_exact<T, from_json_function, serializer,
+        const BasicJsonType&>::value;
+};
+
+// This trait checks if BasicJsonType::json_serializer<T>::to_json exists
+// Do not evaluate the trait when T is a basic_json type, to avoid template instantiation infinite recursion.
+template<typename BasicJsonType, typename T, typename = void>
+struct has_to_json : std::false_type {};
+
+template<typename BasicJsonType, typename T>
+struct has_to_json < BasicJsonType, T, enable_if_t < !is_basic_json<T>::value >>
+{
+    using serializer = typename BasicJsonType::template json_serializer<T, void>;
+
+    static constexpr bool value =
+        is_detected_exact<void, to_json_function, serializer, BasicJsonType&,
+        T>::value;
+};
+
+
+///////////////////
+// is_ functions //
+///////////////////
+
+// https://en.cppreference.com/w/cpp/types/conjunction
+template<class...> struct conjunction : std::true_type { };
+template<class B1> struct conjunction<B1> : B1 { };
+template<class B1, class... Bn>
+struct conjunction<B1, Bn...>
+: std::conditional<bool(B1::value), conjunction<Bn...>, B1>::type {};
+
+// https://en.cppreference.com/w/cpp/types/negation
+template<class B> struct negation : std::integral_constant < bool, !B::value > { };
+
+// Reimplementation of is_constructible and is_default_constructible, due to them being broken for
+// std::pair and std::tuple until LWG 2367 fix (see https://cplusplus.github.io/LWG/lwg-defects.html#2367).
+// This causes compile errors in e.g. clang 3.5 or gcc 4.9.
+template <typename T>
+struct is_default_constructible : std::is_default_constructible<T> {};
+
+template <typename T1, typename T2>
+struct is_default_constructible<std::pair<T1, T2>>
+            : conjunction<is_default_constructible<T1>, is_default_constructible<T2>> {};
+
+template <typename T1, typename T2>
+struct is_default_constructible<const std::pair<T1, T2>>
+            : conjunction<is_default_constructible<T1>, is_default_constructible<T2>> {};
+
+template <typename... Ts>
+struct is_default_constructible<std::tuple<Ts...>>
+            : conjunction<is_default_constructible<Ts>...> {};
+
+template <typename... Ts>
+struct is_default_constructible<const std::tuple<Ts...>>
+            : conjunction<is_default_constructible<Ts>...> {};
+
+
+template <typename T, typename... Args>
+struct is_constructible : std::is_constructible<T, Args...> {};
+
+template <typename T1, typename T2>
+struct is_constructible<std::pair<T1, T2>> : is_default_constructible<std::pair<T1, T2>> {};
+
+template <typename T1, typename T2>
+struct is_constructible<const std::pair<T1, T2>> : is_default_constructible<const std::pair<T1, T2>> {};
+
+template <typename... Ts>
+struct is_constructible<std::tuple<Ts...>> : is_default_constructible<std::tuple<Ts...>> {};
+
+template <typename... Ts>
+struct is_constructible<const std::tuple<Ts...>> : is_default_constructible<const std::tuple<Ts...>> {};
+
+
+template<typename T, typename = void>
+struct is_iterator_traits : std::false_type {};
+
+template<typename T>
+struct is_iterator_traits<iterator_traits<T>>
+{
+  private:
+    using traits = iterator_traits<T>;
+
+  public:
+    static constexpr auto value =
+        is_detected<value_type_t, traits>::value &&
+        is_detected<difference_type_t, traits>::value &&
+        is_detected<pointer_t, traits>::value &&
+        is_detected<iterator_category_t, traits>::value &&
+        is_detected<reference_t, traits>::value;
+};
+
+template<typename T>
+struct is_range
+{
+  private:
+    using t_ref = typename std::add_lvalue_reference<T>::type;
+
+    using iterator = detected_t<result_of_begin, t_ref>;
+    using sentinel = detected_t<result_of_end, t_ref>;
+
+    // to be 100% correct, it should use https://en.cppreference.com/w/cpp/iterator/input_or_output_iterator
+    // and https://en.cppreference.com/w/cpp/iterator/sentinel_for
+    // but reimplementing these would be too much work, as a lot of other concepts are used underneath
+    static constexpr auto is_iterator_begin =
+        is_iterator_traits<iterator_traits<iterator>>::value;
+
+  public:
+    static constexpr bool value = !std::is_same<iterator, nonesuch>::value && !std::is_same<sentinel, nonesuch>::value && is_iterator_begin;
+};
+
+template<typename R>
+using iterator_t = enable_if_t<is_range<R>::value, result_of_begin<decltype(std::declval<R&>())>>;
+
+template<typename T>
+using range_value_t = value_type_t<iterator_traits<iterator_t<T>>>;
+
+// The following implementation of is_complete_type is taken from
+// https://blogs.msdn.microsoft.com/vcblog/2015/12/02/partial-support-for-expression-sfinae-in-vs-2015-update-1/
+// and is written by Xiang Fan who agreed to using it in this library.
+
+template<typename T, typename = void>
+struct is_complete_type : std::false_type {};
+
+template<typename T>
+struct is_complete_type<T, decltype(void(sizeof(T)))> : std::true_type {};
+
+template<typename BasicJsonType, typename CompatibleObjectType,
+         typename = void>
+struct is_compatible_object_type_impl : std::false_type {};
+
+template<typename BasicJsonType, typename CompatibleObjectType>
+struct is_compatible_object_type_impl <
+    BasicJsonType, CompatibleObjectType,
+    enable_if_t < is_detected<mapped_type_t, CompatibleObjectType>::value&&
+    is_detected<key_type_t, CompatibleObjectType>::value >>
+{
+    using object_t = typename BasicJsonType::object_t;
+
+    // macOS's is_constructible does not play well with nonesuch...
+    static constexpr bool value =
+        is_constructible<typename object_t::key_type,
+        typename CompatibleObjectType::key_type>::value &&
+        is_constructible<typename object_t::mapped_type,
+        typename CompatibleObjectType::mapped_type>::value;
+};
+
+template<typename BasicJsonType, typename CompatibleObjectType>
+struct is_compatible_object_type
+    : is_compatible_object_type_impl<BasicJsonType, CompatibleObjectType> {};
+
+template<typename BasicJsonType, typename ConstructibleObjectType,
+         typename = void>
+struct is_constructible_object_type_impl : std::false_type {};
+
+template<typename BasicJsonType, typename ConstructibleObjectType>
+struct is_constructible_object_type_impl <
+    BasicJsonType, ConstructibleObjectType,
+    enable_if_t < is_detected<mapped_type_t, ConstructibleObjectType>::value&&
+    is_detected<key_type_t, ConstructibleObjectType>::value >>
+{
+    using object_t = typename BasicJsonType::object_t;
+
+    static constexpr bool value =
+        (is_default_constructible<ConstructibleObjectType>::value &&
+         (std::is_move_assignable<ConstructibleObjectType>::value ||
+          std::is_copy_assignable<ConstructibleObjectType>::value) &&
+         (is_constructible<typename ConstructibleObjectType::key_type,
+          typename object_t::key_type>::value &&
+          std::is_same <
+          typename object_t::mapped_type,
+          typename ConstructibleObjectType::mapped_type >::value)) ||
+        (has_from_json<BasicJsonType,
+         typename ConstructibleObjectType::mapped_type>::value ||
+         has_non_default_from_json <
+         BasicJsonType,
+         typename ConstructibleObjectType::mapped_type >::value);
+};
+
+template<typename BasicJsonType, typename ConstructibleObjectType>
+struct is_constructible_object_type
+    : is_constructible_object_type_impl<BasicJsonType,
+      ConstructibleObjectType> {};
+
+template<typename BasicJsonType, typename CompatibleStringType>
+struct is_compatible_string_type
+{
+    static constexpr auto value =
+        is_constructible<typename BasicJsonType::string_t, CompatibleStringType>::value;
+};
+
+template<typename BasicJsonType, typename ConstructibleStringType>
+struct is_constructible_string_type
+{
+    static constexpr auto value =
+        is_constructible<ConstructibleStringType,
+        typename BasicJsonType::string_t>::value;
+};
+
+template<typename BasicJsonType, typename CompatibleArrayType, typename = void>
+struct is_compatible_array_type_impl : std::false_type {};
+
+template<typename BasicJsonType, typename CompatibleArrayType>
+struct is_compatible_array_type_impl <
+    BasicJsonType, CompatibleArrayType,
+    enable_if_t <
+    is_detected<iterator_t, CompatibleArrayType>::value&&
+    is_iterator_traits<iterator_traits<detected_t<iterator_t, CompatibleArrayType>>>::value&&
+// special case for types like std::filesystem::path whose iterator's value_type are themselves
+// c.f. https://github.com/nlohmann/json/pull/3073
+    !std::is_same<CompatibleArrayType, detected_t<range_value_t, CompatibleArrayType>>::value >>
+{
+    static constexpr bool value =
+        is_constructible<BasicJsonType,
+        range_value_t<CompatibleArrayType>>::value;
+};
+
+template<typename BasicJsonType, typename CompatibleArrayType>
+struct is_compatible_array_type
+    : is_compatible_array_type_impl<BasicJsonType, CompatibleArrayType> {};
+
+template<typename BasicJsonType, typename ConstructibleArrayType, typename = void>
+struct is_constructible_array_type_impl : std::false_type {};
+
+template<typename BasicJsonType, typename ConstructibleArrayType>
+struct is_constructible_array_type_impl <
+    BasicJsonType, ConstructibleArrayType,
+    enable_if_t<std::is_same<ConstructibleArrayType,
+    typename BasicJsonType::value_type>::value >>
+            : std::true_type {};
+
+template<typename BasicJsonType, typename ConstructibleArrayType>
+struct is_constructible_array_type_impl <
+    BasicJsonType, ConstructibleArrayType,
+    enable_if_t < !std::is_same<ConstructibleArrayType,
+    typename BasicJsonType::value_type>::value&&
+    !is_compatible_string_type<BasicJsonType, ConstructibleArrayType>::value&&
+    is_default_constructible<ConstructibleArrayType>::value&&
+(std::is_move_assignable<ConstructibleArrayType>::value ||
+ std::is_copy_assignable<ConstructibleArrayType>::value)&&
+is_detected<iterator_t, ConstructibleArrayType>::value&&
+is_iterator_traits<iterator_traits<detected_t<iterator_t, ConstructibleArrayType>>>::value&&
+is_detected<range_value_t, ConstructibleArrayType>::value&&
+// special case for types like std::filesystem::path whose iterator's value_type are themselves
+// c.f. https://github.com/nlohmann/json/pull/3073
+!std::is_same<ConstructibleArrayType, detected_t<range_value_t, ConstructibleArrayType>>::value&&
+        is_complete_type <
+        detected_t<range_value_t, ConstructibleArrayType >>::value >>
+{
+    using value_type = range_value_t<ConstructibleArrayType>;
+
+    static constexpr bool value =
+        std::is_same<value_type,
+        typename BasicJsonType::array_t::value_type>::value ||
+        has_from_json<BasicJsonType,
+        value_type>::value ||
+        has_non_default_from_json <
+        BasicJsonType,
+        value_type >::value;
+};
+
+template<typename BasicJsonType, typename ConstructibleArrayType>
+struct is_constructible_array_type
+    : is_constructible_array_type_impl<BasicJsonType, ConstructibleArrayType> {};
+
+template<typename RealIntegerType, typename CompatibleNumberIntegerType,
+         typename = void>
+struct is_compatible_integer_type_impl : std::false_type {};
+
+template<typename RealIntegerType, typename CompatibleNumberIntegerType>
+struct is_compatible_integer_type_impl <
+    RealIntegerType, CompatibleNumberIntegerType,
+    enable_if_t < std::is_integral<RealIntegerType>::value&&
+    std::is_integral<CompatibleNumberIntegerType>::value&&
+    !std::is_same<bool, CompatibleNumberIntegerType>::value >>
+{
+    // is there an assert somewhere on overflows?
+    using RealLimits = std::numeric_limits<RealIntegerType>;
+    using CompatibleLimits = std::numeric_limits<CompatibleNumberIntegerType>;
+
+    static constexpr auto value =
+        is_constructible<RealIntegerType,
+        CompatibleNumberIntegerType>::value &&
+        CompatibleLimits::is_integer &&
+        RealLimits::is_signed == CompatibleLimits::is_signed;
+};
+
+template<typename RealIntegerType, typename CompatibleNumberIntegerType>
+struct is_compatible_integer_type
+    : is_compatible_integer_type_impl<RealIntegerType,
+      CompatibleNumberIntegerType> {};
+
+template<typename BasicJsonType, typename CompatibleType, typename = void>
+struct is_compatible_type_impl: std::false_type {};
+
+template<typename BasicJsonType, typename CompatibleType>
+struct is_compatible_type_impl <
+    BasicJsonType, CompatibleType,
+    enable_if_t<is_complete_type<CompatibleType>::value >>
+{
+    static constexpr bool value =
+        has_to_json<BasicJsonType, CompatibleType>::value;
+};
+
+template<typename BasicJsonType, typename CompatibleType>
+struct is_compatible_type
+    : is_compatible_type_impl<BasicJsonType, CompatibleType> {};
+
+template<typename T1, typename T2>
+struct is_constructible_tuple : std::false_type {};
+
+template<typename T1, typename... Args>
+struct is_constructible_tuple<T1, std::tuple<Args...>> : conjunction<is_constructible<T1, Args>...> {};
+
+// a naive helper to check if a type is an ordered_map (exploits the fact that
+// ordered_map inherits capacity() from std::vector)
+template <typename T>
+struct is_ordered_map
+{
+    using one = char;
+
+    struct two
+    {
+        char x[2]; // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+    };
+
+    template <typename C> static one test( decltype(&C::capacity) ) ;
+    template <typename C> static two test(...);
+
+    enum { value = sizeof(test<T>(nullptr)) == sizeof(char) }; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+};
+
+// to avoid useless casts (see https://github.com/nlohmann/json/issues/2893#issuecomment-889152324)
+template < typename T, typename U, enable_if_t < !std::is_same<T, U>::value, int > = 0 >
+T conditional_static_cast(U value)
+{
+    return static_cast<T>(value);
+}
+
+template<typename T, typename U, enable_if_t<std::is_same<T, U>::value, int> = 0>
+T conditional_static_cast(U value)
+{
+    return value;
+}
+
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+#ifdef JSON_HAS_CPP_17
+    #include <filesystem>
+#endif
+
+namespace nlohmann
+{
+namespace detail
+{
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_null()))
+    {
+        JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name()), j));
+    }
+    n = nullptr;
+}
+
+// overloads for basic_json template parameters
+template < typename BasicJsonType, typename ArithmeticType,
+           enable_if_t < std::is_arithmetic<ArithmeticType>::value&&
+                         !std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
+                         int > = 0 >
+void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)
+{
+    switch (static_cast<value_t>(j))
+    {
+        case value_t::number_unsigned:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
+            break;
+        }
+        case value_t::number_integer:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
+            break;
+        }
+        case value_t::number_float:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
+            break;
+        }
+
+        case value_t::null:
+        case value_t::object:
+        case value_t::array:
+        case value_t::string:
+        case value_t::boolean:
+        case value_t::binary:
+        case value_t::discarded:
+        default:
+            JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j));
+    }
+}
+
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_boolean()))
+    {
+        JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(j.type_name()), j));
+    }
+    b = *j.template get_ptr<const typename BasicJsonType::boolean_t*>();
+}
+
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_string()))
+    {
+        JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j));
+    }
+    s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
+}
+
+template <
+    typename BasicJsonType, typename ConstructibleStringType,
+    enable_if_t <
+        is_constructible_string_type<BasicJsonType, ConstructibleStringType>::value&&
+        !std::is_same<typename BasicJsonType::string_t,
+                      ConstructibleStringType>::value,
+        int > = 0 >
+void from_json(const BasicJsonType& j, ConstructibleStringType& s)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_string()))
+    {
+        JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j));
+    }
+
+    s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
+}
+
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val)
+{
+    get_arithmetic_value(j, val);
+}
+
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val)
+{
+    get_arithmetic_value(j, val);
+}
+
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val)
+{
+    get_arithmetic_value(j, val);
+}
+
+template<typename BasicJsonType, typename EnumType,
+         enable_if_t<std::is_enum<EnumType>::value, int> = 0>
+void from_json(const BasicJsonType& j, EnumType& e)
+{
+    typename std::underlying_type<EnumType>::type val;
+    get_arithmetic_value(j, val);
+    e = static_cast<EnumType>(val);
+}
+
+// forward_list doesn't have an insert method
+template<typename BasicJsonType, typename T, typename Allocator,
+         enable_if_t<is_getable<BasicJsonType, T>::value, int> = 0>
+void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+    l.clear();
+    std::transform(j.rbegin(), j.rend(),
+                   std::front_inserter(l), [](const BasicJsonType & i)
+    {
+        return i.template get<T>();
+    });
+}
+
+// valarray doesn't have an insert method
+template<typename BasicJsonType, typename T,
+         enable_if_t<is_getable<BasicJsonType, T>::value, int> = 0>
+void from_json(const BasicJsonType& j, std::valarray<T>& l)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+    l.resize(j.size());
+    std::transform(j.begin(), j.end(), std::begin(l),
+                   [](const BasicJsonType & elem)
+    {
+        return elem.template get<T>();
+    });
+}
+
+template<typename BasicJsonType, typename T, std::size_t N>
+auto from_json(const BasicJsonType& j, T (&arr)[N])  // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+-> decltype(j.template get<T>(), void())
+{
+    for (std::size_t i = 0; i < N; ++i)
+    {
+        arr[i] = j.at(i).template get<T>();
+    }
+}
+
+template<typename BasicJsonType>
+void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/)
+{
+    arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
+}
+
+template<typename BasicJsonType, typename T, std::size_t N>
+auto from_json_array_impl(const BasicJsonType& j, std::array<T, N>& arr,
+                          priority_tag<2> /*unused*/)
+-> decltype(j.template get<T>(), void())
+{
+    for (std::size_t i = 0; i < N; ++i)
+    {
+        arr[i] = j.at(i).template get<T>();
+    }
+}
+
+template<typename BasicJsonType, typename ConstructibleArrayType,
+         enable_if_t<
+             std::is_assignable<ConstructibleArrayType&, ConstructibleArrayType>::value,
+             int> = 0>
+auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/)
+-> decltype(
+    arr.reserve(std::declval<typename ConstructibleArrayType::size_type>()),
+    j.template get<typename ConstructibleArrayType::value_type>(),
+    void())
+{
+    using std::end;
+
+    ConstructibleArrayType ret;
+    ret.reserve(j.size());
+    std::transform(j.begin(), j.end(),
+                   std::inserter(ret, end(ret)), [](const BasicJsonType & i)
+    {
+        // get<BasicJsonType>() returns *this, this won't call a from_json
+        // method when value_type is BasicJsonType
+        return i.template get<typename ConstructibleArrayType::value_type>();
+    });
+    arr = std::move(ret);
+}
+
+template<typename BasicJsonType, typename ConstructibleArrayType,
+         enable_if_t<
+             std::is_assignable<ConstructibleArrayType&, ConstructibleArrayType>::value,
+             int> = 0>
+void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr,
+                          priority_tag<0> /*unused*/)
+{
+    using std::end;
+
+    ConstructibleArrayType ret;
+    std::transform(
+        j.begin(), j.end(), std::inserter(ret, end(ret)),
+        [](const BasicJsonType & i)
+    {
+        // get<BasicJsonType>() returns *this, this won't call a from_json
+        // method when value_type is BasicJsonType
+        return i.template get<typename ConstructibleArrayType::value_type>();
+    });
+    arr = std::move(ret);
+}
+
+template < typename BasicJsonType, typename ConstructibleArrayType,
+           enable_if_t <
+               is_constructible_array_type<BasicJsonType, ConstructibleArrayType>::value&&
+               !is_constructible_object_type<BasicJsonType, ConstructibleArrayType>::value&&
+               !is_constructible_string_type<BasicJsonType, ConstructibleArrayType>::value&&
+               !std::is_same<ConstructibleArrayType, typename BasicJsonType::binary_t>::value&&
+               !is_basic_json<ConstructibleArrayType>::value,
+               int > = 0 >
+auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr)
+-> decltype(from_json_array_impl(j, arr, priority_tag<3> {}),
+j.template get<typename ConstructibleArrayType::value_type>(),
+void())
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+
+    from_json_array_impl(j, arr, priority_tag<3> {});
+}
+
+template < typename BasicJsonType, typename T, std::size_t... Idx >
+std::array<T, sizeof...(Idx)> from_json_inplace_array_impl(BasicJsonType&& j,
+        identity_tag<std::array<T, sizeof...(Idx)>> /*unused*/, index_sequence<Idx...> /*unused*/)
+{
+    return { { std::forward<BasicJsonType>(j).at(Idx).template get<T>()... } };
+}
+
+template < typename BasicJsonType, typename T, std::size_t N >
+auto from_json(BasicJsonType&& j, identity_tag<std::array<T, N>> tag)
+-> decltype(from_json_inplace_array_impl(std::forward<BasicJsonType>(j), tag, make_index_sequence<N> {}))
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+
+    return from_json_inplace_array_impl(std::forward<BasicJsonType>(j), tag, make_index_sequence<N> {});
+}
+
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, typename BasicJsonType::binary_t& bin)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_binary()))
+    {
+        JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(j.type_name()), j));
+    }
+
+    bin = *j.template get_ptr<const typename BasicJsonType::binary_t*>();
+}
+
+template<typename BasicJsonType, typename ConstructibleObjectType,
+         enable_if_t<is_constructible_object_type<BasicJsonType, ConstructibleObjectType>::value, int> = 0>
+void from_json(const BasicJsonType& j, ConstructibleObjectType& obj)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_object()))
+    {
+        JSON_THROW(type_error::create(302, "type must be object, but is " + std::string(j.type_name()), j));
+    }
+
+    ConstructibleObjectType ret;
+    const auto* inner_object = j.template get_ptr<const typename BasicJsonType::object_t*>();
+    using value_type = typename ConstructibleObjectType::value_type;
+    std::transform(
+        inner_object->begin(), inner_object->end(),
+        std::inserter(ret, ret.begin()),
+        [](typename BasicJsonType::object_t::value_type const & p)
+    {
+        return value_type(p.first, p.second.template get<typename ConstructibleObjectType::mapped_type>());
+    });
+    obj = std::move(ret);
+}
+
+// overload for arithmetic types, not chosen for basic_json template arguments
+// (BooleanType, etc..); note: Is it really necessary to provide explicit
+// overloads for boolean_t etc. in case of a custom BooleanType which is not
+// an arithmetic type?
+template < typename BasicJsonType, typename ArithmeticType,
+           enable_if_t <
+               std::is_arithmetic<ArithmeticType>::value&&
+               !std::is_same<ArithmeticType, typename BasicJsonType::number_unsigned_t>::value&&
+               !std::is_same<ArithmeticType, typename BasicJsonType::number_integer_t>::value&&
+               !std::is_same<ArithmeticType, typename BasicJsonType::number_float_t>::value&&
+               !std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
+               int > = 0 >
+void from_json(const BasicJsonType& j, ArithmeticType& val)
+{
+    switch (static_cast<value_t>(j))
+    {
+        case value_t::number_unsigned:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
+            break;
+        }
+        case value_t::number_integer:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
+            break;
+        }
+        case value_t::number_float:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
+            break;
+        }
+        case value_t::boolean:
+        {
+            val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::boolean_t*>());
+            break;
+        }
+
+        case value_t::null:
+        case value_t::object:
+        case value_t::array:
+        case value_t::string:
+        case value_t::binary:
+        case value_t::discarded:
+        default:
+            JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j));
+    }
+}
+
+template<typename BasicJsonType, typename... Args, std::size_t... Idx>
+std::tuple<Args...> from_json_tuple_impl_base(BasicJsonType&& j, index_sequence<Idx...> /*unused*/)
+{
+    return std::make_tuple(std::forward<BasicJsonType>(j).at(Idx).template get<Args>()...);
+}
+
+template < typename BasicJsonType, class A1, class A2 >
+std::pair<A1, A2> from_json_tuple_impl(BasicJsonType&& j, identity_tag<std::pair<A1, A2>> /*unused*/, priority_tag<0> /*unused*/)
+{
+    return {std::forward<BasicJsonType>(j).at(0).template get<A1>(),
+            std::forward<BasicJsonType>(j).at(1).template get<A2>()};
+}
+
+template<typename BasicJsonType, typename A1, typename A2>
+void from_json_tuple_impl(BasicJsonType&& j, std::pair<A1, A2>& p, priority_tag<1> /*unused*/)
+{
+    p = from_json_tuple_impl(std::forward<BasicJsonType>(j), identity_tag<std::pair<A1, A2>> {}, priority_tag<0> {});
+}
+
+template<typename BasicJsonType, typename... Args>
+std::tuple<Args...> from_json_tuple_impl(BasicJsonType&& j, identity_tag<std::tuple<Args...>> /*unused*/, priority_tag<2> /*unused*/)
+{
+    return from_json_tuple_impl_base<BasicJsonType, Args...>(std::forward<BasicJsonType>(j), index_sequence_for<Args...> {});
+}
+
+template<typename BasicJsonType, typename... Args>
+void from_json_tuple_impl(BasicJsonType&& j, std::tuple<Args...>& t, priority_tag<3> /*unused*/)
+{
+    t = from_json_tuple_impl_base<BasicJsonType, Args...>(std::forward<BasicJsonType>(j), index_sequence_for<Args...> {});
+}
+
+template<typename BasicJsonType, typename TupleRelated>
+auto from_json(BasicJsonType&& j, TupleRelated&& t)
+-> decltype(from_json_tuple_impl(std::forward<BasicJsonType>(j), std::forward<TupleRelated>(t), priority_tag<3> {}))
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+
+    return from_json_tuple_impl(std::forward<BasicJsonType>(j), std::forward<TupleRelated>(t), priority_tag<3> {});
+}
+
+template < typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator,
+           typename = enable_if_t < !std::is_constructible <
+                                        typename BasicJsonType::string_t, Key >::value >>
+void from_json(const BasicJsonType& j, std::map<Key, Value, Compare, Allocator>& m)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+    m.clear();
+    for (const auto& p : j)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!p.is_array()))
+        {
+            JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j));
+        }
+        m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
+    }
+}
+
+template < typename BasicJsonType, typename Key, typename Value, typename Hash, typename KeyEqual, typename Allocator,
+           typename = enable_if_t < !std::is_constructible <
+                                        typename BasicJsonType::string_t, Key >::value >>
+void from_json(const BasicJsonType& j, std::unordered_map<Key, Value, Hash, KeyEqual, Allocator>& m)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
+    {
+        JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j));
+    }
+    m.clear();
+    for (const auto& p : j)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!p.is_array()))
+        {
+            JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j));
+        }
+        m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
+    }
+}
+
+#ifdef JSON_HAS_CPP_17
+template<typename BasicJsonType>
+void from_json(const BasicJsonType& j, std::filesystem::path& p)
+{
+    if (JSON_HEDLEY_UNLIKELY(!j.is_string()))
+    {
+        JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j));
+    }
+    p = *j.template get_ptr<const typename BasicJsonType::string_t*>();
+}
+#endif
+
+struct from_json_fn
+{
+    template<typename BasicJsonType, typename T>
+    auto operator()(const BasicJsonType& j, T&& val) const
+    noexcept(noexcept(from_json(j, std::forward<T>(val))))
+    -> decltype(from_json(j, std::forward<T>(val)))
+    {
+        return from_json(j, std::forward<T>(val));
+    }
+};
+}  // namespace detail
+
+/// namespace to hold default `from_json` function
+/// to see why this is required:
+/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html
+namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces)
+{
+constexpr const auto& from_json = detail::static_const<detail::from_json_fn>::value; // NOLINT(misc-definitions-in-headers)
+} // namespace
+} // namespace nlohmann
+
+// #include <nlohmann/detail/conversions/to_json.hpp>
+
+
+#include <algorithm> // copy
+#include <iterator> // begin, end
+#include <string> // string
+#include <tuple> // tuple, get
+#include <type_traits> // is_same, is_constructible, is_floating_point, is_enum, underlying_type
+#include <utility> // move, forward, declval, pair
+#include <valarray> // valarray
+#include <vector> // vector
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/iterators/iteration_proxy.hpp>
+
+
+#include <cstddef> // size_t
+#include <iterator> // input_iterator_tag
+#include <string> // string, to_string
+#include <tuple> // tuple_size, get, tuple_element
+#include <utility> // move
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+template<typename string_type>
+void int_to_string( string_type& target, std::size_t value )
+{
+    // For ADL
+    using std::to_string;
+    target = to_string(value);
+}
+template<typename IteratorType> class iteration_proxy_value
+{
+  public:
+    using difference_type = std::ptrdiff_t;
+    using value_type = iteration_proxy_value;
+    using pointer = value_type * ;
+    using reference = value_type & ;
+    using iterator_category = std::input_iterator_tag;
+    using string_type = typename std::remove_cv< typename std::remove_reference<decltype( std::declval<IteratorType>().key() ) >::type >::type;
+
+  private:
+    /// the iterator
+    IteratorType anchor;
+    /// an index for arrays (used to create key names)
+    std::size_t array_index = 0;
+    /// last stringified array index
+    mutable std::size_t array_index_last = 0;
+    /// a string representation of the array index
+    mutable string_type array_index_str = "0";
+    /// an empty string (to return a reference for primitive values)
+    const string_type empty_str{};
+
+  public:
+    explicit iteration_proxy_value(IteratorType it) noexcept
+        : anchor(std::move(it))
+    {}
+
+    /// dereference operator (needed for range-based for)
+    iteration_proxy_value& operator*()
+    {
+        return *this;
+    }
+
+    /// increment operator (needed for range-based for)
+    iteration_proxy_value& operator++()
+    {
+        ++anchor;
+        ++array_index;
+
+        return *this;
+    }
+
+    /// equality operator (needed for InputIterator)
+    bool operator==(const iteration_proxy_value& o) const
+    {
+        return anchor == o.anchor;
+    }
+
+    /// inequality operator (needed for range-based for)
+    bool operator!=(const iteration_proxy_value& o) const
+    {
+        return anchor != o.anchor;
+    }
+
+    /// return key of the iterator
+    const string_type& key() const
+    {
+        JSON_ASSERT(anchor.m_object != nullptr);
+
+        switch (anchor.m_object->type())
+        {
+            // use integer array index as key
+            case value_t::array:
+            {
+                if (array_index != array_index_last)
+                {
+                    int_to_string( array_index_str, array_index );
+                    array_index_last = array_index;
+                }
+                return array_index_str;
+            }
+
+            // use key from the object
+            case value_t::object:
+                return anchor.key();
+
+            // use an empty key for all primitive types
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+                return empty_str;
+        }
+    }
+
+    /// return value of the iterator
+    typename IteratorType::reference value() const
+    {
+        return anchor.value();
+    }
+};
+
+/// proxy class for the items() function
+template<typename IteratorType> class iteration_proxy
+{
+  private:
+    /// the container to iterate
+    typename IteratorType::reference container;
+
+  public:
+    /// construct iteration proxy from a container
+    explicit iteration_proxy(typename IteratorType::reference cont) noexcept
+        : container(cont) {}
+
+    /// return iterator begin (needed for range-based for)
+    iteration_proxy_value<IteratorType> begin() noexcept
+    {
+        return iteration_proxy_value<IteratorType>(container.begin());
+    }
+
+    /// return iterator end (needed for range-based for)
+    iteration_proxy_value<IteratorType> end() noexcept
+    {
+        return iteration_proxy_value<IteratorType>(container.end());
+    }
+};
+// Structured Bindings Support
+// For further reference see https://blog.tartanllama.xyz/structured-bindings/
+// And see https://github.com/nlohmann/json/pull/1391
+template<std::size_t N, typename IteratorType, enable_if_t<N == 0, int> = 0>
+auto get(const nlohmann::detail::iteration_proxy_value<IteratorType>& i) -> decltype(i.key())
+{
+    return i.key();
+}
+// Structured Bindings Support
+// For further reference see https://blog.tartanllama.xyz/structured-bindings/
+// And see https://github.com/nlohmann/json/pull/1391
+template<std::size_t N, typename IteratorType, enable_if_t<N == 1, int> = 0>
+auto get(const nlohmann::detail::iteration_proxy_value<IteratorType>& i) -> decltype(i.value())
+{
+    return i.value();
+}
+}  // namespace detail
+}  // namespace nlohmann
+
+// The Addition to the STD Namespace is required to add
+// Structured Bindings Support to the iteration_proxy_value class
+// For further reference see https://blog.tartanllama.xyz/structured-bindings/
+// And see https://github.com/nlohmann/json/pull/1391
+namespace std
+{
+#if defined(__clang__)
+    // Fix: https://github.com/nlohmann/json/issues/1401
+    #pragma clang diagnostic push
+    #pragma clang diagnostic ignored "-Wmismatched-tags"
+#endif
+template<typename IteratorType>
+class tuple_size<::nlohmann::detail::iteration_proxy_value<IteratorType>>
+            : public std::integral_constant<std::size_t, 2> {};
+
+template<std::size_t N, typename IteratorType>
+class tuple_element<N, ::nlohmann::detail::iteration_proxy_value<IteratorType >>
+{
+  public:
+    using type = decltype(
+                     get<N>(std::declval <
+                            ::nlohmann::detail::iteration_proxy_value<IteratorType >> ()));
+};
+#if defined(__clang__)
+    #pragma clang diagnostic pop
+#endif
+} // namespace std
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+#ifdef JSON_HAS_CPP_17
+    #include <filesystem>
+#endif
+
+namespace nlohmann
+{
+namespace detail
+{
+//////////////////
+// constructors //
+//////////////////
+
+/*
+ * Note all external_constructor<>::construct functions need to call
+ * j.m_value.destroy(j.m_type) to avoid a memory leak in case j contains an
+ * allocated value (e.g., a string). See bug issue
+ * https://github.com/nlohmann/json/issues/2865 for more information.
+ */
+
+template<value_t> struct external_constructor;
+
+template<>
+struct external_constructor<value_t::boolean>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::boolean;
+        j.m_value = b;
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::string>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::string;
+        j.m_value = s;
+        j.assert_invariant();
+    }
+
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::string;
+        j.m_value = std::move(s);
+        j.assert_invariant();
+    }
+
+    template < typename BasicJsonType, typename CompatibleStringType,
+               enable_if_t < !std::is_same<CompatibleStringType, typename BasicJsonType::string_t>::value,
+                             int > = 0 >
+    static void construct(BasicJsonType& j, const CompatibleStringType& str)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::string;
+        j.m_value.string = j.template create<typename BasicJsonType::string_t>(str);
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::binary>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, const typename BasicJsonType::binary_t& b)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::binary;
+        j.m_value = typename BasicJsonType::binary_t(b);
+        j.assert_invariant();
+    }
+
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::binary_t&& b)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::binary;
+        j.m_value = typename BasicJsonType::binary_t(std::move(b));
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::number_float>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::number_float;
+        j.m_value = val;
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::number_unsigned>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::number_unsigned;
+        j.m_value = val;
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::number_integer>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::number_integer;
+        j.m_value = val;
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::array>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::array;
+        j.m_value = arr;
+        j.set_parents();
+        j.assert_invariant();
+    }
+
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::array;
+        j.m_value = std::move(arr);
+        j.set_parents();
+        j.assert_invariant();
+    }
+
+    template < typename BasicJsonType, typename CompatibleArrayType,
+               enable_if_t < !std::is_same<CompatibleArrayType, typename BasicJsonType::array_t>::value,
+                             int > = 0 >
+    static void construct(BasicJsonType& j, const CompatibleArrayType& arr)
+    {
+        using std::begin;
+        using std::end;
+
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::array;
+        j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
+        j.set_parents();
+        j.assert_invariant();
+    }
+
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, const std::vector<bool>& arr)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::array;
+        j.m_value = value_t::array;
+        j.m_value.array->reserve(arr.size());
+        for (const bool x : arr)
+        {
+            j.m_value.array->push_back(x);
+            j.set_parent(j.m_value.array->back());
+        }
+        j.assert_invariant();
+    }
+
+    template<typename BasicJsonType, typename T,
+             enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
+    static void construct(BasicJsonType& j, const std::valarray<T>& arr)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::array;
+        j.m_value = value_t::array;
+        j.m_value.array->resize(arr.size());
+        if (arr.size() > 0)
+        {
+            std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin());
+        }
+        j.set_parents();
+        j.assert_invariant();
+    }
+};
+
+template<>
+struct external_constructor<value_t::object>
+{
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::object;
+        j.m_value = obj;
+        j.set_parents();
+        j.assert_invariant();
+    }
+
+    template<typename BasicJsonType>
+    static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
+    {
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::object;
+        j.m_value = std::move(obj);
+        j.set_parents();
+        j.assert_invariant();
+    }
+
+    template < typename BasicJsonType, typename CompatibleObjectType,
+               enable_if_t < !std::is_same<CompatibleObjectType, typename BasicJsonType::object_t>::value, int > = 0 >
+    static void construct(BasicJsonType& j, const CompatibleObjectType& obj)
+    {
+        using std::begin;
+        using std::end;
+
+        j.m_value.destroy(j.m_type);
+        j.m_type = value_t::object;
+        j.m_value.object = j.template create<typename BasicJsonType::object_t>(begin(obj), end(obj));
+        j.set_parents();
+        j.assert_invariant();
+    }
+};
+
+/////////////
+// to_json //
+/////////////
+
+template<typename BasicJsonType, typename T,
+         enable_if_t<std::is_same<T, typename BasicJsonType::boolean_t>::value, int> = 0>
+void to_json(BasicJsonType& j, T b) noexcept
+{
+    external_constructor<value_t::boolean>::construct(j, b);
+}
+
+template<typename BasicJsonType, typename CompatibleString,
+         enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0>
+void to_json(BasicJsonType& j, const CompatibleString& s)
+{
+    external_constructor<value_t::string>::construct(j, s);
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s)
+{
+    external_constructor<value_t::string>::construct(j, std::move(s));
+}
+
+template<typename BasicJsonType, typename FloatType,
+         enable_if_t<std::is_floating_point<FloatType>::value, int> = 0>
+void to_json(BasicJsonType& j, FloatType val) noexcept
+{
+    external_constructor<value_t::number_float>::construct(j, static_cast<typename BasicJsonType::number_float_t>(val));
+}
+
+template<typename BasicJsonType, typename CompatibleNumberUnsignedType,
+         enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t, CompatibleNumberUnsignedType>::value, int> = 0>
+void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
+{
+    external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val));
+}
+
+template<typename BasicJsonType, typename CompatibleNumberIntegerType,
+         enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t, CompatibleNumberIntegerType>::value, int> = 0>
+void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept
+{
+    external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val));
+}
+
+template<typename BasicJsonType, typename EnumType,
+         enable_if_t<std::is_enum<EnumType>::value, int> = 0>
+void to_json(BasicJsonType& j, EnumType e) noexcept
+{
+    using underlying_type = typename std::underlying_type<EnumType>::type;
+    external_constructor<value_t::number_integer>::construct(j, static_cast<underlying_type>(e));
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, const std::vector<bool>& e)
+{
+    external_constructor<value_t::array>::construct(j, e);
+}
+
+template < typename BasicJsonType, typename CompatibleArrayType,
+           enable_if_t < is_compatible_array_type<BasicJsonType,
+                         CompatibleArrayType>::value&&
+                         !is_compatible_object_type<BasicJsonType, CompatibleArrayType>::value&&
+                         !is_compatible_string_type<BasicJsonType, CompatibleArrayType>::value&&
+                         !std::is_same<typename BasicJsonType::binary_t, CompatibleArrayType>::value&&
+                         !is_basic_json<CompatibleArrayType>::value,
+                         int > = 0 >
+void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
+{
+    external_constructor<value_t::array>::construct(j, arr);
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, const typename BasicJsonType::binary_t& bin)
+{
+    external_constructor<value_t::binary>::construct(j, bin);
+}
+
+template<typename BasicJsonType, typename T,
+         enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
+void to_json(BasicJsonType& j, const std::valarray<T>& arr)
+{
+    external_constructor<value_t::array>::construct(j, std::move(arr));
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
+{
+    external_constructor<value_t::array>::construct(j, std::move(arr));
+}
+
+template < typename BasicJsonType, typename CompatibleObjectType,
+           enable_if_t < is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value&& !is_basic_json<CompatibleObjectType>::value, int > = 0 >
+void to_json(BasicJsonType& j, const CompatibleObjectType& obj)
+{
+    external_constructor<value_t::object>::construct(j, obj);
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
+{
+    external_constructor<value_t::object>::construct(j, std::move(obj));
+}
+
+template <
+    typename BasicJsonType, typename T, std::size_t N,
+    enable_if_t < !std::is_constructible<typename BasicJsonType::string_t,
+                  const T(&)[N]>::value, // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+                  int > = 0 >
+void to_json(BasicJsonType& j, const T(&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+{
+    external_constructor<value_t::array>::construct(j, arr);
+}
+
+template < typename BasicJsonType, typename T1, typename T2, enable_if_t < std::is_constructible<BasicJsonType, T1>::value&& std::is_constructible<BasicJsonType, T2>::value, int > = 0 >
+void to_json(BasicJsonType& j, const std::pair<T1, T2>& p)
+{
+    j = { p.first, p.second };
+}
+
+// for https://github.com/nlohmann/json/pull/1134
+template<typename BasicJsonType, typename T,
+         enable_if_t<std::is_same<T, iteration_proxy_value<typename BasicJsonType::iterator>>::value, int> = 0>
+void to_json(BasicJsonType& j, const T& b)
+{
+    j = { {b.key(), b.value()} };
+}
+
+template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
+void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...> /*unused*/)
+{
+    j = { std::get<Idx>(t)... };
+}
+
+template<typename BasicJsonType, typename T, enable_if_t<is_constructible_tuple<BasicJsonType, T>::value, int > = 0>
+void to_json(BasicJsonType& j, const T& t)
+{
+    to_json_tuple_impl(j, t, make_index_sequence<std::tuple_size<T>::value> {});
+}
+
+#ifdef JSON_HAS_CPP_17
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, const std::filesystem::path& p)
+{
+    j = p.string();
+}
+#endif
+
+struct to_json_fn
+{
+    template<typename BasicJsonType, typename T>
+    auto operator()(BasicJsonType& j, T&& val) const noexcept(noexcept(to_json(j, std::forward<T>(val))))
+    -> decltype(to_json(j, std::forward<T>(val)), void())
+    {
+        return to_json(j, std::forward<T>(val));
+    }
+};
+}  // namespace detail
+
+/// namespace to hold default `to_json` function
+/// to see why this is required:
+/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html
+namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces)
+{
+constexpr const auto& to_json = detail::static_const<detail::to_json_fn>::value; // NOLINT(misc-definitions-in-headers)
+} // namespace
+} // namespace nlohmann
+
+// #include <nlohmann/detail/meta/identity_tag.hpp>
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+
+namespace nlohmann
+{
+
+template<typename ValueType, typename>
+struct adl_serializer
+{
+    /*!
+    @brief convert a JSON value to any value type
+
+    This function is usually called by the `get()` function of the
+    @ref basic_json class (either explicit or via conversion operators).
+
+    @note This function is chosen for default-constructible value types.
+
+    @param[in] j        JSON value to read from
+    @param[in,out] val  value to write to
+    */
+    template<typename BasicJsonType, typename TargetType = ValueType>
+    static auto from_json(BasicJsonType && j, TargetType& val) noexcept(
+        noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), val)))
+    -> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), val), void())
+    {
+        ::nlohmann::from_json(std::forward<BasicJsonType>(j), val);
+    }
+
+    /*!
+    @brief convert a JSON value to any value type
+
+    This function is usually called by the `get()` function of the
+    @ref basic_json class (either explicit or via conversion operators).
+
+    @note This function is chosen for value types which are not default-constructible.
+
+    @param[in] j  JSON value to read from
+
+    @return copy of the JSON value, converted to @a ValueType
+    */
+    template<typename BasicJsonType, typename TargetType = ValueType>
+    static auto from_json(BasicJsonType && j) noexcept(
+    noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {})))
+    -> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {}))
+    {
+        return ::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {});
+    }
+
+    /*!
+    @brief convert any value type to a JSON value
+
+    This function is usually called by the constructors of the @ref basic_json
+    class.
+
+    @param[in,out] j  JSON value to write to
+    @param[in] val    value to read from
+    */
+    template<typename BasicJsonType, typename TargetType = ValueType>
+    static auto to_json(BasicJsonType& j, TargetType && val) noexcept(
+        noexcept(::nlohmann::to_json(j, std::forward<TargetType>(val))))
+    -> decltype(::nlohmann::to_json(j, std::forward<TargetType>(val)), void())
+    {
+        ::nlohmann::to_json(j, std::forward<TargetType>(val));
+    }
+};
+}  // namespace nlohmann
+
+// #include <nlohmann/byte_container_with_subtype.hpp>
+
+
+#include <cstdint> // uint8_t, uint64_t
+#include <tuple> // tie
+#include <utility> // move
+
+namespace nlohmann
+{
+
+/*!
+@brief an internal type for a backed binary type
+
+This type extends the template parameter @a BinaryType provided to `basic_json`
+with a subtype used by BSON and MessagePack. This type exists so that the user
+does not have to specify a type themselves with a specific naming scheme in
+order to override the binary type.
+
+@tparam BinaryType container to store bytes (`std::vector<std::uint8_t>` by
+                   default)
+
+@since version 3.8.0; changed type of subtypes to std::uint64_t in 3.10.0.
+*/
+template<typename BinaryType>
+class byte_container_with_subtype : public BinaryType
+{
+  public:
+    /// the type of the underlying container
+    using container_type = BinaryType;
+    /// the type of the subtype
+    using subtype_type = std::uint64_t;
+
+    byte_container_with_subtype() noexcept(noexcept(container_type()))
+        : container_type()
+    {}
+
+    byte_container_with_subtype(const container_type& b) noexcept(noexcept(container_type(b)))
+        : container_type(b)
+    {}
+
+    byte_container_with_subtype(container_type&& b) noexcept(noexcept(container_type(std::move(b))))
+        : container_type(std::move(b))
+    {}
+
+    byte_container_with_subtype(const container_type& b, subtype_type subtype_) noexcept(noexcept(container_type(b)))
+        : container_type(b)
+        , m_subtype(subtype_)
+        , m_has_subtype(true)
+    {}
+
+    byte_container_with_subtype(container_type&& b, subtype_type subtype_) noexcept(noexcept(container_type(std::move(b))))
+        : container_type(std::move(b))
+        , m_subtype(subtype_)
+        , m_has_subtype(true)
+    {}
+
+    bool operator==(const byte_container_with_subtype& rhs) const
+    {
+        return std::tie(static_cast<const BinaryType&>(*this), m_subtype, m_has_subtype) ==
+               std::tie(static_cast<const BinaryType&>(rhs), rhs.m_subtype, rhs.m_has_subtype);
+    }
+
+    bool operator!=(const byte_container_with_subtype& rhs) const
+    {
+        return !(rhs == *this);
+    }
+
+    /*!
+    @brief sets the binary subtype
+
+    Sets the binary subtype of the value, also flags a binary JSON value as
+    having a subtype, which has implications for serialization.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @sa see @ref subtype() -- return the binary subtype
+    @sa see @ref clear_subtype() -- clears the binary subtype
+    @sa see @ref has_subtype() -- returns whether or not the binary value has a
+    subtype
+
+    @since version 3.8.0
+    */
+    void set_subtype(subtype_type subtype_) noexcept
+    {
+        m_subtype = subtype_;
+        m_has_subtype = true;
+    }
+
+    /*!
+    @brief return the binary subtype
+
+    Returns the numerical subtype of the value if it has a subtype. If it does
+    not have a subtype, this function will return subtype_type(-1) as a sentinel
+    value.
+
+    @return the numerical subtype of the binary value
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @sa see @ref set_subtype() -- sets the binary subtype
+    @sa see @ref clear_subtype() -- clears the binary subtype
+    @sa see @ref has_subtype() -- returns whether or not the binary value has a
+    subtype
+
+    @since version 3.8.0; fixed return value to properly return
+           subtype_type(-1) as documented in version 3.10.0
+    */
+    constexpr subtype_type subtype() const noexcept
+    {
+        return m_has_subtype ? m_subtype : subtype_type(-1);
+    }
+
+    /*!
+    @brief return whether the value has a subtype
+
+    @return whether the value has a subtype
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @sa see @ref subtype() -- return the binary subtype
+    @sa see @ref set_subtype() -- sets the binary subtype
+    @sa see @ref clear_subtype() -- clears the binary subtype
+
+    @since version 3.8.0
+    */
+    constexpr bool has_subtype() const noexcept
+    {
+        return m_has_subtype;
+    }
+
+    /*!
+    @brief clears the binary subtype
+
+    Clears the binary subtype and flags the value as not having a subtype, which
+    has implications for serialization; for instance MessagePack will prefer the
+    bin family over the ext family.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @sa see @ref subtype() -- return the binary subtype
+    @sa see @ref set_subtype() -- sets the binary subtype
+    @sa see @ref has_subtype() -- returns whether or not the binary value has a
+    subtype
+
+    @since version 3.8.0
+    */
+    void clear_subtype() noexcept
+    {
+        m_subtype = 0;
+        m_has_subtype = false;
+    }
+
+  private:
+    subtype_type m_subtype = 0;
+    bool m_has_subtype = false;
+};
+
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/conversions/from_json.hpp>
+
+// #include <nlohmann/detail/conversions/to_json.hpp>
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/hash.hpp>
+
+
+#include <cstdint> // uint8_t
+#include <cstddef> // size_t
+#include <functional> // hash
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+
+// boost::hash_combine
+inline std::size_t combine(std::size_t seed, std::size_t h) noexcept
+{
+    seed ^= h + 0x9e3779b9 + (seed << 6U) + (seed >> 2U);
+    return seed;
+}
+
+/*!
+@brief hash a JSON value
+
+The hash function tries to rely on std::hash where possible. Furthermore, the
+type of the JSON value is taken into account to have different hash values for
+null, 0, 0U, and false, etc.
+
+@tparam BasicJsonType basic_json specialization
+@param j JSON value to hash
+@return hash value of j
+*/
+template<typename BasicJsonType>
+std::size_t hash(const BasicJsonType& j)
+{
+    using string_t = typename BasicJsonType::string_t;
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+
+    const auto type = static_cast<std::size_t>(j.type());
+    switch (j.type())
+    {
+        case BasicJsonType::value_t::null:
+        case BasicJsonType::value_t::discarded:
+        {
+            return combine(type, 0);
+        }
+
+        case BasicJsonType::value_t::object:
+        {
+            auto seed = combine(type, j.size());
+            for (const auto& element : j.items())
+            {
+                const auto h = std::hash<string_t> {}(element.key());
+                seed = combine(seed, h);
+                seed = combine(seed, hash(element.value()));
+            }
+            return seed;
+        }
+
+        case BasicJsonType::value_t::array:
+        {
+            auto seed = combine(type, j.size());
+            for (const auto& element : j)
+            {
+                seed = combine(seed, hash(element));
+            }
+            return seed;
+        }
+
+        case BasicJsonType::value_t::string:
+        {
+            const auto h = std::hash<string_t> {}(j.template get_ref<const string_t&>());
+            return combine(type, h);
+        }
+
+        case BasicJsonType::value_t::boolean:
+        {
+            const auto h = std::hash<bool> {}(j.template get<bool>());
+            return combine(type, h);
+        }
+
+        case BasicJsonType::value_t::number_integer:
+        {
+            const auto h = std::hash<number_integer_t> {}(j.template get<number_integer_t>());
+            return combine(type, h);
+        }
+
+        case BasicJsonType::value_t::number_unsigned:
+        {
+            const auto h = std::hash<number_unsigned_t> {}(j.template get<number_unsigned_t>());
+            return combine(type, h);
+        }
+
+        case BasicJsonType::value_t::number_float:
+        {
+            const auto h = std::hash<number_float_t> {}(j.template get<number_float_t>());
+            return combine(type, h);
+        }
+
+        case BasicJsonType::value_t::binary:
+        {
+            auto seed = combine(type, j.get_binary().size());
+            const auto h = std::hash<bool> {}(j.get_binary().has_subtype());
+            seed = combine(seed, h);
+            seed = combine(seed, static_cast<std::size_t>(j.get_binary().subtype()));
+            for (const auto byte : j.get_binary())
+            {
+                seed = combine(seed, std::hash<std::uint8_t> {}(byte));
+            }
+            return seed;
+        }
+
+        default:                   // LCOV_EXCL_LINE
+            JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+            return 0;              // LCOV_EXCL_LINE
+    }
+}
+
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/input/binary_reader.hpp>
+
+
+#include <algorithm> // generate_n
+#include <array> // array
+#include <cmath> // ldexp
+#include <cstddef> // size_t
+#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
+#include <cstdio> // snprintf
+#include <cstring> // memcpy
+#include <iterator> // back_inserter
+#include <limits> // numeric_limits
+#include <string> // char_traits, string
+#include <utility> // make_pair, move
+#include <vector> // vector
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/input/input_adapters.hpp>
+
+
+#include <array> // array
+#include <cstddef> // size_t
+#include <cstring> // strlen
+#include <iterator> // begin, end, iterator_traits, random_access_iterator_tag, distance, next
+#include <memory> // shared_ptr, make_shared, addressof
+#include <numeric> // accumulate
+#include <string> // string, char_traits
+#include <type_traits> // enable_if, is_base_of, is_pointer, is_integral, remove_pointer
+#include <utility> // pair, declval
+
+#ifndef JSON_NO_IO
+    #include <cstdio>   // FILE *
+    #include <istream>  // istream
+#endif                  // JSON_NO_IO
+
+// #include <nlohmann/detail/iterators/iterator_traits.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+/// the supported input formats
+enum class input_format_t { json, cbor, msgpack, ubjson, bson };
+
+////////////////////
+// input adapters //
+////////////////////
+
+#ifndef JSON_NO_IO
+/*!
+Input adapter for stdio file access. This adapter read only 1 byte and do not use any
+ buffer. This adapter is a very low level adapter.
+*/
+class file_input_adapter
+{
+  public:
+    using char_type = char;
+
+    JSON_HEDLEY_NON_NULL(2)
+    explicit file_input_adapter(std::FILE* f) noexcept
+        : m_file(f)
+    {}
+
+    // make class move-only
+    file_input_adapter(const file_input_adapter&) = delete;
+    file_input_adapter(file_input_adapter&&) noexcept = default;
+    file_input_adapter& operator=(const file_input_adapter&) = delete;
+    file_input_adapter& operator=(file_input_adapter&&) = delete;
+    ~file_input_adapter() = default;
+
+    std::char_traits<char>::int_type get_character() noexcept
+    {
+        return std::fgetc(m_file);
+    }
+
+  private:
+    /// the file pointer to read from
+    std::FILE* m_file;
+};
+
+
+/*!
+Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at
+beginning of input. Does not support changing the underlying std::streambuf
+in mid-input. Maintains underlying std::istream and std::streambuf to support
+subsequent use of standard std::istream operations to process any input
+characters following those used in parsing the JSON input.  Clears the
+std::istream flags; any input errors (e.g., EOF) will be detected by the first
+subsequent call for input from the std::istream.
+*/
+class input_stream_adapter
+{
+  public:
+    using char_type = char;
+
+    ~input_stream_adapter()
+    {
+        // clear stream flags; we use underlying streambuf I/O, do not
+        // maintain ifstream flags, except eof
+        if (is != nullptr)
+        {
+            is->clear(is->rdstate() & std::ios::eofbit);
+        }
+    }
+
+    explicit input_stream_adapter(std::istream& i)
+        : is(&i), sb(i.rdbuf())
+    {}
+
+    // delete because of pointer members
+    input_stream_adapter(const input_stream_adapter&) = delete;
+    input_stream_adapter& operator=(input_stream_adapter&) = delete;
+    input_stream_adapter& operator=(input_stream_adapter&&) = delete;
+
+    input_stream_adapter(input_stream_adapter&& rhs) noexcept
+        : is(rhs.is), sb(rhs.sb)
+    {
+        rhs.is = nullptr;
+        rhs.sb = nullptr;
+    }
+
+    // std::istream/std::streambuf use std::char_traits<char>::to_int_type, to
+    // ensure that std::char_traits<char>::eof() and the character 0xFF do not
+    // end up as the same value, eg. 0xFFFFFFFF.
+    std::char_traits<char>::int_type get_character()
+    {
+        auto res = sb->sbumpc();
+        // set eof manually, as we don't use the istream interface.
+        if (JSON_HEDLEY_UNLIKELY(res == std::char_traits<char>::eof()))
+        {
+            is->clear(is->rdstate() | std::ios::eofbit);
+        }
+        return res;
+    }
+
+  private:
+    /// the associated input stream
+    std::istream* is = nullptr;
+    std::streambuf* sb = nullptr;
+};
+#endif  // JSON_NO_IO
+
+// General-purpose iterator-based adapter. It might not be as fast as
+// theoretically possible for some containers, but it is extremely versatile.
+template<typename IteratorType>
+class iterator_input_adapter
+{
+  public:
+    using char_type = typename std::iterator_traits<IteratorType>::value_type;
+
+    iterator_input_adapter(IteratorType first, IteratorType last)
+        : current(std::move(first)), end(std::move(last))
+    {}
+
+    typename std::char_traits<char_type>::int_type get_character()
+    {
+        if (JSON_HEDLEY_LIKELY(current != end))
+        {
+            auto result = std::char_traits<char_type>::to_int_type(*current);
+            std::advance(current, 1);
+            return result;
+        }
+
+        return std::char_traits<char_type>::eof();
+    }
+
+  private:
+    IteratorType current;
+    IteratorType end;
+
+    template<typename BaseInputAdapter, size_t T>
+    friend struct wide_string_input_helper;
+
+    bool empty() const
+    {
+        return current == end;
+    }
+};
+
+
+template<typename BaseInputAdapter, size_t T>
+struct wide_string_input_helper;
+
+template<typename BaseInputAdapter>
+struct wide_string_input_helper<BaseInputAdapter, 4>
+{
+    // UTF-32
+    static void fill_buffer(BaseInputAdapter& input,
+                            std::array<std::char_traits<char>::int_type, 4>& utf8_bytes,
+                            size_t& utf8_bytes_index,
+                            size_t& utf8_bytes_filled)
+    {
+        utf8_bytes_index = 0;
+
+        if (JSON_HEDLEY_UNLIKELY(input.empty()))
+        {
+            utf8_bytes[0] = std::char_traits<char>::eof();
+            utf8_bytes_filled = 1;
+        }
+        else
+        {
+            // get the current character
+            const auto wc = input.get_character();
+
+            // UTF-32 to UTF-8 encoding
+            if (wc < 0x80)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
+                utf8_bytes_filled = 1;
+            }
+            else if (wc <= 0x7FF)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xC0u | ((static_cast<unsigned int>(wc) >> 6u) & 0x1Fu));
+                utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | (static_cast<unsigned int>(wc) & 0x3Fu));
+                utf8_bytes_filled = 2;
+            }
+            else if (wc <= 0xFFFF)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xE0u | ((static_cast<unsigned int>(wc) >> 12u) & 0x0Fu));
+                utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((static_cast<unsigned int>(wc) >> 6u) & 0x3Fu));
+                utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | (static_cast<unsigned int>(wc) & 0x3Fu));
+                utf8_bytes_filled = 3;
+            }
+            else if (wc <= 0x10FFFF)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xF0u | ((static_cast<unsigned int>(wc) >> 18u) & 0x07u));
+                utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((static_cast<unsigned int>(wc) >> 12u) & 0x3Fu));
+                utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | ((static_cast<unsigned int>(wc) >> 6u) & 0x3Fu));
+                utf8_bytes[3] = static_cast<std::char_traits<char>::int_type>(0x80u | (static_cast<unsigned int>(wc) & 0x3Fu));
+                utf8_bytes_filled = 4;
+            }
+            else
+            {
+                // unknown character
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
+                utf8_bytes_filled = 1;
+            }
+        }
+    }
+};
+
+template<typename BaseInputAdapter>
+struct wide_string_input_helper<BaseInputAdapter, 2>
+{
+    // UTF-16
+    static void fill_buffer(BaseInputAdapter& input,
+                            std::array<std::char_traits<char>::int_type, 4>& utf8_bytes,
+                            size_t& utf8_bytes_index,
+                            size_t& utf8_bytes_filled)
+    {
+        utf8_bytes_index = 0;
+
+        if (JSON_HEDLEY_UNLIKELY(input.empty()))
+        {
+            utf8_bytes[0] = std::char_traits<char>::eof();
+            utf8_bytes_filled = 1;
+        }
+        else
+        {
+            // get the current character
+            const auto wc = input.get_character();
+
+            // UTF-16 to UTF-8 encoding
+            if (wc < 0x80)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
+                utf8_bytes_filled = 1;
+            }
+            else if (wc <= 0x7FF)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xC0u | ((static_cast<unsigned int>(wc) >> 6u)));
+                utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | (static_cast<unsigned int>(wc) & 0x3Fu));
+                utf8_bytes_filled = 2;
+            }
+            else if (0xD800 > wc || wc >= 0xE000)
+            {
+                utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xE0u | ((static_cast<unsigned int>(wc) >> 12u)));
+                utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((static_cast<unsigned int>(wc) >> 6u) & 0x3Fu));
+                utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | (static_cast<unsigned int>(wc) & 0x3Fu));
+                utf8_bytes_filled = 3;
+            }
+            else
+            {
+                if (JSON_HEDLEY_UNLIKELY(!input.empty()))
+                {
+                    const auto wc2 = static_cast<unsigned int>(input.get_character());
+                    const auto charcode = 0x10000u + (((static_cast<unsigned int>(wc) & 0x3FFu) << 10u) | (wc2 & 0x3FFu));
+                    utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xF0u | (charcode >> 18u));
+                    utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((charcode >> 12u) & 0x3Fu));
+                    utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | ((charcode >> 6u) & 0x3Fu));
+                    utf8_bytes[3] = static_cast<std::char_traits<char>::int_type>(0x80u | (charcode & 0x3Fu));
+                    utf8_bytes_filled = 4;
+                }
+                else
+                {
+                    utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
+                    utf8_bytes_filled = 1;
+                }
+            }
+        }
+    }
+};
+
+// Wraps another input apdater to convert wide character types into individual bytes.
+template<typename BaseInputAdapter, typename WideCharType>
+class wide_string_input_adapter
+{
+  public:
+    using char_type = char;
+
+    wide_string_input_adapter(BaseInputAdapter base)
+        : base_adapter(base) {}
+
+    typename std::char_traits<char>::int_type get_character() noexcept
+    {
+        // check if buffer needs to be filled
+        if (utf8_bytes_index == utf8_bytes_filled)
+        {
+            fill_buffer<sizeof(WideCharType)>();
+
+            JSON_ASSERT(utf8_bytes_filled > 0);
+            JSON_ASSERT(utf8_bytes_index == 0);
+        }
+
+        // use buffer
+        JSON_ASSERT(utf8_bytes_filled > 0);
+        JSON_ASSERT(utf8_bytes_index < utf8_bytes_filled);
+        return utf8_bytes[utf8_bytes_index++];
+    }
+
+  private:
+    BaseInputAdapter base_adapter;
+
+    template<size_t T>
+    void fill_buffer()
+    {
+        wide_string_input_helper<BaseInputAdapter, T>::fill_buffer(base_adapter, utf8_bytes, utf8_bytes_index, utf8_bytes_filled);
+    }
+
+    /// a buffer for UTF-8 bytes
+    std::array<std::char_traits<char>::int_type, 4> utf8_bytes = {{0, 0, 0, 0}};
+
+    /// index to the utf8_codes array for the next valid byte
+    std::size_t utf8_bytes_index = 0;
+    /// number of valid bytes in the utf8_codes array
+    std::size_t utf8_bytes_filled = 0;
+};
+
+
+template<typename IteratorType, typename Enable = void>
+struct iterator_input_adapter_factory
+{
+    using iterator_type = IteratorType;
+    using char_type = typename std::iterator_traits<iterator_type>::value_type;
+    using adapter_type = iterator_input_adapter<iterator_type>;
+
+    static adapter_type create(IteratorType first, IteratorType last)
+    {
+        return adapter_type(std::move(first), std::move(last));
+    }
+};
+
+template<typename T>
+struct is_iterator_of_multibyte
+{
+    using value_type = typename std::iterator_traits<T>::value_type;
+    enum
+    {
+        value = sizeof(value_type) > 1
+    };
+};
+
+template<typename IteratorType>
+struct iterator_input_adapter_factory<IteratorType, enable_if_t<is_iterator_of_multibyte<IteratorType>::value>>
+{
+    using iterator_type = IteratorType;
+    using char_type = typename std::iterator_traits<iterator_type>::value_type;
+    using base_adapter_type = iterator_input_adapter<iterator_type>;
+    using adapter_type = wide_string_input_adapter<base_adapter_type, char_type>;
+
+    static adapter_type create(IteratorType first, IteratorType last)
+    {
+        return adapter_type(base_adapter_type(std::move(first), std::move(last)));
+    }
+};
+
+// General purpose iterator-based input
+template<typename IteratorType>
+typename iterator_input_adapter_factory<IteratorType>::adapter_type input_adapter(IteratorType first, IteratorType last)
+{
+    using factory_type = iterator_input_adapter_factory<IteratorType>;
+    return factory_type::create(first, last);
+}
+
+// Convenience shorthand from container to iterator
+// Enables ADL on begin(container) and end(container)
+// Encloses the using declarations in namespace for not to leak them to outside scope
+
+namespace container_input_adapter_factory_impl
+{
+
+using std::begin;
+using std::end;
+
+template<typename ContainerType, typename Enable = void>
+struct container_input_adapter_factory {};
+
+template<typename ContainerType>
+struct container_input_adapter_factory< ContainerType,
+       void_t<decltype(begin(std::declval<ContainerType>()), end(std::declval<ContainerType>()))>>
+       {
+           using adapter_type = decltype(input_adapter(begin(std::declval<ContainerType>()), end(std::declval<ContainerType>())));
+
+           static adapter_type create(const ContainerType& container)
+{
+    return input_adapter(begin(container), end(container));
+}
+       };
+
+} // namespace container_input_adapter_factory_impl
+
+template<typename ContainerType>
+typename container_input_adapter_factory_impl::container_input_adapter_factory<ContainerType>::adapter_type input_adapter(const ContainerType& container)
+{
+    return container_input_adapter_factory_impl::container_input_adapter_factory<ContainerType>::create(container);
+}
+
+#ifndef JSON_NO_IO
+// Special cases with fast paths
+inline file_input_adapter input_adapter(std::FILE* file)
+{
+    return file_input_adapter(file);
+}
+
+inline input_stream_adapter input_adapter(std::istream& stream)
+{
+    return input_stream_adapter(stream);
+}
+
+inline input_stream_adapter input_adapter(std::istream&& stream)
+{
+    return input_stream_adapter(stream);
+}
+#endif  // JSON_NO_IO
+
+using contiguous_bytes_input_adapter = decltype(input_adapter(std::declval<const char*>(), std::declval<const char*>()));
+
+// Null-delimited strings, and the like.
+template < typename CharT,
+           typename std::enable_if <
+               std::is_pointer<CharT>::value&&
+               !std::is_array<CharT>::value&&
+               std::is_integral<typename std::remove_pointer<CharT>::type>::value&&
+               sizeof(typename std::remove_pointer<CharT>::type) == 1,
+               int >::type = 0 >
+contiguous_bytes_input_adapter input_adapter(CharT b)
+{
+    auto length = std::strlen(reinterpret_cast<const char*>(b));
+    const auto* ptr = reinterpret_cast<const char*>(b);
+    return input_adapter(ptr, ptr + length);
+}
+
+template<typename T, std::size_t N>
+auto input_adapter(T (&array)[N]) -> decltype(input_adapter(array, array + N)) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+{
+    return input_adapter(array, array + N);
+}
+
+// This class only handles inputs of input_buffer_adapter type.
+// It's required so that expressions like {ptr, len} can be implicitely casted
+// to the correct adapter.
+class span_input_adapter
+{
+  public:
+    template < typename CharT,
+               typename std::enable_if <
+                   std::is_pointer<CharT>::value&&
+                   std::is_integral<typename std::remove_pointer<CharT>::type>::value&&
+                   sizeof(typename std::remove_pointer<CharT>::type) == 1,
+                   int >::type = 0 >
+    span_input_adapter(CharT b, std::size_t l)
+        : ia(reinterpret_cast<const char*>(b), reinterpret_cast<const char*>(b) + l) {}
+
+    template<class IteratorType,
+             typename std::enable_if<
+                 std::is_same<typename iterator_traits<IteratorType>::iterator_category, std::random_access_iterator_tag>::value,
+                 int>::type = 0>
+    span_input_adapter(IteratorType first, IteratorType last)
+        : ia(input_adapter(first, last)) {}
+
+    contiguous_bytes_input_adapter&& get()
+    {
+        return std::move(ia); // NOLINT(hicpp-move-const-arg,performance-move-const-arg)
+    }
+
+  private:
+    contiguous_bytes_input_adapter ia;
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/input/json_sax.hpp>
+
+
+#include <cstddef>
+#include <string> // string
+#include <utility> // move
+#include <vector> // vector
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+
+/*!
+@brief SAX interface
+
+This class describes the SAX interface used by @ref nlohmann::json::sax_parse.
+Each function is called in different situations while the input is parsed. The
+boolean return value informs the parser whether to continue processing the
+input.
+*/
+template<typename BasicJsonType>
+struct json_sax
+{
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+
+    /*!
+    @brief a null value was read
+    @return whether parsing should proceed
+    */
+    virtual bool null() = 0;
+
+    /*!
+    @brief a boolean value was read
+    @param[in] val  boolean value
+    @return whether parsing should proceed
+    */
+    virtual bool boolean(bool val) = 0;
+
+    /*!
+    @brief an integer number was read
+    @param[in] val  integer value
+    @return whether parsing should proceed
+    */
+    virtual bool number_integer(number_integer_t val) = 0;
+
+    /*!
+    @brief an unsigned integer number was read
+    @param[in] val  unsigned integer value
+    @return whether parsing should proceed
+    */
+    virtual bool number_unsigned(number_unsigned_t val) = 0;
+
+    /*!
+    @brief an floating-point number was read
+    @param[in] val  floating-point value
+    @param[in] s    raw token value
+    @return whether parsing should proceed
+    */
+    virtual bool number_float(number_float_t val, const string_t& s) = 0;
+
+    /*!
+    @brief a string was read
+    @param[in] val  string value
+    @return whether parsing should proceed
+    @note It is safe to move the passed string.
+    */
+    virtual bool string(string_t& val) = 0;
+
+    /*!
+    @brief a binary string was read
+    @param[in] val  binary value
+    @return whether parsing should proceed
+    @note It is safe to move the passed binary.
+    */
+    virtual bool binary(binary_t& val) = 0;
+
+    /*!
+    @brief the beginning of an object was read
+    @param[in] elements  number of object elements or -1 if unknown
+    @return whether parsing should proceed
+    @note binary formats may report the number of elements
+    */
+    virtual bool start_object(std::size_t elements) = 0;
+
+    /*!
+    @brief an object key was read
+    @param[in] val  object key
+    @return whether parsing should proceed
+    @note It is safe to move the passed string.
+    */
+    virtual bool key(string_t& val) = 0;
+
+    /*!
+    @brief the end of an object was read
+    @return whether parsing should proceed
+    */
+    virtual bool end_object() = 0;
+
+    /*!
+    @brief the beginning of an array was read
+    @param[in] elements  number of array elements or -1 if unknown
+    @return whether parsing should proceed
+    @note binary formats may report the number of elements
+    */
+    virtual bool start_array(std::size_t elements) = 0;
+
+    /*!
+    @brief the end of an array was read
+    @return whether parsing should proceed
+    */
+    virtual bool end_array() = 0;
+
+    /*!
+    @brief a parse error occurred
+    @param[in] position    the position in the input where the error occurs
+    @param[in] last_token  the last read token
+    @param[in] ex          an exception object describing the error
+    @return whether parsing should proceed (must return false)
+    */
+    virtual bool parse_error(std::size_t position,
+                             const std::string& last_token,
+                             const detail::exception& ex) = 0;
+
+    json_sax() = default;
+    json_sax(const json_sax&) = default;
+    json_sax(json_sax&&) noexcept = default;
+    json_sax& operator=(const json_sax&) = default;
+    json_sax& operator=(json_sax&&) noexcept = default;
+    virtual ~json_sax() = default;
+};
+
+
+namespace detail
+{
+/*!
+@brief SAX implementation to create a JSON value from SAX events
+
+This class implements the @ref json_sax interface and processes the SAX events
+to create a JSON value which makes it basically a DOM parser. The structure or
+hierarchy of the JSON value is managed by the stack `ref_stack` which contains
+a pointer to the respective array or object for each recursion depth.
+
+After successful parsing, the value that is passed by reference to the
+constructor contains the parsed value.
+
+@tparam BasicJsonType  the JSON type
+*/
+template<typename BasicJsonType>
+class json_sax_dom_parser
+{
+  public:
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+
+    /*!
+    @param[in,out] r  reference to a JSON value that is manipulated while
+                       parsing
+    @param[in] allow_exceptions_  whether parse errors yield exceptions
+    */
+    explicit json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true)
+        : root(r), allow_exceptions(allow_exceptions_)
+    {}
+
+    // make class move-only
+    json_sax_dom_parser(const json_sax_dom_parser&) = delete;
+    json_sax_dom_parser(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    json_sax_dom_parser& operator=(const json_sax_dom_parser&) = delete;
+    json_sax_dom_parser& operator=(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    ~json_sax_dom_parser() = default;
+
+    bool null()
+    {
+        handle_value(nullptr);
+        return true;
+    }
+
+    bool boolean(bool val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool number_integer(number_integer_t val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool number_unsigned(number_unsigned_t val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool number_float(number_float_t val, const string_t& /*unused*/)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool string(string_t& val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool binary(binary_t& val)
+    {
+        handle_value(std::move(val));
+        return true;
+    }
+
+    bool start_object(std::size_t len)
+    {
+        ref_stack.push_back(handle_value(BasicJsonType::value_t::object));
+
+        if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size()))
+        {
+            JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back()));
+        }
+
+        return true;
+    }
+
+    bool key(string_t& val)
+    {
+        // add null at given key and store the reference for later
+        object_element = &(ref_stack.back()->m_value.object->operator[](val));
+        return true;
+    }
+
+    bool end_object()
+    {
+        ref_stack.back()->set_parents();
+        ref_stack.pop_back();
+        return true;
+    }
+
+    bool start_array(std::size_t len)
+    {
+        ref_stack.push_back(handle_value(BasicJsonType::value_t::array));
+
+        if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size()))
+        {
+            JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back()));
+        }
+
+        return true;
+    }
+
+    bool end_array()
+    {
+        ref_stack.back()->set_parents();
+        ref_stack.pop_back();
+        return true;
+    }
+
+    template<class Exception>
+    bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/,
+                     const Exception& ex)
+    {
+        errored = true;
+        static_cast<void>(ex);
+        if (allow_exceptions)
+        {
+            JSON_THROW(ex);
+        }
+        return false;
+    }
+
+    constexpr bool is_errored() const
+    {
+        return errored;
+    }
+
+  private:
+    /*!
+    @invariant If the ref stack is empty, then the passed value will be the new
+               root.
+    @invariant If the ref stack contains a value, then it is an array or an
+               object to which we can add elements
+    */
+    template<typename Value>
+    JSON_HEDLEY_RETURNS_NON_NULL
+    BasicJsonType* handle_value(Value&& v)
+    {
+        if (ref_stack.empty())
+        {
+            root = BasicJsonType(std::forward<Value>(v));
+            return &root;
+        }
+
+        JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object());
+
+        if (ref_stack.back()->is_array())
+        {
+            ref_stack.back()->m_value.array->emplace_back(std::forward<Value>(v));
+            return &(ref_stack.back()->m_value.array->back());
+        }
+
+        JSON_ASSERT(ref_stack.back()->is_object());
+        JSON_ASSERT(object_element);
+        *object_element = BasicJsonType(std::forward<Value>(v));
+        return object_element;
+    }
+
+    /// the parsed JSON value
+    BasicJsonType& root;
+    /// stack to model hierarchy of values
+    std::vector<BasicJsonType*> ref_stack {};
+    /// helper to hold the reference for the next object element
+    BasicJsonType* object_element = nullptr;
+    /// whether a syntax error occurred
+    bool errored = false;
+    /// whether to throw exceptions in case of errors
+    const bool allow_exceptions = true;
+};
+
+template<typename BasicJsonType>
+class json_sax_dom_callback_parser
+{
+  public:
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+    using parser_callback_t = typename BasicJsonType::parser_callback_t;
+    using parse_event_t = typename BasicJsonType::parse_event_t;
+
+    json_sax_dom_callback_parser(BasicJsonType& r,
+                                 const parser_callback_t cb,
+                                 const bool allow_exceptions_ = true)
+        : root(r), callback(cb), allow_exceptions(allow_exceptions_)
+    {
+        keep_stack.push_back(true);
+    }
+
+    // make class move-only
+    json_sax_dom_callback_parser(const json_sax_dom_callback_parser&) = delete;
+    json_sax_dom_callback_parser(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    json_sax_dom_callback_parser& operator=(const json_sax_dom_callback_parser&) = delete;
+    json_sax_dom_callback_parser& operator=(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    ~json_sax_dom_callback_parser() = default;
+
+    bool null()
+    {
+        handle_value(nullptr);
+        return true;
+    }
+
+    bool boolean(bool val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool number_integer(number_integer_t val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool number_unsigned(number_unsigned_t val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool number_float(number_float_t val, const string_t& /*unused*/)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool string(string_t& val)
+    {
+        handle_value(val);
+        return true;
+    }
+
+    bool binary(binary_t& val)
+    {
+        handle_value(std::move(val));
+        return true;
+    }
+
+    bool start_object(std::size_t len)
+    {
+        // check callback for object start
+        const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::object_start, discarded);
+        keep_stack.push_back(keep);
+
+        auto val = handle_value(BasicJsonType::value_t::object, true);
+        ref_stack.push_back(val.second);
+
+        // check object limit
+        if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size()))
+        {
+            JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back()));
+        }
+
+        return true;
+    }
+
+    bool key(string_t& val)
+    {
+        BasicJsonType k = BasicJsonType(val);
+
+        // check callback for key
+        const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::key, k);
+        key_keep_stack.push_back(keep);
+
+        // add discarded value at given key and store the reference for later
+        if (keep && ref_stack.back())
+        {
+            object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded);
+        }
+
+        return true;
+    }
+
+    bool end_object()
+    {
+        if (ref_stack.back())
+        {
+            if (!callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back()))
+            {
+                // discard object
+                *ref_stack.back() = discarded;
+            }
+            else
+            {
+                ref_stack.back()->set_parents();
+            }
+        }
+
+        JSON_ASSERT(!ref_stack.empty());
+        JSON_ASSERT(!keep_stack.empty());
+        ref_stack.pop_back();
+        keep_stack.pop_back();
+
+        if (!ref_stack.empty() && ref_stack.back() && ref_stack.back()->is_structured())
+        {
+            // remove discarded value
+            for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it)
+            {
+                if (it->is_discarded())
+                {
+                    ref_stack.back()->erase(it);
+                    break;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    bool start_array(std::size_t len)
+    {
+        const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::array_start, discarded);
+        keep_stack.push_back(keep);
+
+        auto val = handle_value(BasicJsonType::value_t::array, true);
+        ref_stack.push_back(val.second);
+
+        // check array limit
+        if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size()))
+        {
+            JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back()));
+        }
+
+        return true;
+    }
+
+    bool end_array()
+    {
+        bool keep = true;
+
+        if (ref_stack.back())
+        {
+            keep = callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back());
+            if (keep)
+            {
+                ref_stack.back()->set_parents();
+            }
+            else
+            {
+                // discard array
+                *ref_stack.back() = discarded;
+            }
+        }
+
+        JSON_ASSERT(!ref_stack.empty());
+        JSON_ASSERT(!keep_stack.empty());
+        ref_stack.pop_back();
+        keep_stack.pop_back();
+
+        // remove discarded value
+        if (!keep && !ref_stack.empty() && ref_stack.back()->is_array())
+        {
+            ref_stack.back()->m_value.array->pop_back();
+        }
+
+        return true;
+    }
+
+    template<class Exception>
+    bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/,
+                     const Exception& ex)
+    {
+        errored = true;
+        static_cast<void>(ex);
+        if (allow_exceptions)
+        {
+            JSON_THROW(ex);
+        }
+        return false;
+    }
+
+    constexpr bool is_errored() const
+    {
+        return errored;
+    }
+
+  private:
+    /*!
+    @param[in] v  value to add to the JSON value we build during parsing
+    @param[in] skip_callback  whether we should skip calling the callback
+               function; this is required after start_array() and
+               start_object() SAX events, because otherwise we would call the
+               callback function with an empty array or object, respectively.
+
+    @invariant If the ref stack is empty, then the passed value will be the new
+               root.
+    @invariant If the ref stack contains a value, then it is an array or an
+               object to which we can add elements
+
+    @return pair of boolean (whether value should be kept) and pointer (to the
+            passed value in the ref_stack hierarchy; nullptr if not kept)
+    */
+    template<typename Value>
+    std::pair<bool, BasicJsonType*> handle_value(Value&& v, const bool skip_callback = false)
+    {
+        JSON_ASSERT(!keep_stack.empty());
+
+        // do not handle this value if we know it would be added to a discarded
+        // container
+        if (!keep_stack.back())
+        {
+            return {false, nullptr};
+        }
+
+        // create value
+        auto value = BasicJsonType(std::forward<Value>(v));
+
+        // check callback
+        const bool keep = skip_callback || callback(static_cast<int>(ref_stack.size()), parse_event_t::value, value);
+
+        // do not handle this value if we just learnt it shall be discarded
+        if (!keep)
+        {
+            return {false, nullptr};
+        }
+
+        if (ref_stack.empty())
+        {
+            root = std::move(value);
+            return {true, &root};
+        }
+
+        // skip this value if we already decided to skip the parent
+        // (https://github.com/nlohmann/json/issues/971#issuecomment-413678360)
+        if (!ref_stack.back())
+        {
+            return {false, nullptr};
+        }
+
+        // we now only expect arrays and objects
+        JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object());
+
+        // array
+        if (ref_stack.back()->is_array())
+        {
+            ref_stack.back()->m_value.array->emplace_back(std::move(value));
+            return {true, &(ref_stack.back()->m_value.array->back())};
+        }
+
+        // object
+        JSON_ASSERT(ref_stack.back()->is_object());
+        // check if we should store an element for the current key
+        JSON_ASSERT(!key_keep_stack.empty());
+        const bool store_element = key_keep_stack.back();
+        key_keep_stack.pop_back();
+
+        if (!store_element)
+        {
+            return {false, nullptr};
+        }
+
+        JSON_ASSERT(object_element);
+        *object_element = std::move(value);
+        return {true, object_element};
+    }
+
+    /// the parsed JSON value
+    BasicJsonType& root;
+    /// stack to model hierarchy of values
+    std::vector<BasicJsonType*> ref_stack {};
+    /// stack to manage which values to keep
+    std::vector<bool> keep_stack {};
+    /// stack to manage which object keys to keep
+    std::vector<bool> key_keep_stack {};
+    /// helper to hold the reference for the next object element
+    BasicJsonType* object_element = nullptr;
+    /// whether a syntax error occurred
+    bool errored = false;
+    /// callback function
+    const parser_callback_t callback = nullptr;
+    /// whether to throw exceptions in case of errors
+    const bool allow_exceptions = true;
+    /// a discarded value for the callback
+    BasicJsonType discarded = BasicJsonType::value_t::discarded;
+};
+
+template<typename BasicJsonType>
+class json_sax_acceptor
+{
+  public:
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+
+    bool null()
+    {
+        return true;
+    }
+
+    bool boolean(bool /*unused*/)
+    {
+        return true;
+    }
+
+    bool number_integer(number_integer_t /*unused*/)
+    {
+        return true;
+    }
+
+    bool number_unsigned(number_unsigned_t /*unused*/)
+    {
+        return true;
+    }
+
+    bool number_float(number_float_t /*unused*/, const string_t& /*unused*/)
+    {
+        return true;
+    }
+
+    bool string(string_t& /*unused*/)
+    {
+        return true;
+    }
+
+    bool binary(binary_t& /*unused*/)
+    {
+        return true;
+    }
+
+    bool start_object(std::size_t /*unused*/ = std::size_t(-1))
+    {
+        return true;
+    }
+
+    bool key(string_t& /*unused*/)
+    {
+        return true;
+    }
+
+    bool end_object()
+    {
+        return true;
+    }
+
+    bool start_array(std::size_t /*unused*/ = std::size_t(-1))
+    {
+        return true;
+    }
+
+    bool end_array()
+    {
+        return true;
+    }
+
+    bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const detail::exception& /*unused*/)
+    {
+        return false;
+    }
+};
+}  // namespace detail
+
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/input/lexer.hpp>
+
+
+#include <array> // array
+#include <clocale> // localeconv
+#include <cstddef> // size_t
+#include <cstdio> // snprintf
+#include <cstdlib> // strtof, strtod, strtold, strtoll, strtoull
+#include <initializer_list> // initializer_list
+#include <string> // char_traits, string
+#include <utility> // move
+#include <vector> // vector
+
+// #include <nlohmann/detail/input/input_adapters.hpp>
+
+// #include <nlohmann/detail/input/position_t.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+///////////
+// lexer //
+///////////
+
+template<typename BasicJsonType>
+class lexer_base
+{
+  public:
+    /// token types for the parser
+    enum class token_type
+    {
+        uninitialized,    ///< indicating the scanner is uninitialized
+        literal_true,     ///< the `true` literal
+        literal_false,    ///< the `false` literal
+        literal_null,     ///< the `null` literal
+        value_string,     ///< a string -- use get_string() for actual value
+        value_unsigned,   ///< an unsigned integer -- use get_number_unsigned() for actual value
+        value_integer,    ///< a signed integer -- use get_number_integer() for actual value
+        value_float,      ///< an floating point number -- use get_number_float() for actual value
+        begin_array,      ///< the character for array begin `[`
+        begin_object,     ///< the character for object begin `{`
+        end_array,        ///< the character for array end `]`
+        end_object,       ///< the character for object end `}`
+        name_separator,   ///< the name separator `:`
+        value_separator,  ///< the value separator `,`
+        parse_error,      ///< indicating a parse error
+        end_of_input,     ///< indicating the end of the input buffer
+        literal_or_value  ///< a literal or the begin of a value (only for diagnostics)
+    };
+
+    /// return name of values of type token_type (only used for errors)
+    JSON_HEDLEY_RETURNS_NON_NULL
+    JSON_HEDLEY_CONST
+    static const char* token_type_name(const token_type t) noexcept
+    {
+        switch (t)
+        {
+            case token_type::uninitialized:
+                return "<uninitialized>";
+            case token_type::literal_true:
+                return "true literal";
+            case token_type::literal_false:
+                return "false literal";
+            case token_type::literal_null:
+                return "null literal";
+            case token_type::value_string:
+                return "string literal";
+            case token_type::value_unsigned:
+            case token_type::value_integer:
+            case token_type::value_float:
+                return "number literal";
+            case token_type::begin_array:
+                return "'['";
+            case token_type::begin_object:
+                return "'{'";
+            case token_type::end_array:
+                return "']'";
+            case token_type::end_object:
+                return "'}'";
+            case token_type::name_separator:
+                return "':'";
+            case token_type::value_separator:
+                return "','";
+            case token_type::parse_error:
+                return "<parse error>";
+            case token_type::end_of_input:
+                return "end of input";
+            case token_type::literal_or_value:
+                return "'[', '{', or a literal";
+            // LCOV_EXCL_START
+            default: // catch non-enum values
+                return "unknown token";
+                // LCOV_EXCL_STOP
+        }
+    }
+};
+/*!
+@brief lexical analysis
+
+This class organizes the lexical analysis during JSON deserialization.
+*/
+template<typename BasicJsonType, typename InputAdapterType>
+class lexer : public lexer_base<BasicJsonType>
+{
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using char_type = typename InputAdapterType::char_type;
+    using char_int_type = typename std::char_traits<char_type>::int_type;
+
+  public:
+    using token_type = typename lexer_base<BasicJsonType>::token_type;
+
+    explicit lexer(InputAdapterType&& adapter, bool ignore_comments_ = false) noexcept
+        : ia(std::move(adapter))
+        , ignore_comments(ignore_comments_)
+        , decimal_point_char(static_cast<char_int_type>(get_decimal_point()))
+    {}
+
+    // delete because of pointer members
+    lexer(const lexer&) = delete;
+    lexer(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    lexer& operator=(lexer&) = delete;
+    lexer& operator=(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    ~lexer() = default;
+
+  private:
+    /////////////////////
+    // locales
+    /////////////////////
+
+    /// return the locale-dependent decimal point
+    JSON_HEDLEY_PURE
+    static char get_decimal_point() noexcept
+    {
+        const auto* loc = localeconv();
+        JSON_ASSERT(loc != nullptr);
+        return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point);
+    }
+
+    /////////////////////
+    // scan functions
+    /////////////////////
+
+    /*!
+    @brief get codepoint from 4 hex characters following `\u`
+
+    For input "\u c1 c2 c3 c4" the codepoint is:
+      (c1 * 0x1000) + (c2 * 0x0100) + (c3 * 0x0010) + c4
+    = (c1 << 12) + (c2 << 8) + (c3 << 4) + (c4 << 0)
+
+    Furthermore, the possible characters '0'..'9', 'A'..'F', and 'a'..'f'
+    must be converted to the integers 0x0..0x9, 0xA..0xF, 0xA..0xF, resp. The
+    conversion is done by subtracting the offset (0x30, 0x37, and 0x57)
+    between the ASCII value of the character and the desired integer value.
+
+    @return codepoint (0x0000..0xFFFF) or -1 in case of an error (e.g. EOF or
+            non-hex character)
+    */
+    int get_codepoint()
+    {
+        // this function only makes sense after reading `\u`
+        JSON_ASSERT(current == 'u');
+        int codepoint = 0;
+
+        const auto factors = { 12u, 8u, 4u, 0u };
+        for (const auto factor : factors)
+        {
+            get();
+
+            if (current >= '0' && current <= '9')
+            {
+                codepoint += static_cast<int>((static_cast<unsigned int>(current) - 0x30u) << factor);
+            }
+            else if (current >= 'A' && current <= 'F')
+            {
+                codepoint += static_cast<int>((static_cast<unsigned int>(current) - 0x37u) << factor);
+            }
+            else if (current >= 'a' && current <= 'f')
+            {
+                codepoint += static_cast<int>((static_cast<unsigned int>(current) - 0x57u) << factor);
+            }
+            else
+            {
+                return -1;
+            }
+        }
+
+        JSON_ASSERT(0x0000 <= codepoint && codepoint <= 0xFFFF);
+        return codepoint;
+    }
+
+    /*!
+    @brief check if the next byte(s) are inside a given range
+
+    Adds the current byte and, for each passed range, reads a new byte and
+    checks if it is inside the range. If a violation was detected, set up an
+    error message and return false. Otherwise, return true.
+
+    @param[in] ranges  list of integers; interpreted as list of pairs of
+                       inclusive lower and upper bound, respectively
+
+    @pre The passed list @a ranges must have 2, 4, or 6 elements; that is,
+         1, 2, or 3 pairs. This precondition is enforced by an assertion.
+
+    @return true if and only if no range violation was detected
+    */
+    bool next_byte_in_range(std::initializer_list<char_int_type> ranges)
+    {
+        JSON_ASSERT(ranges.size() == 2 || ranges.size() == 4 || ranges.size() == 6);
+        add(current);
+
+        for (auto range = ranges.begin(); range != ranges.end(); ++range)
+        {
+            get();
+            if (JSON_HEDLEY_LIKELY(*range <= current && current <= *(++range)))
+            {
+                add(current);
+            }
+            else
+            {
+                error_message = "invalid string: ill-formed UTF-8 byte";
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /*!
+    @brief scan a string literal
+
+    This function scans a string according to Sect. 7 of RFC 8259. While
+    scanning, bytes are escaped and copied into buffer token_buffer. Then the
+    function returns successfully, token_buffer is *not* null-terminated (as it
+    may contain \0 bytes), and token_buffer.size() is the number of bytes in the
+    string.
+
+    @return token_type::value_string if string could be successfully scanned,
+            token_type::parse_error otherwise
+
+    @note In case of errors, variable error_message contains a textual
+          description.
+    */
+    token_type scan_string()
+    {
+        // reset token_buffer (ignore opening quote)
+        reset();
+
+        // we entered the function by reading an open quote
+        JSON_ASSERT(current == '\"');
+
+        while (true)
+        {
+            // get next character
+            switch (get())
+            {
+                // end of file while parsing string
+                case std::char_traits<char_type>::eof():
+                {
+                    error_message = "invalid string: missing closing quote";
+                    return token_type::parse_error;
+                }
+
+                // closing quote
+                case '\"':
+                {
+                    return token_type::value_string;
+                }
+
+                // escapes
+                case '\\':
+                {
+                    switch (get())
+                    {
+                        // quotation mark
+                        case '\"':
+                            add('\"');
+                            break;
+                        // reverse solidus
+                        case '\\':
+                            add('\\');
+                            break;
+                        // solidus
+                        case '/':
+                            add('/');
+                            break;
+                        // backspace
+                        case 'b':
+                            add('\b');
+                            break;
+                        // form feed
+                        case 'f':
+                            add('\f');
+                            break;
+                        // line feed
+                        case 'n':
+                            add('\n');
+                            break;
+                        // carriage return
+                        case 'r':
+                            add('\r');
+                            break;
+                        // tab
+                        case 't':
+                            add('\t');
+                            break;
+
+                        // unicode escapes
+                        case 'u':
+                        {
+                            const int codepoint1 = get_codepoint();
+                            int codepoint = codepoint1; // start with codepoint1
+
+                            if (JSON_HEDLEY_UNLIKELY(codepoint1 == -1))
+                            {
+                                error_message = "invalid string: '\\u' must be followed by 4 hex digits";
+                                return token_type::parse_error;
+                            }
+
+                            // check if code point is a high surrogate
+                            if (0xD800 <= codepoint1 && codepoint1 <= 0xDBFF)
+                            {
+                                // expect next \uxxxx entry
+                                if (JSON_HEDLEY_LIKELY(get() == '\\' && get() == 'u'))
+                                {
+                                    const int codepoint2 = get_codepoint();
+
+                                    if (JSON_HEDLEY_UNLIKELY(codepoint2 == -1))
+                                    {
+                                        error_message = "invalid string: '\\u' must be followed by 4 hex digits";
+                                        return token_type::parse_error;
+                                    }
+
+                                    // check if codepoint2 is a low surrogate
+                                    if (JSON_HEDLEY_LIKELY(0xDC00 <= codepoint2 && codepoint2 <= 0xDFFF))
+                                    {
+                                        // overwrite codepoint
+                                        codepoint = static_cast<int>(
+                                                        // high surrogate occupies the most significant 22 bits
+                                                        (static_cast<unsigned int>(codepoint1) << 10u)
+                                                        // low surrogate occupies the least significant 15 bits
+                                                        + static_cast<unsigned int>(codepoint2)
+                                                        // there is still the 0xD800, 0xDC00 and 0x10000 noise
+                                                        // in the result so we have to subtract with:
+                                                        // (0xD800 << 10) + DC00 - 0x10000 = 0x35FDC00
+                                                        - 0x35FDC00u);
+                                    }
+                                    else
+                                    {
+                                        error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF";
+                                        return token_type::parse_error;
+                                    }
+                                }
+                                else
+                                {
+                                    error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF";
+                                    return token_type::parse_error;
+                                }
+                            }
+                            else
+                            {
+                                if (JSON_HEDLEY_UNLIKELY(0xDC00 <= codepoint1 && codepoint1 <= 0xDFFF))
+                                {
+                                    error_message = "invalid string: surrogate U+DC00..U+DFFF must follow U+D800..U+DBFF";
+                                    return token_type::parse_error;
+                                }
+                            }
+
+                            // result of the above calculation yields a proper codepoint
+                            JSON_ASSERT(0x00 <= codepoint && codepoint <= 0x10FFFF);
+
+                            // translate codepoint into bytes
+                            if (codepoint < 0x80)
+                            {
+                                // 1-byte characters: 0xxxxxxx (ASCII)
+                                add(static_cast<char_int_type>(codepoint));
+                            }
+                            else if (codepoint <= 0x7FF)
+                            {
+                                // 2-byte characters: 110xxxxx 10xxxxxx
+                                add(static_cast<char_int_type>(0xC0u | (static_cast<unsigned int>(codepoint) >> 6u)));
+                                add(static_cast<char_int_type>(0x80u | (static_cast<unsigned int>(codepoint) & 0x3Fu)));
+                            }
+                            else if (codepoint <= 0xFFFF)
+                            {
+                                // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx
+                                add(static_cast<char_int_type>(0xE0u | (static_cast<unsigned int>(codepoint) >> 12u)));
+                                add(static_cast<char_int_type>(0x80u | ((static_cast<unsigned int>(codepoint) >> 6u) & 0x3Fu)));
+                                add(static_cast<char_int_type>(0x80u | (static_cast<unsigned int>(codepoint) & 0x3Fu)));
+                            }
+                            else
+                            {
+                                // 4-byte characters: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+                                add(static_cast<char_int_type>(0xF0u | (static_cast<unsigned int>(codepoint) >> 18u)));
+                                add(static_cast<char_int_type>(0x80u | ((static_cast<unsigned int>(codepoint) >> 12u) & 0x3Fu)));
+                                add(static_cast<char_int_type>(0x80u | ((static_cast<unsigned int>(codepoint) >> 6u) & 0x3Fu)));
+                                add(static_cast<char_int_type>(0x80u | (static_cast<unsigned int>(codepoint) & 0x3Fu)));
+                            }
+
+                            break;
+                        }
+
+                        // other characters after escape
+                        default:
+                            error_message = "invalid string: forbidden character after backslash";
+                            return token_type::parse_error;
+                    }
+
+                    break;
+                }
+
+                // invalid control characters
+                case 0x00:
+                {
+                    error_message = "invalid string: control character U+0000 (NUL) must be escaped to \\u0000";
+                    return token_type::parse_error;
+                }
+
+                case 0x01:
+                {
+                    error_message = "invalid string: control character U+0001 (SOH) must be escaped to \\u0001";
+                    return token_type::parse_error;
+                }
+
+                case 0x02:
+                {
+                    error_message = "invalid string: control character U+0002 (STX) must be escaped to \\u0002";
+                    return token_type::parse_error;
+                }
+
+                case 0x03:
+                {
+                    error_message = "invalid string: control character U+0003 (ETX) must be escaped to \\u0003";
+                    return token_type::parse_error;
+                }
+
+                case 0x04:
+                {
+                    error_message = "invalid string: control character U+0004 (EOT) must be escaped to \\u0004";
+                    return token_type::parse_error;
+                }
+
+                case 0x05:
+                {
+                    error_message = "invalid string: control character U+0005 (ENQ) must be escaped to \\u0005";
+                    return token_type::parse_error;
+                }
+
+                case 0x06:
+                {
+                    error_message = "invalid string: control character U+0006 (ACK) must be escaped to \\u0006";
+                    return token_type::parse_error;
+                }
+
+                case 0x07:
+                {
+                    error_message = "invalid string: control character U+0007 (BEL) must be escaped to \\u0007";
+                    return token_type::parse_error;
+                }
+
+                case 0x08:
+                {
+                    error_message = "invalid string: control character U+0008 (BS) must be escaped to \\u0008 or \\b";
+                    return token_type::parse_error;
+                }
+
+                case 0x09:
+                {
+                    error_message = "invalid string: control character U+0009 (HT) must be escaped to \\u0009 or \\t";
+                    return token_type::parse_error;
+                }
+
+                case 0x0A:
+                {
+                    error_message = "invalid string: control character U+000A (LF) must be escaped to \\u000A or \\n";
+                    return token_type::parse_error;
+                }
+
+                case 0x0B:
+                {
+                    error_message = "invalid string: control character U+000B (VT) must be escaped to \\u000B";
+                    return token_type::parse_error;
+                }
+
+                case 0x0C:
+                {
+                    error_message = "invalid string: control character U+000C (FF) must be escaped to \\u000C or \\f";
+                    return token_type::parse_error;
+                }
+
+                case 0x0D:
+                {
+                    error_message = "invalid string: control character U+000D (CR) must be escaped to \\u000D or \\r";
+                    return token_type::parse_error;
+                }
+
+                case 0x0E:
+                {
+                    error_message = "invalid string: control character U+000E (SO) must be escaped to \\u000E";
+                    return token_type::parse_error;
+                }
+
+                case 0x0F:
+                {
+                    error_message = "invalid string: control character U+000F (SI) must be escaped to \\u000F";
+                    return token_type::parse_error;
+                }
+
+                case 0x10:
+                {
+                    error_message = "invalid string: control character U+0010 (DLE) must be escaped to \\u0010";
+                    return token_type::parse_error;
+                }
+
+                case 0x11:
+                {
+                    error_message = "invalid string: control character U+0011 (DC1) must be escaped to \\u0011";
+                    return token_type::parse_error;
+                }
+
+                case 0x12:
+                {
+                    error_message = "invalid string: control character U+0012 (DC2) must be escaped to \\u0012";
+                    return token_type::parse_error;
+                }
+
+                case 0x13:
+                {
+                    error_message = "invalid string: control character U+0013 (DC3) must be escaped to \\u0013";
+                    return token_type::parse_error;
+                }
+
+                case 0x14:
+                {
+                    error_message = "invalid string: control character U+0014 (DC4) must be escaped to \\u0014";
+                    return token_type::parse_error;
+                }
+
+                case 0x15:
+                {
+                    error_message = "invalid string: control character U+0015 (NAK) must be escaped to \\u0015";
+                    return token_type::parse_error;
+                }
+
+                case 0x16:
+                {
+                    error_message = "invalid string: control character U+0016 (SYN) must be escaped to \\u0016";
+                    return token_type::parse_error;
+                }
+
+                case 0x17:
+                {
+                    error_message = "invalid string: control character U+0017 (ETB) must be escaped to \\u0017";
+                    return token_type::parse_error;
+                }
+
+                case 0x18:
+                {
+                    error_message = "invalid string: control character U+0018 (CAN) must be escaped to \\u0018";
+                    return token_type::parse_error;
+                }
+
+                case 0x19:
+                {
+                    error_message = "invalid string: control character U+0019 (EM) must be escaped to \\u0019";
+                    return token_type::parse_error;
+                }
+
+                case 0x1A:
+                {
+                    error_message = "invalid string: control character U+001A (SUB) must be escaped to \\u001A";
+                    return token_type::parse_error;
+                }
+
+                case 0x1B:
+                {
+                    error_message = "invalid string: control character U+001B (ESC) must be escaped to \\u001B";
+                    return token_type::parse_error;
+                }
+
+                case 0x1C:
+                {
+                    error_message = "invalid string: control character U+001C (FS) must be escaped to \\u001C";
+                    return token_type::parse_error;
+                }
+
+                case 0x1D:
+                {
+                    error_message = "invalid string: control character U+001D (GS) must be escaped to \\u001D";
+                    return token_type::parse_error;
+                }
+
+                case 0x1E:
+                {
+                    error_message = "invalid string: control character U+001E (RS) must be escaped to \\u001E";
+                    return token_type::parse_error;
+                }
+
+                case 0x1F:
+                {
+                    error_message = "invalid string: control character U+001F (US) must be escaped to \\u001F";
+                    return token_type::parse_error;
+                }
+
+                // U+0020..U+007F (except U+0022 (quote) and U+005C (backspace))
+                case 0x20:
+                case 0x21:
+                case 0x23:
+                case 0x24:
+                case 0x25:
+                case 0x26:
+                case 0x27:
+                case 0x28:
+                case 0x29:
+                case 0x2A:
+                case 0x2B:
+                case 0x2C:
+                case 0x2D:
+                case 0x2E:
+                case 0x2F:
+                case 0x30:
+                case 0x31:
+                case 0x32:
+                case 0x33:
+                case 0x34:
+                case 0x35:
+                case 0x36:
+                case 0x37:
+                case 0x38:
+                case 0x39:
+                case 0x3A:
+                case 0x3B:
+                case 0x3C:
+                case 0x3D:
+                case 0x3E:
+                case 0x3F:
+                case 0x40:
+                case 0x41:
+                case 0x42:
+                case 0x43:
+                case 0x44:
+                case 0x45:
+                case 0x46:
+                case 0x47:
+                case 0x48:
+                case 0x49:
+                case 0x4A:
+                case 0x4B:
+                case 0x4C:
+                case 0x4D:
+                case 0x4E:
+                case 0x4F:
+                case 0x50:
+                case 0x51:
+                case 0x52:
+                case 0x53:
+                case 0x54:
+                case 0x55:
+                case 0x56:
+                case 0x57:
+                case 0x58:
+                case 0x59:
+                case 0x5A:
+                case 0x5B:
+                case 0x5D:
+                case 0x5E:
+                case 0x5F:
+                case 0x60:
+                case 0x61:
+                case 0x62:
+                case 0x63:
+                case 0x64:
+                case 0x65:
+                case 0x66:
+                case 0x67:
+                case 0x68:
+                case 0x69:
+                case 0x6A:
+                case 0x6B:
+                case 0x6C:
+                case 0x6D:
+                case 0x6E:
+                case 0x6F:
+                case 0x70:
+                case 0x71:
+                case 0x72:
+                case 0x73:
+                case 0x74:
+                case 0x75:
+                case 0x76:
+                case 0x77:
+                case 0x78:
+                case 0x79:
+                case 0x7A:
+                case 0x7B:
+                case 0x7C:
+                case 0x7D:
+                case 0x7E:
+                case 0x7F:
+                {
+                    add(current);
+                    break;
+                }
+
+                // U+0080..U+07FF: bytes C2..DF 80..BF
+                case 0xC2:
+                case 0xC3:
+                case 0xC4:
+                case 0xC5:
+                case 0xC6:
+                case 0xC7:
+                case 0xC8:
+                case 0xC9:
+                case 0xCA:
+                case 0xCB:
+                case 0xCC:
+                case 0xCD:
+                case 0xCE:
+                case 0xCF:
+                case 0xD0:
+                case 0xD1:
+                case 0xD2:
+                case 0xD3:
+                case 0xD4:
+                case 0xD5:
+                case 0xD6:
+                case 0xD7:
+                case 0xD8:
+                case 0xD9:
+                case 0xDA:
+                case 0xDB:
+                case 0xDC:
+                case 0xDD:
+                case 0xDE:
+                case 0xDF:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!next_byte_in_range({0x80, 0xBF})))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // U+0800..U+0FFF: bytes E0 A0..BF 80..BF
+                case 0xE0:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0xA0, 0xBF, 0x80, 0xBF}))))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // U+1000..U+CFFF: bytes E1..EC 80..BF 80..BF
+                // U+E000..U+FFFF: bytes EE..EF 80..BF 80..BF
+                case 0xE1:
+                case 0xE2:
+                case 0xE3:
+                case 0xE4:
+                case 0xE5:
+                case 0xE6:
+                case 0xE7:
+                case 0xE8:
+                case 0xE9:
+                case 0xEA:
+                case 0xEB:
+                case 0xEC:
+                case 0xEE:
+                case 0xEF:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF}))))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // U+D000..U+D7FF: bytes ED 80..9F 80..BF
+                case 0xED:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x9F, 0x80, 0xBF}))))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // U+10000..U+3FFFF F0 90..BF 80..BF 80..BF
+                case 0xF0:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x90, 0xBF, 0x80, 0xBF, 0x80, 0xBF}))))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF
+                case 0xF1:
+                case 0xF2:
+                case 0xF3:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF, 0x80, 0xBF}))))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // U+100000..U+10FFFF F4 80..8F 80..BF 80..BF
+                case 0xF4:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x8F, 0x80, 0xBF, 0x80, 0xBF}))))
+                    {
+                        return token_type::parse_error;
+                    }
+                    break;
+                }
+
+                // remaining bytes (80..C1 and F5..FF) are ill-formed
+                default:
+                {
+                    error_message = "invalid string: ill-formed UTF-8 byte";
+                    return token_type::parse_error;
+                }
+            }
+        }
+    }
+
+    /*!
+     * @brief scan a comment
+     * @return whether comment could be scanned successfully
+     */
+    bool scan_comment()
+    {
+        switch (get())
+        {
+            // single-line comments skip input until a newline or EOF is read
+            case '/':
+            {
+                while (true)
+                {
+                    switch (get())
+                    {
+                        case '\n':
+                        case '\r':
+                        case std::char_traits<char_type>::eof():
+                        case '\0':
+                            return true;
+
+                        default:
+                            break;
+                    }
+                }
+            }
+
+            // multi-line comments skip input until */ is read
+            case '*':
+            {
+                while (true)
+                {
+                    switch (get())
+                    {
+                        case std::char_traits<char_type>::eof():
+                        case '\0':
+                        {
+                            error_message = "invalid comment; missing closing '*/'";
+                            return false;
+                        }
+
+                        case '*':
+                        {
+                            switch (get())
+                            {
+                                case '/':
+                                    return true;
+
+                                default:
+                                {
+                                    unget();
+                                    continue;
+                                }
+                            }
+                        }
+
+                        default:
+                            continue;
+                    }
+                }
+            }
+
+            // unexpected character after reading '/'
+            default:
+            {
+                error_message = "invalid comment; expecting '/' or '*' after '/'";
+                return false;
+            }
+        }
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    static void strtof(float& f, const char* str, char** endptr) noexcept
+    {
+        f = std::strtof(str, endptr);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    static void strtof(double& f, const char* str, char** endptr) noexcept
+    {
+        f = std::strtod(str, endptr);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    static void strtof(long double& f, const char* str, char** endptr) noexcept
+    {
+        f = std::strtold(str, endptr);
+    }
+
+    /*!
+    @brief scan a number literal
+
+    This function scans a string according to Sect. 6 of RFC 8259.
+
+    The function is realized with a deterministic finite state machine derived
+    from the grammar described in RFC 8259. Starting in state "init", the
+    input is read and used to determined the next state. Only state "done"
+    accepts the number. State "error" is a trap state to model errors. In the
+    table below, "anything" means any character but the ones listed before.
+
+    state    | 0        | 1-9      | e E      | +       | -       | .        | anything
+    ---------|----------|----------|----------|---------|---------|----------|-----------
+    init     | zero     | any1     | [error]  | [error] | minus   | [error]  | [error]
+    minus    | zero     | any1     | [error]  | [error] | [error] | [error]  | [error]
+    zero     | done     | done     | exponent | done    | done    | decimal1 | done
+    any1     | any1     | any1     | exponent | done    | done    | decimal1 | done
+    decimal1 | decimal2 | decimal2 | [error]  | [error] | [error] | [error]  | [error]
+    decimal2 | decimal2 | decimal2 | exponent | done    | done    | done     | done
+    exponent | any2     | any2     | [error]  | sign    | sign    | [error]  | [error]
+    sign     | any2     | any2     | [error]  | [error] | [error] | [error]  | [error]
+    any2     | any2     | any2     | done     | done    | done    | done     | done
+
+    The state machine is realized with one label per state (prefixed with
+    "scan_number_") and `goto` statements between them. The state machine
+    contains cycles, but any cycle can be left when EOF is read. Therefore,
+    the function is guaranteed to terminate.
+
+    During scanning, the read bytes are stored in token_buffer. This string is
+    then converted to a signed integer, an unsigned integer, or a
+    floating-point number.
+
+    @return token_type::value_unsigned, token_type::value_integer, or
+            token_type::value_float if number could be successfully scanned,
+            token_type::parse_error otherwise
+
+    @note The scanner is independent of the current locale. Internally, the
+          locale's decimal point is used instead of `.` to work with the
+          locale-dependent converters.
+    */
+    token_type scan_number()  // lgtm [cpp/use-of-goto]
+    {
+        // reset token_buffer to store the number's bytes
+        reset();
+
+        // the type of the parsed number; initially set to unsigned; will be
+        // changed if minus sign, decimal point or exponent is read
+        token_type number_type = token_type::value_unsigned;
+
+        // state (init): we just found out we need to scan a number
+        switch (current)
+        {
+            case '-':
+            {
+                add(current);
+                goto scan_number_minus;
+            }
+
+            case '0':
+            {
+                add(current);
+                goto scan_number_zero;
+            }
+
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_any1;
+            }
+
+            // all other characters are rejected outside scan_number()
+            default:            // LCOV_EXCL_LINE
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+        }
+
+scan_number_minus:
+        // state: we just parsed a leading minus sign
+        number_type = token_type::value_integer;
+        switch (get())
+        {
+            case '0':
+            {
+                add(current);
+                goto scan_number_zero;
+            }
+
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_any1;
+            }
+
+            default:
+            {
+                error_message = "invalid number; expected digit after '-'";
+                return token_type::parse_error;
+            }
+        }
+
+scan_number_zero:
+        // state: we just parse a zero (maybe with a leading minus sign)
+        switch (get())
+        {
+            case '.':
+            {
+                add(decimal_point_char);
+                goto scan_number_decimal1;
+            }
+
+            case 'e':
+            case 'E':
+            {
+                add(current);
+                goto scan_number_exponent;
+            }
+
+            default:
+                goto scan_number_done;
+        }
+
+scan_number_any1:
+        // state: we just parsed a number 0-9 (maybe with a leading minus sign)
+        switch (get())
+        {
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_any1;
+            }
+
+            case '.':
+            {
+                add(decimal_point_char);
+                goto scan_number_decimal1;
+            }
+
+            case 'e':
+            case 'E':
+            {
+                add(current);
+                goto scan_number_exponent;
+            }
+
+            default:
+                goto scan_number_done;
+        }
+
+scan_number_decimal1:
+        // state: we just parsed a decimal point
+        number_type = token_type::value_float;
+        switch (get())
+        {
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_decimal2;
+            }
+
+            default:
+            {
+                error_message = "invalid number; expected digit after '.'";
+                return token_type::parse_error;
+            }
+        }
+
+scan_number_decimal2:
+        // we just parsed at least one number after a decimal point
+        switch (get())
+        {
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_decimal2;
+            }
+
+            case 'e':
+            case 'E':
+            {
+                add(current);
+                goto scan_number_exponent;
+            }
+
+            default:
+                goto scan_number_done;
+        }
+
+scan_number_exponent:
+        // we just parsed an exponent
+        number_type = token_type::value_float;
+        switch (get())
+        {
+            case '+':
+            case '-':
+            {
+                add(current);
+                goto scan_number_sign;
+            }
+
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_any2;
+            }
+
+            default:
+            {
+                error_message =
+                    "invalid number; expected '+', '-', or digit after exponent";
+                return token_type::parse_error;
+            }
+        }
+
+scan_number_sign:
+        // we just parsed an exponent sign
+        switch (get())
+        {
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_any2;
+            }
+
+            default:
+            {
+                error_message = "invalid number; expected digit after exponent sign";
+                return token_type::parse_error;
+            }
+        }
+
+scan_number_any2:
+        // we just parsed a number after the exponent or exponent sign
+        switch (get())
+        {
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            {
+                add(current);
+                goto scan_number_any2;
+            }
+
+            default:
+                goto scan_number_done;
+        }
+
+scan_number_done:
+        // unget the character after the number (we only read it to know that
+        // we are done scanning a number)
+        unget();
+
+        char* endptr = nullptr; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+        errno = 0;
+
+        // try to parse integers first and fall back to floats
+        if (number_type == token_type::value_unsigned)
+        {
+            const auto x = std::strtoull(token_buffer.data(), &endptr, 10);
+
+            // we checked the number format before
+            JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size());
+
+            if (errno == 0)
+            {
+                value_unsigned = static_cast<number_unsigned_t>(x);
+                if (value_unsigned == x)
+                {
+                    return token_type::value_unsigned;
+                }
+            }
+        }
+        else if (number_type == token_type::value_integer)
+        {
+            const auto x = std::strtoll(token_buffer.data(), &endptr, 10);
+
+            // we checked the number format before
+            JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size());
+
+            if (errno == 0)
+            {
+                value_integer = static_cast<number_integer_t>(x);
+                if (value_integer == x)
+                {
+                    return token_type::value_integer;
+                }
+            }
+        }
+
+        // this code is reached if we parse a floating-point number or if an
+        // integer conversion above failed
+        strtof(value_float, token_buffer.data(), &endptr);
+
+        // we checked the number format before
+        JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size());
+
+        return token_type::value_float;
+    }
+
+    /*!
+    @param[in] literal_text  the literal text to expect
+    @param[in] length        the length of the passed literal text
+    @param[in] return_type   the token type to return on success
+    */
+    JSON_HEDLEY_NON_NULL(2)
+    token_type scan_literal(const char_type* literal_text, const std::size_t length,
+                            token_type return_type)
+    {
+        JSON_ASSERT(std::char_traits<char_type>::to_char_type(current) == literal_text[0]);
+        for (std::size_t i = 1; i < length; ++i)
+        {
+            if (JSON_HEDLEY_UNLIKELY(std::char_traits<char_type>::to_char_type(get()) != literal_text[i]))
+            {
+                error_message = "invalid literal";
+                return token_type::parse_error;
+            }
+        }
+        return return_type;
+    }
+
+    /////////////////////
+    // input management
+    /////////////////////
+
+    /// reset token_buffer; current character is beginning of token
+    void reset() noexcept
+    {
+        token_buffer.clear();
+        token_string.clear();
+        token_string.push_back(std::char_traits<char_type>::to_char_type(current));
+    }
+
+    /*
+    @brief get next character from the input
+
+    This function provides the interface to the used input adapter. It does
+    not throw in case the input reached EOF, but returns a
+    `std::char_traits<char>::eof()` in that case.  Stores the scanned characters
+    for use in error messages.
+
+    @return character read from the input
+    */
+    char_int_type get()
+    {
+        ++position.chars_read_total;
+        ++position.chars_read_current_line;
+
+        if (next_unget)
+        {
+            // just reset the next_unget variable and work with current
+            next_unget = false;
+        }
+        else
+        {
+            current = ia.get_character();
+        }
+
+        if (JSON_HEDLEY_LIKELY(current != std::char_traits<char_type>::eof()))
+        {
+            token_string.push_back(std::char_traits<char_type>::to_char_type(current));
+        }
+
+        if (current == '\n')
+        {
+            ++position.lines_read;
+            position.chars_read_current_line = 0;
+        }
+
+        return current;
+    }
+
+    /*!
+    @brief unget current character (read it again on next get)
+
+    We implement unget by setting variable next_unget to true. The input is not
+    changed - we just simulate ungetting by modifying chars_read_total,
+    chars_read_current_line, and token_string. The next call to get() will
+    behave as if the unget character is read again.
+    */
+    void unget()
+    {
+        next_unget = true;
+
+        --position.chars_read_total;
+
+        // in case we "unget" a newline, we have to also decrement the lines_read
+        if (position.chars_read_current_line == 0)
+        {
+            if (position.lines_read > 0)
+            {
+                --position.lines_read;
+            }
+        }
+        else
+        {
+            --position.chars_read_current_line;
+        }
+
+        if (JSON_HEDLEY_LIKELY(current != std::char_traits<char_type>::eof()))
+        {
+            JSON_ASSERT(!token_string.empty());
+            token_string.pop_back();
+        }
+    }
+
+    /// add a character to token_buffer
+    void add(char_int_type c)
+    {
+        token_buffer.push_back(static_cast<typename string_t::value_type>(c));
+    }
+
+  public:
+    /////////////////////
+    // value getters
+    /////////////////////
+
+    /// return integer value
+    constexpr number_integer_t get_number_integer() const noexcept
+    {
+        return value_integer;
+    }
+
+    /// return unsigned integer value
+    constexpr number_unsigned_t get_number_unsigned() const noexcept
+    {
+        return value_unsigned;
+    }
+
+    /// return floating-point value
+    constexpr number_float_t get_number_float() const noexcept
+    {
+        return value_float;
+    }
+
+    /// return current string value (implicitly resets the token; useful only once)
+    string_t& get_string()
+    {
+        return token_buffer;
+    }
+
+    /////////////////////
+    // diagnostics
+    /////////////////////
+
+    /// return position of last read token
+    constexpr position_t get_position() const noexcept
+    {
+        return position;
+    }
+
+    /// return the last read token (for errors only).  Will never contain EOF
+    /// (an arbitrary value that is not a valid char value, often -1), because
+    /// 255 may legitimately occur.  May contain NUL, which should be escaped.
+    std::string get_token_string() const
+    {
+        // escape control characters
+        std::string result;
+        for (const auto c : token_string)
+        {
+            if (static_cast<unsigned char>(c) <= '\x1F')
+            {
+                // escape control characters
+                std::array<char, 9> cs{{}};
+                (std::snprintf)(cs.data(), cs.size(), "<U+%.4X>", static_cast<unsigned char>(c)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+                result += cs.data();
+            }
+            else
+            {
+                // add character as is
+                result.push_back(static_cast<std::string::value_type>(c));
+            }
+        }
+
+        return result;
+    }
+
+    /// return syntax error message
+    JSON_HEDLEY_RETURNS_NON_NULL
+    constexpr const char* get_error_message() const noexcept
+    {
+        return error_message;
+    }
+
+    /////////////////////
+    // actual scanner
+    /////////////////////
+
+    /*!
+    @brief skip the UTF-8 byte order mark
+    @return true iff there is no BOM or the correct BOM has been skipped
+    */
+    bool skip_bom()
+    {
+        if (get() == 0xEF)
+        {
+            // check if we completely parse the BOM
+            return get() == 0xBB && get() == 0xBF;
+        }
+
+        // the first character is not the beginning of the BOM; unget it to
+        // process is later
+        unget();
+        return true;
+    }
+
+    void skip_whitespace()
+    {
+        do
+        {
+            get();
+        }
+        while (current == ' ' || current == '\t' || current == '\n' || current == '\r');
+    }
+
+    token_type scan()
+    {
+        // initially, skip the BOM
+        if (position.chars_read_total == 0 && !skip_bom())
+        {
+            error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given";
+            return token_type::parse_error;
+        }
+
+        // read next character and ignore whitespace
+        skip_whitespace();
+
+        // ignore comments
+        while (ignore_comments && current == '/')
+        {
+            if (!scan_comment())
+            {
+                return token_type::parse_error;
+            }
+
+            // skip following whitespace
+            skip_whitespace();
+        }
+
+        switch (current)
+        {
+            // structural characters
+            case '[':
+                return token_type::begin_array;
+            case ']':
+                return token_type::end_array;
+            case '{':
+                return token_type::begin_object;
+            case '}':
+                return token_type::end_object;
+            case ':':
+                return token_type::name_separator;
+            case ',':
+                return token_type::value_separator;
+
+            // literals
+            case 't':
+            {
+                std::array<char_type, 4> true_literal = {{char_type('t'), char_type('r'), char_type('u'), char_type('e')}};
+                return scan_literal(true_literal.data(), true_literal.size(), token_type::literal_true);
+            }
+            case 'f':
+            {
+                std::array<char_type, 5> false_literal = {{char_type('f'), char_type('a'), char_type('l'), char_type('s'), char_type('e')}};
+                return scan_literal(false_literal.data(), false_literal.size(), token_type::literal_false);
+            }
+            case 'n':
+            {
+                std::array<char_type, 4> null_literal = {{char_type('n'), char_type('u'), char_type('l'), char_type('l')}};
+                return scan_literal(null_literal.data(), null_literal.size(), token_type::literal_null);
+            }
+
+            // string
+            case '\"':
+                return scan_string();
+
+            // number
+            case '-':
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+                return scan_number();
+
+            // end of input (the null byte is needed when parsing from
+            // string literals)
+            case '\0':
+            case std::char_traits<char_type>::eof():
+                return token_type::end_of_input;
+
+            // error
+            default:
+                error_message = "invalid literal";
+                return token_type::parse_error;
+        }
+    }
+
+  private:
+    /// input adapter
+    InputAdapterType ia;
+
+    /// whether comments should be ignored (true) or signaled as errors (false)
+    const bool ignore_comments = false;
+
+    /// the current character
+    char_int_type current = std::char_traits<char_type>::eof();
+
+    /// whether the next get() call should just return current
+    bool next_unget = false;
+
+    /// the start position of the current token
+    position_t position {};
+
+    /// raw input token string (for error messages)
+    std::vector<char_type> token_string {};
+
+    /// buffer for variable-length tokens (numbers, strings)
+    string_t token_buffer {};
+
+    /// a description of occurred lexer errors
+    const char* error_message = "";
+
+    // number values
+    number_integer_t value_integer = 0;
+    number_unsigned_t value_unsigned = 0;
+    number_float_t value_float = 0;
+
+    /// the decimal point
+    const char_int_type decimal_point_char = '.';
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/meta/is_sax.hpp>
+
+
+#include <cstdint> // size_t
+#include <utility> // declval
+#include <string> // string
+
+// #include <nlohmann/detail/meta/detected.hpp>
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+template<typename T>
+using null_function_t = decltype(std::declval<T&>().null());
+
+template<typename T>
+using boolean_function_t =
+    decltype(std::declval<T&>().boolean(std::declval<bool>()));
+
+template<typename T, typename Integer>
+using number_integer_function_t =
+    decltype(std::declval<T&>().number_integer(std::declval<Integer>()));
+
+template<typename T, typename Unsigned>
+using number_unsigned_function_t =
+    decltype(std::declval<T&>().number_unsigned(std::declval<Unsigned>()));
+
+template<typename T, typename Float, typename String>
+using number_float_function_t = decltype(std::declval<T&>().number_float(
+                                    std::declval<Float>(), std::declval<const String&>()));
+
+template<typename T, typename String>
+using string_function_t =
+    decltype(std::declval<T&>().string(std::declval<String&>()));
+
+template<typename T, typename Binary>
+using binary_function_t =
+    decltype(std::declval<T&>().binary(std::declval<Binary&>()));
+
+template<typename T>
+using start_object_function_t =
+    decltype(std::declval<T&>().start_object(std::declval<std::size_t>()));
+
+template<typename T, typename String>
+using key_function_t =
+    decltype(std::declval<T&>().key(std::declval<String&>()));
+
+template<typename T>
+using end_object_function_t = decltype(std::declval<T&>().end_object());
+
+template<typename T>
+using start_array_function_t =
+    decltype(std::declval<T&>().start_array(std::declval<std::size_t>()));
+
+template<typename T>
+using end_array_function_t = decltype(std::declval<T&>().end_array());
+
+template<typename T, typename Exception>
+using parse_error_function_t = decltype(std::declval<T&>().parse_error(
+        std::declval<std::size_t>(), std::declval<const std::string&>(),
+        std::declval<const Exception&>()));
+
+template<typename SAX, typename BasicJsonType>
+struct is_sax
+{
+  private:
+    static_assert(is_basic_json<BasicJsonType>::value,
+                  "BasicJsonType must be of type basic_json<...>");
+
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+    using exception_t = typename BasicJsonType::exception;
+
+  public:
+    static constexpr bool value =
+        is_detected_exact<bool, null_function_t, SAX>::value &&
+        is_detected_exact<bool, boolean_function_t, SAX>::value &&
+        is_detected_exact<bool, number_integer_function_t, SAX, number_integer_t>::value &&
+        is_detected_exact<bool, number_unsigned_function_t, SAX, number_unsigned_t>::value &&
+        is_detected_exact<bool, number_float_function_t, SAX, number_float_t, string_t>::value &&
+        is_detected_exact<bool, string_function_t, SAX, string_t>::value &&
+        is_detected_exact<bool, binary_function_t, SAX, binary_t>::value &&
+        is_detected_exact<bool, start_object_function_t, SAX>::value &&
+        is_detected_exact<bool, key_function_t, SAX, string_t>::value &&
+        is_detected_exact<bool, end_object_function_t, SAX>::value &&
+        is_detected_exact<bool, start_array_function_t, SAX>::value &&
+        is_detected_exact<bool, end_array_function_t, SAX>::value &&
+        is_detected_exact<bool, parse_error_function_t, SAX, exception_t>::value;
+};
+
+template<typename SAX, typename BasicJsonType>
+struct is_sax_static_asserts
+{
+  private:
+    static_assert(is_basic_json<BasicJsonType>::value,
+                  "BasicJsonType must be of type basic_json<...>");
+
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+    using exception_t = typename BasicJsonType::exception;
+
+  public:
+    static_assert(is_detected_exact<bool, null_function_t, SAX>::value,
+                  "Missing/invalid function: bool null()");
+    static_assert(is_detected_exact<bool, boolean_function_t, SAX>::value,
+                  "Missing/invalid function: bool boolean(bool)");
+    static_assert(is_detected_exact<bool, boolean_function_t, SAX>::value,
+                  "Missing/invalid function: bool boolean(bool)");
+    static_assert(
+        is_detected_exact<bool, number_integer_function_t, SAX,
+        number_integer_t>::value,
+        "Missing/invalid function: bool number_integer(number_integer_t)");
+    static_assert(
+        is_detected_exact<bool, number_unsigned_function_t, SAX,
+        number_unsigned_t>::value,
+        "Missing/invalid function: bool number_unsigned(number_unsigned_t)");
+    static_assert(is_detected_exact<bool, number_float_function_t, SAX,
+                  number_float_t, string_t>::value,
+                  "Missing/invalid function: bool number_float(number_float_t, const string_t&)");
+    static_assert(
+        is_detected_exact<bool, string_function_t, SAX, string_t>::value,
+        "Missing/invalid function: bool string(string_t&)");
+    static_assert(
+        is_detected_exact<bool, binary_function_t, SAX, binary_t>::value,
+        "Missing/invalid function: bool binary(binary_t&)");
+    static_assert(is_detected_exact<bool, start_object_function_t, SAX>::value,
+                  "Missing/invalid function: bool start_object(std::size_t)");
+    static_assert(is_detected_exact<bool, key_function_t, SAX, string_t>::value,
+                  "Missing/invalid function: bool key(string_t&)");
+    static_assert(is_detected_exact<bool, end_object_function_t, SAX>::value,
+                  "Missing/invalid function: bool end_object()");
+    static_assert(is_detected_exact<bool, start_array_function_t, SAX>::value,
+                  "Missing/invalid function: bool start_array(std::size_t)");
+    static_assert(is_detected_exact<bool, end_array_function_t, SAX>::value,
+                  "Missing/invalid function: bool end_array()");
+    static_assert(
+        is_detected_exact<bool, parse_error_function_t, SAX, exception_t>::value,
+        "Missing/invalid function: bool parse_error(std::size_t, const "
+        "std::string&, const exception&)");
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+
+/// how to treat CBOR tags
+enum class cbor_tag_handler_t
+{
+    error,   ///< throw a parse_error exception in case of a tag
+    ignore,  ///< ignore tags
+    store    ///< store tags as binary type
+};
+
+/*!
+@brief determine system byte order
+
+@return true if and only if system's byte order is little endian
+
+@note from https://stackoverflow.com/a/1001328/266378
+*/
+static inline bool little_endianess(int num = 1) noexcept
+{
+    return *reinterpret_cast<char*>(&num) == 1;
+}
+
+
+///////////////////
+// binary reader //
+///////////////////
+
+/*!
+@brief deserialization of CBOR, MessagePack, and UBJSON values
+*/
+template<typename BasicJsonType, typename InputAdapterType, typename SAX = json_sax_dom_parser<BasicJsonType>>
+class binary_reader
+{
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+    using json_sax_t = SAX;
+    using char_type = typename InputAdapterType::char_type;
+    using char_int_type = typename std::char_traits<char_type>::int_type;
+
+  public:
+    /*!
+    @brief create a binary reader
+
+    @param[in] adapter  input adapter to read from
+    */
+    explicit binary_reader(InputAdapterType&& adapter) noexcept : ia(std::move(adapter))
+    {
+        (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
+    }
+
+    // make class move-only
+    binary_reader(const binary_reader&) = delete;
+    binary_reader(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    binary_reader& operator=(const binary_reader&) = delete;
+    binary_reader& operator=(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor)
+    ~binary_reader() = default;
+
+    /*!
+    @param[in] format  the binary format to parse
+    @param[in] sax_    a SAX event processor
+    @param[in] strict  whether to expect the input to be consumed completed
+    @param[in] tag_handler  how to treat CBOR tags
+
+    @return whether parsing was successful
+    */
+    JSON_HEDLEY_NON_NULL(3)
+    bool sax_parse(const input_format_t format,
+                   json_sax_t* sax_,
+                   const bool strict = true,
+                   const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
+    {
+        sax = sax_;
+        bool result = false;
+
+        switch (format)
+        {
+            case input_format_t::bson:
+                result = parse_bson_internal();
+                break;
+
+            case input_format_t::cbor:
+                result = parse_cbor_internal(true, tag_handler);
+                break;
+
+            case input_format_t::msgpack:
+                result = parse_msgpack_internal();
+                break;
+
+            case input_format_t::ubjson:
+                result = parse_ubjson_internal();
+                break;
+
+            case input_format_t::json: // LCOV_EXCL_LINE
+            default:            // LCOV_EXCL_LINE
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+        }
+
+        // strict mode: next byte must be EOF
+        if (result && strict)
+        {
+            if (format == input_format_t::ubjson)
+            {
+                get_ignore_noop();
+            }
+            else
+            {
+                get();
+            }
+
+            if (JSON_HEDLEY_UNLIKELY(current != std::char_traits<char_type>::eof()))
+            {
+                return sax->parse_error(chars_read, get_token_string(),
+                                        parse_error::create(110, chars_read, exception_message(format, "expected end of input; last byte: 0x" + get_token_string(), "value"), BasicJsonType()));
+            }
+        }
+
+        return result;
+    }
+
+  private:
+    //////////
+    // BSON //
+    //////////
+
+    /*!
+    @brief Reads in a BSON-object and passes it to the SAX-parser.
+    @return whether a valid BSON-value was passed to the SAX parser
+    */
+    bool parse_bson_internal()
+    {
+        std::int32_t document_size{};
+        get_number<std::int32_t, true>(input_format_t::bson, document_size);
+
+        if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1))))
+        {
+            return false;
+        }
+
+        if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/false)))
+        {
+            return false;
+        }
+
+        return sax->end_object();
+    }
+
+    /*!
+    @brief Parses a C-style string from the BSON input.
+    @param[in,out] result  A reference to the string variable where the read
+                            string is to be stored.
+    @return `true` if the \x00-byte indicating the end of the string was
+             encountered before the EOF; false` indicates an unexpected EOF.
+    */
+    bool get_bson_cstr(string_t& result)
+    {
+        auto out = std::back_inserter(result);
+        while (true)
+        {
+            get();
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "cstring")))
+            {
+                return false;
+            }
+            if (current == 0x00)
+            {
+                return true;
+            }
+            *out++ = static_cast<typename string_t::value_type>(current);
+        }
+    }
+
+    /*!
+    @brief Parses a zero-terminated string of length @a len from the BSON
+           input.
+    @param[in] len  The length (including the zero-byte at the end) of the
+                    string to be read.
+    @param[in,out] result  A reference to the string variable where the read
+                            string is to be stored.
+    @tparam NumberType The type of the length @a len
+    @pre len >= 1
+    @return `true` if the string was successfully parsed
+    */
+    template<typename NumberType>
+    bool get_bson_string(const NumberType len, string_t& result)
+    {
+        if (JSON_HEDLEY_UNLIKELY(len < 1))
+        {
+            auto last_token = get_token_string();
+            return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "string length must be at least 1, is " + std::to_string(len), "string"), BasicJsonType()));
+        }
+
+        return get_string(input_format_t::bson, len - static_cast<NumberType>(1), result) && get() != std::char_traits<char_type>::eof();
+    }
+
+    /*!
+    @brief Parses a byte array input of length @a len from the BSON input.
+    @param[in] len  The length of the byte array to be read.
+    @param[in,out] result  A reference to the binary variable where the read
+                            array is to be stored.
+    @tparam NumberType The type of the length @a len
+    @pre len >= 0
+    @return `true` if the byte array was successfully parsed
+    */
+    template<typename NumberType>
+    bool get_bson_binary(const NumberType len, binary_t& result)
+    {
+        if (JSON_HEDLEY_UNLIKELY(len < 0))
+        {
+            auto last_token = get_token_string();
+            return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "byte array length cannot be negative, is " + std::to_string(len), "binary"), BasicJsonType()));
+        }
+
+        // All BSON binary values have a subtype
+        std::uint8_t subtype{};
+        get_number<std::uint8_t>(input_format_t::bson, subtype);
+        result.set_subtype(subtype);
+
+        return get_binary(input_format_t::bson, len, result);
+    }
+
+    /*!
+    @brief Read a BSON document element of the given @a element_type.
+    @param[in] element_type The BSON element type, c.f. http://bsonspec.org/spec.html
+    @param[in] element_type_parse_position The position in the input stream,
+               where the `element_type` was read.
+    @warning Not all BSON element types are supported yet. An unsupported
+             @a element_type will give rise to a parse_error.114:
+             Unsupported BSON record type 0x...
+    @return whether a valid BSON-object/array was passed to the SAX parser
+    */
+    bool parse_bson_element_internal(const char_int_type element_type,
+                                     const std::size_t element_type_parse_position)
+    {
+        switch (element_type)
+        {
+            case 0x01: // double
+            {
+                double number{};
+                return get_number<double, true>(input_format_t::bson, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            case 0x02: // string
+            {
+                std::int32_t len{};
+                string_t value;
+                return get_number<std::int32_t, true>(input_format_t::bson, len) && get_bson_string(len, value) && sax->string(value);
+            }
+
+            case 0x03: // object
+            {
+                return parse_bson_internal();
+            }
+
+            case 0x04: // array
+            {
+                return parse_bson_array();
+            }
+
+            case 0x05: // binary
+            {
+                std::int32_t len{};
+                binary_t value;
+                return get_number<std::int32_t, true>(input_format_t::bson, len) && get_bson_binary(len, value) && sax->binary(value);
+            }
+
+            case 0x08: // boolean
+            {
+                return sax->boolean(get() != 0);
+            }
+
+            case 0x0A: // null
+            {
+                return sax->null();
+            }
+
+            case 0x10: // int32
+            {
+                std::int32_t value{};
+                return get_number<std::int32_t, true>(input_format_t::bson, value) && sax->number_integer(value);
+            }
+
+            case 0x12: // int64
+            {
+                std::int64_t value{};
+                return get_number<std::int64_t, true>(input_format_t::bson, value) && sax->number_integer(value);
+            }
+
+            default: // anything else not supported (yet)
+            {
+                std::array<char, 3> cr{{}};
+                (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast<unsigned char>(element_type)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+                return sax->parse_error(element_type_parse_position, std::string(cr.data()), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr.data()), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @brief Read a BSON element list (as specified in the BSON-spec)
+
+    The same binary layout is used for objects and arrays, hence it must be
+    indicated with the argument @a is_array which one is expected
+    (true --> array, false --> object).
+
+    @param[in] is_array Determines if the element list being read is to be
+                        treated as an object (@a is_array == false), or as an
+                        array (@a is_array == true).
+    @return whether a valid BSON-object/array was passed to the SAX parser
+    */
+    bool parse_bson_element_list(const bool is_array)
+    {
+        string_t key;
+
+        while (auto element_type = get())
+        {
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "element list")))
+            {
+                return false;
+            }
+
+            const std::size_t element_type_parse_position = chars_read;
+            if (JSON_HEDLEY_UNLIKELY(!get_bson_cstr(key)))
+            {
+                return false;
+            }
+
+            if (!is_array && !sax->key(key))
+            {
+                return false;
+            }
+
+            if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_internal(element_type, element_type_parse_position)))
+            {
+                return false;
+            }
+
+            // get_bson_cstr only appends
+            key.clear();
+        }
+
+        return true;
+    }
+
+    /*!
+    @brief Reads an array from the BSON input and passes it to the SAX-parser.
+    @return whether a valid BSON-array was passed to the SAX parser
+    */
+    bool parse_bson_array()
+    {
+        std::int32_t document_size{};
+        get_number<std::int32_t, true>(input_format_t::bson, document_size);
+
+        if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1))))
+        {
+            return false;
+        }
+
+        if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/true)))
+        {
+            return false;
+        }
+
+        return sax->end_array();
+    }
+
+    //////////
+    // CBOR //
+    //////////
+
+    /*!
+    @param[in] get_char  whether a new character should be retrieved from the
+                         input (true) or whether the last read character should
+                         be considered instead (false)
+    @param[in] tag_handler how CBOR tags should be treated
+
+    @return whether a valid CBOR value was passed to the SAX parser
+    */
+    bool parse_cbor_internal(const bool get_char,
+                             const cbor_tag_handler_t tag_handler)
+    {
+        switch (get_char ? get() : current)
+        {
+            // EOF
+            case std::char_traits<char_type>::eof():
+                return unexpect_eof(input_format_t::cbor, "value");
+
+            // Integer 0x00..0x17 (0..23)
+            case 0x00:
+            case 0x01:
+            case 0x02:
+            case 0x03:
+            case 0x04:
+            case 0x05:
+            case 0x06:
+            case 0x07:
+            case 0x08:
+            case 0x09:
+            case 0x0A:
+            case 0x0B:
+            case 0x0C:
+            case 0x0D:
+            case 0x0E:
+            case 0x0F:
+            case 0x10:
+            case 0x11:
+            case 0x12:
+            case 0x13:
+            case 0x14:
+            case 0x15:
+            case 0x16:
+            case 0x17:
+                return sax->number_unsigned(static_cast<number_unsigned_t>(current));
+
+            case 0x18: // Unsigned integer (one-byte uint8_t follows)
+            {
+                std::uint8_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_unsigned(number);
+            }
+
+            case 0x19: // Unsigned integer (two-byte uint16_t follows)
+            {
+                std::uint16_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_unsigned(number);
+            }
+
+            case 0x1A: // Unsigned integer (four-byte uint32_t follows)
+            {
+                std::uint32_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_unsigned(number);
+            }
+
+            case 0x1B: // Unsigned integer (eight-byte uint64_t follows)
+            {
+                std::uint64_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_unsigned(number);
+            }
+
+            // Negative integer -1-0x00..-1-0x17 (-1..-24)
+            case 0x20:
+            case 0x21:
+            case 0x22:
+            case 0x23:
+            case 0x24:
+            case 0x25:
+            case 0x26:
+            case 0x27:
+            case 0x28:
+            case 0x29:
+            case 0x2A:
+            case 0x2B:
+            case 0x2C:
+            case 0x2D:
+            case 0x2E:
+            case 0x2F:
+            case 0x30:
+            case 0x31:
+            case 0x32:
+            case 0x33:
+            case 0x34:
+            case 0x35:
+            case 0x36:
+            case 0x37:
+                return sax->number_integer(static_cast<std::int8_t>(0x20 - 1 - current));
+
+            case 0x38: // Negative integer (one-byte uint8_t follows)
+            {
+                std::uint8_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast<number_integer_t>(-1) - number);
+            }
+
+            case 0x39: // Negative integer -1-n (two-byte uint16_t follows)
+            {
+                std::uint16_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast<number_integer_t>(-1) - number);
+            }
+
+            case 0x3A: // Negative integer -1-n (four-byte uint32_t follows)
+            {
+                std::uint32_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast<number_integer_t>(-1) - number);
+            }
+
+            case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows)
+            {
+                std::uint64_t number{};
+                return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast<number_integer_t>(-1)
+                        - static_cast<number_integer_t>(number));
+            }
+
+            // Binary data (0x00..0x17 bytes follow)
+            case 0x40:
+            case 0x41:
+            case 0x42:
+            case 0x43:
+            case 0x44:
+            case 0x45:
+            case 0x46:
+            case 0x47:
+            case 0x48:
+            case 0x49:
+            case 0x4A:
+            case 0x4B:
+            case 0x4C:
+            case 0x4D:
+            case 0x4E:
+            case 0x4F:
+            case 0x50:
+            case 0x51:
+            case 0x52:
+            case 0x53:
+            case 0x54:
+            case 0x55:
+            case 0x56:
+            case 0x57:
+            case 0x58: // Binary data (one-byte uint8_t for n follows)
+            case 0x59: // Binary data (two-byte uint16_t for n follow)
+            case 0x5A: // Binary data (four-byte uint32_t for n follow)
+            case 0x5B: // Binary data (eight-byte uint64_t for n follow)
+            case 0x5F: // Binary data (indefinite length)
+            {
+                binary_t b;
+                return get_cbor_binary(b) && sax->binary(b);
+            }
+
+            // UTF-8 string (0x00..0x17 bytes follow)
+            case 0x60:
+            case 0x61:
+            case 0x62:
+            case 0x63:
+            case 0x64:
+            case 0x65:
+            case 0x66:
+            case 0x67:
+            case 0x68:
+            case 0x69:
+            case 0x6A:
+            case 0x6B:
+            case 0x6C:
+            case 0x6D:
+            case 0x6E:
+            case 0x6F:
+            case 0x70:
+            case 0x71:
+            case 0x72:
+            case 0x73:
+            case 0x74:
+            case 0x75:
+            case 0x76:
+            case 0x77:
+            case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
+            case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
+            case 0x7A: // UTF-8 string (four-byte uint32_t for n follow)
+            case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow)
+            case 0x7F: // UTF-8 string (indefinite length)
+            {
+                string_t s;
+                return get_cbor_string(s) && sax->string(s);
+            }
+
+            // array (0x00..0x17 data items follow)
+            case 0x80:
+            case 0x81:
+            case 0x82:
+            case 0x83:
+            case 0x84:
+            case 0x85:
+            case 0x86:
+            case 0x87:
+            case 0x88:
+            case 0x89:
+            case 0x8A:
+            case 0x8B:
+            case 0x8C:
+            case 0x8D:
+            case 0x8E:
+            case 0x8F:
+            case 0x90:
+            case 0x91:
+            case 0x92:
+            case 0x93:
+            case 0x94:
+            case 0x95:
+            case 0x96:
+            case 0x97:
+                return get_cbor_array(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x1Fu), tag_handler);
+
+            case 0x98: // array (one-byte uint8_t for n follows)
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0x99: // array (two-byte uint16_t for n follow)
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0x9A: // array (four-byte uint32_t for n follow)
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0x9B: // array (eight-byte uint64_t for n follow)
+            {
+                std::uint64_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_array(detail::conditional_static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0x9F: // array (indefinite length)
+                return get_cbor_array(std::size_t(-1), tag_handler);
+
+            // map (0x00..0x17 pairs of data items follow)
+            case 0xA0:
+            case 0xA1:
+            case 0xA2:
+            case 0xA3:
+            case 0xA4:
+            case 0xA5:
+            case 0xA6:
+            case 0xA7:
+            case 0xA8:
+            case 0xA9:
+            case 0xAA:
+            case 0xAB:
+            case 0xAC:
+            case 0xAD:
+            case 0xAE:
+            case 0xAF:
+            case 0xB0:
+            case 0xB1:
+            case 0xB2:
+            case 0xB3:
+            case 0xB4:
+            case 0xB5:
+            case 0xB6:
+            case 0xB7:
+                return get_cbor_object(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x1Fu), tag_handler);
+
+            case 0xB8: // map (one-byte uint8_t for n follows)
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0xB9: // map (two-byte uint16_t for n follow)
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0xBA: // map (four-byte uint32_t for n follow)
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0xBB: // map (eight-byte uint64_t for n follow)
+            {
+                std::uint64_t len{};
+                return get_number(input_format_t::cbor, len) && get_cbor_object(detail::conditional_static_cast<std::size_t>(len), tag_handler);
+            }
+
+            case 0xBF: // map (indefinite length)
+                return get_cbor_object(std::size_t(-1), tag_handler);
+
+            case 0xC6: // tagged item
+            case 0xC7:
+            case 0xC8:
+            case 0xC9:
+            case 0xCA:
+            case 0xCB:
+            case 0xCC:
+            case 0xCD:
+            case 0xCE:
+            case 0xCF:
+            case 0xD0:
+            case 0xD1:
+            case 0xD2:
+            case 0xD3:
+            case 0xD4:
+            case 0xD8: // tagged item (1 bytes follow)
+            case 0xD9: // tagged item (2 bytes follow)
+            case 0xDA: // tagged item (4 bytes follow)
+            case 0xDB: // tagged item (8 bytes follow)
+            {
+                switch (tag_handler)
+                {
+                    case cbor_tag_handler_t::error:
+                    {
+                        auto last_token = get_token_string();
+                        return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
+                    }
+
+                    case cbor_tag_handler_t::ignore:
+                    {
+                        // ignore binary subtype
+                        switch (current)
+                        {
+                            case 0xD8:
+                            {
+                                std::uint8_t subtype_to_ignore{};
+                                get_number(input_format_t::cbor, subtype_to_ignore);
+                                break;
+                            }
+                            case 0xD9:
+                            {
+                                std::uint16_t subtype_to_ignore{};
+                                get_number(input_format_t::cbor, subtype_to_ignore);
+                                break;
+                            }
+                            case 0xDA:
+                            {
+                                std::uint32_t subtype_to_ignore{};
+                                get_number(input_format_t::cbor, subtype_to_ignore);
+                                break;
+                            }
+                            case 0xDB:
+                            {
+                                std::uint64_t subtype_to_ignore{};
+                                get_number(input_format_t::cbor, subtype_to_ignore);
+                                break;
+                            }
+                            default:
+                                break;
+                        }
+                        return parse_cbor_internal(true, tag_handler);
+                    }
+
+                    case cbor_tag_handler_t::store:
+                    {
+                        binary_t b;
+                        // use binary subtype and store in binary container
+                        switch (current)
+                        {
+                            case 0xD8:
+                            {
+                                std::uint8_t subtype{};
+                                get_number(input_format_t::cbor, subtype);
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            case 0xD9:
+                            {
+                                std::uint16_t subtype{};
+                                get_number(input_format_t::cbor, subtype);
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            case 0xDA:
+                            {
+                                std::uint32_t subtype{};
+                                get_number(input_format_t::cbor, subtype);
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            case 0xDB:
+                            {
+                                std::uint64_t subtype{};
+                                get_number(input_format_t::cbor, subtype);
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            default:
+                                return parse_cbor_internal(true, tag_handler);
+                        }
+                        get();
+                        return get_cbor_binary(b) && sax->binary(b);
+                    }
+
+                    default:                 // LCOV_EXCL_LINE
+                        JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+                        return false;        // LCOV_EXCL_LINE
+                }
+            }
+
+            case 0xF4: // false
+                return sax->boolean(false);
+
+            case 0xF5: // true
+                return sax->boolean(true);
+
+            case 0xF6: // null
+                return sax->null();
+
+            case 0xF9: // Half-Precision Float (two-byte IEEE 754)
+            {
+                const auto byte1_raw = get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number")))
+                {
+                    return false;
+                }
+                const auto byte2_raw = get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number")))
+                {
+                    return false;
+                }
+
+                const auto byte1 = static_cast<unsigned char>(byte1_raw);
+                const auto byte2 = static_cast<unsigned char>(byte2_raw);
+
+                // code from RFC 7049, Appendix D, Figure 3:
+                // As half-precision floating-point numbers were only added
+                // to IEEE 754 in 2008, today's programming platforms often
+                // still only have limited support for them. It is very
+                // easy to include at least decoding support for them even
+                // without such support. An example of a small decoder for
+                // half-precision floating-point numbers in the C language
+                // is shown in Fig. 3.
+                const auto half = static_cast<unsigned int>((byte1 << 8u) + byte2);
+                const double val = [&half]
+                {
+                    const int exp = (half >> 10u) & 0x1Fu;
+                    const unsigned int mant = half & 0x3FFu;
+                    JSON_ASSERT(0 <= exp&& exp <= 32);
+                    JSON_ASSERT(mant <= 1024);
+                    switch (exp)
+                    {
+                        case 0:
+                            return std::ldexp(mant, -24);
+                        case 31:
+                            return (mant == 0)
+                            ? std::numeric_limits<double>::infinity()
+                            : std::numeric_limits<double>::quiet_NaN();
+                        default:
+                            return std::ldexp(mant + 1024, exp - 25);
+                    }
+                }();
+                return sax->number_float((half & 0x8000u) != 0
+                                         ? static_cast<number_float_t>(-val)
+                                         : static_cast<number_float_t>(val), "");
+            }
+
+            case 0xFA: // Single-Precision Float (four-byte IEEE 754)
+            {
+                float number{};
+                return get_number(input_format_t::cbor, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            case 0xFB: // Double-Precision Float (eight-byte IEEE 754)
+            {
+                double number{};
+                return get_number(input_format_t::cbor, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            default: // anything else (0xFF is handled inside the other types)
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @brief reads a CBOR string
+
+    This function first reads starting bytes to determine the expected
+    string length and then copies this number of bytes into a string.
+    Additionally, CBOR's strings with indefinite lengths are supported.
+
+    @param[out] result  created string
+
+    @return whether string creation completed
+    */
+    bool get_cbor_string(string_t& result)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "string")))
+        {
+            return false;
+        }
+
+        switch (current)
+        {
+            // UTF-8 string (0x00..0x17 bytes follow)
+            case 0x60:
+            case 0x61:
+            case 0x62:
+            case 0x63:
+            case 0x64:
+            case 0x65:
+            case 0x66:
+            case 0x67:
+            case 0x68:
+            case 0x69:
+            case 0x6A:
+            case 0x6B:
+            case 0x6C:
+            case 0x6D:
+            case 0x6E:
+            case 0x6F:
+            case 0x70:
+            case 0x71:
+            case 0x72:
+            case 0x73:
+            case 0x74:
+            case 0x75:
+            case 0x76:
+            case 0x77:
+            {
+                return get_string(input_format_t::cbor, static_cast<unsigned int>(current) & 0x1Fu, result);
+            }
+
+            case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result);
+            }
+
+            case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result);
+            }
+
+            case 0x7A: // UTF-8 string (four-byte uint32_t for n follow)
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result);
+            }
+
+            case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow)
+            {
+                std::uint64_t len{};
+                return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result);
+            }
+
+            case 0x7F: // UTF-8 string (indefinite length)
+            {
+                while (get() != 0xFF)
+                {
+                    string_t chunk;
+                    if (!get_cbor_string(chunk))
+                    {
+                        return false;
+                    }
+                    result.append(chunk);
+                }
+                return true;
+            }
+
+            default:
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x" + last_token, "string"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @brief reads a CBOR byte array
+
+    This function first reads starting bytes to determine the expected
+    byte array length and then copies this number of bytes into the byte array.
+    Additionally, CBOR's byte arrays with indefinite lengths are supported.
+
+    @param[out] result  created byte array
+
+    @return whether byte array creation completed
+    */
+    bool get_cbor_binary(binary_t& result)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "binary")))
+        {
+            return false;
+        }
+
+        switch (current)
+        {
+            // Binary data (0x00..0x17 bytes follow)
+            case 0x40:
+            case 0x41:
+            case 0x42:
+            case 0x43:
+            case 0x44:
+            case 0x45:
+            case 0x46:
+            case 0x47:
+            case 0x48:
+            case 0x49:
+            case 0x4A:
+            case 0x4B:
+            case 0x4C:
+            case 0x4D:
+            case 0x4E:
+            case 0x4F:
+            case 0x50:
+            case 0x51:
+            case 0x52:
+            case 0x53:
+            case 0x54:
+            case 0x55:
+            case 0x56:
+            case 0x57:
+            {
+                return get_binary(input_format_t::cbor, static_cast<unsigned int>(current) & 0x1Fu, result);
+            }
+
+            case 0x58: // Binary data (one-byte uint8_t for n follows)
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::cbor, len) &&
+                       get_binary(input_format_t::cbor, len, result);
+            }
+
+            case 0x59: // Binary data (two-byte uint16_t for n follow)
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::cbor, len) &&
+                       get_binary(input_format_t::cbor, len, result);
+            }
+
+            case 0x5A: // Binary data (four-byte uint32_t for n follow)
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::cbor, len) &&
+                       get_binary(input_format_t::cbor, len, result);
+            }
+
+            case 0x5B: // Binary data (eight-byte uint64_t for n follow)
+            {
+                std::uint64_t len{};
+                return get_number(input_format_t::cbor, len) &&
+                       get_binary(input_format_t::cbor, len, result);
+            }
+
+            case 0x5F: // Binary data (indefinite length)
+            {
+                while (get() != 0xFF)
+                {
+                    binary_t chunk;
+                    if (!get_cbor_binary(chunk))
+                    {
+                        return false;
+                    }
+                    result.insert(result.end(), chunk.begin(), chunk.end());
+                }
+                return true;
+            }
+
+            default:
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x40-0x5B) or indefinite binary array type (0x5F); last byte: 0x" + last_token, "binary"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @param[in] len  the length of the array or std::size_t(-1) for an
+                    array of indefinite size
+    @param[in] tag_handler how CBOR tags should be treated
+    @return whether array creation completed
+    */
+    bool get_cbor_array(const std::size_t len,
+                        const cbor_tag_handler_t tag_handler)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len)))
+        {
+            return false;
+        }
+
+        if (len != std::size_t(-1))
+        {
+            for (std::size_t i = 0; i < len; ++i)
+            {
+                if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler)))
+                {
+                    return false;
+                }
+            }
+        }
+        else
+        {
+            while (get() != 0xFF)
+            {
+                if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(false, tag_handler)))
+                {
+                    return false;
+                }
+            }
+        }
+
+        return sax->end_array();
+    }
+
+    /*!
+    @param[in] len  the length of the object or std::size_t(-1) for an
+                    object of indefinite size
+    @param[in] tag_handler how CBOR tags should be treated
+    @return whether object creation completed
+    */
+    bool get_cbor_object(const std::size_t len,
+                         const cbor_tag_handler_t tag_handler)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len)))
+        {
+            return false;
+        }
+
+        if (len != 0)
+        {
+            string_t key;
+            if (len != std::size_t(-1))
+            {
+                for (std::size_t i = 0; i < len; ++i)
+                {
+                    get();
+                    if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key)))
+                    {
+                        return false;
+                    }
+
+                    if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler)))
+                    {
+                        return false;
+                    }
+                    key.clear();
+                }
+            }
+            else
+            {
+                while (get() != 0xFF)
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key)))
+                    {
+                        return false;
+                    }
+
+                    if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler)))
+                    {
+                        return false;
+                    }
+                    key.clear();
+                }
+            }
+        }
+
+        return sax->end_object();
+    }
+
+    /////////////
+    // MsgPack //
+    /////////////
+
+    /*!
+    @return whether a valid MessagePack value was passed to the SAX parser
+    */
+    bool parse_msgpack_internal()
+    {
+        switch (get())
+        {
+            // EOF
+            case std::char_traits<char_type>::eof():
+                return unexpect_eof(input_format_t::msgpack, "value");
+
+            // positive fixint
+            case 0x00:
+            case 0x01:
+            case 0x02:
+            case 0x03:
+            case 0x04:
+            case 0x05:
+            case 0x06:
+            case 0x07:
+            case 0x08:
+            case 0x09:
+            case 0x0A:
+            case 0x0B:
+            case 0x0C:
+            case 0x0D:
+            case 0x0E:
+            case 0x0F:
+            case 0x10:
+            case 0x11:
+            case 0x12:
+            case 0x13:
+            case 0x14:
+            case 0x15:
+            case 0x16:
+            case 0x17:
+            case 0x18:
+            case 0x19:
+            case 0x1A:
+            case 0x1B:
+            case 0x1C:
+            case 0x1D:
+            case 0x1E:
+            case 0x1F:
+            case 0x20:
+            case 0x21:
+            case 0x22:
+            case 0x23:
+            case 0x24:
+            case 0x25:
+            case 0x26:
+            case 0x27:
+            case 0x28:
+            case 0x29:
+            case 0x2A:
+            case 0x2B:
+            case 0x2C:
+            case 0x2D:
+            case 0x2E:
+            case 0x2F:
+            case 0x30:
+            case 0x31:
+            case 0x32:
+            case 0x33:
+            case 0x34:
+            case 0x35:
+            case 0x36:
+            case 0x37:
+            case 0x38:
+            case 0x39:
+            case 0x3A:
+            case 0x3B:
+            case 0x3C:
+            case 0x3D:
+            case 0x3E:
+            case 0x3F:
+            case 0x40:
+            case 0x41:
+            case 0x42:
+            case 0x43:
+            case 0x44:
+            case 0x45:
+            case 0x46:
+            case 0x47:
+            case 0x48:
+            case 0x49:
+            case 0x4A:
+            case 0x4B:
+            case 0x4C:
+            case 0x4D:
+            case 0x4E:
+            case 0x4F:
+            case 0x50:
+            case 0x51:
+            case 0x52:
+            case 0x53:
+            case 0x54:
+            case 0x55:
+            case 0x56:
+            case 0x57:
+            case 0x58:
+            case 0x59:
+            case 0x5A:
+            case 0x5B:
+            case 0x5C:
+            case 0x5D:
+            case 0x5E:
+            case 0x5F:
+            case 0x60:
+            case 0x61:
+            case 0x62:
+            case 0x63:
+            case 0x64:
+            case 0x65:
+            case 0x66:
+            case 0x67:
+            case 0x68:
+            case 0x69:
+            case 0x6A:
+            case 0x6B:
+            case 0x6C:
+            case 0x6D:
+            case 0x6E:
+            case 0x6F:
+            case 0x70:
+            case 0x71:
+            case 0x72:
+            case 0x73:
+            case 0x74:
+            case 0x75:
+            case 0x76:
+            case 0x77:
+            case 0x78:
+            case 0x79:
+            case 0x7A:
+            case 0x7B:
+            case 0x7C:
+            case 0x7D:
+            case 0x7E:
+            case 0x7F:
+                return sax->number_unsigned(static_cast<number_unsigned_t>(current));
+
+            // fixmap
+            case 0x80:
+            case 0x81:
+            case 0x82:
+            case 0x83:
+            case 0x84:
+            case 0x85:
+            case 0x86:
+            case 0x87:
+            case 0x88:
+            case 0x89:
+            case 0x8A:
+            case 0x8B:
+            case 0x8C:
+            case 0x8D:
+            case 0x8E:
+            case 0x8F:
+                return get_msgpack_object(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x0Fu));
+
+            // fixarray
+            case 0x90:
+            case 0x91:
+            case 0x92:
+            case 0x93:
+            case 0x94:
+            case 0x95:
+            case 0x96:
+            case 0x97:
+            case 0x98:
+            case 0x99:
+            case 0x9A:
+            case 0x9B:
+            case 0x9C:
+            case 0x9D:
+            case 0x9E:
+            case 0x9F:
+                return get_msgpack_array(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x0Fu));
+
+            // fixstr
+            case 0xA0:
+            case 0xA1:
+            case 0xA2:
+            case 0xA3:
+            case 0xA4:
+            case 0xA5:
+            case 0xA6:
+            case 0xA7:
+            case 0xA8:
+            case 0xA9:
+            case 0xAA:
+            case 0xAB:
+            case 0xAC:
+            case 0xAD:
+            case 0xAE:
+            case 0xAF:
+            case 0xB0:
+            case 0xB1:
+            case 0xB2:
+            case 0xB3:
+            case 0xB4:
+            case 0xB5:
+            case 0xB6:
+            case 0xB7:
+            case 0xB8:
+            case 0xB9:
+            case 0xBA:
+            case 0xBB:
+            case 0xBC:
+            case 0xBD:
+            case 0xBE:
+            case 0xBF:
+            case 0xD9: // str 8
+            case 0xDA: // str 16
+            case 0xDB: // str 32
+            {
+                string_t s;
+                return get_msgpack_string(s) && sax->string(s);
+            }
+
+            case 0xC0: // nil
+                return sax->null();
+
+            case 0xC2: // false
+                return sax->boolean(false);
+
+            case 0xC3: // true
+                return sax->boolean(true);
+
+            case 0xC4: // bin 8
+            case 0xC5: // bin 16
+            case 0xC6: // bin 32
+            case 0xC7: // ext 8
+            case 0xC8: // ext 16
+            case 0xC9: // ext 32
+            case 0xD4: // fixext 1
+            case 0xD5: // fixext 2
+            case 0xD6: // fixext 4
+            case 0xD7: // fixext 8
+            case 0xD8: // fixext 16
+            {
+                binary_t b;
+                return get_msgpack_binary(b) && sax->binary(b);
+            }
+
+            case 0xCA: // float 32
+            {
+                float number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            case 0xCB: // float 64
+            {
+                double number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            case 0xCC: // uint 8
+            {
+                std::uint8_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number);
+            }
+
+            case 0xCD: // uint 16
+            {
+                std::uint16_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number);
+            }
+
+            case 0xCE: // uint 32
+            {
+                std::uint32_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number);
+            }
+
+            case 0xCF: // uint 64
+            {
+                std::uint64_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number);
+            }
+
+            case 0xD0: // int 8
+            {
+                std::int8_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_integer(number);
+            }
+
+            case 0xD1: // int 16
+            {
+                std::int16_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_integer(number);
+            }
+
+            case 0xD2: // int 32
+            {
+                std::int32_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_integer(number);
+            }
+
+            case 0xD3: // int 64
+            {
+                std::int64_t number{};
+                return get_number(input_format_t::msgpack, number) && sax->number_integer(number);
+            }
+
+            case 0xDC: // array 16
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast<std::size_t>(len));
+            }
+
+            case 0xDD: // array 32
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast<std::size_t>(len));
+            }
+
+            case 0xDE: // map 16
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast<std::size_t>(len));
+            }
+
+            case 0xDF: // map 32
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast<std::size_t>(len));
+            }
+
+            // negative fixint
+            case 0xE0:
+            case 0xE1:
+            case 0xE2:
+            case 0xE3:
+            case 0xE4:
+            case 0xE5:
+            case 0xE6:
+            case 0xE7:
+            case 0xE8:
+            case 0xE9:
+            case 0xEA:
+            case 0xEB:
+            case 0xEC:
+            case 0xED:
+            case 0xEE:
+            case 0xEF:
+            case 0xF0:
+            case 0xF1:
+            case 0xF2:
+            case 0xF3:
+            case 0xF4:
+            case 0xF5:
+            case 0xF6:
+            case 0xF7:
+            case 0xF8:
+            case 0xF9:
+            case 0xFA:
+            case 0xFB:
+            case 0xFC:
+            case 0xFD:
+            case 0xFE:
+            case 0xFF:
+                return sax->number_integer(static_cast<std::int8_t>(current));
+
+            default: // anything else
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::msgpack, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @brief reads a MessagePack string
+
+    This function first reads starting bytes to determine the expected
+    string length and then copies this number of bytes into a string.
+
+    @param[out] result  created string
+
+    @return whether string creation completed
+    */
+    bool get_msgpack_string(string_t& result)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::msgpack, "string")))
+        {
+            return false;
+        }
+
+        switch (current)
+        {
+            // fixstr
+            case 0xA0:
+            case 0xA1:
+            case 0xA2:
+            case 0xA3:
+            case 0xA4:
+            case 0xA5:
+            case 0xA6:
+            case 0xA7:
+            case 0xA8:
+            case 0xA9:
+            case 0xAA:
+            case 0xAB:
+            case 0xAC:
+            case 0xAD:
+            case 0xAE:
+            case 0xAF:
+            case 0xB0:
+            case 0xB1:
+            case 0xB2:
+            case 0xB3:
+            case 0xB4:
+            case 0xB5:
+            case 0xB6:
+            case 0xB7:
+            case 0xB8:
+            case 0xB9:
+            case 0xBA:
+            case 0xBB:
+            case 0xBC:
+            case 0xBD:
+            case 0xBE:
+            case 0xBF:
+            {
+                return get_string(input_format_t::msgpack, static_cast<unsigned int>(current) & 0x1Fu, result);
+            }
+
+            case 0xD9: // str 8
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result);
+            }
+
+            case 0xDA: // str 16
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result);
+            }
+
+            case 0xDB: // str 32
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result);
+            }
+
+            default:
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::msgpack, "expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x" + last_token, "string"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @brief reads a MessagePack byte array
+
+    This function first reads starting bytes to determine the expected
+    byte array length and then copies this number of bytes into a byte array.
+
+    @param[out] result  created byte array
+
+    @return whether byte array creation completed
+    */
+    bool get_msgpack_binary(binary_t& result)
+    {
+        // helper function to set the subtype
+        auto assign_and_return_true = [&result](std::int8_t subtype)
+        {
+            result.set_subtype(static_cast<std::uint8_t>(subtype));
+            return true;
+        };
+
+        switch (current)
+        {
+            case 0xC4: // bin 8
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::msgpack, len) &&
+                       get_binary(input_format_t::msgpack, len, result);
+            }
+
+            case 0xC5: // bin 16
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::msgpack, len) &&
+                       get_binary(input_format_t::msgpack, len, result);
+            }
+
+            case 0xC6: // bin 32
+            {
+                std::uint32_t len{};
+                return get_number(input_format_t::msgpack, len) &&
+                       get_binary(input_format_t::msgpack, len, result);
+            }
+
+            case 0xC7: // ext 8
+            {
+                std::uint8_t len{};
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, len) &&
+                       get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, len, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xC8: // ext 16
+            {
+                std::uint16_t len{};
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, len) &&
+                       get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, len, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xC9: // ext 32
+            {
+                std::uint32_t len{};
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, len) &&
+                       get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, len, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xD4: // fixext 1
+            {
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, 1, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xD5: // fixext 2
+            {
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, 2, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xD6: // fixext 4
+            {
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, 4, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xD7: // fixext 8
+            {
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, 8, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            case 0xD8: // fixext 16
+            {
+                std::int8_t subtype{};
+                return get_number(input_format_t::msgpack, subtype) &&
+                       get_binary(input_format_t::msgpack, 16, result) &&
+                       assign_and_return_true(subtype);
+            }
+
+            default:           // LCOV_EXCL_LINE
+                return false;  // LCOV_EXCL_LINE
+        }
+    }
+
+    /*!
+    @param[in] len  the length of the array
+    @return whether array creation completed
+    */
+    bool get_msgpack_array(const std::size_t len)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len)))
+        {
+            return false;
+        }
+
+        for (std::size_t i = 0; i < len; ++i)
+        {
+            if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal()))
+            {
+                return false;
+            }
+        }
+
+        return sax->end_array();
+    }
+
+    /*!
+    @param[in] len  the length of the object
+    @return whether object creation completed
+    */
+    bool get_msgpack_object(const std::size_t len)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len)))
+        {
+            return false;
+        }
+
+        string_t key;
+        for (std::size_t i = 0; i < len; ++i)
+        {
+            get();
+            if (JSON_HEDLEY_UNLIKELY(!get_msgpack_string(key) || !sax->key(key)))
+            {
+                return false;
+            }
+
+            if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal()))
+            {
+                return false;
+            }
+            key.clear();
+        }
+
+        return sax->end_object();
+    }
+
+    ////////////
+    // UBJSON //
+    ////////////
+
+    /*!
+    @param[in] get_char  whether a new character should be retrieved from the
+                         input (true, default) or whether the last read
+                         character should be considered instead
+
+    @return whether a valid UBJSON value was passed to the SAX parser
+    */
+    bool parse_ubjson_internal(const bool get_char = true)
+    {
+        return get_ubjson_value(get_char ? get_ignore_noop() : current);
+    }
+
+    /*!
+    @brief reads a UBJSON string
+
+    This function is either called after reading the 'S' byte explicitly
+    indicating a string, or in case of an object key where the 'S' byte can be
+    left out.
+
+    @param[out] result   created string
+    @param[in] get_char  whether a new character should be retrieved from the
+                         input (true, default) or whether the last read
+                         character should be considered instead
+
+    @return whether string creation completed
+    */
+    bool get_ubjson_string(string_t& result, const bool get_char = true)
+    {
+        if (get_char)
+        {
+            get();  // TODO(niels): may we ignore N here?
+        }
+
+        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value")))
+        {
+            return false;
+        }
+
+        switch (current)
+        {
+            case 'U':
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
+            }
+
+            case 'i':
+            {
+                std::int8_t len{};
+                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
+            }
+
+            case 'I':
+            {
+                std::int16_t len{};
+                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
+            }
+
+            case 'l':
+            {
+                std::int32_t len{};
+                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
+            }
+
+            case 'L':
+            {
+                std::int64_t len{};
+                return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result);
+            }
+
+            default:
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string"), BasicJsonType()));
+        }
+    }
+
+    /*!
+    @param[out] result  determined size
+    @return whether size determination completed
+    */
+    bool get_ubjson_size_value(std::size_t& result)
+    {
+        switch (get_ignore_noop())
+        {
+            case 'U':
+            {
+                std::uint8_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number)))
+                {
+                    return false;
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }
+
+            case 'i':
+            {
+                std::int8_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number)))
+                {
+                    return false;
+                }
+                result = static_cast<std::size_t>(number); // NOLINT(bugprone-signed-char-misuse,cert-str34-c): number is not a char
+                return true;
+            }
+
+            case 'I':
+            {
+                std::int16_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number)))
+                {
+                    return false;
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }
+
+            case 'l':
+            {
+                std::int32_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number)))
+                {
+                    return false;
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }
+
+            case 'L':
+            {
+                std::int64_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number)))
+                {
+                    return false;
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }
+
+            default:
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L) after '#'; last byte: 0x" + last_token, "size"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @brief determine the type and size for a container
+
+    In the optimized UBJSON format, a type and a size can be provided to allow
+    for a more compact representation.
+
+    @param[out] result  pair of the size and the type
+
+    @return whether pair creation completed
+    */
+    bool get_ubjson_size_type(std::pair<std::size_t, char_int_type>& result)
+    {
+        result.first = string_t::npos; // size
+        result.second = 0; // type
+
+        get_ignore_noop();
+
+        if (current == '$')
+        {
+            result.second = get();  // must not ignore 'N', because 'N' maybe the type
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "type")))
+            {
+                return false;
+            }
+
+            get_ignore_noop();
+            if (JSON_HEDLEY_UNLIKELY(current != '#'))
+            {
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value")))
+                {
+                    return false;
+                }
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "expected '#' after type information; last byte: 0x" + last_token, "size"), BasicJsonType()));
+            }
+
+            return get_ubjson_size_value(result.first);
+        }
+
+        if (current == '#')
+        {
+            return get_ubjson_size_value(result.first);
+        }
+
+        return true;
+    }
+
+    /*!
+    @param prefix  the previously read or set type prefix
+    @return whether value creation completed
+    */
+    bool get_ubjson_value(const char_int_type prefix)
+    {
+        switch (prefix)
+        {
+            case std::char_traits<char_type>::eof():  // EOF
+                return unexpect_eof(input_format_t::ubjson, "value");
+
+            case 'T':  // true
+                return sax->boolean(true);
+            case 'F':  // false
+                return sax->boolean(false);
+
+            case 'Z':  // null
+                return sax->null();
+
+            case 'U':
+            {
+                std::uint8_t number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_unsigned(number);
+            }
+
+            case 'i':
+            {
+                std::int8_t number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_integer(number);
+            }
+
+            case 'I':
+            {
+                std::int16_t number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_integer(number);
+            }
+
+            case 'l':
+            {
+                std::int32_t number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_integer(number);
+            }
+
+            case 'L':
+            {
+                std::int64_t number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_integer(number);
+            }
+
+            case 'd':
+            {
+                float number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            case 'D':
+            {
+                double number{};
+                return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast<number_float_t>(number), "");
+            }
+
+            case 'H':
+            {
+                return get_ubjson_high_precision_number();
+            }
+
+            case 'C':  // char
+            {
+                get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "char")))
+                {
+                    return false;
+                }
+                if (JSON_HEDLEY_UNLIKELY(current > 127))
+                {
+                    auto last_token = get_token_string();
+                    return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "byte after 'C' must be in range 0x00..0x7F; last byte: 0x" + last_token, "char"), BasicJsonType()));
+                }
+                string_t s(1, static_cast<typename string_t::value_type>(current));
+                return sax->string(s);
+            }
+
+            case 'S':  // string
+            {
+                string_t s;
+                return get_ubjson_string(s) && sax->string(s);
+            }
+
+            case '[':  // array
+                return get_ubjson_array();
+
+            case '{':  // object
+                return get_ubjson_object();
+
+            default: // anything else
+            {
+                auto last_token = get_token_string();
+                return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
+            }
+        }
+    }
+
+    /*!
+    @return whether array creation completed
+    */
+    bool get_ubjson_array()
+    {
+        std::pair<std::size_t, char_int_type> size_and_type;
+        if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type)))
+        {
+            return false;
+        }
+
+        if (size_and_type.first != string_t::npos)
+        {
+            if (JSON_HEDLEY_UNLIKELY(!sax->start_array(size_and_type.first)))
+            {
+                return false;
+            }
+
+            if (size_and_type.second != 0)
+            {
+                if (size_and_type.second != 'N')
+                {
+                    for (std::size_t i = 0; i < size_and_type.first; ++i)
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second)))
+                        {
+                            return false;
+                        }
+                    }
+                }
+            }
+            else
+            {
+                for (std::size_t i = 0; i < size_and_type.first; ++i)
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal()))
+                    {
+                        return false;
+                    }
+                }
+            }
+        }
+        else
+        {
+            if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1))))
+            {
+                return false;
+            }
+
+            while (current != ']')
+            {
+                if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal(false)))
+                {
+                    return false;
+                }
+                get_ignore_noop();
+            }
+        }
+
+        return sax->end_array();
+    }
+
+    /*!
+    @return whether object creation completed
+    */
+    bool get_ubjson_object()
+    {
+        std::pair<std::size_t, char_int_type> size_and_type;
+        if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type)))
+        {
+            return false;
+        }
+
+        string_t key;
+        if (size_and_type.first != string_t::npos)
+        {
+            if (JSON_HEDLEY_UNLIKELY(!sax->start_object(size_and_type.first)))
+            {
+                return false;
+            }
+
+            if (size_and_type.second != 0)
+            {
+                for (std::size_t i = 0; i < size_and_type.first; ++i)
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key)))
+                    {
+                        return false;
+                    }
+                    if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second)))
+                    {
+                        return false;
+                    }
+                    key.clear();
+                }
+            }
+            else
+            {
+                for (std::size_t i = 0; i < size_and_type.first; ++i)
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key)))
+                    {
+                        return false;
+                    }
+                    if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal()))
+                    {
+                        return false;
+                    }
+                    key.clear();
+                }
+            }
+        }
+        else
+        {
+            if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1))))
+            {
+                return false;
+            }
+
+            while (current != '}')
+            {
+                if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key, false) || !sax->key(key)))
+                {
+                    return false;
+                }
+                if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal()))
+                {
+                    return false;
+                }
+                get_ignore_noop();
+                key.clear();
+            }
+        }
+
+        return sax->end_object();
+    }
+
+    // Note, no reader for UBJSON binary types is implemented because they do
+    // not exist
+
+    bool get_ubjson_high_precision_number()
+    {
+        // get size of following number string
+        std::size_t size{};
+        auto res = get_ubjson_size_value(size);
+        if (JSON_HEDLEY_UNLIKELY(!res))
+        {
+            return res;
+        }
+
+        // get number string
+        std::vector<char> number_vector;
+        for (std::size_t i = 0; i < size; ++i)
+        {
+            get();
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "number")))
+            {
+                return false;
+            }
+            number_vector.push_back(static_cast<char>(current));
+        }
+
+        // parse number string
+        using ia_type = decltype(detail::input_adapter(number_vector));
+        auto number_lexer = detail::lexer<BasicJsonType, ia_type>(detail::input_adapter(number_vector), false);
+        const auto result_number = number_lexer.scan();
+        const auto number_string = number_lexer.get_token_string();
+        const auto result_remainder = number_lexer.scan();
+
+        using token_type = typename detail::lexer_base<BasicJsonType>::token_type;
+
+        if (JSON_HEDLEY_UNLIKELY(result_remainder != token_type::end_of_input))
+        {
+            return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType()));
+        }
+
+        switch (result_number)
+        {
+            case token_type::value_integer:
+                return sax->number_integer(number_lexer.get_number_integer());
+            case token_type::value_unsigned:
+                return sax->number_unsigned(number_lexer.get_number_unsigned());
+            case token_type::value_float:
+                return sax->number_float(number_lexer.get_number_float(), std::move(number_string));
+            case token_type::uninitialized:
+            case token_type::literal_true:
+            case token_type::literal_false:
+            case token_type::literal_null:
+            case token_type::value_string:
+            case token_type::begin_array:
+            case token_type::begin_object:
+            case token_type::end_array:
+            case token_type::end_object:
+            case token_type::name_separator:
+            case token_type::value_separator:
+            case token_type::parse_error:
+            case token_type::end_of_input:
+            case token_type::literal_or_value:
+            default:
+                return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType()));
+        }
+    }
+
+    ///////////////////////
+    // Utility functions //
+    ///////////////////////
+
+    /*!
+    @brief get next character from the input
+
+    This function provides the interface to the used input adapter. It does
+    not throw in case the input reached EOF, but returns a -'ve valued
+    `std::char_traits<char_type>::eof()` in that case.
+
+    @return character read from the input
+    */
+    char_int_type get()
+    {
+        ++chars_read;
+        return current = ia.get_character();
+    }
+
+    /*!
+    @return character read from the input after ignoring all 'N' entries
+    */
+    char_int_type get_ignore_noop()
+    {
+        do
+        {
+            get();
+        }
+        while (current == 'N');
+
+        return current;
+    }
+
+    /*
+    @brief read a number from the input
+
+    @tparam NumberType the type of the number
+    @param[in] format   the current format (for diagnostics)
+    @param[out] result  number of type @a NumberType
+
+    @return whether conversion completed
+
+    @note This function needs to respect the system's endianess, because
+          bytes in CBOR, MessagePack, and UBJSON are stored in network order
+          (big endian) and therefore need reordering on little endian systems.
+    */
+    template<typename NumberType, bool InputIsLittleEndian = false>
+    bool get_number(const input_format_t format, NumberType& result)
+    {
+        // step 1: read input into array with system's byte order
+        std::array<std::uint8_t, sizeof(NumberType)> vec{};
+        for (std::size_t i = 0; i < sizeof(NumberType); ++i)
+        {
+            get();
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "number")))
+            {
+                return false;
+            }
+
+            // reverse byte order prior to conversion if necessary
+            if (is_little_endian != InputIsLittleEndian)
+            {
+                vec[sizeof(NumberType) - i - 1] = static_cast<std::uint8_t>(current);
+            }
+            else
+            {
+                vec[i] = static_cast<std::uint8_t>(current); // LCOV_EXCL_LINE
+            }
+        }
+
+        // step 2: convert array into number of type T and return
+        std::memcpy(&result, vec.data(), sizeof(NumberType));
+        return true;
+    }
+
+    /*!
+    @brief create a string by reading characters from the input
+
+    @tparam NumberType the type of the number
+    @param[in] format the current format (for diagnostics)
+    @param[in] len number of characters to read
+    @param[out] result string created by reading @a len bytes
+
+    @return whether string creation completed
+
+    @note We can not reserve @a len bytes for the result, because @a len
+          may be too large. Usually, @ref unexpect_eof() detects the end of
+          the input before we run out of string memory.
+    */
+    template<typename NumberType>
+    bool get_string(const input_format_t format,
+                    const NumberType len,
+                    string_t& result)
+    {
+        bool success = true;
+        for (NumberType i = 0; i < len; i++)
+        {
+            get();
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "string")))
+            {
+                success = false;
+                break;
+            }
+            result.push_back(static_cast<typename string_t::value_type>(current));
+        }
+        return success;
+    }
+
+    /*!
+    @brief create a byte array by reading bytes from the input
+
+    @tparam NumberType the type of the number
+    @param[in] format the current format (for diagnostics)
+    @param[in] len number of bytes to read
+    @param[out] result byte array created by reading @a len bytes
+
+    @return whether byte array creation completed
+
+    @note We can not reserve @a len bytes for the result, because @a len
+          may be too large. Usually, @ref unexpect_eof() detects the end of
+          the input before we run out of memory.
+    */
+    template<typename NumberType>
+    bool get_binary(const input_format_t format,
+                    const NumberType len,
+                    binary_t& result)
+    {
+        bool success = true;
+        for (NumberType i = 0; i < len; i++)
+        {
+            get();
+            if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "binary")))
+            {
+                success = false;
+                break;
+            }
+            result.push_back(static_cast<std::uint8_t>(current));
+        }
+        return success;
+    }
+
+    /*!
+    @param[in] format   the current format (for diagnostics)
+    @param[in] context  further context information (for diagnostics)
+    @return whether the last read character is not EOF
+    */
+    JSON_HEDLEY_NON_NULL(3)
+    bool unexpect_eof(const input_format_t format, const char* context) const
+    {
+        if (JSON_HEDLEY_UNLIKELY(current == std::char_traits<char_type>::eof()))
+        {
+            return sax->parse_error(chars_read, "<end of file>",
+                                    parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context), BasicJsonType()));
+        }
+        return true;
+    }
+
+    /*!
+    @return a string representation of the last read byte
+    */
+    std::string get_token_string() const
+    {
+        std::array<char, 3> cr{{}};
+        (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast<unsigned char>(current)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+        return std::string{cr.data()};
+    }
+
+    /*!
+    @param[in] format   the current format
+    @param[in] detail   a detailed error message
+    @param[in] context  further context information
+    @return a message string to use in the parse_error exceptions
+    */
+    std::string exception_message(const input_format_t format,
+                                  const std::string& detail,
+                                  const std::string& context) const
+    {
+        std::string error_msg = "syntax error while parsing ";
+
+        switch (format)
+        {
+            case input_format_t::cbor:
+                error_msg += "CBOR";
+                break;
+
+            case input_format_t::msgpack:
+                error_msg += "MessagePack";
+                break;
+
+            case input_format_t::ubjson:
+                error_msg += "UBJSON";
+                break;
+
+            case input_format_t::bson:
+                error_msg += "BSON";
+                break;
+
+            case input_format_t::json: // LCOV_EXCL_LINE
+            default:            // LCOV_EXCL_LINE
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+        }
+
+        return error_msg + " " + context + ": " + detail;
+    }
+
+  private:
+    /// input adapter
+    InputAdapterType ia;
+
+    /// the current character
+    char_int_type current = std::char_traits<char_type>::eof();
+
+    /// the number of characters read
+    std::size_t chars_read = 0;
+
+    /// whether we can assume little endianess
+    const bool is_little_endian = little_endianess();
+
+    /// the SAX parser
+    json_sax_t* sax = nullptr;
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/input/input_adapters.hpp>
+
+// #include <nlohmann/detail/input/lexer.hpp>
+
+// #include <nlohmann/detail/input/parser.hpp>
+
+
+#include <cmath> // isfinite
+#include <cstdint> // uint8_t
+#include <functional> // function
+#include <string> // string
+#include <utility> // move
+#include <vector> // vector
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/input/input_adapters.hpp>
+
+// #include <nlohmann/detail/input/json_sax.hpp>
+
+// #include <nlohmann/detail/input/lexer.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/meta/is_sax.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+////////////
+// parser //
+////////////
+
+enum class parse_event_t : std::uint8_t
+{
+    /// the parser read `{` and started to process a JSON object
+    object_start,
+    /// the parser read `}` and finished processing a JSON object
+    object_end,
+    /// the parser read `[` and started to process a JSON array
+    array_start,
+    /// the parser read `]` and finished processing a JSON array
+    array_end,
+    /// the parser read a key of a value in an object
+    key,
+    /// the parser finished reading a JSON value
+    value
+};
+
+template<typename BasicJsonType>
+using parser_callback_t =
+    std::function<bool(int /*depth*/, parse_event_t /*event*/, BasicJsonType& /*parsed*/)>;
+
+/*!
+@brief syntax analysis
+
+This class implements a recursive descent parser.
+*/
+template<typename BasicJsonType, typename InputAdapterType>
+class parser
+{
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using string_t = typename BasicJsonType::string_t;
+    using lexer_t = lexer<BasicJsonType, InputAdapterType>;
+    using token_type = typename lexer_t::token_type;
+
+  public:
+    /// a parser reading from an input adapter
+    explicit parser(InputAdapterType&& adapter,
+                    const parser_callback_t<BasicJsonType> cb = nullptr,
+                    const bool allow_exceptions_ = true,
+                    const bool skip_comments = false)
+        : callback(cb)
+        , m_lexer(std::move(adapter), skip_comments)
+        , allow_exceptions(allow_exceptions_)
+    {
+        // read first token
+        get_token();
+    }
+
+    /*!
+    @brief public parser interface
+
+    @param[in] strict      whether to expect the last token to be EOF
+    @param[in,out] result  parsed JSON value
+
+    @throw parse_error.101 in case of an unexpected token
+    @throw parse_error.102 if to_unicode fails or surrogate error
+    @throw parse_error.103 if to_unicode fails
+    */
+    void parse(const bool strict, BasicJsonType& result)
+    {
+        if (callback)
+        {
+            json_sax_dom_callback_parser<BasicJsonType> sdp(result, callback, allow_exceptions);
+            sax_parse_internal(&sdp);
+
+            // in strict mode, input must be completely read
+            if (strict && (get_token() != token_type::end_of_input))
+            {
+                sdp.parse_error(m_lexer.get_position(),
+                                m_lexer.get_token_string(),
+                                parse_error::create(101, m_lexer.get_position(),
+                                                    exception_message(token_type::end_of_input, "value"), BasicJsonType()));
+            }
+
+            // in case of an error, return discarded value
+            if (sdp.is_errored())
+            {
+                result = value_t::discarded;
+                return;
+            }
+
+            // set top-level value to null if it was discarded by the callback
+            // function
+            if (result.is_discarded())
+            {
+                result = nullptr;
+            }
+        }
+        else
+        {
+            json_sax_dom_parser<BasicJsonType> sdp(result, allow_exceptions);
+            sax_parse_internal(&sdp);
+
+            // in strict mode, input must be completely read
+            if (strict && (get_token() != token_type::end_of_input))
+            {
+                sdp.parse_error(m_lexer.get_position(),
+                                m_lexer.get_token_string(),
+                                parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType()));
+            }
+
+            // in case of an error, return discarded value
+            if (sdp.is_errored())
+            {
+                result = value_t::discarded;
+                return;
+            }
+        }
+
+        result.assert_invariant();
+    }
+
+    /*!
+    @brief public accept interface
+
+    @param[in] strict  whether to expect the last token to be EOF
+    @return whether the input is a proper JSON text
+    */
+    bool accept(const bool strict = true)
+    {
+        json_sax_acceptor<BasicJsonType> sax_acceptor;
+        return sax_parse(&sax_acceptor, strict);
+    }
+
+    template<typename SAX>
+    JSON_HEDLEY_NON_NULL(2)
+    bool sax_parse(SAX* sax, const bool strict = true)
+    {
+        (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
+        const bool result = sax_parse_internal(sax);
+
+        // strict mode: next byte must be EOF
+        if (result && strict && (get_token() != token_type::end_of_input))
+        {
+            return sax->parse_error(m_lexer.get_position(),
+                                    m_lexer.get_token_string(),
+                                    parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType()));
+        }
+
+        return result;
+    }
+
+  private:
+    template<typename SAX>
+    JSON_HEDLEY_NON_NULL(2)
+    bool sax_parse_internal(SAX* sax)
+    {
+        // stack to remember the hierarchy of structured values we are parsing
+        // true = array; false = object
+        std::vector<bool> states;
+        // value to avoid a goto (see comment where set to true)
+        bool skip_to_state_evaluation = false;
+
+        while (true)
+        {
+            if (!skip_to_state_evaluation)
+            {
+                // invariant: get_token() was called before each iteration
+                switch (last_token)
+                {
+                    case token_type::begin_object:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1))))
+                        {
+                            return false;
+                        }
+
+                        // closing } -> we are done
+                        if (get_token() == token_type::end_object)
+                        {
+                            if (JSON_HEDLEY_UNLIKELY(!sax->end_object()))
+                            {
+                                return false;
+                            }
+                            break;
+                        }
+
+                        // parse key
+                        if (JSON_HEDLEY_UNLIKELY(last_token != token_type::value_string))
+                        {
+                            return sax->parse_error(m_lexer.get_position(),
+                                                    m_lexer.get_token_string(),
+                                                    parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType()));
+                        }
+                        if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string())))
+                        {
+                            return false;
+                        }
+
+                        // parse separator (:)
+                        if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator))
+                        {
+                            return sax->parse_error(m_lexer.get_position(),
+                                                    m_lexer.get_token_string(),
+                                                    parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType()));
+                        }
+
+                        // remember we are now inside an object
+                        states.push_back(false);
+
+                        // parse values
+                        get_token();
+                        continue;
+                    }
+
+                    case token_type::begin_array:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1))))
+                        {
+                            return false;
+                        }
+
+                        // closing ] -> we are done
+                        if (get_token() == token_type::end_array)
+                        {
+                            if (JSON_HEDLEY_UNLIKELY(!sax->end_array()))
+                            {
+                                return false;
+                            }
+                            break;
+                        }
+
+                        // remember we are now inside an array
+                        states.push_back(true);
+
+                        // parse values (no need to call get_token)
+                        continue;
+                    }
+
+                    case token_type::value_float:
+                    {
+                        const auto res = m_lexer.get_number_float();
+
+                        if (JSON_HEDLEY_UNLIKELY(!std::isfinite(res)))
+                        {
+                            return sax->parse_error(m_lexer.get_position(),
+                                                    m_lexer.get_token_string(),
+                                                    out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'", BasicJsonType()));
+                        }
+
+                        if (JSON_HEDLEY_UNLIKELY(!sax->number_float(res, m_lexer.get_string())))
+                        {
+                            return false;
+                        }
+
+                        break;
+                    }
+
+                    case token_type::literal_false:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->boolean(false)))
+                        {
+                            return false;
+                        }
+                        break;
+                    }
+
+                    case token_type::literal_null:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->null()))
+                        {
+                            return false;
+                        }
+                        break;
+                    }
+
+                    case token_type::literal_true:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->boolean(true)))
+                        {
+                            return false;
+                        }
+                        break;
+                    }
+
+                    case token_type::value_integer:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->number_integer(m_lexer.get_number_integer())))
+                        {
+                            return false;
+                        }
+                        break;
+                    }
+
+                    case token_type::value_string:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->string(m_lexer.get_string())))
+                        {
+                            return false;
+                        }
+                        break;
+                    }
+
+                    case token_type::value_unsigned:
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!sax->number_unsigned(m_lexer.get_number_unsigned())))
+                        {
+                            return false;
+                        }
+                        break;
+                    }
+
+                    case token_type::parse_error:
+                    {
+                        // using "uninitialized" to avoid "expected" message
+                        return sax->parse_error(m_lexer.get_position(),
+                                                m_lexer.get_token_string(),
+                                                parse_error::create(101, m_lexer.get_position(), exception_message(token_type::uninitialized, "value"), BasicJsonType()));
+                    }
+
+                    case token_type::uninitialized:
+                    case token_type::end_array:
+                    case token_type::end_object:
+                    case token_type::name_separator:
+                    case token_type::value_separator:
+                    case token_type::end_of_input:
+                    case token_type::literal_or_value:
+                    default: // the last token was unexpected
+                    {
+                        return sax->parse_error(m_lexer.get_position(),
+                                                m_lexer.get_token_string(),
+                                                parse_error::create(101, m_lexer.get_position(), exception_message(token_type::literal_or_value, "value"), BasicJsonType()));
+                    }
+                }
+            }
+            else
+            {
+                skip_to_state_evaluation = false;
+            }
+
+            // we reached this line after we successfully parsed a value
+            if (states.empty())
+            {
+                // empty stack: we reached the end of the hierarchy: done
+                return true;
+            }
+
+            if (states.back())  // array
+            {
+                // comma -> next value
+                if (get_token() == token_type::value_separator)
+                {
+                    // parse a new value
+                    get_token();
+                    continue;
+                }
+
+                // closing ]
+                if (JSON_HEDLEY_LIKELY(last_token == token_type::end_array))
+                {
+                    if (JSON_HEDLEY_UNLIKELY(!sax->end_array()))
+                    {
+                        return false;
+                    }
+
+                    // We are done with this array. Before we can parse a
+                    // new value, we need to evaluate the new state first.
+                    // By setting skip_to_state_evaluation to false, we
+                    // are effectively jumping to the beginning of this if.
+                    JSON_ASSERT(!states.empty());
+                    states.pop_back();
+                    skip_to_state_evaluation = true;
+                    continue;
+                }
+
+                return sax->parse_error(m_lexer.get_position(),
+                                        m_lexer.get_token_string(),
+                                        parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_array, "array"), BasicJsonType()));
+            }
+
+            // states.back() is false -> object
+
+            // comma -> next value
+            if (get_token() == token_type::value_separator)
+            {
+                // parse key
+                if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::value_string))
+                {
+                    return sax->parse_error(m_lexer.get_position(),
+                                            m_lexer.get_token_string(),
+                                            parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType()));
+                }
+
+                if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string())))
+                {
+                    return false;
+                }
+
+                // parse separator (:)
+                if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator))
+                {
+                    return sax->parse_error(m_lexer.get_position(),
+                                            m_lexer.get_token_string(),
+                                            parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType()));
+                }
+
+                // parse values
+                get_token();
+                continue;
+            }
+
+            // closing }
+            if (JSON_HEDLEY_LIKELY(last_token == token_type::end_object))
+            {
+                if (JSON_HEDLEY_UNLIKELY(!sax->end_object()))
+                {
+                    return false;
+                }
+
+                // We are done with this object. Before we can parse a
+                // new value, we need to evaluate the new state first.
+                // By setting skip_to_state_evaluation to false, we
+                // are effectively jumping to the beginning of this if.
+                JSON_ASSERT(!states.empty());
+                states.pop_back();
+                skip_to_state_evaluation = true;
+                continue;
+            }
+
+            return sax->parse_error(m_lexer.get_position(),
+                                    m_lexer.get_token_string(),
+                                    parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_object, "object"), BasicJsonType()));
+        }
+    }
+
+    /// get next token from lexer
+    token_type get_token()
+    {
+        return last_token = m_lexer.scan();
+    }
+
+    std::string exception_message(const token_type expected, const std::string& context)
+    {
+        std::string error_msg = "syntax error ";
+
+        if (!context.empty())
+        {
+            error_msg += "while parsing " + context + " ";
+        }
+
+        error_msg += "- ";
+
+        if (last_token == token_type::parse_error)
+        {
+            error_msg += std::string(m_lexer.get_error_message()) + "; last read: '" +
+                         m_lexer.get_token_string() + "'";
+        }
+        else
+        {
+            error_msg += "unexpected " + std::string(lexer_t::token_type_name(last_token));
+        }
+
+        if (expected != token_type::uninitialized)
+        {
+            error_msg += "; expected " + std::string(lexer_t::token_type_name(expected));
+        }
+
+        return error_msg;
+    }
+
+  private:
+    /// callback function
+    const parser_callback_t<BasicJsonType> callback = nullptr;
+    /// the type of the last read token
+    token_type last_token = token_type::uninitialized;
+    /// the lexer
+    lexer_t m_lexer;
+    /// whether to throw exceptions in case of errors
+    const bool allow_exceptions = true;
+};
+
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/iterators/internal_iterator.hpp>
+
+
+// #include <nlohmann/detail/iterators/primitive_iterator.hpp>
+
+
+#include <cstddef> // ptrdiff_t
+#include <limits>  // numeric_limits
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+/*
+@brief an iterator for primitive JSON types
+
+This class models an iterator for primitive JSON types (boolean, number,
+string). It's only purpose is to allow the iterator/const_iterator classes
+to "iterate" over primitive values. Internally, the iterator is modeled by
+a `difference_type` variable. Value begin_value (`0`) models the begin,
+end_value (`1`) models past the end.
+*/
+class primitive_iterator_t
+{
+  private:
+    using difference_type = std::ptrdiff_t;
+    static constexpr difference_type begin_value = 0;
+    static constexpr difference_type end_value = begin_value + 1;
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    /// iterator as signed integer type
+    difference_type m_it = (std::numeric_limits<std::ptrdiff_t>::min)();
+
+  public:
+    constexpr difference_type get_value() const noexcept
+    {
+        return m_it;
+    }
+
+    /// set iterator to a defined beginning
+    void set_begin() noexcept
+    {
+        m_it = begin_value;
+    }
+
+    /// set iterator to a defined past the end
+    void set_end() noexcept
+    {
+        m_it = end_value;
+    }
+
+    /// return whether the iterator can be dereferenced
+    constexpr bool is_begin() const noexcept
+    {
+        return m_it == begin_value;
+    }
+
+    /// return whether the iterator is at end
+    constexpr bool is_end() const noexcept
+    {
+        return m_it == end_value;
+    }
+
+    friend constexpr bool operator==(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept
+    {
+        return lhs.m_it == rhs.m_it;
+    }
+
+    friend constexpr bool operator<(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept
+    {
+        return lhs.m_it < rhs.m_it;
+    }
+
+    primitive_iterator_t operator+(difference_type n) noexcept
+    {
+        auto result = *this;
+        result += n;
+        return result;
+    }
+
+    friend constexpr difference_type operator-(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept
+    {
+        return lhs.m_it - rhs.m_it;
+    }
+
+    primitive_iterator_t& operator++() noexcept
+    {
+        ++m_it;
+        return *this;
+    }
+
+    primitive_iterator_t const operator++(int) noexcept // NOLINT(readability-const-return-type)
+    {
+        auto result = *this;
+        ++m_it;
+        return result;
+    }
+
+    primitive_iterator_t& operator--() noexcept
+    {
+        --m_it;
+        return *this;
+    }
+
+    primitive_iterator_t const operator--(int) noexcept // NOLINT(readability-const-return-type)
+    {
+        auto result = *this;
+        --m_it;
+        return result;
+    }
+
+    primitive_iterator_t& operator+=(difference_type n) noexcept
+    {
+        m_it += n;
+        return *this;
+    }
+
+    primitive_iterator_t& operator-=(difference_type n) noexcept
+    {
+        m_it -= n;
+        return *this;
+    }
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+
+namespace nlohmann
+{
+namespace detail
+{
+/*!
+@brief an iterator value
+
+@note This structure could easily be a union, but MSVC currently does not allow
+unions members with complex constructors, see https://github.com/nlohmann/json/pull/105.
+*/
+template<typename BasicJsonType> struct internal_iterator
+{
+    /// iterator for JSON objects
+    typename BasicJsonType::object_t::iterator object_iterator {};
+    /// iterator for JSON arrays
+    typename BasicJsonType::array_t::iterator array_iterator {};
+    /// generic iterator for all other types
+    primitive_iterator_t primitive_iterator {};
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/iterators/iter_impl.hpp>
+
+
+#include <iterator> // iterator, random_access_iterator_tag, bidirectional_iterator_tag, advance, next
+#include <type_traits> // conditional, is_const, remove_const
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/iterators/internal_iterator.hpp>
+
+// #include <nlohmann/detail/iterators/primitive_iterator.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+// forward declare, to be able to friend it later on
+template<typename IteratorType> class iteration_proxy;
+template<typename IteratorType> class iteration_proxy_value;
+
+/*!
+@brief a template for a bidirectional iterator for the @ref basic_json class
+This class implements a both iterators (iterator and const_iterator) for the
+@ref basic_json class.
+@note An iterator is called *initialized* when a pointer to a JSON value has
+      been set (e.g., by a constructor or a copy assignment). If the iterator is
+      default-constructed, it is *uninitialized* and most methods are undefined.
+      **The library uses assertions to detect calls on uninitialized iterators.**
+@requirement The class satisfies the following concept requirements:
+-
+[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
+  The iterator that can be moved can be moved in both directions (i.e.
+  incremented and decremented).
+@since version 1.0.0, simplified in version 2.0.9, change to bidirectional
+       iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593)
+*/
+template<typename BasicJsonType>
+class iter_impl
+{
+    /// the iterator with BasicJsonType of different const-ness
+    using other_iter_impl = iter_impl<typename std::conditional<std::is_const<BasicJsonType>::value, typename std::remove_const<BasicJsonType>::type, const BasicJsonType>::type>;
+    /// allow basic_json to access private members
+    friend other_iter_impl;
+    friend BasicJsonType;
+    friend iteration_proxy<iter_impl>;
+    friend iteration_proxy_value<iter_impl>;
+
+    using object_t = typename BasicJsonType::object_t;
+    using array_t = typename BasicJsonType::array_t;
+    // make sure BasicJsonType is basic_json or const basic_json
+    static_assert(is_basic_json<typename std::remove_const<BasicJsonType>::type>::value,
+                  "iter_impl only accepts (const) basic_json");
+
+  public:
+
+    /// The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17.
+    /// The C++ Standard has never required user-defined iterators to derive from std::iterator.
+    /// A user-defined iterator should provide publicly accessible typedefs named
+    /// iterator_category, value_type, difference_type, pointer, and reference.
+    /// Note that value_type is required to be non-const, even for constant iterators.
+    using iterator_category = std::bidirectional_iterator_tag;
+
+    /// the type of the values when the iterator is dereferenced
+    using value_type = typename BasicJsonType::value_type;
+    /// a type to represent differences between iterators
+    using difference_type = typename BasicJsonType::difference_type;
+    /// defines a pointer to the type iterated over (value_type)
+    using pointer = typename std::conditional<std::is_const<BasicJsonType>::value,
+          typename BasicJsonType::const_pointer,
+          typename BasicJsonType::pointer>::type;
+    /// defines a reference to the type iterated over (value_type)
+    using reference =
+        typename std::conditional<std::is_const<BasicJsonType>::value,
+        typename BasicJsonType::const_reference,
+        typename BasicJsonType::reference>::type;
+
+    iter_impl() = default;
+    ~iter_impl() = default;
+    iter_impl(iter_impl&&) noexcept = default;
+    iter_impl& operator=(iter_impl&&) noexcept = default;
+
+    /*!
+    @brief constructor for a given JSON instance
+    @param[in] object  pointer to a JSON object for this iterator
+    @pre object != nullptr
+    @post The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    explicit iter_impl(pointer object) noexcept : m_object(object)
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                m_it.object_iterator = typename object_t::iterator();
+                break;
+            }
+
+            case value_t::array:
+            {
+                m_it.array_iterator = typename array_t::iterator();
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                m_it.primitive_iterator = primitive_iterator_t();
+                break;
+            }
+        }
+    }
+
+    /*!
+    @note The conventional copy constructor and copy assignment are implicitly
+          defined. Combined with the following converting constructor and
+          assignment, they support: (1) copy from iterator to iterator, (2)
+          copy from const iterator to const iterator, and (3) conversion from
+          iterator to const iterator. However conversion from const iterator
+          to iterator is not defined.
+    */
+
+    /*!
+    @brief const copy constructor
+    @param[in] other const iterator to copy from
+    @note This copy constructor had to be defined explicitly to circumvent a bug
+          occurring on msvc v19.0 compiler (VS 2015) debug build. For more
+          information refer to: https://github.com/nlohmann/json/issues/1608
+    */
+    iter_impl(const iter_impl<const BasicJsonType>& other) noexcept
+        : m_object(other.m_object), m_it(other.m_it)
+    {}
+
+    /*!
+    @brief converting assignment
+    @param[in] other const iterator to copy from
+    @return const/non-const iterator
+    @note It is not checked whether @a other is initialized.
+    */
+    iter_impl& operator=(const iter_impl<const BasicJsonType>& other) noexcept
+    {
+        if (&other != this)
+        {
+            m_object = other.m_object;
+            m_it = other.m_it;
+        }
+        return *this;
+    }
+
+    /*!
+    @brief converting constructor
+    @param[in] other  non-const iterator to copy from
+    @note It is not checked whether @a other is initialized.
+    */
+    iter_impl(const iter_impl<typename std::remove_const<BasicJsonType>::type>& other) noexcept
+        : m_object(other.m_object), m_it(other.m_it)
+    {}
+
+    /*!
+    @brief converting assignment
+    @param[in] other  non-const iterator to copy from
+    @return const/non-const iterator
+    @note It is not checked whether @a other is initialized.
+    */
+    iter_impl& operator=(const iter_impl<typename std::remove_const<BasicJsonType>::type>& other) noexcept // NOLINT(cert-oop54-cpp)
+    {
+        m_object = other.m_object;
+        m_it = other.m_it;
+        return *this;
+    }
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    /*!
+    @brief set the iterator to the first value
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    void set_begin() noexcept
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                m_it.object_iterator = m_object->m_value.object->begin();
+                break;
+            }
+
+            case value_t::array:
+            {
+                m_it.array_iterator = m_object->m_value.array->begin();
+                break;
+            }
+
+            case value_t::null:
+            {
+                // set to end so begin()==end() is true: null is empty
+                m_it.primitive_iterator.set_end();
+                break;
+            }
+
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                m_it.primitive_iterator.set_begin();
+                break;
+            }
+        }
+    }
+
+    /*!
+    @brief set the iterator past the last value
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    void set_end() noexcept
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                m_it.object_iterator = m_object->m_value.object->end();
+                break;
+            }
+
+            case value_t::array:
+            {
+                m_it.array_iterator = m_object->m_value.array->end();
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                m_it.primitive_iterator.set_end();
+                break;
+            }
+        }
+    }
+
+  public:
+    /*!
+    @brief return a reference to the value pointed to by the iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    reference operator*() const
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end());
+                return m_it.object_iterator->second;
+            }
+
+            case value_t::array:
+            {
+                JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end());
+                return *m_it.array_iterator;
+            }
+
+            case value_t::null:
+                JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object));
+
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin()))
+                {
+                    return *m_object;
+                }
+
+                JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object));
+            }
+        }
+    }
+
+    /*!
+    @brief dereference the iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    pointer operator->() const
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end());
+                return &(m_it.object_iterator->second);
+            }
+
+            case value_t::array:
+            {
+                JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end());
+                return &*m_it.array_iterator;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin()))
+                {
+                    return m_object;
+                }
+
+                JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object));
+            }
+        }
+    }
+
+    /*!
+    @brief post-increment (it++)
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl const operator++(int) // NOLINT(readability-const-return-type)
+    {
+        auto result = *this;
+        ++(*this);
+        return result;
+    }
+
+    /*!
+    @brief pre-increment (++it)
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl& operator++()
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                std::advance(m_it.object_iterator, 1);
+                break;
+            }
+
+            case value_t::array:
+            {
+                std::advance(m_it.array_iterator, 1);
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                ++m_it.primitive_iterator;
+                break;
+            }
+        }
+
+        return *this;
+    }
+
+    /*!
+    @brief post-decrement (it--)
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl const operator--(int) // NOLINT(readability-const-return-type)
+    {
+        auto result = *this;
+        --(*this);
+        return result;
+    }
+
+    /*!
+    @brief pre-decrement (--it)
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl& operator--()
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+            {
+                std::advance(m_it.object_iterator, -1);
+                break;
+            }
+
+            case value_t::array:
+            {
+                std::advance(m_it.array_iterator, -1);
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                --m_it.primitive_iterator;
+                break;
+            }
+        }
+
+        return *this;
+    }
+
+    /*!
+    @brief comparison: equal
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    template < typename IterImpl, detail::enable_if_t < (std::is_same<IterImpl, iter_impl>::value || std::is_same<IterImpl, other_iter_impl>::value), std::nullptr_t > = nullptr >
+    bool operator==(const IterImpl& other) const
+    {
+        // if objects are not the same, the comparison is undefined
+        if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object));
+        }
+
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+                return (m_it.object_iterator == other.m_it.object_iterator);
+
+            case value_t::array:
+                return (m_it.array_iterator == other.m_it.array_iterator);
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+                return (m_it.primitive_iterator == other.m_it.primitive_iterator);
+        }
+    }
+
+    /*!
+    @brief comparison: not equal
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    template < typename IterImpl, detail::enable_if_t < (std::is_same<IterImpl, iter_impl>::value || std::is_same<IterImpl, other_iter_impl>::value), std::nullptr_t > = nullptr >
+    bool operator!=(const IterImpl& other) const
+    {
+        return !operator==(other);
+    }
+
+    /*!
+    @brief comparison: smaller
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    bool operator<(const iter_impl& other) const
+    {
+        // if objects are not the same, the comparison is undefined
+        if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object));
+        }
+
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+                JSON_THROW(invalid_iterator::create(213, "cannot compare order of object iterators", *m_object));
+
+            case value_t::array:
+                return (m_it.array_iterator < other.m_it.array_iterator);
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+                return (m_it.primitive_iterator < other.m_it.primitive_iterator);
+        }
+    }
+
+    /*!
+    @brief comparison: less than or equal
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    bool operator<=(const iter_impl& other) const
+    {
+        return !other.operator < (*this);
+    }
+
+    /*!
+    @brief comparison: greater than
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    bool operator>(const iter_impl& other) const
+    {
+        return !operator<=(other);
+    }
+
+    /*!
+    @brief comparison: greater than or equal
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    bool operator>=(const iter_impl& other) const
+    {
+        return !operator<(other);
+    }
+
+    /*!
+    @brief add to iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl& operator+=(difference_type i)
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+                JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object));
+
+            case value_t::array:
+            {
+                std::advance(m_it.array_iterator, i);
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                m_it.primitive_iterator += i;
+                break;
+            }
+        }
+
+        return *this;
+    }
+
+    /*!
+    @brief subtract from iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl& operator-=(difference_type i)
+    {
+        return operator+=(-i);
+    }
+
+    /*!
+    @brief add to iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl operator+(difference_type i) const
+    {
+        auto result = *this;
+        result += i;
+        return result;
+    }
+
+    /*!
+    @brief addition of distance and iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    friend iter_impl operator+(difference_type i, const iter_impl& it)
+    {
+        auto result = it;
+        result += i;
+        return result;
+    }
+
+    /*!
+    @brief subtract from iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    iter_impl operator-(difference_type i) const
+    {
+        auto result = *this;
+        result -= i;
+        return result;
+    }
+
+    /*!
+    @brief return difference
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    difference_type operator-(const iter_impl& other) const
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+                JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object));
+
+            case value_t::array:
+                return m_it.array_iterator - other.m_it.array_iterator;
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+                return m_it.primitive_iterator - other.m_it.primitive_iterator;
+        }
+    }
+
+    /*!
+    @brief access to successor
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    reference operator[](difference_type n) const
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        switch (m_object->m_type)
+        {
+            case value_t::object:
+                JSON_THROW(invalid_iterator::create(208, "cannot use operator[] for object iterators", *m_object));
+
+            case value_t::array:
+                return *std::next(m_it.array_iterator, n);
+
+            case value_t::null:
+                JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object));
+
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.get_value() == -n))
+                {
+                    return *m_object;
+                }
+
+                JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object));
+            }
+        }
+    }
+
+    /*!
+    @brief return the key of an object iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    const typename object_t::key_type& key() const
+    {
+        JSON_ASSERT(m_object != nullptr);
+
+        if (JSON_HEDLEY_LIKELY(m_object->is_object()))
+        {
+            return m_it.object_iterator->first;
+        }
+
+        JSON_THROW(invalid_iterator::create(207, "cannot use key() for non-object iterators", *m_object));
+    }
+
+    /*!
+    @brief return the value of an iterator
+    @pre The iterator is initialized; i.e. `m_object != nullptr`.
+    */
+    reference value() const
+    {
+        return operator*();
+    }
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    /// associated JSON instance
+    pointer m_object = nullptr;
+    /// the actual iterator of the associated instance
+    internal_iterator<typename std::remove_const<BasicJsonType>::type> m_it {};
+};
+} // namespace detail
+} // namespace nlohmann
+
+// #include <nlohmann/detail/iterators/iteration_proxy.hpp>
+
+// #include <nlohmann/detail/iterators/json_reverse_iterator.hpp>
+
+
+#include <cstddef> // ptrdiff_t
+#include <iterator> // reverse_iterator
+#include <utility> // declval
+
+namespace nlohmann
+{
+namespace detail
+{
+//////////////////////
+// reverse_iterator //
+//////////////////////
+
+/*!
+@brief a template for a reverse iterator class
+
+@tparam Base the base iterator type to reverse. Valid types are @ref
+iterator (to create @ref reverse_iterator) and @ref const_iterator (to
+create @ref const_reverse_iterator).
+
+@requirement The class satisfies the following concept requirements:
+-
+[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
+  The iterator that can be moved can be moved in both directions (i.e.
+  incremented and decremented).
+- [OutputIterator](https://en.cppreference.com/w/cpp/named_req/OutputIterator):
+  It is possible to write to the pointed-to element (only if @a Base is
+  @ref iterator).
+
+@since version 1.0.0
+*/
+template<typename Base>
+class json_reverse_iterator : public std::reverse_iterator<Base>
+{
+  public:
+    using difference_type = std::ptrdiff_t;
+    /// shortcut to the reverse iterator adapter
+    using base_iterator = std::reverse_iterator<Base>;
+    /// the reference type for the pointed-to element
+    using reference = typename Base::reference;
+
+    /// create reverse iterator from iterator
+    explicit json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept
+        : base_iterator(it) {}
+
+    /// create reverse iterator from base class
+    explicit json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {}
+
+    /// post-increment (it++)
+    json_reverse_iterator const operator++(int) // NOLINT(readability-const-return-type)
+    {
+        return static_cast<json_reverse_iterator>(base_iterator::operator++(1));
+    }
+
+    /// pre-increment (++it)
+    json_reverse_iterator& operator++()
+    {
+        return static_cast<json_reverse_iterator&>(base_iterator::operator++());
+    }
+
+    /// post-decrement (it--)
+    json_reverse_iterator const operator--(int) // NOLINT(readability-const-return-type)
+    {
+        return static_cast<json_reverse_iterator>(base_iterator::operator--(1));
+    }
+
+    /// pre-decrement (--it)
+    json_reverse_iterator& operator--()
+    {
+        return static_cast<json_reverse_iterator&>(base_iterator::operator--());
+    }
+
+    /// add to iterator
+    json_reverse_iterator& operator+=(difference_type i)
+    {
+        return static_cast<json_reverse_iterator&>(base_iterator::operator+=(i));
+    }
+
+    /// add to iterator
+    json_reverse_iterator operator+(difference_type i) const
+    {
+        return static_cast<json_reverse_iterator>(base_iterator::operator+(i));
+    }
+
+    /// subtract from iterator
+    json_reverse_iterator operator-(difference_type i) const
+    {
+        return static_cast<json_reverse_iterator>(base_iterator::operator-(i));
+    }
+
+    /// return difference
+    difference_type operator-(const json_reverse_iterator& other) const
+    {
+        return base_iterator(*this) - base_iterator(other);
+    }
+
+    /// access to successor
+    reference operator[](difference_type n) const
+    {
+        return *(this->operator+(n));
+    }
+
+    /// return the key of an object iterator
+    auto key() const -> decltype(std::declval<Base>().key())
+    {
+        auto it = --this->base();
+        return it.key();
+    }
+
+    /// return the value of an iterator
+    reference value() const
+    {
+        auto it = --this->base();
+        return it.operator * ();
+    }
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/iterators/primitive_iterator.hpp>
+
+// #include <nlohmann/detail/json_pointer.hpp>
+
+
+#include <algorithm> // all_of
+#include <cctype> // isdigit
+#include <limits> // max
+#include <numeric> // accumulate
+#include <string> // string
+#include <utility> // move
+#include <vector> // vector
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/string_escape.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+template<typename BasicJsonType>
+class json_pointer
+{
+    // allow basic_json to access private members
+    NLOHMANN_BASIC_JSON_TPL_DECLARATION
+    friend class basic_json;
+
+  public:
+    /*!
+    @brief create JSON pointer
+
+    Create a JSON pointer according to the syntax described in
+    [Section 3 of RFC6901](https://tools.ietf.org/html/rfc6901#section-3).
+
+    @param[in] s  string representing the JSON pointer; if omitted, the empty
+                  string is assumed which references the whole JSON value
+
+    @throw parse_error.107 if the given JSON pointer @a s is nonempty and does
+                           not begin with a slash (`/`); see example below
+
+    @throw parse_error.108 if a tilde (`~`) in the given JSON pointer @a s is
+    not followed by `0` (representing `~`) or `1` (representing `/`); see
+    example below
+
+    @liveexample{The example shows the construction several valid JSON pointers
+    as well as the exceptional behavior.,json_pointer}
+
+    @since version 2.0.0
+    */
+    explicit json_pointer(const std::string& s = "")
+        : reference_tokens(split(s))
+    {}
+
+    /*!
+    @brief return a string representation of the JSON pointer
+
+    @invariant For each JSON pointer `ptr`, it holds:
+    @code {.cpp}
+    ptr == json_pointer(ptr.to_string());
+    @endcode
+
+    @return a string representation of the JSON pointer
+
+    @liveexample{The example shows the result of `to_string`.,json_pointer__to_string}
+
+    @since version 2.0.0
+    */
+    std::string to_string() const
+    {
+        return std::accumulate(reference_tokens.begin(), reference_tokens.end(),
+                               std::string{},
+                               [](const std::string & a, const std::string & b)
+        {
+            return a + "/" + detail::escape(b);
+        });
+    }
+
+    /// @copydoc to_string()
+    operator std::string() const
+    {
+        return to_string();
+    }
+
+    /*!
+    @brief append another JSON pointer at the end of this JSON pointer
+
+    @param[in] ptr  JSON pointer to append
+    @return JSON pointer with @a ptr appended
+
+    @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
+
+    @complexity Linear in the length of @a ptr.
+
+    @sa see @ref operator/=(std::string) to append a reference token
+    @sa see @ref operator/=(std::size_t) to append an array index
+    @sa see @ref operator/(const json_pointer&, const json_pointer&) for a binary operator
+
+    @since version 3.6.0
+    */
+    json_pointer& operator/=(const json_pointer& ptr)
+    {
+        reference_tokens.insert(reference_tokens.end(),
+                                ptr.reference_tokens.begin(),
+                                ptr.reference_tokens.end());
+        return *this;
+    }
+
+    /*!
+    @brief append an unescaped reference token at the end of this JSON pointer
+
+    @param[in] token  reference token to append
+    @return JSON pointer with @a token appended without escaping @a token
+
+    @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
+
+    @complexity Amortized constant.
+
+    @sa see @ref operator/=(const json_pointer&) to append a JSON pointer
+    @sa see @ref operator/=(std::size_t) to append an array index
+    @sa see @ref operator/(const json_pointer&, std::size_t) for a binary operator
+
+    @since version 3.6.0
+    */
+    json_pointer& operator/=(std::string token)
+    {
+        push_back(std::move(token));
+        return *this;
+    }
+
+    /*!
+    @brief append an array index at the end of this JSON pointer
+
+    @param[in] array_idx  array index to append
+    @return JSON pointer with @a array_idx appended
+
+    @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
+
+    @complexity Amortized constant.
+
+    @sa see @ref operator/=(const json_pointer&) to append a JSON pointer
+    @sa see @ref operator/=(std::string) to append a reference token
+    @sa see @ref operator/(const json_pointer&, std::string) for a binary operator
+
+    @since version 3.6.0
+    */
+    json_pointer& operator/=(std::size_t array_idx)
+    {
+        return *this /= std::to_string(array_idx);
+    }
+
+    /*!
+    @brief create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer
+
+    @param[in] lhs  JSON pointer
+    @param[in] rhs  JSON pointer
+    @return a new JSON pointer with @a rhs appended to @a lhs
+
+    @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary}
+
+    @complexity Linear in the length of @a lhs and @a rhs.
+
+    @sa see @ref operator/=(const json_pointer&) to append a JSON pointer
+
+    @since version 3.6.0
+    */
+    friend json_pointer operator/(const json_pointer& lhs,
+                                  const json_pointer& rhs)
+    {
+        return json_pointer(lhs) /= rhs;
+    }
+
+    /*!
+    @brief create a new JSON pointer by appending the unescaped token at the end of the JSON pointer
+
+    @param[in] ptr  JSON pointer
+    @param[in] token  reference token
+    @return a new JSON pointer with unescaped @a token appended to @a ptr
+
+    @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary}
+
+    @complexity Linear in the length of @a ptr.
+
+    @sa see @ref operator/=(std::string) to append a reference token
+
+    @since version 3.6.0
+    */
+    friend json_pointer operator/(const json_pointer& ptr, std::string token) // NOLINT(performance-unnecessary-value-param)
+    {
+        return json_pointer(ptr) /= std::move(token);
+    }
+
+    /*!
+    @brief create a new JSON pointer by appending the array-index-token at the end of the JSON pointer
+
+    @param[in] ptr  JSON pointer
+    @param[in] array_idx  array index
+    @return a new JSON pointer with @a array_idx appended to @a ptr
+
+    @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary}
+
+    @complexity Linear in the length of @a ptr.
+
+    @sa see @ref operator/=(std::size_t) to append an array index
+
+    @since version 3.6.0
+    */
+    friend json_pointer operator/(const json_pointer& ptr, std::size_t array_idx)
+    {
+        return json_pointer(ptr) /= array_idx;
+    }
+
+    /*!
+    @brief returns the parent of this JSON pointer
+
+    @return parent of this JSON pointer; in case this JSON pointer is the root,
+            the root itself is returned
+
+    @complexity Linear in the length of the JSON pointer.
+
+    @liveexample{The example shows the result of `parent_pointer` for different
+    JSON Pointers.,json_pointer__parent_pointer}
+
+    @since version 3.6.0
+    */
+    json_pointer parent_pointer() const
+    {
+        if (empty())
+        {
+            return *this;
+        }
+
+        json_pointer res = *this;
+        res.pop_back();
+        return res;
+    }
+
+    /*!
+    @brief remove last reference token
+
+    @pre not `empty()`
+
+    @liveexample{The example shows the usage of `pop_back`.,json_pointer__pop_back}
+
+    @complexity Constant.
+
+    @throw out_of_range.405 if JSON pointer has no parent
+
+    @since version 3.6.0
+    */
+    void pop_back()
+    {
+        if (JSON_HEDLEY_UNLIKELY(empty()))
+        {
+            JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType()));
+        }
+
+        reference_tokens.pop_back();
+    }
+
+    /*!
+    @brief return last reference token
+
+    @pre not `empty()`
+    @return last reference token
+
+    @liveexample{The example shows the usage of `back`.,json_pointer__back}
+
+    @complexity Constant.
+
+    @throw out_of_range.405 if JSON pointer has no parent
+
+    @since version 3.6.0
+    */
+    const std::string& back() const
+    {
+        if (JSON_HEDLEY_UNLIKELY(empty()))
+        {
+            JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType()));
+        }
+
+        return reference_tokens.back();
+    }
+
+    /*!
+    @brief append an unescaped token at the end of the reference pointer
+
+    @param[in] token  token to add
+
+    @complexity Amortized constant.
+
+    @liveexample{The example shows the result of `push_back` for different
+    JSON Pointers.,json_pointer__push_back}
+
+    @since version 3.6.0
+    */
+    void push_back(const std::string& token)
+    {
+        reference_tokens.push_back(token);
+    }
+
+    /// @copydoc push_back(const std::string&)
+    void push_back(std::string&& token)
+    {
+        reference_tokens.push_back(std::move(token));
+    }
+
+    /*!
+    @brief return whether pointer points to the root document
+
+    @return true iff the JSON pointer points to the root document
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @liveexample{The example shows the result of `empty` for different JSON
+    Pointers.,json_pointer__empty}
+
+    @since version 3.6.0
+    */
+    bool empty() const noexcept
+    {
+        return reference_tokens.empty();
+    }
+
+  private:
+    /*!
+    @param[in] s  reference token to be converted into an array index
+
+    @return integer representation of @a s
+
+    @throw parse_error.106  if an array index begins with '0'
+    @throw parse_error.109  if an array index begins not with a digit
+    @throw out_of_range.404 if string @a s could not be converted to an integer
+    @throw out_of_range.410 if an array index exceeds size_type
+    */
+    static typename BasicJsonType::size_type array_index(const std::string& s)
+    {
+        using size_type = typename BasicJsonType::size_type;
+
+        // error condition (cf. RFC 6901, Sect. 4)
+        if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && s[0] == '0'))
+        {
+            JSON_THROW(detail::parse_error::create(106, 0, "array index '" + s + "' must not begin with '0'", BasicJsonType()));
+        }
+
+        // error condition (cf. RFC 6901, Sect. 4)
+        if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && !(s[0] >= '1' && s[0] <= '9')))
+        {
+            JSON_THROW(detail::parse_error::create(109, 0, "array index '" + s + "' is not a number", BasicJsonType()));
+        }
+
+        std::size_t processed_chars = 0;
+        unsigned long long res = 0;  // NOLINT(runtime/int)
+        JSON_TRY
+        {
+            res = std::stoull(s, &processed_chars);
+        }
+        JSON_CATCH(std::out_of_range&)
+        {
+            JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType()));
+        }
+
+        // check if the string was completely read
+        if (JSON_HEDLEY_UNLIKELY(processed_chars != s.size()))
+        {
+            JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType()));
+        }
+
+        // only triggered on special platforms (like 32bit), see also
+        // https://github.com/nlohmann/json/pull/2203
+        if (res >= static_cast<unsigned long long>((std::numeric_limits<size_type>::max)()))  // NOLINT(runtime/int)
+        {
+            JSON_THROW(detail::out_of_range::create(410, "array index " + s + " exceeds size_type", BasicJsonType())); // LCOV_EXCL_LINE
+        }
+
+        return static_cast<size_type>(res);
+    }
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    json_pointer top() const
+    {
+        if (JSON_HEDLEY_UNLIKELY(empty()))
+        {
+            JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType()));
+        }
+
+        json_pointer result = *this;
+        result.reference_tokens = {reference_tokens[0]};
+        return result;
+    }
+
+  private:
+    /*!
+    @brief create and return a reference to the pointed to value
+
+    @complexity Linear in the number of reference tokens.
+
+    @throw parse_error.109 if array index is not a number
+    @throw type_error.313 if value cannot be unflattened
+    */
+    BasicJsonType& get_and_create(BasicJsonType& j) const
+    {
+        auto* result = &j;
+
+        // in case no reference tokens exist, return a reference to the JSON value
+        // j which will be overwritten by a primitive value
+        for (const auto& reference_token : reference_tokens)
+        {
+            switch (result->type())
+            {
+                case detail::value_t::null:
+                {
+                    if (reference_token == "0")
+                    {
+                        // start a new array if reference token is 0
+                        result = &result->operator[](0);
+                    }
+                    else
+                    {
+                        // start a new object otherwise
+                        result = &result->operator[](reference_token);
+                    }
+                    break;
+                }
+
+                case detail::value_t::object:
+                {
+                    // create an entry in the object
+                    result = &result->operator[](reference_token);
+                    break;
+                }
+
+                case detail::value_t::array:
+                {
+                    // create an entry in the array
+                    result = &result->operator[](array_index(reference_token));
+                    break;
+                }
+
+                /*
+                The following code is only reached if there exists a reference
+                token _and_ the current value is primitive. In this case, we have
+                an error situation, because primitive values may only occur as
+                single value; that is, with an empty list of reference tokens.
+                */
+                case detail::value_t::string:
+                case detail::value_t::boolean:
+                case detail::value_t::number_integer:
+                case detail::value_t::number_unsigned:
+                case detail::value_t::number_float:
+                case detail::value_t::binary:
+                case detail::value_t::discarded:
+                default:
+                    JSON_THROW(detail::type_error::create(313, "invalid value to unflatten", j));
+            }
+        }
+
+        return *result;
+    }
+
+    /*!
+    @brief return a reference to the pointed to value
+
+    @note This version does not throw if a value is not present, but tries to
+          create nested values instead. For instance, calling this function
+          with pointer `"/this/that"` on a null value is equivalent to calling
+          `operator[]("this").operator[]("that")` on that value, effectively
+          changing the null value to an object.
+
+    @param[in] ptr  a JSON value
+
+    @return reference to the JSON value pointed to by the JSON pointer
+
+    @complexity Linear in the length of the JSON pointer.
+
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    @throw out_of_range.404  if the JSON pointer can not be resolved
+    */
+    BasicJsonType& get_unchecked(BasicJsonType* ptr) const
+    {
+        for (const auto& reference_token : reference_tokens)
+        {
+            // convert null values to arrays or objects before continuing
+            if (ptr->is_null())
+            {
+                // check if reference token is a number
+                const bool nums =
+                    std::all_of(reference_token.begin(), reference_token.end(),
+                                [](const unsigned char x)
+                {
+                    return std::isdigit(x);
+                });
+
+                // change value to array for numbers or "-" or to object otherwise
+                *ptr = (nums || reference_token == "-")
+                       ? detail::value_t::array
+                       : detail::value_t::object;
+            }
+
+            switch (ptr->type())
+            {
+                case detail::value_t::object:
+                {
+                    // use unchecked object access
+                    ptr = &ptr->operator[](reference_token);
+                    break;
+                }
+
+                case detail::value_t::array:
+                {
+                    if (reference_token == "-")
+                    {
+                        // explicitly treat "-" as index beyond the end
+                        ptr = &ptr->operator[](ptr->m_value.array->size());
+                    }
+                    else
+                    {
+                        // convert array index to number; unchecked access
+                        ptr = &ptr->operator[](array_index(reference_token));
+                    }
+                    break;
+                }
+
+                case detail::value_t::null:
+                case detail::value_t::string:
+                case detail::value_t::boolean:
+                case detail::value_t::number_integer:
+                case detail::value_t::number_unsigned:
+                case detail::value_t::number_float:
+                case detail::value_t::binary:
+                case detail::value_t::discarded:
+                default:
+                    JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr));
+            }
+        }
+
+        return *ptr;
+    }
+
+    /*!
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    @throw out_of_range.402  if the array index '-' is used
+    @throw out_of_range.404  if the JSON pointer can not be resolved
+    */
+    BasicJsonType& get_checked(BasicJsonType* ptr) const
+    {
+        for (const auto& reference_token : reference_tokens)
+        {
+            switch (ptr->type())
+            {
+                case detail::value_t::object:
+                {
+                    // note: at performs range check
+                    ptr = &ptr->at(reference_token);
+                    break;
+                }
+
+                case detail::value_t::array:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
+                    {
+                        // "-" always fails the range check
+                        JSON_THROW(detail::out_of_range::create(402,
+                                                                "array index '-' (" + std::to_string(ptr->m_value.array->size()) +
+                                                                ") is out of range", *ptr));
+                    }
+
+                    // note: at performs range check
+                    ptr = &ptr->at(array_index(reference_token));
+                    break;
+                }
+
+                case detail::value_t::null:
+                case detail::value_t::string:
+                case detail::value_t::boolean:
+                case detail::value_t::number_integer:
+                case detail::value_t::number_unsigned:
+                case detail::value_t::number_float:
+                case detail::value_t::binary:
+                case detail::value_t::discarded:
+                default:
+                    JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr));
+            }
+        }
+
+        return *ptr;
+    }
+
+    /*!
+    @brief return a const reference to the pointed to value
+
+    @param[in] ptr  a JSON value
+
+    @return const reference to the JSON value pointed to by the JSON
+    pointer
+
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    @throw out_of_range.402  if the array index '-' is used
+    @throw out_of_range.404  if the JSON pointer can not be resolved
+    */
+    const BasicJsonType& get_unchecked(const BasicJsonType* ptr) const
+    {
+        for (const auto& reference_token : reference_tokens)
+        {
+            switch (ptr->type())
+            {
+                case detail::value_t::object:
+                {
+                    // use unchecked object access
+                    ptr = &ptr->operator[](reference_token);
+                    break;
+                }
+
+                case detail::value_t::array:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
+                    {
+                        // "-" cannot be used for const access
+                        JSON_THROW(detail::out_of_range::create(402, "array index '-' (" + std::to_string(ptr->m_value.array->size()) + ") is out of range", *ptr));
+                    }
+
+                    // use unchecked array access
+                    ptr = &ptr->operator[](array_index(reference_token));
+                    break;
+                }
+
+                case detail::value_t::null:
+                case detail::value_t::string:
+                case detail::value_t::boolean:
+                case detail::value_t::number_integer:
+                case detail::value_t::number_unsigned:
+                case detail::value_t::number_float:
+                case detail::value_t::binary:
+                case detail::value_t::discarded:
+                default:
+                    JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr));
+            }
+        }
+
+        return *ptr;
+    }
+
+    /*!
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    @throw out_of_range.402  if the array index '-' is used
+    @throw out_of_range.404  if the JSON pointer can not be resolved
+    */
+    const BasicJsonType& get_checked(const BasicJsonType* ptr) const
+    {
+        for (const auto& reference_token : reference_tokens)
+        {
+            switch (ptr->type())
+            {
+                case detail::value_t::object:
+                {
+                    // note: at performs range check
+                    ptr = &ptr->at(reference_token);
+                    break;
+                }
+
+                case detail::value_t::array:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
+                    {
+                        // "-" always fails the range check
+                        JSON_THROW(detail::out_of_range::create(402,
+                                                                "array index '-' (" + std::to_string(ptr->m_value.array->size()) +
+                                                                ") is out of range", *ptr));
+                    }
+
+                    // note: at performs range check
+                    ptr = &ptr->at(array_index(reference_token));
+                    break;
+                }
+
+                case detail::value_t::null:
+                case detail::value_t::string:
+                case detail::value_t::boolean:
+                case detail::value_t::number_integer:
+                case detail::value_t::number_unsigned:
+                case detail::value_t::number_float:
+                case detail::value_t::binary:
+                case detail::value_t::discarded:
+                default:
+                    JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr));
+            }
+        }
+
+        return *ptr;
+    }
+
+    /*!
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    */
+    bool contains(const BasicJsonType* ptr) const
+    {
+        for (const auto& reference_token : reference_tokens)
+        {
+            switch (ptr->type())
+            {
+                case detail::value_t::object:
+                {
+                    if (!ptr->contains(reference_token))
+                    {
+                        // we did not find the key in the object
+                        return false;
+                    }
+
+                    ptr = &ptr->operator[](reference_token);
+                    break;
+                }
+
+                case detail::value_t::array:
+                {
+                    if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
+                    {
+                        // "-" always fails the range check
+                        return false;
+                    }
+                    if (JSON_HEDLEY_UNLIKELY(reference_token.size() == 1 && !("0" <= reference_token && reference_token <= "9")))
+                    {
+                        // invalid char
+                        return false;
+                    }
+                    if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1))
+                    {
+                        if (JSON_HEDLEY_UNLIKELY(!('1' <= reference_token[0] && reference_token[0] <= '9')))
+                        {
+                            // first char should be between '1' and '9'
+                            return false;
+                        }
+                        for (std::size_t i = 1; i < reference_token.size(); i++)
+                        {
+                            if (JSON_HEDLEY_UNLIKELY(!('0' <= reference_token[i] && reference_token[i] <= '9')))
+                            {
+                                // other char should be between '0' and '9'
+                                return false;
+                            }
+                        }
+                    }
+
+                    const auto idx = array_index(reference_token);
+                    if (idx >= ptr->size())
+                    {
+                        // index out of range
+                        return false;
+                    }
+
+                    ptr = &ptr->operator[](idx);
+                    break;
+                }
+
+                case detail::value_t::null:
+                case detail::value_t::string:
+                case detail::value_t::boolean:
+                case detail::value_t::number_integer:
+                case detail::value_t::number_unsigned:
+                case detail::value_t::number_float:
+                case detail::value_t::binary:
+                case detail::value_t::discarded:
+                default:
+                {
+                    // we do not expect primitive values if there is still a
+                    // reference token to process
+                    return false;
+                }
+            }
+        }
+
+        // no reference token left means we found a primitive value
+        return true;
+    }
+
+    /*!
+    @brief split the string input to reference tokens
+
+    @note This function is only called by the json_pointer constructor.
+          All exceptions below are documented there.
+
+    @throw parse_error.107  if the pointer is not empty or begins with '/'
+    @throw parse_error.108  if character '~' is not followed by '0' or '1'
+    */
+    static std::vector<std::string> split(const std::string& reference_string)
+    {
+        std::vector<std::string> result;
+
+        // special case: empty reference string -> no reference tokens
+        if (reference_string.empty())
+        {
+            return result;
+        }
+
+        // check if nonempty reference string begins with slash
+        if (JSON_HEDLEY_UNLIKELY(reference_string[0] != '/'))
+        {
+            JSON_THROW(detail::parse_error::create(107, 1, "JSON pointer must be empty or begin with '/' - was: '" + reference_string + "'", BasicJsonType()));
+        }
+
+        // extract the reference tokens:
+        // - slash: position of the last read slash (or end of string)
+        // - start: position after the previous slash
+        for (
+            // search for the first slash after the first character
+            std::size_t slash = reference_string.find_first_of('/', 1),
+            // set the beginning of the first reference token
+            start = 1;
+            // we can stop if start == 0 (if slash == std::string::npos)
+            start != 0;
+            // set the beginning of the next reference token
+            // (will eventually be 0 if slash == std::string::npos)
+            start = (slash == std::string::npos) ? 0 : slash + 1,
+            // find next slash
+            slash = reference_string.find_first_of('/', start))
+        {
+            // use the text between the beginning of the reference token
+            // (start) and the last slash (slash).
+            auto reference_token = reference_string.substr(start, slash - start);
+
+            // check reference tokens are properly escaped
+            for (std::size_t pos = reference_token.find_first_of('~');
+                    pos != std::string::npos;
+                    pos = reference_token.find_first_of('~', pos + 1))
+            {
+                JSON_ASSERT(reference_token[pos] == '~');
+
+                // ~ must be followed by 0 or 1
+                if (JSON_HEDLEY_UNLIKELY(pos == reference_token.size() - 1 ||
+                                         (reference_token[pos + 1] != '0' &&
+                                          reference_token[pos + 1] != '1')))
+                {
+                    JSON_THROW(detail::parse_error::create(108, 0, "escape character '~' must be followed with '0' or '1'", BasicJsonType()));
+                }
+            }
+
+            // finally, store the reference token
+            detail::unescape(reference_token);
+            result.push_back(reference_token);
+        }
+
+        return result;
+    }
+
+  private:
+    /*!
+    @param[in] reference_string  the reference string to the current value
+    @param[in] value             the value to consider
+    @param[in,out] result        the result object to insert values to
+
+    @note Empty objects or arrays are flattened to `null`.
+    */
+    static void flatten(const std::string& reference_string,
+                        const BasicJsonType& value,
+                        BasicJsonType& result)
+    {
+        switch (value.type())
+        {
+            case detail::value_t::array:
+            {
+                if (value.m_value.array->empty())
+                {
+                    // flatten empty array as null
+                    result[reference_string] = nullptr;
+                }
+                else
+                {
+                    // iterate array and use index as reference string
+                    for (std::size_t i = 0; i < value.m_value.array->size(); ++i)
+                    {
+                        flatten(reference_string + "/" + std::to_string(i),
+                                value.m_value.array->operator[](i), result);
+                    }
+                }
+                break;
+            }
+
+            case detail::value_t::object:
+            {
+                if (value.m_value.object->empty())
+                {
+                    // flatten empty object as null
+                    result[reference_string] = nullptr;
+                }
+                else
+                {
+                    // iterate object and use keys as reference string
+                    for (const auto& element : *value.m_value.object)
+                    {
+                        flatten(reference_string + "/" + detail::escape(element.first), element.second, result);
+                    }
+                }
+                break;
+            }
+
+            case detail::value_t::null:
+            case detail::value_t::string:
+            case detail::value_t::boolean:
+            case detail::value_t::number_integer:
+            case detail::value_t::number_unsigned:
+            case detail::value_t::number_float:
+            case detail::value_t::binary:
+            case detail::value_t::discarded:
+            default:
+            {
+                // add primitive value with its reference string
+                result[reference_string] = value;
+                break;
+            }
+        }
+    }
+
+    /*!
+    @param[in] value  flattened JSON
+
+    @return unflattened JSON
+
+    @throw parse_error.109 if array index is not a number
+    @throw type_error.314  if value is not an object
+    @throw type_error.315  if object values are not primitive
+    @throw type_error.313  if value cannot be unflattened
+    */
+    static BasicJsonType
+    unflatten(const BasicJsonType& value)
+    {
+        if (JSON_HEDLEY_UNLIKELY(!value.is_object()))
+        {
+            JSON_THROW(detail::type_error::create(314, "only objects can be unflattened", value));
+        }
+
+        BasicJsonType result;
+
+        // iterate the JSON object values
+        for (const auto& element : *value.m_value.object)
+        {
+            if (JSON_HEDLEY_UNLIKELY(!element.second.is_primitive()))
+            {
+                JSON_THROW(detail::type_error::create(315, "values in object must be primitive", element.second));
+            }
+
+            // assign value to reference pointed to by JSON pointer; Note that if
+            // the JSON pointer is "" (i.e., points to the whole value), function
+            // get_and_create returns a reference to result itself. An assignment
+            // will then create a primitive value.
+            json_pointer(element.first).get_and_create(result) = element.second;
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief compares two JSON pointers for equality
+
+    @param[in] lhs  JSON pointer to compare
+    @param[in] rhs  JSON pointer to compare
+    @return whether @a lhs is equal to @a rhs
+
+    @complexity Linear in the length of the JSON pointer
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+    */
+    friend bool operator==(json_pointer const& lhs,
+                           json_pointer const& rhs) noexcept
+    {
+        return lhs.reference_tokens == rhs.reference_tokens;
+    }
+
+    /*!
+    @brief compares two JSON pointers for inequality
+
+    @param[in] lhs  JSON pointer to compare
+    @param[in] rhs  JSON pointer to compare
+    @return whether @a lhs is not equal @a rhs
+
+    @complexity Linear in the length of the JSON pointer
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+    */
+    friend bool operator!=(json_pointer const& lhs,
+                           json_pointer const& rhs) noexcept
+    {
+        return !(lhs == rhs);
+    }
+
+    /// the reference tokens
+    std::vector<std::string> reference_tokens;
+};
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/json_ref.hpp>
+
+
+#include <initializer_list>
+#include <utility>
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+template<typename BasicJsonType>
+class json_ref
+{
+  public:
+    using value_type = BasicJsonType;
+
+    json_ref(value_type&& value)
+        : owned_value(std::move(value))
+    {}
+
+    json_ref(const value_type& value)
+        : value_ref(&value)
+    {}
+
+    json_ref(std::initializer_list<json_ref> init)
+        : owned_value(init)
+    {}
+
+    template <
+        class... Args,
+        enable_if_t<std::is_constructible<value_type, Args...>::value, int> = 0 >
+    json_ref(Args && ... args)
+        : owned_value(std::forward<Args>(args)...)
+    {}
+
+    // class should be movable only
+    json_ref(json_ref&&) noexcept = default;
+    json_ref(const json_ref&) = delete;
+    json_ref& operator=(const json_ref&) = delete;
+    json_ref& operator=(json_ref&&) = delete;
+    ~json_ref() = default;
+
+    value_type moved_or_copied() const
+    {
+        if (value_ref == nullptr)
+        {
+            return std::move(owned_value);
+        }
+        return *value_ref;
+    }
+
+    value_type const& operator*() const
+    {
+        return value_ref ? *value_ref : owned_value;
+    }
+
+    value_type const* operator->() const
+    {
+        return &** this;
+    }
+
+  private:
+    mutable value_type owned_value = nullptr;
+    value_type const* value_ref = nullptr;
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/string_escape.hpp>
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+// #include <nlohmann/detail/meta/type_traits.hpp>
+
+// #include <nlohmann/detail/output/binary_writer.hpp>
+
+
+#include <algorithm> // reverse
+#include <array> // array
+#include <cmath> // isnan, isinf
+#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
+#include <cstring> // memcpy
+#include <limits> // numeric_limits
+#include <string> // string
+#include <utility> // move
+
+// #include <nlohmann/detail/input/binary_reader.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/output/output_adapters.hpp>
+
+
+#include <algorithm> // copy
+#include <cstddef> // size_t
+#include <iterator> // back_inserter
+#include <memory> // shared_ptr, make_shared
+#include <string> // basic_string
+#include <vector> // vector
+
+#ifndef JSON_NO_IO
+    #include <ios>      // streamsize
+    #include <ostream>  // basic_ostream
+#endif  // JSON_NO_IO
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+/// abstract output adapter interface
+template<typename CharType> struct output_adapter_protocol
+{
+    virtual void write_character(CharType c) = 0;
+    virtual void write_characters(const CharType* s, std::size_t length) = 0;
+    virtual ~output_adapter_protocol() = default;
+
+    output_adapter_protocol() = default;
+    output_adapter_protocol(const output_adapter_protocol&) = default;
+    output_adapter_protocol(output_adapter_protocol&&) noexcept = default;
+    output_adapter_protocol& operator=(const output_adapter_protocol&) = default;
+    output_adapter_protocol& operator=(output_adapter_protocol&&) noexcept = default;
+};
+
+/// a type to simplify interfaces
+template<typename CharType>
+using output_adapter_t = std::shared_ptr<output_adapter_protocol<CharType>>;
+
+/// output adapter for byte vectors
+template<typename CharType, typename AllocatorType = std::allocator<CharType>>
+class output_vector_adapter : public output_adapter_protocol<CharType>
+{
+  public:
+    explicit output_vector_adapter(std::vector<CharType, AllocatorType>& vec) noexcept
+        : v(vec)
+    {}
+
+    void write_character(CharType c) override
+    {
+        v.push_back(c);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    void write_characters(const CharType* s, std::size_t length) override
+    {
+        std::copy(s, s + length, std::back_inserter(v));
+    }
+
+  private:
+    std::vector<CharType, AllocatorType>& v;
+};
+
+#ifndef JSON_NO_IO
+/// output adapter for output streams
+template<typename CharType>
+class output_stream_adapter : public output_adapter_protocol<CharType>
+{
+  public:
+    explicit output_stream_adapter(std::basic_ostream<CharType>& s) noexcept
+        : stream(s)
+    {}
+
+    void write_character(CharType c) override
+    {
+        stream.put(c);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    void write_characters(const CharType* s, std::size_t length) override
+    {
+        stream.write(s, static_cast<std::streamsize>(length));
+    }
+
+  private:
+    std::basic_ostream<CharType>& stream;
+};
+#endif  // JSON_NO_IO
+
+/// output adapter for basic_string
+template<typename CharType, typename StringType = std::basic_string<CharType>>
+class output_string_adapter : public output_adapter_protocol<CharType>
+{
+  public:
+    explicit output_string_adapter(StringType& s) noexcept
+        : str(s)
+    {}
+
+    void write_character(CharType c) override
+    {
+        str.push_back(c);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    void write_characters(const CharType* s, std::size_t length) override
+    {
+        str.append(s, length);
+    }
+
+  private:
+    StringType& str;
+};
+
+template<typename CharType, typename StringType = std::basic_string<CharType>>
+class output_adapter
+{
+  public:
+    template<typename AllocatorType = std::allocator<CharType>>
+    output_adapter(std::vector<CharType, AllocatorType>& vec)
+        : oa(std::make_shared<output_vector_adapter<CharType, AllocatorType>>(vec)) {}
+
+#ifndef JSON_NO_IO
+    output_adapter(std::basic_ostream<CharType>& s)
+        : oa(std::make_shared<output_stream_adapter<CharType>>(s)) {}
+#endif  // JSON_NO_IO
+
+    output_adapter(StringType& s)
+        : oa(std::make_shared<output_string_adapter<CharType, StringType>>(s)) {}
+
+    operator output_adapter_t<CharType>()
+    {
+        return oa;
+    }
+
+  private:
+    output_adapter_t<CharType> oa = nullptr;
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+
+namespace nlohmann
+{
+namespace detail
+{
+///////////////////
+// binary writer //
+///////////////////
+
+/*!
+@brief serialization to CBOR and MessagePack values
+*/
+template<typename BasicJsonType, typename CharType>
+class binary_writer
+{
+    using string_t = typename BasicJsonType::string_t;
+    using binary_t = typename BasicJsonType::binary_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+
+  public:
+    /*!
+    @brief create a binary writer
+
+    @param[in] adapter  output adapter to write to
+    */
+    explicit binary_writer(output_adapter_t<CharType> adapter) : oa(std::move(adapter))
+    {
+        JSON_ASSERT(oa);
+    }
+
+    /*!
+    @param[in] j  JSON value to serialize
+    @pre       j.type() == value_t::object
+    */
+    void write_bson(const BasicJsonType& j)
+    {
+        switch (j.type())
+        {
+            case value_t::object:
+            {
+                write_bson_object(*j.m_value.object);
+                break;
+            }
+
+            case value_t::null:
+            case value_t::array:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name()), j));
+            }
+        }
+    }
+
+    /*!
+    @param[in] j  JSON value to serialize
+    */
+    void write_cbor(const BasicJsonType& j)
+    {
+        switch (j.type())
+        {
+            case value_t::null:
+            {
+                oa->write_character(to_char_type(0xF6));
+                break;
+            }
+
+            case value_t::boolean:
+            {
+                oa->write_character(j.m_value.boolean
+                                    ? to_char_type(0xF5)
+                                    : to_char_type(0xF4));
+                break;
+            }
+
+            case value_t::number_integer:
+            {
+                if (j.m_value.number_integer >= 0)
+                {
+                    // CBOR does not differentiate between positive signed
+                    // integers and unsigned integers. Therefore, we used the
+                    // code from the value_t::number_unsigned case here.
+                    if (j.m_value.number_integer <= 0x17)
+                    {
+                        write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer <= (std::numeric_limits<std::uint8_t>::max)())
+                    {
+                        oa->write_character(to_char_type(0x18));
+                        write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer <= (std::numeric_limits<std::uint16_t>::max)())
+                    {
+                        oa->write_character(to_char_type(0x19));
+                        write_number(static_cast<std::uint16_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer <= (std::numeric_limits<std::uint32_t>::max)())
+                    {
+                        oa->write_character(to_char_type(0x1A));
+                        write_number(static_cast<std::uint32_t>(j.m_value.number_integer));
+                    }
+                    else
+                    {
+                        oa->write_character(to_char_type(0x1B));
+                        write_number(static_cast<std::uint64_t>(j.m_value.number_integer));
+                    }
+                }
+                else
+                {
+                    // The conversions below encode the sign in the first
+                    // byte, and the value is converted to a positive number.
+                    const auto positive_number = -1 - j.m_value.number_integer;
+                    if (j.m_value.number_integer >= -24)
+                    {
+                        write_number(static_cast<std::uint8_t>(0x20 + positive_number));
+                    }
+                    else if (positive_number <= (std::numeric_limits<std::uint8_t>::max)())
+                    {
+                        oa->write_character(to_char_type(0x38));
+                        write_number(static_cast<std::uint8_t>(positive_number));
+                    }
+                    else if (positive_number <= (std::numeric_limits<std::uint16_t>::max)())
+                    {
+                        oa->write_character(to_char_type(0x39));
+                        write_number(static_cast<std::uint16_t>(positive_number));
+                    }
+                    else if (positive_number <= (std::numeric_limits<std::uint32_t>::max)())
+                    {
+                        oa->write_character(to_char_type(0x3A));
+                        write_number(static_cast<std::uint32_t>(positive_number));
+                    }
+                    else
+                    {
+                        oa->write_character(to_char_type(0x3B));
+                        write_number(static_cast<std::uint64_t>(positive_number));
+                    }
+                }
+                break;
+            }
+
+            case value_t::number_unsigned:
+            {
+                if (j.m_value.number_unsigned <= 0x17)
+                {
+                    write_number(static_cast<std::uint8_t>(j.m_value.number_unsigned));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x18));
+                    write_number(static_cast<std::uint8_t>(j.m_value.number_unsigned));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x19));
+                    write_number(static_cast<std::uint16_t>(j.m_value.number_unsigned));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x1A));
+                    write_number(static_cast<std::uint32_t>(j.m_value.number_unsigned));
+                }
+                else
+                {
+                    oa->write_character(to_char_type(0x1B));
+                    write_number(static_cast<std::uint64_t>(j.m_value.number_unsigned));
+                }
+                break;
+            }
+
+            case value_t::number_float:
+            {
+                if (std::isnan(j.m_value.number_float))
+                {
+                    // NaN is 0xf97e00 in CBOR
+                    oa->write_character(to_char_type(0xF9));
+                    oa->write_character(to_char_type(0x7E));
+                    oa->write_character(to_char_type(0x00));
+                }
+                else if (std::isinf(j.m_value.number_float))
+                {
+                    // Infinity is 0xf97c00, -Infinity is 0xf9fc00
+                    oa->write_character(to_char_type(0xf9));
+                    oa->write_character(j.m_value.number_float > 0 ? to_char_type(0x7C) : to_char_type(0xFC));
+                    oa->write_character(to_char_type(0x00));
+                }
+                else
+                {
+                    write_compact_float(j.m_value.number_float, detail::input_format_t::cbor);
+                }
+                break;
+            }
+
+            case value_t::string:
+            {
+                // step 1: write control byte and the string length
+                const auto N = j.m_value.string->size();
+                if (N <= 0x17)
+                {
+                    write_number(static_cast<std::uint8_t>(0x60 + N));
+                }
+                else if (N <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x78));
+                    write_number(static_cast<std::uint8_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x79));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x7A));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+                // LCOV_EXCL_START
+                else if (N <= (std::numeric_limits<std::uint64_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x7B));
+                    write_number(static_cast<std::uint64_t>(N));
+                }
+                // LCOV_EXCL_STOP
+
+                // step 2: write the string
+                oa->write_characters(
+                    reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
+                    j.m_value.string->size());
+                break;
+            }
+
+            case value_t::array:
+            {
+                // step 1: write control byte and the array size
+                const auto N = j.m_value.array->size();
+                if (N <= 0x17)
+                {
+                    write_number(static_cast<std::uint8_t>(0x80 + N));
+                }
+                else if (N <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x98));
+                    write_number(static_cast<std::uint8_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x99));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x9A));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+                // LCOV_EXCL_START
+                else if (N <= (std::numeric_limits<std::uint64_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x9B));
+                    write_number(static_cast<std::uint64_t>(N));
+                }
+                // LCOV_EXCL_STOP
+
+                // step 2: write each element
+                for (const auto& el : *j.m_value.array)
+                {
+                    write_cbor(el);
+                }
+                break;
+            }
+
+            case value_t::binary:
+            {
+                if (j.m_value.binary->has_subtype())
+                {
+                    if (j.m_value.binary->subtype() <= (std::numeric_limits<std::uint8_t>::max)())
+                    {
+                        write_number(static_cast<std::uint8_t>(0xd8));
+                        write_number(static_cast<std::uint8_t>(j.m_value.binary->subtype()));
+                    }
+                    else if (j.m_value.binary->subtype() <= (std::numeric_limits<std::uint16_t>::max)())
+                    {
+                        write_number(static_cast<std::uint8_t>(0xd9));
+                        write_number(static_cast<std::uint16_t>(j.m_value.binary->subtype()));
+                    }
+                    else if (j.m_value.binary->subtype() <= (std::numeric_limits<std::uint32_t>::max)())
+                    {
+                        write_number(static_cast<std::uint8_t>(0xda));
+                        write_number(static_cast<std::uint32_t>(j.m_value.binary->subtype()));
+                    }
+                    else if (j.m_value.binary->subtype() <= (std::numeric_limits<std::uint64_t>::max)())
+                    {
+                        write_number(static_cast<std::uint8_t>(0xdb));
+                        write_number(static_cast<std::uint64_t>(j.m_value.binary->subtype()));
+                    }
+                }
+
+                // step 1: write control byte and the binary array size
+                const auto N = j.m_value.binary->size();
+                if (N <= 0x17)
+                {
+                    write_number(static_cast<std::uint8_t>(0x40 + N));
+                }
+                else if (N <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x58));
+                    write_number(static_cast<std::uint8_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x59));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x5A));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+                // LCOV_EXCL_START
+                else if (N <= (std::numeric_limits<std::uint64_t>::max)())
+                {
+                    oa->write_character(to_char_type(0x5B));
+                    write_number(static_cast<std::uint64_t>(N));
+                }
+                // LCOV_EXCL_STOP
+
+                // step 2: write each element
+                oa->write_characters(
+                    reinterpret_cast<const CharType*>(j.m_value.binary->data()),
+                    N);
+
+                break;
+            }
+
+            case value_t::object:
+            {
+                // step 1: write control byte and the object size
+                const auto N = j.m_value.object->size();
+                if (N <= 0x17)
+                {
+                    write_number(static_cast<std::uint8_t>(0xA0 + N));
+                }
+                else if (N <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    oa->write_character(to_char_type(0xB8));
+                    write_number(static_cast<std::uint8_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    oa->write_character(to_char_type(0xB9));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    oa->write_character(to_char_type(0xBA));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+                // LCOV_EXCL_START
+                else if (N <= (std::numeric_limits<std::uint64_t>::max)())
+                {
+                    oa->write_character(to_char_type(0xBB));
+                    write_number(static_cast<std::uint64_t>(N));
+                }
+                // LCOV_EXCL_STOP
+
+                // step 2: write each element
+                for (const auto& el : *j.m_value.object)
+                {
+                    write_cbor(el.first);
+                    write_cbor(el.second);
+                }
+                break;
+            }
+
+            case value_t::discarded:
+            default:
+                break;
+        }
+    }
+
+    /*!
+    @param[in] j  JSON value to serialize
+    */
+    void write_msgpack(const BasicJsonType& j)
+    {
+        switch (j.type())
+        {
+            case value_t::null: // nil
+            {
+                oa->write_character(to_char_type(0xC0));
+                break;
+            }
+
+            case value_t::boolean: // true and false
+            {
+                oa->write_character(j.m_value.boolean
+                                    ? to_char_type(0xC3)
+                                    : to_char_type(0xC2));
+                break;
+            }
+
+            case value_t::number_integer:
+            {
+                if (j.m_value.number_integer >= 0)
+                {
+                    // MessagePack does not differentiate between positive
+                    // signed integers and unsigned integers. Therefore, we used
+                    // the code from the value_t::number_unsigned case here.
+                    if (j.m_value.number_unsigned < 128)
+                    {
+                        // positive fixnum
+                        write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint8_t>::max)())
+                    {
+                        // uint 8
+                        oa->write_character(to_char_type(0xCC));
+                        write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint16_t>::max)())
+                    {
+                        // uint 16
+                        oa->write_character(to_char_type(0xCD));
+                        write_number(static_cast<std::uint16_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint32_t>::max)())
+                    {
+                        // uint 32
+                        oa->write_character(to_char_type(0xCE));
+                        write_number(static_cast<std::uint32_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint64_t>::max)())
+                    {
+                        // uint 64
+                        oa->write_character(to_char_type(0xCF));
+                        write_number(static_cast<std::uint64_t>(j.m_value.number_integer));
+                    }
+                }
+                else
+                {
+                    if (j.m_value.number_integer >= -32)
+                    {
+                        // negative fixnum
+                        write_number(static_cast<std::int8_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer >= (std::numeric_limits<std::int8_t>::min)() &&
+                             j.m_value.number_integer <= (std::numeric_limits<std::int8_t>::max)())
+                    {
+                        // int 8
+                        oa->write_character(to_char_type(0xD0));
+                        write_number(static_cast<std::int8_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer >= (std::numeric_limits<std::int16_t>::min)() &&
+                             j.m_value.number_integer <= (std::numeric_limits<std::int16_t>::max)())
+                    {
+                        // int 16
+                        oa->write_character(to_char_type(0xD1));
+                        write_number(static_cast<std::int16_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer >= (std::numeric_limits<std::int32_t>::min)() &&
+                             j.m_value.number_integer <= (std::numeric_limits<std::int32_t>::max)())
+                    {
+                        // int 32
+                        oa->write_character(to_char_type(0xD2));
+                        write_number(static_cast<std::int32_t>(j.m_value.number_integer));
+                    }
+                    else if (j.m_value.number_integer >= (std::numeric_limits<std::int64_t>::min)() &&
+                             j.m_value.number_integer <= (std::numeric_limits<std::int64_t>::max)())
+                    {
+                        // int 64
+                        oa->write_character(to_char_type(0xD3));
+                        write_number(static_cast<std::int64_t>(j.m_value.number_integer));
+                    }
+                }
+                break;
+            }
+
+            case value_t::number_unsigned:
+            {
+                if (j.m_value.number_unsigned < 128)
+                {
+                    // positive fixnum
+                    write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    // uint 8
+                    oa->write_character(to_char_type(0xCC));
+                    write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    // uint 16
+                    oa->write_character(to_char_type(0xCD));
+                    write_number(static_cast<std::uint16_t>(j.m_value.number_integer));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    // uint 32
+                    oa->write_character(to_char_type(0xCE));
+                    write_number(static_cast<std::uint32_t>(j.m_value.number_integer));
+                }
+                else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint64_t>::max)())
+                {
+                    // uint 64
+                    oa->write_character(to_char_type(0xCF));
+                    write_number(static_cast<std::uint64_t>(j.m_value.number_integer));
+                }
+                break;
+            }
+
+            case value_t::number_float:
+            {
+                write_compact_float(j.m_value.number_float, detail::input_format_t::msgpack);
+                break;
+            }
+
+            case value_t::string:
+            {
+                // step 1: write control byte and the string length
+                const auto N = j.m_value.string->size();
+                if (N <= 31)
+                {
+                    // fixstr
+                    write_number(static_cast<std::uint8_t>(0xA0 | N));
+                }
+                else if (N <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    // str 8
+                    oa->write_character(to_char_type(0xD9));
+                    write_number(static_cast<std::uint8_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    // str 16
+                    oa->write_character(to_char_type(0xDA));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    // str 32
+                    oa->write_character(to_char_type(0xDB));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+
+                // step 2: write the string
+                oa->write_characters(
+                    reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
+                    j.m_value.string->size());
+                break;
+            }
+
+            case value_t::array:
+            {
+                // step 1: write control byte and the array size
+                const auto N = j.m_value.array->size();
+                if (N <= 15)
+                {
+                    // fixarray
+                    write_number(static_cast<std::uint8_t>(0x90 | N));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    // array 16
+                    oa->write_character(to_char_type(0xDC));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    // array 32
+                    oa->write_character(to_char_type(0xDD));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+
+                // step 2: write each element
+                for (const auto& el : *j.m_value.array)
+                {
+                    write_msgpack(el);
+                }
+                break;
+            }
+
+            case value_t::binary:
+            {
+                // step 0: determine if the binary type has a set subtype to
+                // determine whether or not to use the ext or fixext types
+                const bool use_ext = j.m_value.binary->has_subtype();
+
+                // step 1: write control byte and the byte string length
+                const auto N = j.m_value.binary->size();
+                if (N <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    std::uint8_t output_type{};
+                    bool fixed = true;
+                    if (use_ext)
+                    {
+                        switch (N)
+                        {
+                            case 1:
+                                output_type = 0xD4; // fixext 1
+                                break;
+                            case 2:
+                                output_type = 0xD5; // fixext 2
+                                break;
+                            case 4:
+                                output_type = 0xD6; // fixext 4
+                                break;
+                            case 8:
+                                output_type = 0xD7; // fixext 8
+                                break;
+                            case 16:
+                                output_type = 0xD8; // fixext 16
+                                break;
+                            default:
+                                output_type = 0xC7; // ext 8
+                                fixed = false;
+                                break;
+                        }
+
+                    }
+                    else
+                    {
+                        output_type = 0xC4; // bin 8
+                        fixed = false;
+                    }
+
+                    oa->write_character(to_char_type(output_type));
+                    if (!fixed)
+                    {
+                        write_number(static_cast<std::uint8_t>(N));
+                    }
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    std::uint8_t output_type = use_ext
+                                               ? 0xC8 // ext 16
+                                               : 0xC5; // bin 16
+
+                    oa->write_character(to_char_type(output_type));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    std::uint8_t output_type = use_ext
+                                               ? 0xC9 // ext 32
+                                               : 0xC6; // bin 32
+
+                    oa->write_character(to_char_type(output_type));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+
+                // step 1.5: if this is an ext type, write the subtype
+                if (use_ext)
+                {
+                    write_number(static_cast<std::int8_t>(j.m_value.binary->subtype()));
+                }
+
+                // step 2: write the byte string
+                oa->write_characters(
+                    reinterpret_cast<const CharType*>(j.m_value.binary->data()),
+                    N);
+
+                break;
+            }
+
+            case value_t::object:
+            {
+                // step 1: write control byte and the object size
+                const auto N = j.m_value.object->size();
+                if (N <= 15)
+                {
+                    // fixmap
+                    write_number(static_cast<std::uint8_t>(0x80 | (N & 0xF)));
+                }
+                else if (N <= (std::numeric_limits<std::uint16_t>::max)())
+                {
+                    // map 16
+                    oa->write_character(to_char_type(0xDE));
+                    write_number(static_cast<std::uint16_t>(N));
+                }
+                else if (N <= (std::numeric_limits<std::uint32_t>::max)())
+                {
+                    // map 32
+                    oa->write_character(to_char_type(0xDF));
+                    write_number(static_cast<std::uint32_t>(N));
+                }
+
+                // step 2: write each element
+                for (const auto& el : *j.m_value.object)
+                {
+                    write_msgpack(el.first);
+                    write_msgpack(el.second);
+                }
+                break;
+            }
+
+            case value_t::discarded:
+            default:
+                break;
+        }
+    }
+
+    /*!
+    @param[in] j  JSON value to serialize
+    @param[in] use_count   whether to use '#' prefixes (optimized format)
+    @param[in] use_type    whether to use '$' prefixes (optimized format)
+    @param[in] add_prefix  whether prefixes need to be used for this value
+    */
+    void write_ubjson(const BasicJsonType& j, const bool use_count,
+                      const bool use_type, const bool add_prefix = true)
+    {
+        switch (j.type())
+        {
+            case value_t::null:
+            {
+                if (add_prefix)
+                {
+                    oa->write_character(to_char_type('Z'));
+                }
+                break;
+            }
+
+            case value_t::boolean:
+            {
+                if (add_prefix)
+                {
+                    oa->write_character(j.m_value.boolean
+                                        ? to_char_type('T')
+                                        : to_char_type('F'));
+                }
+                break;
+            }
+
+            case value_t::number_integer:
+            {
+                write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix);
+                break;
+            }
+
+            case value_t::number_unsigned:
+            {
+                write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix);
+                break;
+            }
+
+            case value_t::number_float:
+            {
+                write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix);
+                break;
+            }
+
+            case value_t::string:
+            {
+                if (add_prefix)
+                {
+                    oa->write_character(to_char_type('S'));
+                }
+                write_number_with_ubjson_prefix(j.m_value.string->size(), true);
+                oa->write_characters(
+                    reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
+                    j.m_value.string->size());
+                break;
+            }
+
+            case value_t::array:
+            {
+                if (add_prefix)
+                {
+                    oa->write_character(to_char_type('['));
+                }
+
+                bool prefix_required = true;
+                if (use_type && !j.m_value.array->empty())
+                {
+                    JSON_ASSERT(use_count);
+                    const CharType first_prefix = ubjson_prefix(j.front());
+                    const bool same_prefix = std::all_of(j.begin() + 1, j.end(),
+                                                         [this, first_prefix](const BasicJsonType & v)
+                    {
+                        return ubjson_prefix(v) == first_prefix;
+                    });
+
+                    if (same_prefix)
+                    {
+                        prefix_required = false;
+                        oa->write_character(to_char_type('$'));
+                        oa->write_character(first_prefix);
+                    }
+                }
+
+                if (use_count)
+                {
+                    oa->write_character(to_char_type('#'));
+                    write_number_with_ubjson_prefix(j.m_value.array->size(), true);
+                }
+
+                for (const auto& el : *j.m_value.array)
+                {
+                    write_ubjson(el, use_count, use_type, prefix_required);
+                }
+
+                if (!use_count)
+                {
+                    oa->write_character(to_char_type(']'));
+                }
+
+                break;
+            }
+
+            case value_t::binary:
+            {
+                if (add_prefix)
+                {
+                    oa->write_character(to_char_type('['));
+                }
+
+                if (use_type && !j.m_value.binary->empty())
+                {
+                    JSON_ASSERT(use_count);
+                    oa->write_character(to_char_type('$'));
+                    oa->write_character('U');
+                }
+
+                if (use_count)
+                {
+                    oa->write_character(to_char_type('#'));
+                    write_number_with_ubjson_prefix(j.m_value.binary->size(), true);
+                }
+
+                if (use_type)
+                {
+                    oa->write_characters(
+                        reinterpret_cast<const CharType*>(j.m_value.binary->data()),
+                        j.m_value.binary->size());
+                }
+                else
+                {
+                    for (size_t i = 0; i < j.m_value.binary->size(); ++i)
+                    {
+                        oa->write_character(to_char_type('U'));
+                        oa->write_character(j.m_value.binary->data()[i]);
+                    }
+                }
+
+                if (!use_count)
+                {
+                    oa->write_character(to_char_type(']'));
+                }
+
+                break;
+            }
+
+            case value_t::object:
+            {
+                if (add_prefix)
+                {
+                    oa->write_character(to_char_type('{'));
+                }
+
+                bool prefix_required = true;
+                if (use_type && !j.m_value.object->empty())
+                {
+                    JSON_ASSERT(use_count);
+                    const CharType first_prefix = ubjson_prefix(j.front());
+                    const bool same_prefix = std::all_of(j.begin(), j.end(),
+                                                         [this, first_prefix](const BasicJsonType & v)
+                    {
+                        return ubjson_prefix(v) == first_prefix;
+                    });
+
+                    if (same_prefix)
+                    {
+                        prefix_required = false;
+                        oa->write_character(to_char_type('$'));
+                        oa->write_character(first_prefix);
+                    }
+                }
+
+                if (use_count)
+                {
+                    oa->write_character(to_char_type('#'));
+                    write_number_with_ubjson_prefix(j.m_value.object->size(), true);
+                }
+
+                for (const auto& el : *j.m_value.object)
+                {
+                    write_number_with_ubjson_prefix(el.first.size(), true);
+                    oa->write_characters(
+                        reinterpret_cast<const CharType*>(el.first.c_str()),
+                        el.first.size());
+                    write_ubjson(el.second, use_count, use_type, prefix_required);
+                }
+
+                if (!use_count)
+                {
+                    oa->write_character(to_char_type('}'));
+                }
+
+                break;
+            }
+
+            case value_t::discarded:
+            default:
+                break;
+        }
+    }
+
+  private:
+    //////////
+    // BSON //
+    //////////
+
+    /*!
+    @return The size of a BSON document entry header, including the id marker
+            and the entry name size (and its null-terminator).
+    */
+    static std::size_t calc_bson_entry_header_size(const string_t& name, const BasicJsonType& j)
+    {
+        const auto it = name.find(static_cast<typename string_t::value_type>(0));
+        if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos))
+        {
+            JSON_THROW(out_of_range::create(409, "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")", j));
+            static_cast<void>(j);
+        }
+
+        return /*id*/ 1ul + name.size() + /*zero-terminator*/1u;
+    }
+
+    /*!
+    @brief Writes the given @a element_type and @a name to the output adapter
+    */
+    void write_bson_entry_header(const string_t& name,
+                                 const std::uint8_t element_type)
+    {
+        oa->write_character(to_char_type(element_type)); // boolean
+        oa->write_characters(
+            reinterpret_cast<const CharType*>(name.c_str()),
+            name.size() + 1u);
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and boolean value @a value
+    */
+    void write_bson_boolean(const string_t& name,
+                            const bool value)
+    {
+        write_bson_entry_header(name, 0x08);
+        oa->write_character(value ? to_char_type(0x01) : to_char_type(0x00));
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and double value @a value
+    */
+    void write_bson_double(const string_t& name,
+                           const double value)
+    {
+        write_bson_entry_header(name, 0x01);
+        write_number<double, true>(value);
+    }
+
+    /*!
+    @return The size of the BSON-encoded string in @a value
+    */
+    static std::size_t calc_bson_string_size(const string_t& value)
+    {
+        return sizeof(std::int32_t) + value.size() + 1ul;
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and string value @a value
+    */
+    void write_bson_string(const string_t& name,
+                           const string_t& value)
+    {
+        write_bson_entry_header(name, 0x02);
+
+        write_number<std::int32_t, true>(static_cast<std::int32_t>(value.size() + 1ul));
+        oa->write_characters(
+            reinterpret_cast<const CharType*>(value.c_str()),
+            value.size() + 1);
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and null value
+    */
+    void write_bson_null(const string_t& name)
+    {
+        write_bson_entry_header(name, 0x0A);
+    }
+
+    /*!
+    @return The size of the BSON-encoded integer @a value
+    */
+    static std::size_t calc_bson_integer_size(const std::int64_t value)
+    {
+        return (std::numeric_limits<std::int32_t>::min)() <= value && value <= (std::numeric_limits<std::int32_t>::max)()
+               ? sizeof(std::int32_t)
+               : sizeof(std::int64_t);
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and integer @a value
+    */
+    void write_bson_integer(const string_t& name,
+                            const std::int64_t value)
+    {
+        if ((std::numeric_limits<std::int32_t>::min)() <= value && value <= (std::numeric_limits<std::int32_t>::max)())
+        {
+            write_bson_entry_header(name, 0x10); // int32
+            write_number<std::int32_t, true>(static_cast<std::int32_t>(value));
+        }
+        else
+        {
+            write_bson_entry_header(name, 0x12); // int64
+            write_number<std::int64_t, true>(static_cast<std::int64_t>(value));
+        }
+    }
+
+    /*!
+    @return The size of the BSON-encoded unsigned integer in @a j
+    */
+    static constexpr std::size_t calc_bson_unsigned_size(const std::uint64_t value) noexcept
+    {
+        return (value <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
+               ? sizeof(std::int32_t)
+               : sizeof(std::int64_t);
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and unsigned @a value
+    */
+    void write_bson_unsigned(const string_t& name,
+                             const BasicJsonType& j)
+    {
+        if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
+        {
+            write_bson_entry_header(name, 0x10 /* int32 */);
+            write_number<std::int32_t, true>(static_cast<std::int32_t>(j.m_value.number_unsigned));
+        }
+        else if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
+        {
+            write_bson_entry_header(name, 0x12 /* int64 */);
+            write_number<std::int64_t, true>(static_cast<std::int64_t>(j.m_value.number_unsigned));
+        }
+        else
+        {
+            JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(j.m_value.number_unsigned) + " cannot be represented by BSON as it does not fit int64", j));
+        }
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and object @a value
+    */
+    void write_bson_object_entry(const string_t& name,
+                                 const typename BasicJsonType::object_t& value)
+    {
+        write_bson_entry_header(name, 0x03); // object
+        write_bson_object(value);
+    }
+
+    /*!
+    @return The size of the BSON-encoded array @a value
+    */
+    static std::size_t calc_bson_array_size(const typename BasicJsonType::array_t& value)
+    {
+        std::size_t array_index = 0ul;
+
+        const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), std::size_t(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el)
+        {
+            return result + calc_bson_element_size(std::to_string(array_index++), el);
+        });
+
+        return sizeof(std::int32_t) + embedded_document_size + 1ul;
+    }
+
+    /*!
+    @return The size of the BSON-encoded binary array @a value
+    */
+    static std::size_t calc_bson_binary_size(const typename BasicJsonType::binary_t& value)
+    {
+        return sizeof(std::int32_t) + value.size() + 1ul;
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and array @a value
+    */
+    void write_bson_array(const string_t& name,
+                          const typename BasicJsonType::array_t& value)
+    {
+        write_bson_entry_header(name, 0x04); // array
+        write_number<std::int32_t, true>(static_cast<std::int32_t>(calc_bson_array_size(value)));
+
+        std::size_t array_index = 0ul;
+
+        for (const auto& el : value)
+        {
+            write_bson_element(std::to_string(array_index++), el);
+        }
+
+        oa->write_character(to_char_type(0x00));
+    }
+
+    /*!
+    @brief Writes a BSON element with key @a name and binary value @a value
+    */
+    void write_bson_binary(const string_t& name,
+                           const binary_t& value)
+    {
+        write_bson_entry_header(name, 0x05);
+
+        write_number<std::int32_t, true>(static_cast<std::int32_t>(value.size()));
+        write_number(value.has_subtype() ? static_cast<std::uint8_t>(value.subtype()) : std::uint8_t(0x00));
+
+        oa->write_characters(reinterpret_cast<const CharType*>(value.data()), value.size());
+    }
+
+    /*!
+    @brief Calculates the size necessary to serialize the JSON value @a j with its @a name
+    @return The calculated size for the BSON document entry for @a j with the given @a name.
+    */
+    static std::size_t calc_bson_element_size(const string_t& name,
+            const BasicJsonType& j)
+    {
+        const auto header_size = calc_bson_entry_header_size(name, j);
+        switch (j.type())
+        {
+            case value_t::object:
+                return header_size + calc_bson_object_size(*j.m_value.object);
+
+            case value_t::array:
+                return header_size + calc_bson_array_size(*j.m_value.array);
+
+            case value_t::binary:
+                return header_size + calc_bson_binary_size(*j.m_value.binary);
+
+            case value_t::boolean:
+                return header_size + 1ul;
+
+            case value_t::number_float:
+                return header_size + 8ul;
+
+            case value_t::number_integer:
+                return header_size + calc_bson_integer_size(j.m_value.number_integer);
+
+            case value_t::number_unsigned:
+                return header_size + calc_bson_unsigned_size(j.m_value.number_unsigned);
+
+            case value_t::string:
+                return header_size + calc_bson_string_size(*j.m_value.string);
+
+            case value_t::null:
+                return header_size + 0ul;
+
+            // LCOV_EXCL_START
+            case value_t::discarded:
+            default:
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert)
+                return 0ul;
+                // LCOV_EXCL_STOP
+        }
+    }
+
+    /*!
+    @brief Serializes the JSON value @a j to BSON and associates it with the
+           key @a name.
+    @param name The name to associate with the JSON entity @a j within the
+                current BSON document
+    */
+    void write_bson_element(const string_t& name,
+                            const BasicJsonType& j)
+    {
+        switch (j.type())
+        {
+            case value_t::object:
+                return write_bson_object_entry(name, *j.m_value.object);
+
+            case value_t::array:
+                return write_bson_array(name, *j.m_value.array);
+
+            case value_t::binary:
+                return write_bson_binary(name, *j.m_value.binary);
+
+            case value_t::boolean:
+                return write_bson_boolean(name, j.m_value.boolean);
+
+            case value_t::number_float:
+                return write_bson_double(name, j.m_value.number_float);
+
+            case value_t::number_integer:
+                return write_bson_integer(name, j.m_value.number_integer);
+
+            case value_t::number_unsigned:
+                return write_bson_unsigned(name, j);
+
+            case value_t::string:
+                return write_bson_string(name, *j.m_value.string);
+
+            case value_t::null:
+                return write_bson_null(name);
+
+            // LCOV_EXCL_START
+            case value_t::discarded:
+            default:
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert)
+                return;
+                // LCOV_EXCL_STOP
+        }
+    }
+
+    /*!
+    @brief Calculates the size of the BSON serialization of the given
+           JSON-object @a j.
+    @param[in] value  JSON value to serialize
+    @pre       value.type() == value_t::object
+    */
+    static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value)
+    {
+        std::size_t document_size = std::accumulate(value.begin(), value.end(), std::size_t(0),
+                                    [](size_t result, const typename BasicJsonType::object_t::value_type & el)
+        {
+            return result += calc_bson_element_size(el.first, el.second);
+        });
+
+        return sizeof(std::int32_t) + document_size + 1ul;
+    }
+
+    /*!
+    @param[in] value  JSON value to serialize
+    @pre       value.type() == value_t::object
+    */
+    void write_bson_object(const typename BasicJsonType::object_t& value)
+    {
+        write_number<std::int32_t, true>(static_cast<std::int32_t>(calc_bson_object_size(value)));
+
+        for (const auto& el : value)
+        {
+            write_bson_element(el.first, el.second);
+        }
+
+        oa->write_character(to_char_type(0x00));
+    }
+
+    //////////
+    // CBOR //
+    //////////
+
+    static constexpr CharType get_cbor_float_prefix(float /*unused*/)
+    {
+        return to_char_type(0xFA);  // Single-Precision Float
+    }
+
+    static constexpr CharType get_cbor_float_prefix(double /*unused*/)
+    {
+        return to_char_type(0xFB);  // Double-Precision Float
+    }
+
+    /////////////
+    // MsgPack //
+    /////////////
+
+    static constexpr CharType get_msgpack_float_prefix(float /*unused*/)
+    {
+        return to_char_type(0xCA);  // float 32
+    }
+
+    static constexpr CharType get_msgpack_float_prefix(double /*unused*/)
+    {
+        return to_char_type(0xCB);  // float 64
+    }
+
+    ////////////
+    // UBJSON //
+    ////////////
+
+    // UBJSON: write number (floating point)
+    template<typename NumberType, typename std::enable_if<
+                 std::is_floating_point<NumberType>::value, int>::type = 0>
+    void write_number_with_ubjson_prefix(const NumberType n,
+                                         const bool add_prefix)
+    {
+        if (add_prefix)
+        {
+            oa->write_character(get_ubjson_float_prefix(n));
+        }
+        write_number(n);
+    }
+
+    // UBJSON: write number (unsigned integer)
+    template<typename NumberType, typename std::enable_if<
+                 std::is_unsigned<NumberType>::value, int>::type = 0>
+    void write_number_with_ubjson_prefix(const NumberType n,
+                                         const bool add_prefix)
+    {
+        if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int8_t>::max)()))
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('i'));  // int8
+            }
+            write_number(static_cast<std::uint8_t>(n));
+        }
+        else if (n <= (std::numeric_limits<std::uint8_t>::max)())
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('U'));  // uint8
+            }
+            write_number(static_cast<std::uint8_t>(n));
+        }
+        else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int16_t>::max)()))
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('I'));  // int16
+            }
+            write_number(static_cast<std::int16_t>(n));
+        }
+        else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('l'));  // int32
+            }
+            write_number(static_cast<std::int32_t>(n));
+        }
+        else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('L'));  // int64
+            }
+            write_number(static_cast<std::int64_t>(n));
+        }
+        else
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('H'));  // high-precision number
+            }
+
+            const auto number = BasicJsonType(n).dump();
+            write_number_with_ubjson_prefix(number.size(), true);
+            for (std::size_t i = 0; i < number.size(); ++i)
+            {
+                oa->write_character(to_char_type(static_cast<std::uint8_t>(number[i])));
+            }
+        }
+    }
+
+    // UBJSON: write number (signed integer)
+    template < typename NumberType, typename std::enable_if <
+                   std::is_signed<NumberType>::value&&
+                   !std::is_floating_point<NumberType>::value, int >::type = 0 >
+    void write_number_with_ubjson_prefix(const NumberType n,
+                                         const bool add_prefix)
+    {
+        if ((std::numeric_limits<std::int8_t>::min)() <= n && n <= (std::numeric_limits<std::int8_t>::max)())
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('i'));  // int8
+            }
+            write_number(static_cast<std::int8_t>(n));
+        }
+        else if (static_cast<std::int64_t>((std::numeric_limits<std::uint8_t>::min)()) <= n && n <= static_cast<std::int64_t>((std::numeric_limits<std::uint8_t>::max)()))
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('U'));  // uint8
+            }
+            write_number(static_cast<std::uint8_t>(n));
+        }
+        else if ((std::numeric_limits<std::int16_t>::min)() <= n && n <= (std::numeric_limits<std::int16_t>::max)())
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('I'));  // int16
+            }
+            write_number(static_cast<std::int16_t>(n));
+        }
+        else if ((std::numeric_limits<std::int32_t>::min)() <= n && n <= (std::numeric_limits<std::int32_t>::max)())
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('l'));  // int32
+            }
+            write_number(static_cast<std::int32_t>(n));
+        }
+        else if ((std::numeric_limits<std::int64_t>::min)() <= n && n <= (std::numeric_limits<std::int64_t>::max)())
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('L'));  // int64
+            }
+            write_number(static_cast<std::int64_t>(n));
+        }
+        // LCOV_EXCL_START
+        else
+        {
+            if (add_prefix)
+            {
+                oa->write_character(to_char_type('H'));  // high-precision number
+            }
+
+            const auto number = BasicJsonType(n).dump();
+            write_number_with_ubjson_prefix(number.size(), true);
+            for (std::size_t i = 0; i < number.size(); ++i)
+            {
+                oa->write_character(to_char_type(static_cast<std::uint8_t>(number[i])));
+            }
+        }
+        // LCOV_EXCL_STOP
+    }
+
+    /*!
+    @brief determine the type prefix of container values
+    */
+    CharType ubjson_prefix(const BasicJsonType& j) const noexcept
+    {
+        switch (j.type())
+        {
+            case value_t::null:
+                return 'Z';
+
+            case value_t::boolean:
+                return j.m_value.boolean ? 'T' : 'F';
+
+            case value_t::number_integer:
+            {
+                if ((std::numeric_limits<std::int8_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::int8_t>::max)())
+                {
+                    return 'i';
+                }
+                if ((std::numeric_limits<std::uint8_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::uint8_t>::max)())
+                {
+                    return 'U';
+                }
+                if ((std::numeric_limits<std::int16_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::int16_t>::max)())
+                {
+                    return 'I';
+                }
+                if ((std::numeric_limits<std::int32_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::int32_t>::max)())
+                {
+                    return 'l';
+                }
+                if ((std::numeric_limits<std::int64_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::int64_t>::max)())
+                {
+                    return 'L';
+                }
+                // anything else is treated as high-precision number
+                return 'H'; // LCOV_EXCL_LINE
+            }
+
+            case value_t::number_unsigned:
+            {
+                if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int8_t>::max)()))
+                {
+                    return 'i';
+                }
+                if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::uint8_t>::max)()))
+                {
+                    return 'U';
+                }
+                if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int16_t>::max)()))
+                {
+                    return 'I';
+                }
+                if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
+                {
+                    return 'l';
+                }
+                if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
+                {
+                    return 'L';
+                }
+                // anything else is treated as high-precision number
+                return 'H'; // LCOV_EXCL_LINE
+            }
+
+            case value_t::number_float:
+                return get_ubjson_float_prefix(j.m_value.number_float);
+
+            case value_t::string:
+                return 'S';
+
+            case value_t::array: // fallthrough
+            case value_t::binary:
+                return '[';
+
+            case value_t::object:
+                return '{';
+
+            case value_t::discarded:
+            default:  // discarded values
+                return 'N';
+        }
+    }
+
+    static constexpr CharType get_ubjson_float_prefix(float /*unused*/)
+    {
+        return 'd';  // float 32
+    }
+
+    static constexpr CharType get_ubjson_float_prefix(double /*unused*/)
+    {
+        return 'D';  // float 64
+    }
+
+    ///////////////////////
+    // Utility functions //
+    ///////////////////////
+
+    /*
+    @brief write a number to output input
+    @param[in] n number of type @a NumberType
+    @tparam NumberType the type of the number
+    @tparam OutputIsLittleEndian Set to true if output data is
+                                 required to be little endian
+
+    @note This function needs to respect the system's endianess, because bytes
+          in CBOR, MessagePack, and UBJSON are stored in network order (big
+          endian) and therefore need reordering on little endian systems.
+    */
+    template<typename NumberType, bool OutputIsLittleEndian = false>
+    void write_number(const NumberType n)
+    {
+        // step 1: write number to array of length NumberType
+        std::array<CharType, sizeof(NumberType)> vec{};
+        std::memcpy(vec.data(), &n, sizeof(NumberType));
+
+        // step 2: write array to output (with possible reordering)
+        if (is_little_endian != OutputIsLittleEndian)
+        {
+            // reverse byte order prior to conversion if necessary
+            std::reverse(vec.begin(), vec.end());
+        }
+
+        oa->write_characters(vec.data(), sizeof(NumberType));
+    }
+
+    void write_compact_float(const number_float_t n, detail::input_format_t format)
+    {
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
+        if (static_cast<double>(n) >= static_cast<double>(std::numeric_limits<float>::lowest()) &&
+                static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) &&
+                static_cast<double>(static_cast<float>(n)) == static_cast<double>(n))
+        {
+            oa->write_character(format == detail::input_format_t::cbor
+                                ? get_cbor_float_prefix(static_cast<float>(n))
+                                : get_msgpack_float_prefix(static_cast<float>(n)));
+            write_number(static_cast<float>(n));
+        }
+        else
+        {
+            oa->write_character(format == detail::input_format_t::cbor
+                                ? get_cbor_float_prefix(n)
+                                : get_msgpack_float_prefix(n));
+            write_number(n);
+        }
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+    }
+
+  public:
+    // The following to_char_type functions are implement the conversion
+    // between uint8_t and CharType. In case CharType is not unsigned,
+    // such a conversion is required to allow values greater than 128.
+    // See <https://github.com/nlohmann/json/issues/1286> for a discussion.
+    template < typename C = CharType,
+               enable_if_t < std::is_signed<C>::value && std::is_signed<char>::value > * = nullptr >
+    static constexpr CharType to_char_type(std::uint8_t x) noexcept
+    {
+        return *reinterpret_cast<char*>(&x);
+    }
+
+    template < typename C = CharType,
+               enable_if_t < std::is_signed<C>::value && std::is_unsigned<char>::value > * = nullptr >
+    static CharType to_char_type(std::uint8_t x) noexcept
+    {
+        static_assert(sizeof(std::uint8_t) == sizeof(CharType), "size of CharType must be equal to std::uint8_t");
+        static_assert(std::is_trivial<CharType>::value, "CharType must be trivial");
+        CharType result;
+        std::memcpy(&result, &x, sizeof(x));
+        return result;
+    }
+
+    template<typename C = CharType,
+             enable_if_t<std::is_unsigned<C>::value>* = nullptr>
+    static constexpr CharType to_char_type(std::uint8_t x) noexcept
+    {
+        return x;
+    }
+
+    template < typename InputCharType, typename C = CharType,
+               enable_if_t <
+                   std::is_signed<C>::value &&
+                   std::is_signed<char>::value &&
+                   std::is_same<char, typename std::remove_cv<InputCharType>::type>::value
+                   > * = nullptr >
+    static constexpr CharType to_char_type(InputCharType x) noexcept
+    {
+        return x;
+    }
+
+  private:
+    /// whether we can assume little endianess
+    const bool is_little_endian = little_endianess();
+
+    /// the output
+    output_adapter_t<CharType> oa = nullptr;
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/output/output_adapters.hpp>
+
+// #include <nlohmann/detail/output/serializer.hpp>
+
+
+#include <algorithm> // reverse, remove, fill, find, none_of
+#include <array> // array
+#include <clocale> // localeconv, lconv
+#include <cmath> // labs, isfinite, isnan, signbit
+#include <cstddef> // size_t, ptrdiff_t
+#include <cstdint> // uint8_t
+#include <cstdio> // snprintf
+#include <limits> // numeric_limits
+#include <string> // string, char_traits
+#include <type_traits> // is_same
+#include <utility> // move
+
+// #include <nlohmann/detail/conversions/to_chars.hpp>
+
+
+#include <array> // array
+#include <cmath>   // signbit, isfinite
+#include <cstdint> // intN_t, uintN_t
+#include <cstring> // memcpy, memmove
+#include <limits> // numeric_limits
+#include <type_traits> // conditional
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+
+/*!
+@brief implements the Grisu2 algorithm for binary to decimal floating-point
+conversion.
+
+This implementation is a slightly modified version of the reference
+implementation which may be obtained from
+http://florian.loitsch.com/publications (bench.tar.gz).
+
+The code is distributed under the MIT license, Copyright (c) 2009 Florian Loitsch.
+
+For a detailed description of the algorithm see:
+
+[1] Loitsch, "Printing Floating-Point Numbers Quickly and Accurately with
+    Integers", Proceedings of the ACM SIGPLAN 2010 Conference on Programming
+    Language Design and Implementation, PLDI 2010
+[2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and Accurately",
+    Proceedings of the ACM SIGPLAN 1996 Conference on Programming Language
+    Design and Implementation, PLDI 1996
+*/
+namespace dtoa_impl
+{
+
+template<typename Target, typename Source>
+Target reinterpret_bits(const Source source)
+{
+    static_assert(sizeof(Target) == sizeof(Source), "size mismatch");
+
+    Target target;
+    std::memcpy(&target, &source, sizeof(Source));
+    return target;
+}
+
+struct diyfp // f * 2^e
+{
+    static constexpr int kPrecision = 64; // = q
+
+    std::uint64_t f = 0;
+    int e = 0;
+
+    constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {}
+
+    /*!
+    @brief returns x - y
+    @pre x.e == y.e and x.f >= y.f
+    */
+    static diyfp sub(const diyfp& x, const diyfp& y) noexcept
+    {
+        JSON_ASSERT(x.e == y.e);
+        JSON_ASSERT(x.f >= y.f);
+
+        return {x.f - y.f, x.e};
+    }
+
+    /*!
+    @brief returns x * y
+    @note The result is rounded. (Only the upper q bits are returned.)
+    */
+    static diyfp mul(const diyfp& x, const diyfp& y) noexcept
+    {
+        static_assert(kPrecision == 64, "internal error");
+
+        // Computes:
+        //  f = round((x.f * y.f) / 2^q)
+        //  e = x.e + y.e + q
+
+        // Emulate the 64-bit * 64-bit multiplication:
+        //
+        // p = u * v
+        //   = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi)
+        //   = (u_lo v_lo         ) + 2^32 ((u_lo v_hi         ) + (u_hi v_lo         )) + 2^64 (u_hi v_hi         )
+        //   = (p0                ) + 2^32 ((p1                ) + (p2                )) + 2^64 (p3                )
+        //   = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3                )
+        //   = (p0_lo             ) + 2^32 (p0_hi + p1_lo + p2_lo                      ) + 2^64 (p1_hi + p2_hi + p3)
+        //   = (p0_lo             ) + 2^32 (Q                                          ) + 2^64 (H                 )
+        //   = (p0_lo             ) + 2^32 (Q_lo + 2^32 Q_hi                           ) + 2^64 (H                 )
+        //
+        // (Since Q might be larger than 2^32 - 1)
+        //
+        //   = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H)
+        //
+        // (Q_hi + H does not overflow a 64-bit int)
+        //
+        //   = p_lo + 2^64 p_hi
+
+        const std::uint64_t u_lo = x.f & 0xFFFFFFFFu;
+        const std::uint64_t u_hi = x.f >> 32u;
+        const std::uint64_t v_lo = y.f & 0xFFFFFFFFu;
+        const std::uint64_t v_hi = y.f >> 32u;
+
+        const std::uint64_t p0 = u_lo * v_lo;
+        const std::uint64_t p1 = u_lo * v_hi;
+        const std::uint64_t p2 = u_hi * v_lo;
+        const std::uint64_t p3 = u_hi * v_hi;
+
+        const std::uint64_t p0_hi = p0 >> 32u;
+        const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu;
+        const std::uint64_t p1_hi = p1 >> 32u;
+        const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu;
+        const std::uint64_t p2_hi = p2 >> 32u;
+
+        std::uint64_t Q = p0_hi + p1_lo + p2_lo;
+
+        // The full product might now be computed as
+        //
+        // p_hi = p3 + p2_hi + p1_hi + (Q >> 32)
+        // p_lo = p0_lo + (Q << 32)
+        //
+        // But in this particular case here, the full p_lo is not required.
+        // Effectively we only need to add the highest bit in p_lo to p_hi (and
+        // Q_hi + 1 does not overflow).
+
+        Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up
+
+        const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u);
+
+        return {h, x.e + y.e + 64};
+    }
+
+    /*!
+    @brief normalize x such that the significand is >= 2^(q-1)
+    @pre x.f != 0
+    */
+    static diyfp normalize(diyfp x) noexcept
+    {
+        JSON_ASSERT(x.f != 0);
+
+        while ((x.f >> 63u) == 0)
+        {
+            x.f <<= 1u;
+            x.e--;
+        }
+
+        return x;
+    }
+
+    /*!
+    @brief normalize x such that the result has the exponent E
+    @pre e >= x.e and the upper e - x.e bits of x.f must be zero.
+    */
+    static diyfp normalize_to(const diyfp& x, const int target_exponent) noexcept
+    {
+        const int delta = x.e - target_exponent;
+
+        JSON_ASSERT(delta >= 0);
+        JSON_ASSERT(((x.f << delta) >> delta) == x.f);
+
+        return {x.f << delta, target_exponent};
+    }
+};
+
+struct boundaries
+{
+    diyfp w;
+    diyfp minus;
+    diyfp plus;
+};
+
+/*!
+Compute the (normalized) diyfp representing the input number 'value' and its
+boundaries.
+
+@pre value must be finite and positive
+*/
+template<typename FloatType>
+boundaries compute_boundaries(FloatType value)
+{
+    JSON_ASSERT(std::isfinite(value));
+    JSON_ASSERT(value > 0);
+
+    // Convert the IEEE representation into a diyfp.
+    //
+    // If v is denormal:
+    //      value = 0.F * 2^(1 - bias) = (          F) * 2^(1 - bias - (p-1))
+    // If v is normalized:
+    //      value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1))
+
+    static_assert(std::numeric_limits<FloatType>::is_iec559,
+                  "internal error: dtoa_short requires an IEEE-754 floating-point implementation");
+
+    constexpr int      kPrecision = std::numeric_limits<FloatType>::digits; // = p (includes the hidden bit)
+    constexpr int      kBias      = std::numeric_limits<FloatType>::max_exponent - 1 + (kPrecision - 1);
+    constexpr int      kMinExp    = 1 - kBias;
+    constexpr std::uint64_t kHiddenBit = std::uint64_t{1} << (kPrecision - 1); // = 2^(p-1)
+
+    using bits_type = typename std::conditional<kPrecision == 24, std::uint32_t, std::uint64_t >::type;
+
+    const auto bits = static_cast<std::uint64_t>(reinterpret_bits<bits_type>(value));
+    const std::uint64_t E = bits >> (kPrecision - 1);
+    const std::uint64_t F = bits & (kHiddenBit - 1);
+
+    const bool is_denormal = E == 0;
+    const diyfp v = is_denormal
+                    ? diyfp(F, kMinExp)
+                    : diyfp(F + kHiddenBit, static_cast<int>(E) - kBias);
+
+    // Compute the boundaries m- and m+ of the floating-point value
+    // v = f * 2^e.
+    //
+    // Determine v- and v+, the floating-point predecessor and successor if v,
+    // respectively.
+    //
+    //      v- = v - 2^e        if f != 2^(p-1) or e == e_min                (A)
+    //         = v - 2^(e-1)    if f == 2^(p-1) and e > e_min                (B)
+    //
+    //      v+ = v + 2^e
+    //
+    // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_
+    // between m- and m+ round to v, regardless of how the input rounding
+    // algorithm breaks ties.
+    //
+    //      ---+-------------+-------------+-------------+-------------+---  (A)
+    //         v-            m-            v             m+            v+
+    //
+    //      -----------------+------+------+-------------+-------------+---  (B)
+    //                       v-     m-     v             m+            v+
+
+    const bool lower_boundary_is_closer = F == 0 && E > 1;
+    const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1);
+    const diyfp m_minus = lower_boundary_is_closer
+                          ? diyfp(4 * v.f - 1, v.e - 2)  // (B)
+                          : diyfp(2 * v.f - 1, v.e - 1); // (A)
+
+    // Determine the normalized w+ = m+.
+    const diyfp w_plus = diyfp::normalize(m_plus);
+
+    // Determine w- = m- such that e_(w-) = e_(w+).
+    const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e);
+
+    return {diyfp::normalize(v), w_minus, w_plus};
+}
+
+// Given normalized diyfp w, Grisu needs to find a (normalized) cached
+// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies
+// within a certain range [alpha, gamma] (Definition 3.2 from [1])
+//
+//      alpha <= e = e_c + e_w + q <= gamma
+//
+// or
+//
+//      f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q
+//                          <= f_c * f_w * 2^gamma
+//
+// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies
+//
+//      2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma
+//
+// or
+//
+//      2^(q - 2 + alpha) <= c * w < 2^(q + gamma)
+//
+// The choice of (alpha,gamma) determines the size of the table and the form of
+// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well
+// in practice:
+//
+// The idea is to cut the number c * w = f * 2^e into two parts, which can be
+// processed independently: An integral part p1, and a fractional part p2:
+//
+//      f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e
+//              = (f div 2^-e) + (f mod 2^-e) * 2^e
+//              = p1 + p2 * 2^e
+//
+// The conversion of p1 into decimal form requires a series of divisions and
+// modulos by (a power of) 10. These operations are faster for 32-bit than for
+// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be
+// achieved by choosing
+//
+//      -e >= 32   or   e <= -32 := gamma
+//
+// In order to convert the fractional part
+//
+//      p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ...
+//
+// into decimal form, the fraction is repeatedly multiplied by 10 and the digits
+// d[-i] are extracted in order:
+//
+//      (10 * p2) div 2^-e = d[-1]
+//      (10 * p2) mod 2^-e = d[-2] / 10^1 + ...
+//
+// The multiplication by 10 must not overflow. It is sufficient to choose
+//
+//      10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64.
+//
+// Since p2 = f mod 2^-e < 2^-e,
+//
+//      -e <= 60   or   e >= -60 := alpha
+
+constexpr int kAlpha = -60;
+constexpr int kGamma = -32;
+
+struct cached_power // c = f * 2^e ~= 10^k
+{
+    std::uint64_t f;
+    int e;
+    int k;
+};
+
+/*!
+For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached
+power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c
+satisfies (Definition 3.2 from [1])
+
+     alpha <= e_c + e + q <= gamma.
+*/
+inline cached_power get_cached_power_for_binary_exponent(int e)
+{
+    // Now
+    //
+    //      alpha <= e_c + e + q <= gamma                                    (1)
+    //      ==> f_c * 2^alpha <= c * 2^e * 2^q
+    //
+    // and since the c's are normalized, 2^(q-1) <= f_c,
+    //
+    //      ==> 2^(q - 1 + alpha) <= c * 2^(e + q)
+    //      ==> 2^(alpha - e - 1) <= c
+    //
+    // If c were an exact power of ten, i.e. c = 10^k, one may determine k as
+    //
+    //      k = ceil( log_10( 2^(alpha - e - 1) ) )
+    //        = ceil( (alpha - e - 1) * log_10(2) )
+    //
+    // From the paper:
+    // "In theory the result of the procedure could be wrong since c is rounded,
+    //  and the computation itself is approximated [...]. In practice, however,
+    //  this simple function is sufficient."
+    //
+    // For IEEE double precision floating-point numbers converted into
+    // normalized diyfp's w = f * 2^e, with q = 64,
+    //
+    //      e >= -1022      (min IEEE exponent)
+    //           -52        (p - 1)
+    //           -52        (p - 1, possibly normalize denormal IEEE numbers)
+    //           -11        (normalize the diyfp)
+    //         = -1137
+    //
+    // and
+    //
+    //      e <= +1023      (max IEEE exponent)
+    //           -52        (p - 1)
+    //           -11        (normalize the diyfp)
+    //         = 960
+    //
+    // This binary exponent range [-1137,960] results in a decimal exponent
+    // range [-307,324]. One does not need to store a cached power for each
+    // k in this range. For each such k it suffices to find a cached power
+    // such that the exponent of the product lies in [alpha,gamma].
+    // This implies that the difference of the decimal exponents of adjacent
+    // table entries must be less than or equal to
+    //
+    //      floor( (gamma - alpha) * log_10(2) ) = 8.
+    //
+    // (A smaller distance gamma-alpha would require a larger table.)
+
+    // NB:
+    // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34.
+
+    constexpr int kCachedPowersMinDecExp = -300;
+    constexpr int kCachedPowersDecStep = 8;
+
+    static constexpr std::array<cached_power, 79> kCachedPowers =
+    {
+        {
+            { 0xAB70FE17C79AC6CA, -1060, -300 },
+            { 0xFF77B1FCBEBCDC4F, -1034, -292 },
+            { 0xBE5691EF416BD60C, -1007, -284 },
+            { 0x8DD01FAD907FFC3C,  -980, -276 },
+            { 0xD3515C2831559A83,  -954, -268 },
+            { 0x9D71AC8FADA6C9B5,  -927, -260 },
+            { 0xEA9C227723EE8BCB,  -901, -252 },
+            { 0xAECC49914078536D,  -874, -244 },
+            { 0x823C12795DB6CE57,  -847, -236 },
+            { 0xC21094364DFB5637,  -821, -228 },
+            { 0x9096EA6F3848984F,  -794, -220 },
+            { 0xD77485CB25823AC7,  -768, -212 },
+            { 0xA086CFCD97BF97F4,  -741, -204 },
+            { 0xEF340A98172AACE5,  -715, -196 },
+            { 0xB23867FB2A35B28E,  -688, -188 },
+            { 0x84C8D4DFD2C63F3B,  -661, -180 },
+            { 0xC5DD44271AD3CDBA,  -635, -172 },
+            { 0x936B9FCEBB25C996,  -608, -164 },
+            { 0xDBAC6C247D62A584,  -582, -156 },
+            { 0xA3AB66580D5FDAF6,  -555, -148 },
+            { 0xF3E2F893DEC3F126,  -529, -140 },
+            { 0xB5B5ADA8AAFF80B8,  -502, -132 },
+            { 0x87625F056C7C4A8B,  -475, -124 },
+            { 0xC9BCFF6034C13053,  -449, -116 },
+            { 0x964E858C91BA2655,  -422, -108 },
+            { 0xDFF9772470297EBD,  -396, -100 },
+            { 0xA6DFBD9FB8E5B88F,  -369,  -92 },
+            { 0xF8A95FCF88747D94,  -343,  -84 },
+            { 0xB94470938FA89BCF,  -316,  -76 },
+            { 0x8A08F0F8BF0F156B,  -289,  -68 },
+            { 0xCDB02555653131B6,  -263,  -60 },
+            { 0x993FE2C6D07B7FAC,  -236,  -52 },
+            { 0xE45C10C42A2B3B06,  -210,  -44 },
+            { 0xAA242499697392D3,  -183,  -36 },
+            { 0xFD87B5F28300CA0E,  -157,  -28 },
+            { 0xBCE5086492111AEB,  -130,  -20 },
+            { 0x8CBCCC096F5088CC,  -103,  -12 },
+            { 0xD1B71758E219652C,   -77,   -4 },
+            { 0x9C40000000000000,   -50,    4 },
+            { 0xE8D4A51000000000,   -24,   12 },
+            { 0xAD78EBC5AC620000,     3,   20 },
+            { 0x813F3978F8940984,    30,   28 },
+            { 0xC097CE7BC90715B3,    56,   36 },
+            { 0x8F7E32CE7BEA5C70,    83,   44 },
+            { 0xD5D238A4ABE98068,   109,   52 },
+            { 0x9F4F2726179A2245,   136,   60 },
+            { 0xED63A231D4C4FB27,   162,   68 },
+            { 0xB0DE65388CC8ADA8,   189,   76 },
+            { 0x83C7088E1AAB65DB,   216,   84 },
+            { 0xC45D1DF942711D9A,   242,   92 },
+            { 0x924D692CA61BE758,   269,  100 },
+            { 0xDA01EE641A708DEA,   295,  108 },
+            { 0xA26DA3999AEF774A,   322,  116 },
+            { 0xF209787BB47D6B85,   348,  124 },
+            { 0xB454E4A179DD1877,   375,  132 },
+            { 0x865B86925B9BC5C2,   402,  140 },
+            { 0xC83553C5C8965D3D,   428,  148 },
+            { 0x952AB45CFA97A0B3,   455,  156 },
+            { 0xDE469FBD99A05FE3,   481,  164 },
+            { 0xA59BC234DB398C25,   508,  172 },
+            { 0xF6C69A72A3989F5C,   534,  180 },
+            { 0xB7DCBF5354E9BECE,   561,  188 },
+            { 0x88FCF317F22241E2,   588,  196 },
+            { 0xCC20CE9BD35C78A5,   614,  204 },
+            { 0x98165AF37B2153DF,   641,  212 },
+            { 0xE2A0B5DC971F303A,   667,  220 },
+            { 0xA8D9D1535CE3B396,   694,  228 },
+            { 0xFB9B7CD9A4A7443C,   720,  236 },
+            { 0xBB764C4CA7A44410,   747,  244 },
+            { 0x8BAB8EEFB6409C1A,   774,  252 },
+            { 0xD01FEF10A657842C,   800,  260 },
+            { 0x9B10A4E5E9913129,   827,  268 },
+            { 0xE7109BFBA19C0C9D,   853,  276 },
+            { 0xAC2820D9623BF429,   880,  284 },
+            { 0x80444B5E7AA7CF85,   907,  292 },
+            { 0xBF21E44003ACDD2D,   933,  300 },
+            { 0x8E679C2F5E44FF8F,   960,  308 },
+            { 0xD433179D9C8CB841,   986,  316 },
+            { 0x9E19DB92B4E31BA9,  1013,  324 },
+        }
+    };
+
+    // This computation gives exactly the same results for k as
+    //      k = ceil((kAlpha - e - 1) * 0.30102999566398114)
+    // for |e| <= 1500, but doesn't require floating-point operations.
+    // NB: log_10(2) ~= 78913 / 2^18
+    JSON_ASSERT(e >= -1500);
+    JSON_ASSERT(e <=  1500);
+    const int f = kAlpha - e - 1;
+    const int k = (f * 78913) / (1 << 18) + static_cast<int>(f > 0);
+
+    const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep;
+    JSON_ASSERT(index >= 0);
+    JSON_ASSERT(static_cast<std::size_t>(index) < kCachedPowers.size());
+
+    const cached_power cached = kCachedPowers[static_cast<std::size_t>(index)];
+    JSON_ASSERT(kAlpha <= cached.e + e + 64);
+    JSON_ASSERT(kGamma >= cached.e + e + 64);
+
+    return cached;
+}
+
+/*!
+For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k.
+For n == 0, returns 1 and sets pow10 := 1.
+*/
+inline int find_largest_pow10(const std::uint32_t n, std::uint32_t& pow10)
+{
+    // LCOV_EXCL_START
+    if (n >= 1000000000)
+    {
+        pow10 = 1000000000;
+        return 10;
+    }
+    // LCOV_EXCL_STOP
+    if (n >= 100000000)
+    {
+        pow10 = 100000000;
+        return  9;
+    }
+    if (n >= 10000000)
+    {
+        pow10 = 10000000;
+        return  8;
+    }
+    if (n >= 1000000)
+    {
+        pow10 = 1000000;
+        return  7;
+    }
+    if (n >= 100000)
+    {
+        pow10 = 100000;
+        return  6;
+    }
+    if (n >= 10000)
+    {
+        pow10 = 10000;
+        return  5;
+    }
+    if (n >= 1000)
+    {
+        pow10 = 1000;
+        return  4;
+    }
+    if (n >= 100)
+    {
+        pow10 = 100;
+        return  3;
+    }
+    if (n >= 10)
+    {
+        pow10 = 10;
+        return  2;
+    }
+
+    pow10 = 1;
+    return 1;
+}
+
+inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t delta,
+                         std::uint64_t rest, std::uint64_t ten_k)
+{
+    JSON_ASSERT(len >= 1);
+    JSON_ASSERT(dist <= delta);
+    JSON_ASSERT(rest <= delta);
+    JSON_ASSERT(ten_k > 0);
+
+    //               <--------------------------- delta ---->
+    //                                  <---- dist --------->
+    // --------------[------------------+-------------------]--------------
+    //               M-                 w                   M+
+    //
+    //                                  ten_k
+    //                                <------>
+    //                                       <---- rest ---->
+    // --------------[------------------+----+--------------]--------------
+    //                                  w    V
+    //                                       = buf * 10^k
+    //
+    // ten_k represents a unit-in-the-last-place in the decimal representation
+    // stored in buf.
+    // Decrement buf by ten_k while this takes buf closer to w.
+
+    // The tests are written in this order to avoid overflow in unsigned
+    // integer arithmetic.
+
+    while (rest < dist
+            && delta - rest >= ten_k
+            && (rest + ten_k < dist || dist - rest > rest + ten_k - dist))
+    {
+        JSON_ASSERT(buf[len - 1] != '0');
+        buf[len - 1]--;
+        rest += ten_k;
+    }
+}
+
+/*!
+Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+.
+M- and M+ must be normalized and share the same exponent -60 <= e <= -32.
+*/
+inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
+                             diyfp M_minus, diyfp w, diyfp M_plus)
+{
+    static_assert(kAlpha >= -60, "internal error");
+    static_assert(kGamma <= -32, "internal error");
+
+    // Generates the digits (and the exponent) of a decimal floating-point
+    // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's
+    // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= gamma.
+    //
+    //               <--------------------------- delta ---->
+    //                                  <---- dist --------->
+    // --------------[------------------+-------------------]--------------
+    //               M-                 w                   M+
+    //
+    // Grisu2 generates the digits of M+ from left to right and stops as soon as
+    // V is in [M-,M+].
+
+    JSON_ASSERT(M_plus.e >= kAlpha);
+    JSON_ASSERT(M_plus.e <= kGamma);
+
+    std::uint64_t delta = diyfp::sub(M_plus, M_minus).f; // (significand of (M+ - M-), implicit exponent is e)
+    std::uint64_t dist  = diyfp::sub(M_plus, w      ).f; // (significand of (M+ - w ), implicit exponent is e)
+
+    // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0):
+    //
+    //      M+ = f * 2^e
+    //         = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e
+    //         = ((p1        ) * 2^-e + (p2        )) * 2^e
+    //         = p1 + p2 * 2^e
+
+    const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e);
+
+    auto p1 = static_cast<std::uint32_t>(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.)
+    std::uint64_t p2 = M_plus.f & (one.f - 1);                    // p2 = f mod 2^-e
+
+    // 1)
+    //
+    // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0]
+
+    JSON_ASSERT(p1 > 0);
+
+    std::uint32_t pow10{};
+    const int k = find_largest_pow10(p1, pow10);
+
+    //      10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1)
+    //
+    //      p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1))
+    //         = (d[k-1]         ) * 10^(k-1) + (p1 mod 10^(k-1))
+    //
+    //      M+ = p1                                             + p2 * 2^e
+    //         = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1))          + p2 * 2^e
+    //         = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e
+    //         = d[k-1] * 10^(k-1) + (                         rest) * 2^e
+    //
+    // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0)
+    //
+    //      p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0]
+    //
+    // but stop as soon as
+    //
+    //      rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e
+
+    int n = k;
+    while (n > 0)
+    {
+        // Invariants:
+        //      M+ = buffer * 10^n + (p1 + p2 * 2^e)    (buffer = 0 for n = k)
+        //      pow10 = 10^(n-1) <= p1 < 10^n
+        //
+        const std::uint32_t d = p1 / pow10;  // d = p1 div 10^(n-1)
+        const std::uint32_t r = p1 % pow10;  // r = p1 mod 10^(n-1)
+        //
+        //      M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e
+        //         = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e)
+        //
+        JSON_ASSERT(d <= 9);
+        buffer[length++] = static_cast<char>('0' + d); // buffer := buffer * 10 + d
+        //
+        //      M+ = buffer * 10^(n-1) + (r + p2 * 2^e)
+        //
+        p1 = r;
+        n--;
+        //
+        //      M+ = buffer * 10^n + (p1 + p2 * 2^e)
+        //      pow10 = 10^n
+        //
+
+        // Now check if enough digits have been generated.
+        // Compute
+        //
+        //      p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e
+        //
+        // Note:
+        // Since rest and delta share the same exponent e, it suffices to
+        // compare the significands.
+        const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2;
+        if (rest <= delta)
+        {
+            // V = buffer * 10^n, with M- <= V <= M+.
+
+            decimal_exponent += n;
+
+            // We may now just stop. But instead look if the buffer could be
+            // decremented to bring V closer to w.
+            //
+            // pow10 = 10^n is now 1 ulp in the decimal representation V.
+            // The rounding procedure works with diyfp's with an implicit
+            // exponent of e.
+            //
+            //      10^n = (10^n * 2^-e) * 2^e = ulp * 2^e
+            //
+            const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e;
+            grisu2_round(buffer, length, dist, delta, rest, ten_n);
+
+            return;
+        }
+
+        pow10 /= 10;
+        //
+        //      pow10 = 10^(n-1) <= p1 < 10^n
+        // Invariants restored.
+    }
+
+    // 2)
+    //
+    // The digits of the integral part have been generated:
+    //
+    //      M+ = d[k-1]...d[1]d[0] + p2 * 2^e
+    //         = buffer            + p2 * 2^e
+    //
+    // Now generate the digits of the fractional part p2 * 2^e.
+    //
+    // Note:
+    // No decimal point is generated: the exponent is adjusted instead.
+    //
+    // p2 actually represents the fraction
+    //
+    //      p2 * 2^e
+    //          = p2 / 2^-e
+    //          = d[-1] / 10^1 + d[-2] / 10^2 + ...
+    //
+    // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...)
+    //
+    //      p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m
+    //                      + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...)
+    //
+    // using
+    //
+    //      10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e)
+    //                = (                   d) * 2^-e + (                   r)
+    //
+    // or
+    //      10^m * p2 * 2^e = d + r * 2^e
+    //
+    // i.e.
+    //
+    //      M+ = buffer + p2 * 2^e
+    //         = buffer + 10^-m * (d + r * 2^e)
+    //         = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e
+    //
+    // and stop as soon as 10^-m * r * 2^e <= delta * 2^e
+
+    JSON_ASSERT(p2 > delta);
+
+    int m = 0;
+    for (;;)
+    {
+        // Invariant:
+        //      M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) * 2^e
+        //         = buffer * 10^-m + 10^-m * (p2                                 ) * 2^e
+        //         = buffer * 10^-m + 10^-m * (1/10 * (10 * p2)                   ) * 2^e
+        //         = buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + (10*p2 mod 2^-e)) * 2^e
+        //
+        JSON_ASSERT(p2 <= (std::numeric_limits<std::uint64_t>::max)() / 10);
+        p2 *= 10;
+        const std::uint64_t d = p2 >> -one.e;     // d = (10 * p2) div 2^-e
+        const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e
+        //
+        //      M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e
+        //         = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e))
+        //         = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e
+        //
+        JSON_ASSERT(d <= 9);
+        buffer[length++] = static_cast<char>('0' + d); // buffer := buffer * 10 + d
+        //
+        //      M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e
+        //
+        p2 = r;
+        m++;
+        //
+        //      M+ = buffer * 10^-m + 10^-m * p2 * 2^e
+        // Invariant restored.
+
+        // Check if enough digits have been generated.
+        //
+        //      10^-m * p2 * 2^e <= delta * 2^e
+        //              p2 * 2^e <= 10^m * delta * 2^e
+        //                    p2 <= 10^m * delta
+        delta *= 10;
+        dist  *= 10;
+        if (p2 <= delta)
+        {
+            break;
+        }
+    }
+
+    // V = buffer * 10^-m, with M- <= V <= M+.
+
+    decimal_exponent -= m;
+
+    // 1 ulp in the decimal representation is now 10^-m.
+    // Since delta and dist are now scaled by 10^m, we need to do the
+    // same with ulp in order to keep the units in sync.
+    //
+    //      10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e
+    //
+    const std::uint64_t ten_m = one.f;
+    grisu2_round(buffer, length, dist, delta, p2, ten_m);
+
+    // By construction this algorithm generates the shortest possible decimal
+    // number (Loitsch, Theorem 6.2) which rounds back to w.
+    // For an input number of precision p, at least
+    //
+    //      N = 1 + ceil(p * log_10(2))
+    //
+    // decimal digits are sufficient to identify all binary floating-point
+    // numbers (Matula, "In-and-Out conversions").
+    // This implies that the algorithm does not produce more than N decimal
+    // digits.
+    //
+    //      N = 17 for p = 53 (IEEE double precision)
+    //      N = 9  for p = 24 (IEEE single precision)
+}
+
+/*!
+v = buf * 10^decimal_exponent
+len is the length of the buffer (number of decimal digits)
+The buffer must be large enough, i.e. >= max_digits10.
+*/
+JSON_HEDLEY_NON_NULL(1)
+inline void grisu2(char* buf, int& len, int& decimal_exponent,
+                   diyfp m_minus, diyfp v, diyfp m_plus)
+{
+    JSON_ASSERT(m_plus.e == m_minus.e);
+    JSON_ASSERT(m_plus.e == v.e);
+
+    //  --------(-----------------------+-----------------------)--------    (A)
+    //          m-                      v                       m+
+    //
+    //  --------------------(-----------+-----------------------)--------    (B)
+    //                      m-          v                       m+
+    //
+    // First scale v (and m- and m+) such that the exponent is in the range
+    // [alpha, gamma].
+
+    const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e);
+
+    const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k
+
+    // The exponent of the products is = v.e + c_minus_k.e + q and is in the range [alpha,gamma]
+    const diyfp w       = diyfp::mul(v,       c_minus_k);
+    const diyfp w_minus = diyfp::mul(m_minus, c_minus_k);
+    const diyfp w_plus  = diyfp::mul(m_plus,  c_minus_k);
+
+    //  ----(---+---)---------------(---+---)---------------(---+---)----
+    //          w-                      w                       w+
+    //          = c*m-                  = c*v                   = c*m+
+    //
+    // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and
+    // w+ are now off by a small amount.
+    // In fact:
+    //
+    //      w - v * 10^k < 1 ulp
+    //
+    // To account for this inaccuracy, add resp. subtract 1 ulp.
+    //
+    //  --------+---[---------------(---+---)---------------]---+--------
+    //          w-  M-                  w                   M+  w+
+    //
+    // Now any number in [M-, M+] (bounds included) will round to w when input,
+    // regardless of how the input rounding algorithm breaks ties.
+    //
+    // And digit_gen generates the shortest possible such number in [M-, M+].
+    // Note that this does not mean that Grisu2 always generates the shortest
+    // possible number in the interval (m-, m+).
+    const diyfp M_minus(w_minus.f + 1, w_minus.e);
+    const diyfp M_plus (w_plus.f  - 1, w_plus.e );
+
+    decimal_exponent = -cached.k; // = -(-k) = k
+
+    grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus);
+}
+
+/*!
+v = buf * 10^decimal_exponent
+len is the length of the buffer (number of decimal digits)
+The buffer must be large enough, i.e. >= max_digits10.
+*/
+template<typename FloatType>
+JSON_HEDLEY_NON_NULL(1)
+void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value)
+{
+    static_assert(diyfp::kPrecision >= std::numeric_limits<FloatType>::digits + 3,
+                  "internal error: not enough precision");
+
+    JSON_ASSERT(std::isfinite(value));
+    JSON_ASSERT(value > 0);
+
+    // If the neighbors (and boundaries) of 'value' are always computed for double-precision
+    // numbers, all float's can be recovered using strtod (and strtof). However, the resulting
+    // decimal representations are not exactly "short".
+    //
+    // The documentation for 'std::to_chars' (https://en.cppreference.com/w/cpp/utility/to_chars)
+    // says "value is converted to a string as if by std::sprintf in the default ("C") locale"
+    // and since sprintf promotes float's to double's, I think this is exactly what 'std::to_chars'
+    // does.
+    // On the other hand, the documentation for 'std::to_chars' requires that "parsing the
+    // representation using the corresponding std::from_chars function recovers value exactly". That
+    // indicates that single precision floating-point numbers should be recovered using
+    // 'std::strtof'.
+    //
+    // NB: If the neighbors are computed for single-precision numbers, there is a single float
+    //     (7.0385307e-26f) which can't be recovered using strtod. The resulting double precision
+    //     value is off by 1 ulp.
+#if 0
+    const boundaries w = compute_boundaries(static_cast<double>(value));
+#else
+    const boundaries w = compute_boundaries(value);
+#endif
+
+    grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus);
+}
+
+/*!
+@brief appends a decimal representation of e to buf
+@return a pointer to the element following the exponent.
+@pre -1000 < e < 1000
+*/
+JSON_HEDLEY_NON_NULL(1)
+JSON_HEDLEY_RETURNS_NON_NULL
+inline char* append_exponent(char* buf, int e)
+{
+    JSON_ASSERT(e > -1000);
+    JSON_ASSERT(e <  1000);
+
+    if (e < 0)
+    {
+        e = -e;
+        *buf++ = '-';
+    }
+    else
+    {
+        *buf++ = '+';
+    }
+
+    auto k = static_cast<std::uint32_t>(e);
+    if (k < 10)
+    {
+        // Always print at least two digits in the exponent.
+        // This is for compatibility with printf("%g").
+        *buf++ = '0';
+        *buf++ = static_cast<char>('0' + k);
+    }
+    else if (k < 100)
+    {
+        *buf++ = static_cast<char>('0' + k / 10);
+        k %= 10;
+        *buf++ = static_cast<char>('0' + k);
+    }
+    else
+    {
+        *buf++ = static_cast<char>('0' + k / 100);
+        k %= 100;
+        *buf++ = static_cast<char>('0' + k / 10);
+        k %= 10;
+        *buf++ = static_cast<char>('0' + k);
+    }
+
+    return buf;
+}
+
+/*!
+@brief prettify v = buf * 10^decimal_exponent
+
+If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point
+notation. Otherwise it will be printed in exponential notation.
+
+@pre min_exp < 0
+@pre max_exp > 0
+*/
+JSON_HEDLEY_NON_NULL(1)
+JSON_HEDLEY_RETURNS_NON_NULL
+inline char* format_buffer(char* buf, int len, int decimal_exponent,
+                           int min_exp, int max_exp)
+{
+    JSON_ASSERT(min_exp < 0);
+    JSON_ASSERT(max_exp > 0);
+
+    const int k = len;
+    const int n = len + decimal_exponent;
+
+    // v = buf * 10^(n-k)
+    // k is the length of the buffer (number of decimal digits)
+    // n is the position of the decimal point relative to the start of the buffer.
+
+    if (k <= n && n <= max_exp)
+    {
+        // digits[000]
+        // len <= max_exp + 2
+
+        std::memset(buf + k, '0', static_cast<size_t>(n) - static_cast<size_t>(k));
+        // Make it look like a floating-point number (#362, #378)
+        buf[n + 0] = '.';
+        buf[n + 1] = '0';
+        return buf + (static_cast<size_t>(n) + 2);
+    }
+
+    if (0 < n && n <= max_exp)
+    {
+        // dig.its
+        // len <= max_digits10 + 1
+
+        JSON_ASSERT(k > n);
+
+        std::memmove(buf + (static_cast<size_t>(n) + 1), buf + n, static_cast<size_t>(k) - static_cast<size_t>(n));
+        buf[n] = '.';
+        return buf + (static_cast<size_t>(k) + 1U);
+    }
+
+    if (min_exp < n && n <= 0)
+    {
+        // 0.[000]digits
+        // len <= 2 + (-min_exp - 1) + max_digits10
+
+        std::memmove(buf + (2 + static_cast<size_t>(-n)), buf, static_cast<size_t>(k));
+        buf[0] = '0';
+        buf[1] = '.';
+        std::memset(buf + 2, '0', static_cast<size_t>(-n));
+        return buf + (2U + static_cast<size_t>(-n) + static_cast<size_t>(k));
+    }
+
+    if (k == 1)
+    {
+        // dE+123
+        // len <= 1 + 5
+
+        buf += 1;
+    }
+    else
+    {
+        // d.igitsE+123
+        // len <= max_digits10 + 1 + 5
+
+        std::memmove(buf + 2, buf + 1, static_cast<size_t>(k) - 1);
+        buf[1] = '.';
+        buf += 1 + static_cast<size_t>(k);
+    }
+
+    *buf++ = 'e';
+    return append_exponent(buf, n - 1);
+}
+
+} // namespace dtoa_impl
+
+/*!
+@brief generates a decimal representation of the floating-point number value in [first, last).
+
+The format of the resulting decimal representation is similar to printf's %g
+format. Returns an iterator pointing past-the-end of the decimal representation.
+
+@note The input number must be finite, i.e. NaN's and Inf's are not supported.
+@note The buffer must be large enough.
+@note The result is NOT null-terminated.
+*/
+template<typename FloatType>
+JSON_HEDLEY_NON_NULL(1, 2)
+JSON_HEDLEY_RETURNS_NON_NULL
+char* to_chars(char* first, const char* last, FloatType value)
+{
+    static_cast<void>(last); // maybe unused - fix warning
+    JSON_ASSERT(std::isfinite(value));
+
+    // Use signbit(value) instead of (value < 0) since signbit works for -0.
+    if (std::signbit(value))
+    {
+        value = -value;
+        *first++ = '-';
+    }
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
+    if (value == 0) // +-0
+    {
+        *first++ = '0';
+        // Make it look like a floating-point number (#362, #378)
+        *first++ = '.';
+        *first++ = '0';
+        return first;
+    }
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+    JSON_ASSERT(last - first >= std::numeric_limits<FloatType>::max_digits10);
+
+    // Compute v = buffer * 10^decimal_exponent.
+    // The decimal digits are stored in the buffer, which needs to be interpreted
+    // as an unsigned decimal integer.
+    // len is the length of the buffer, i.e. the number of decimal digits.
+    int len = 0;
+    int decimal_exponent = 0;
+    dtoa_impl::grisu2(first, len, decimal_exponent, value);
+
+    JSON_ASSERT(len <= std::numeric_limits<FloatType>::max_digits10);
+
+    // Format the buffer like printf("%.*g", prec, value)
+    constexpr int kMinExp = -4;
+    // Use digits10 here to increase compatibility with version 2.
+    constexpr int kMaxExp = std::numeric_limits<FloatType>::digits10;
+
+    JSON_ASSERT(last - first >= kMaxExp + 2);
+    JSON_ASSERT(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits<FloatType>::max_digits10);
+    JSON_ASSERT(last - first >= std::numeric_limits<FloatType>::max_digits10 + 6);
+
+    return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, kMaxExp);
+}
+
+} // namespace detail
+} // namespace nlohmann
+
+// #include <nlohmann/detail/exceptions.hpp>
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+// #include <nlohmann/detail/meta/cpp_future.hpp>
+
+// #include <nlohmann/detail/output/binary_writer.hpp>
+
+// #include <nlohmann/detail/output/output_adapters.hpp>
+
+// #include <nlohmann/detail/value_t.hpp>
+
+
+namespace nlohmann
+{
+namespace detail
+{
+///////////////////
+// serialization //
+///////////////////
+
+/// how to treat decoding errors
+enum class error_handler_t
+{
+    strict,  ///< throw a type_error exception in case of invalid UTF-8
+    replace, ///< replace invalid UTF-8 sequences with U+FFFD
+    ignore   ///< ignore invalid UTF-8 sequences
+};
+
+template<typename BasicJsonType>
+class serializer
+{
+    using string_t = typename BasicJsonType::string_t;
+    using number_float_t = typename BasicJsonType::number_float_t;
+    using number_integer_t = typename BasicJsonType::number_integer_t;
+    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+    using binary_char_t = typename BasicJsonType::binary_t::value_type;
+    static constexpr std::uint8_t UTF8_ACCEPT = 0;
+    static constexpr std::uint8_t UTF8_REJECT = 1;
+
+  public:
+    /*!
+    @param[in] s  output stream to serialize to
+    @param[in] ichar  indentation character to use
+    @param[in] error_handler_  how to react on decoding errors
+    */
+    serializer(output_adapter_t<char> s, const char ichar,
+               error_handler_t error_handler_ = error_handler_t::strict)
+        : o(std::move(s))
+        , loc(std::localeconv())
+        , thousands_sep(loc->thousands_sep == nullptr ? '\0' : std::char_traits<char>::to_char_type(* (loc->thousands_sep)))
+        , decimal_point(loc->decimal_point == nullptr ? '\0' : std::char_traits<char>::to_char_type(* (loc->decimal_point)))
+        , indent_char(ichar)
+        , indent_string(512, indent_char)
+        , error_handler(error_handler_)
+    {}
+
+    // delete because of pointer members
+    serializer(const serializer&) = delete;
+    serializer& operator=(const serializer&) = delete;
+    serializer(serializer&&) = delete;
+    serializer& operator=(serializer&&) = delete;
+    ~serializer() = default;
+
+    /*!
+    @brief internal implementation of the serialization function
+
+    This function is called by the public member function dump and organizes
+    the serialization internally. The indentation level is propagated as
+    additional parameter. In case of arrays and objects, the function is
+    called recursively.
+
+    - strings and object keys are escaped using `escape_string()`
+    - integer numbers are converted implicitly via `operator<<`
+    - floating-point numbers are converted to a string using `"%g"` format
+    - binary values are serialized as objects containing the subtype and the
+      byte array
+
+    @param[in] val               value to serialize
+    @param[in] pretty_print      whether the output shall be pretty-printed
+    @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters
+    in the output are escaped with `\uXXXX` sequences, and the result consists
+    of ASCII characters only.
+    @param[in] indent_step       the indent level
+    @param[in] current_indent    the current indent level (only used internally)
+    */
+    void dump(const BasicJsonType& val,
+              const bool pretty_print,
+              const bool ensure_ascii,
+              const unsigned int indent_step,
+              const unsigned int current_indent = 0)
+    {
+        switch (val.m_type)
+        {
+            case value_t::object:
+            {
+                if (val.m_value.object->empty())
+                {
+                    o->write_characters("{}", 2);
+                    return;
+                }
+
+                if (pretty_print)
+                {
+                    o->write_characters("{\n", 2);
+
+                    // variable to hold indentation for recursive calls
+                    const auto new_indent = current_indent + indent_step;
+                    if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent))
+                    {
+                        indent_string.resize(indent_string.size() * 2, ' ');
+                    }
+
+                    // first n-1 elements
+                    auto i = val.m_value.object->cbegin();
+                    for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i)
+                    {
+                        o->write_characters(indent_string.c_str(), new_indent);
+                        o->write_character('\"');
+                        dump_escaped(i->first, ensure_ascii);
+                        o->write_characters("\": ", 3);
+                        dump(i->second, true, ensure_ascii, indent_step, new_indent);
+                        o->write_characters(",\n", 2);
+                    }
+
+                    // last element
+                    JSON_ASSERT(i != val.m_value.object->cend());
+                    JSON_ASSERT(std::next(i) == val.m_value.object->cend());
+                    o->write_characters(indent_string.c_str(), new_indent);
+                    o->write_character('\"');
+                    dump_escaped(i->first, ensure_ascii);
+                    o->write_characters("\": ", 3);
+                    dump(i->second, true, ensure_ascii, indent_step, new_indent);
+
+                    o->write_character('\n');
+                    o->write_characters(indent_string.c_str(), current_indent);
+                    o->write_character('}');
+                }
+                else
+                {
+                    o->write_character('{');
+
+                    // first n-1 elements
+                    auto i = val.m_value.object->cbegin();
+                    for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i)
+                    {
+                        o->write_character('\"');
+                        dump_escaped(i->first, ensure_ascii);
+                        o->write_characters("\":", 2);
+                        dump(i->second, false, ensure_ascii, indent_step, current_indent);
+                        o->write_character(',');
+                    }
+
+                    // last element
+                    JSON_ASSERT(i != val.m_value.object->cend());
+                    JSON_ASSERT(std::next(i) == val.m_value.object->cend());
+                    o->write_character('\"');
+                    dump_escaped(i->first, ensure_ascii);
+                    o->write_characters("\":", 2);
+                    dump(i->second, false, ensure_ascii, indent_step, current_indent);
+
+                    o->write_character('}');
+                }
+
+                return;
+            }
+
+            case value_t::array:
+            {
+                if (val.m_value.array->empty())
+                {
+                    o->write_characters("[]", 2);
+                    return;
+                }
+
+                if (pretty_print)
+                {
+                    o->write_characters("[\n", 2);
+
+                    // variable to hold indentation for recursive calls
+                    const auto new_indent = current_indent + indent_step;
+                    if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent))
+                    {
+                        indent_string.resize(indent_string.size() * 2, ' ');
+                    }
+
+                    // first n-1 elements
+                    for (auto i = val.m_value.array->cbegin();
+                            i != val.m_value.array->cend() - 1; ++i)
+                    {
+                        o->write_characters(indent_string.c_str(), new_indent);
+                        dump(*i, true, ensure_ascii, indent_step, new_indent);
+                        o->write_characters(",\n", 2);
+                    }
+
+                    // last element
+                    JSON_ASSERT(!val.m_value.array->empty());
+                    o->write_characters(indent_string.c_str(), new_indent);
+                    dump(val.m_value.array->back(), true, ensure_ascii, indent_step, new_indent);
+
+                    o->write_character('\n');
+                    o->write_characters(indent_string.c_str(), current_indent);
+                    o->write_character(']');
+                }
+                else
+                {
+                    o->write_character('[');
+
+                    // first n-1 elements
+                    for (auto i = val.m_value.array->cbegin();
+                            i != val.m_value.array->cend() - 1; ++i)
+                    {
+                        dump(*i, false, ensure_ascii, indent_step, current_indent);
+                        o->write_character(',');
+                    }
+
+                    // last element
+                    JSON_ASSERT(!val.m_value.array->empty());
+                    dump(val.m_value.array->back(), false, ensure_ascii, indent_step, current_indent);
+
+                    o->write_character(']');
+                }
+
+                return;
+            }
+
+            case value_t::string:
+            {
+                o->write_character('\"');
+                dump_escaped(*val.m_value.string, ensure_ascii);
+                o->write_character('\"');
+                return;
+            }
+
+            case value_t::binary:
+            {
+                if (pretty_print)
+                {
+                    o->write_characters("{\n", 2);
+
+                    // variable to hold indentation for recursive calls
+                    const auto new_indent = current_indent + indent_step;
+                    if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent))
+                    {
+                        indent_string.resize(indent_string.size() * 2, ' ');
+                    }
+
+                    o->write_characters(indent_string.c_str(), new_indent);
+
+                    o->write_characters("\"bytes\": [", 10);
+
+                    if (!val.m_value.binary->empty())
+                    {
+                        for (auto i = val.m_value.binary->cbegin();
+                                i != val.m_value.binary->cend() - 1; ++i)
+                        {
+                            dump_integer(*i);
+                            o->write_characters(", ", 2);
+                        }
+                        dump_integer(val.m_value.binary->back());
+                    }
+
+                    o->write_characters("],\n", 3);
+                    o->write_characters(indent_string.c_str(), new_indent);
+
+                    o->write_characters("\"subtype\": ", 11);
+                    if (val.m_value.binary->has_subtype())
+                    {
+                        dump_integer(val.m_value.binary->subtype());
+                    }
+                    else
+                    {
+                        o->write_characters("null", 4);
+                    }
+                    o->write_character('\n');
+                    o->write_characters(indent_string.c_str(), current_indent);
+                    o->write_character('}');
+                }
+                else
+                {
+                    o->write_characters("{\"bytes\":[", 10);
+
+                    if (!val.m_value.binary->empty())
+                    {
+                        for (auto i = val.m_value.binary->cbegin();
+                                i != val.m_value.binary->cend() - 1; ++i)
+                        {
+                            dump_integer(*i);
+                            o->write_character(',');
+                        }
+                        dump_integer(val.m_value.binary->back());
+                    }
+
+                    o->write_characters("],\"subtype\":", 12);
+                    if (val.m_value.binary->has_subtype())
+                    {
+                        dump_integer(val.m_value.binary->subtype());
+                        o->write_character('}');
+                    }
+                    else
+                    {
+                        o->write_characters("null}", 5);
+                    }
+                }
+                return;
+            }
+
+            case value_t::boolean:
+            {
+                if (val.m_value.boolean)
+                {
+                    o->write_characters("true", 4);
+                }
+                else
+                {
+                    o->write_characters("false", 5);
+                }
+                return;
+            }
+
+            case value_t::number_integer:
+            {
+                dump_integer(val.m_value.number_integer);
+                return;
+            }
+
+            case value_t::number_unsigned:
+            {
+                dump_integer(val.m_value.number_unsigned);
+                return;
+            }
+
+            case value_t::number_float:
+            {
+                dump_float(val.m_value.number_float);
+                return;
+            }
+
+            case value_t::discarded:
+            {
+                o->write_characters("<discarded>", 11);
+                return;
+            }
+
+            case value_t::null:
+            {
+                o->write_characters("null", 4);
+                return;
+            }
+
+            default:            // LCOV_EXCL_LINE
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+        }
+    }
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    /*!
+    @brief dump escaped string
+
+    Escape a string by replacing certain special characters by a sequence of an
+    escape character (backslash) and another character and other control
+    characters by a sequence of "\u" followed by a four-digit hex
+    representation. The escaped string is written to output stream @a o.
+
+    @param[in] s  the string to escape
+    @param[in] ensure_ascii  whether to escape non-ASCII characters with
+                             \uXXXX sequences
+
+    @complexity Linear in the length of string @a s.
+    */
+    void dump_escaped(const string_t& s, const bool ensure_ascii)
+    {
+        std::uint32_t codepoint{};
+        std::uint8_t state = UTF8_ACCEPT;
+        std::size_t bytes = 0;  // number of bytes written to string_buffer
+
+        // number of bytes written at the point of the last valid byte
+        std::size_t bytes_after_last_accept = 0;
+        std::size_t undumped_chars = 0;
+
+        for (std::size_t i = 0; i < s.size(); ++i)
+        {
+            const auto byte = static_cast<std::uint8_t>(s[i]);
+
+            switch (decode(state, codepoint, byte))
+            {
+                case UTF8_ACCEPT:  // decode found a new code point
+                {
+                    switch (codepoint)
+                    {
+                        case 0x08: // backspace
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = 'b';
+                            break;
+                        }
+
+                        case 0x09: // horizontal tab
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = 't';
+                            break;
+                        }
+
+                        case 0x0A: // newline
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = 'n';
+                            break;
+                        }
+
+                        case 0x0C: // formfeed
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = 'f';
+                            break;
+                        }
+
+                        case 0x0D: // carriage return
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = 'r';
+                            break;
+                        }
+
+                        case 0x22: // quotation mark
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = '\"';
+                            break;
+                        }
+
+                        case 0x5C: // reverse solidus
+                        {
+                            string_buffer[bytes++] = '\\';
+                            string_buffer[bytes++] = '\\';
+                            break;
+                        }
+
+                        default:
+                        {
+                            // escape control characters (0x00..0x1F) or, if
+                            // ensure_ascii parameter is used, non-ASCII characters
+                            if ((codepoint <= 0x1F) || (ensure_ascii && (codepoint >= 0x7F)))
+                            {
+                                if (codepoint <= 0xFFFF)
+                                {
+                                    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+                                    (std::snprintf)(string_buffer.data() + bytes, 7, "\\u%04x",
+                                                    static_cast<std::uint16_t>(codepoint));
+                                    bytes += 6;
+                                }
+                                else
+                                {
+                                    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+                                    (std::snprintf)(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x",
+                                                    static_cast<std::uint16_t>(0xD7C0u + (codepoint >> 10u)),
+                                                    static_cast<std::uint16_t>(0xDC00u + (codepoint & 0x3FFu)));
+                                    bytes += 12;
+                                }
+                            }
+                            else
+                            {
+                                // copy byte to buffer (all previous bytes
+                                // been copied have in default case above)
+                                string_buffer[bytes++] = s[i];
+                            }
+                            break;
+                        }
+                    }
+
+                    // write buffer and reset index; there must be 13 bytes
+                    // left, as this is the maximal number of bytes to be
+                    // written ("\uxxxx\uxxxx\0") for one code point
+                    if (string_buffer.size() - bytes < 13)
+                    {
+                        o->write_characters(string_buffer.data(), bytes);
+                        bytes = 0;
+                    }
+
+                    // remember the byte position of this accept
+                    bytes_after_last_accept = bytes;
+                    undumped_chars = 0;
+                    break;
+                }
+
+                case UTF8_REJECT:  // decode found invalid UTF-8 byte
+                {
+                    switch (error_handler)
+                    {
+                        case error_handler_t::strict:
+                        {
+                            std::string sn(9, '\0');
+                            // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+                            (std::snprintf)(&sn[0], sn.size(), "%.2X", byte);
+                            JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + sn, BasicJsonType()));
+                        }
+
+                        case error_handler_t::ignore:
+                        case error_handler_t::replace:
+                        {
+                            // in case we saw this character the first time, we
+                            // would like to read it again, because the byte
+                            // may be OK for itself, but just not OK for the
+                            // previous sequence
+                            if (undumped_chars > 0)
+                            {
+                                --i;
+                            }
+
+                            // reset length buffer to the last accepted index;
+                            // thus removing/ignoring the invalid characters
+                            bytes = bytes_after_last_accept;
+
+                            if (error_handler == error_handler_t::replace)
+                            {
+                                // add a replacement character
+                                if (ensure_ascii)
+                                {
+                                    string_buffer[bytes++] = '\\';
+                                    string_buffer[bytes++] = 'u';
+                                    string_buffer[bytes++] = 'f';
+                                    string_buffer[bytes++] = 'f';
+                                    string_buffer[bytes++] = 'f';
+                                    string_buffer[bytes++] = 'd';
+                                }
+                                else
+                                {
+                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xEF');
+                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBF');
+                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBD');
+                                }
+
+                                // write buffer and reset index; there must be 13 bytes
+                                // left, as this is the maximal number of bytes to be
+                                // written ("\uxxxx\uxxxx\0") for one code point
+                                if (string_buffer.size() - bytes < 13)
+                                {
+                                    o->write_characters(string_buffer.data(), bytes);
+                                    bytes = 0;
+                                }
+
+                                bytes_after_last_accept = bytes;
+                            }
+
+                            undumped_chars = 0;
+
+                            // continue processing the string
+                            state = UTF8_ACCEPT;
+                            break;
+                        }
+
+                        default:            // LCOV_EXCL_LINE
+                            JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+                    }
+                    break;
+                }
+
+                default:  // decode found yet incomplete multi-byte code point
+                {
+                    if (!ensure_ascii)
+                    {
+                        // code point will not be escaped - copy byte to buffer
+                        string_buffer[bytes++] = s[i];
+                    }
+                    ++undumped_chars;
+                    break;
+                }
+            }
+        }
+
+        // we finished processing the string
+        if (JSON_HEDLEY_LIKELY(state == UTF8_ACCEPT))
+        {
+            // write buffer
+            if (bytes > 0)
+            {
+                o->write_characters(string_buffer.data(), bytes);
+            }
+        }
+        else
+        {
+            // we finish reading, but do not accept: string was incomplete
+            switch (error_handler)
+            {
+                case error_handler_t::strict:
+                {
+                    std::string sn(9, '\0');
+                    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+                    (std::snprintf)(&sn[0], sn.size(), "%.2X", static_cast<std::uint8_t>(s.back()));
+                    JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + sn, BasicJsonType()));
+                }
+
+                case error_handler_t::ignore:
+                {
+                    // write all accepted bytes
+                    o->write_characters(string_buffer.data(), bytes_after_last_accept);
+                    break;
+                }
+
+                case error_handler_t::replace:
+                {
+                    // write all accepted bytes
+                    o->write_characters(string_buffer.data(), bytes_after_last_accept);
+                    // add a replacement character
+                    if (ensure_ascii)
+                    {
+                        o->write_characters("\\ufffd", 6);
+                    }
+                    else
+                    {
+                        o->write_characters("\xEF\xBF\xBD", 3);
+                    }
+                    break;
+                }
+
+                default:            // LCOV_EXCL_LINE
+                    JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+            }
+        }
+    }
+
+  private:
+    /*!
+    @brief count digits
+
+    Count the number of decimal (base 10) digits for an input unsigned integer.
+
+    @param[in] x  unsigned integer number to count its digits
+    @return    number of decimal digits
+    */
+    inline unsigned int count_digits(number_unsigned_t x) noexcept
+    {
+        unsigned int n_digits = 1;
+        for (;;)
+        {
+            if (x < 10)
+            {
+                return n_digits;
+            }
+            if (x < 100)
+            {
+                return n_digits + 1;
+            }
+            if (x < 1000)
+            {
+                return n_digits + 2;
+            }
+            if (x < 10000)
+            {
+                return n_digits + 3;
+            }
+            x = x / 10000u;
+            n_digits += 4;
+        }
+    }
+
+    /*!
+    @brief dump an integer
+
+    Dump a given integer to output stream @a o. Works internally with
+    @a number_buffer.
+
+    @param[in] x  integer number (signed or unsigned) to dump
+    @tparam NumberType either @a number_integer_t or @a number_unsigned_t
+    */
+    template < typename NumberType, detail::enable_if_t <
+                   std::is_integral<NumberType>::value ||
+                   std::is_same<NumberType, number_unsigned_t>::value ||
+                   std::is_same<NumberType, number_integer_t>::value ||
+                   std::is_same<NumberType, binary_char_t>::value,
+                   int > = 0 >
+    void dump_integer(NumberType x)
+    {
+        static constexpr std::array<std::array<char, 2>, 100> digits_to_99
+        {
+            {
+                {{'0', '0'}}, {{'0', '1'}}, {{'0', '2'}}, {{'0', '3'}}, {{'0', '4'}}, {{'0', '5'}}, {{'0', '6'}}, {{'0', '7'}}, {{'0', '8'}}, {{'0', '9'}},
+                {{'1', '0'}}, {{'1', '1'}}, {{'1', '2'}}, {{'1', '3'}}, {{'1', '4'}}, {{'1', '5'}}, {{'1', '6'}}, {{'1', '7'}}, {{'1', '8'}}, {{'1', '9'}},
+                {{'2', '0'}}, {{'2', '1'}}, {{'2', '2'}}, {{'2', '3'}}, {{'2', '4'}}, {{'2', '5'}}, {{'2', '6'}}, {{'2', '7'}}, {{'2', '8'}}, {{'2', '9'}},
+                {{'3', '0'}}, {{'3', '1'}}, {{'3', '2'}}, {{'3', '3'}}, {{'3', '4'}}, {{'3', '5'}}, {{'3', '6'}}, {{'3', '7'}}, {{'3', '8'}}, {{'3', '9'}},
+                {{'4', '0'}}, {{'4', '1'}}, {{'4', '2'}}, {{'4', '3'}}, {{'4', '4'}}, {{'4', '5'}}, {{'4', '6'}}, {{'4', '7'}}, {{'4', '8'}}, {{'4', '9'}},
+                {{'5', '0'}}, {{'5', '1'}}, {{'5', '2'}}, {{'5', '3'}}, {{'5', '4'}}, {{'5', '5'}}, {{'5', '6'}}, {{'5', '7'}}, {{'5', '8'}}, {{'5', '9'}},
+                {{'6', '0'}}, {{'6', '1'}}, {{'6', '2'}}, {{'6', '3'}}, {{'6', '4'}}, {{'6', '5'}}, {{'6', '6'}}, {{'6', '7'}}, {{'6', '8'}}, {{'6', '9'}},
+                {{'7', '0'}}, {{'7', '1'}}, {{'7', '2'}}, {{'7', '3'}}, {{'7', '4'}}, {{'7', '5'}}, {{'7', '6'}}, {{'7', '7'}}, {{'7', '8'}}, {{'7', '9'}},
+                {{'8', '0'}}, {{'8', '1'}}, {{'8', '2'}}, {{'8', '3'}}, {{'8', '4'}}, {{'8', '5'}}, {{'8', '6'}}, {{'8', '7'}}, {{'8', '8'}}, {{'8', '9'}},
+                {{'9', '0'}}, {{'9', '1'}}, {{'9', '2'}}, {{'9', '3'}}, {{'9', '4'}}, {{'9', '5'}}, {{'9', '6'}}, {{'9', '7'}}, {{'9', '8'}}, {{'9', '9'}},
+            }
+        };
+
+        // special case for "0"
+        if (x == 0)
+        {
+            o->write_character('0');
+            return;
+        }
+
+        // use a pointer to fill the buffer
+        auto buffer_ptr = number_buffer.begin(); // NOLINT(llvm-qualified-auto,readability-qualified-auto,cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+
+        const bool is_negative = std::is_signed<NumberType>::value && !(x >= 0); // see issue #755
+        number_unsigned_t abs_value;
+
+        unsigned int n_chars{};
+
+        if (is_negative)
+        {
+            *buffer_ptr = '-';
+            abs_value = remove_sign(static_cast<number_integer_t>(x));
+
+            // account one more byte for the minus sign
+            n_chars = 1 + count_digits(abs_value);
+        }
+        else
+        {
+            abs_value = static_cast<number_unsigned_t>(x);
+            n_chars = count_digits(abs_value);
+        }
+
+        // spare 1 byte for '\0'
+        JSON_ASSERT(n_chars < number_buffer.size() - 1);
+
+        // jump to the end to generate the string from backward
+        // so we later avoid reversing the result
+        buffer_ptr += n_chars;
+
+        // Fast int2ascii implementation inspired by "Fastware" talk by Andrei Alexandrescu
+        // See: https://www.youtube.com/watch?v=o4-CwDo2zpg
+        while (abs_value >= 100)
+        {
+            const auto digits_index = static_cast<unsigned>((abs_value % 100));
+            abs_value /= 100;
+            *(--buffer_ptr) = digits_to_99[digits_index][1];
+            *(--buffer_ptr) = digits_to_99[digits_index][0];
+        }
+
+        if (abs_value >= 10)
+        {
+            const auto digits_index = static_cast<unsigned>(abs_value);
+            *(--buffer_ptr) = digits_to_99[digits_index][1];
+            *(--buffer_ptr) = digits_to_99[digits_index][0];
+        }
+        else
+        {
+            *(--buffer_ptr) = static_cast<char>('0' + abs_value);
+        }
+
+        o->write_characters(number_buffer.data(), n_chars);
+    }
+
+    /*!
+    @brief dump a floating-point number
+
+    Dump a given floating-point number to output stream @a o. Works internally
+    with @a number_buffer.
+
+    @param[in] x  floating-point number to dump
+    */
+    void dump_float(number_float_t x)
+    {
+        // NaN / inf
+        if (!std::isfinite(x))
+        {
+            o->write_characters("null", 4);
+            return;
+        }
+
+        // If number_float_t is an IEEE-754 single or double precision number,
+        // use the Grisu2 algorithm to produce short numbers which are
+        // guaranteed to round-trip, using strtof and strtod, resp.
+        //
+        // NB: The test below works if <long double> == <double>.
+        static constexpr bool is_ieee_single_or_double
+            = (std::numeric_limits<number_float_t>::is_iec559 && std::numeric_limits<number_float_t>::digits == 24 && std::numeric_limits<number_float_t>::max_exponent == 128) ||
+              (std::numeric_limits<number_float_t>::is_iec559 && std::numeric_limits<number_float_t>::digits == 53 && std::numeric_limits<number_float_t>::max_exponent == 1024);
+
+        dump_float(x, std::integral_constant<bool, is_ieee_single_or_double>());
+    }
+
+    void dump_float(number_float_t x, std::true_type /*is_ieee_single_or_double*/)
+    {
+        auto* begin = number_buffer.data();
+        auto* end = ::nlohmann::detail::to_chars(begin, begin + number_buffer.size(), x);
+
+        o->write_characters(begin, static_cast<size_t>(end - begin));
+    }
+
+    void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/)
+    {
+        // get number of digits for a float -> text -> float round-trip
+        static constexpr auto d = std::numeric_limits<number_float_t>::max_digits10;
+
+        // the actual conversion
+        // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+        std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x);
+
+        // negative value indicates an error
+        JSON_ASSERT(len > 0);
+        // check if buffer was large enough
+        JSON_ASSERT(static_cast<std::size_t>(len) < number_buffer.size());
+
+        // erase thousands separator
+        if (thousands_sep != '\0')
+        {
+            // NOLINTNEXTLINE(readability-qualified-auto,llvm-qualified-auto): std::remove returns an iterator, see https://github.com/nlohmann/json/issues/3081
+            const auto end = std::remove(number_buffer.begin(), number_buffer.begin() + len, thousands_sep);
+            std::fill(end, number_buffer.end(), '\0');
+            JSON_ASSERT((end - number_buffer.begin()) <= len);
+            len = (end - number_buffer.begin());
+        }
+
+        // convert decimal point to '.'
+        if (decimal_point != '\0' && decimal_point != '.')
+        {
+            // NOLINTNEXTLINE(readability-qualified-auto,llvm-qualified-auto): std::find returns an iterator, see https://github.com/nlohmann/json/issues/3081
+            const auto dec_pos = std::find(number_buffer.begin(), number_buffer.end(), decimal_point);
+            if (dec_pos != number_buffer.end())
+            {
+                *dec_pos = '.';
+            }
+        }
+
+        o->write_characters(number_buffer.data(), static_cast<std::size_t>(len));
+
+        // determine if need to append ".0"
+        const bool value_is_int_like =
+            std::none_of(number_buffer.begin(), number_buffer.begin() + len + 1,
+                         [](char c)
+        {
+            return c == '.' || c == 'e';
+        });
+
+        if (value_is_int_like)
+        {
+            o->write_characters(".0", 2);
+        }
+    }
+
+    /*!
+    @brief check whether a string is UTF-8 encoded
+
+    The function checks each byte of a string whether it is UTF-8 encoded. The
+    result of the check is stored in the @a state parameter. The function must
+    be called initially with state 0 (accept). State 1 means the string must
+    be rejected, because the current byte is not allowed. If the string is
+    completely processed, but the state is non-zero, the string ended
+    prematurely; that is, the last byte indicated more bytes should have
+    followed.
+
+    @param[in,out] state  the state of the decoding
+    @param[in,out] codep  codepoint (valid only if resulting state is UTF8_ACCEPT)
+    @param[in] byte       next byte to decode
+    @return               new state
+
+    @note The function has been edited: a std::array is used.
+
+    @copyright Copyright (c) 2008-2009 Bjoern Hoehrmann <[email protected]>
+    @sa http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
+    */
+    static std::uint8_t decode(std::uint8_t& state, std::uint32_t& codep, const std::uint8_t byte) noexcept
+    {
+        static const std::array<std::uint8_t, 400> utf8d =
+        {
+            {
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00..1F
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20..3F
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40..5F
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60..7F
+                1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // 80..9F
+                7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // A0..BF
+                8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // C0..DF
+                0xA, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x4, 0x3, 0x3, // E0..EF
+                0xB, 0x6, 0x6, 0x6, 0x5, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, // F0..FF
+                0x0, 0x1, 0x2, 0x3, 0x5, 0x8, 0x7, 0x1, 0x1, 0x1, 0x4, 0x6, 0x1, 0x1, 0x1, 0x1, // s0..s0
+                1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, // s1..s2
+                1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, // s3..s4
+                1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, // s5..s6
+                1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // s7..s8
+            }
+        };
+
+        JSON_ASSERT(byte < utf8d.size());
+        const std::uint8_t type = utf8d[byte];
+
+        codep = (state != UTF8_ACCEPT)
+                ? (byte & 0x3fu) | (codep << 6u)
+                : (0xFFu >> type) & (byte);
+
+        std::size_t index = 256u + static_cast<size_t>(state) * 16u + static_cast<size_t>(type);
+        JSON_ASSERT(index < 400);
+        state = utf8d[index];
+        return state;
+    }
+
+    /*
+     * Overload to make the compiler happy while it is instantiating
+     * dump_integer for number_unsigned_t.
+     * Must never be called.
+     */
+    number_unsigned_t remove_sign(number_unsigned_t x)
+    {
+        JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+        return x; // LCOV_EXCL_LINE
+    }
+
+    /*
+     * Helper function for dump_integer
+     *
+     * This function takes a negative signed integer and returns its absolute
+     * value as unsigned integer. The plus/minus shuffling is necessary as we can
+     * not directly remove the sign of an arbitrary signed integer as the
+     * absolute values of INT_MIN and INT_MAX are usually not the same. See
+     * #1708 for details.
+     */
+    inline number_unsigned_t remove_sign(number_integer_t x) noexcept
+    {
+        JSON_ASSERT(x < 0 && x < (std::numeric_limits<number_integer_t>::max)()); // NOLINT(misc-redundant-expression)
+        return static_cast<number_unsigned_t>(-(x + 1)) + 1;
+    }
+
+  private:
+    /// the output of the serializer
+    output_adapter_t<char> o = nullptr;
+
+    /// a (hopefully) large enough character buffer
+    std::array<char, 64> number_buffer{{}};
+
+    /// the locale
+    const std::lconv* loc = nullptr;
+    /// the locale's thousand separator character
+    const char thousands_sep = '\0';
+    /// the locale's decimal point character
+    const char decimal_point = '\0';
+
+    /// string buffer
+    std::array<char, 512> string_buffer{{}};
+
+    /// the indentation character
+    const char indent_char;
+    /// the indentation string
+    string_t indent_string;
+
+    /// error_handler how to react on decoding errors
+    const error_handler_t error_handler;
+};
+}  // namespace detail
+}  // namespace nlohmann
+
+// #include <nlohmann/detail/value_t.hpp>
+
+// #include <nlohmann/json_fwd.hpp>
+
+// #include <nlohmann/ordered_map.hpp>
+
+
+#include <functional> // less
+#include <initializer_list> // initializer_list
+#include <iterator> // input_iterator_tag, iterator_traits
+#include <memory> // allocator
+#include <stdexcept> // for out_of_range
+#include <type_traits> // enable_if, is_convertible
+#include <utility> // pair
+#include <vector> // vector
+
+// #include <nlohmann/detail/macro_scope.hpp>
+
+
+namespace nlohmann
+{
+
+/// ordered_map: a minimal map-like container that preserves insertion order
+/// for use within nlohmann::basic_json<ordered_map>
+template <class Key, class T, class IgnoredLess = std::less<Key>,
+          class Allocator = std::allocator<std::pair<const Key, T>>>
+                  struct ordered_map : std::vector<std::pair<const Key, T>, Allocator>
+{
+    using key_type = Key;
+    using mapped_type = T;
+    using Container = std::vector<std::pair<const Key, T>, Allocator>;
+    using typename Container::iterator;
+    using typename Container::const_iterator;
+    using typename Container::size_type;
+    using typename Container::value_type;
+
+    // Explicit constructors instead of `using Container::Container`
+    // otherwise older compilers choke on it (GCC <= 5.5, xcode <= 9.4)
+    ordered_map(const Allocator& alloc = Allocator()) : Container{alloc} {}
+    template <class It>
+    ordered_map(It first, It last, const Allocator& alloc = Allocator())
+        : Container{first, last, alloc} {}
+    ordered_map(std::initializer_list<T> init, const Allocator& alloc = Allocator() )
+        : Container{init, alloc} {}
+
+    std::pair<iterator, bool> emplace(const key_type& key, T&& t)
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                return {it, false};
+            }
+        }
+        Container::emplace_back(key, t);
+        return {--this->end(), true};
+    }
+
+    T& operator[](const Key& key)
+    {
+        return emplace(key, T{}).first->second;
+    }
+
+    const T& operator[](const Key& key) const
+    {
+        return at(key);
+    }
+
+    T& at(const Key& key)
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                return it->second;
+            }
+        }
+
+        JSON_THROW(std::out_of_range("key not found"));
+    }
+
+    const T& at(const Key& key) const
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                return it->second;
+            }
+        }
+
+        JSON_THROW(std::out_of_range("key not found"));
+    }
+
+    size_type erase(const Key& key)
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                // Since we cannot move const Keys, re-construct them in place
+                for (auto next = it; ++next != this->end(); ++it)
+                {
+                    it->~value_type(); // Destroy but keep allocation
+                    new (&*it) value_type{std::move(*next)};
+                }
+                Container::pop_back();
+                return 1;
+            }
+        }
+        return 0;
+    }
+
+    iterator erase(iterator pos)
+    {
+        auto it = pos;
+
+        // Since we cannot move const Keys, re-construct them in place
+        for (auto next = it; ++next != this->end(); ++it)
+        {
+            it->~value_type(); // Destroy but keep allocation
+            new (&*it) value_type{std::move(*next)};
+        }
+        Container::pop_back();
+        return pos;
+    }
+
+    size_type count(const Key& key) const
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                return 1;
+            }
+        }
+        return 0;
+    }
+
+    iterator find(const Key& key)
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                return it;
+            }
+        }
+        return Container::end();
+    }
+
+    const_iterator find(const Key& key) const
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == key)
+            {
+                return it;
+            }
+        }
+        return Container::end();
+    }
+
+    std::pair<iterator, bool> insert( value_type&& value )
+    {
+        return emplace(value.first, std::move(value.second));
+    }
+
+    std::pair<iterator, bool> insert( const value_type& value )
+    {
+        for (auto it = this->begin(); it != this->end(); ++it)
+        {
+            if (it->first == value.first)
+            {
+                return {it, false};
+            }
+        }
+        Container::push_back(value);
+        return {--this->end(), true};
+    }
+
+    template<typename InputIt>
+    using require_input_iter = typename std::enable_if<std::is_convertible<typename std::iterator_traits<InputIt>::iterator_category,
+            std::input_iterator_tag>::value>::type;
+
+    template<typename InputIt, typename = require_input_iter<InputIt>>
+    void insert(InputIt first, InputIt last)
+    {
+        for (auto it = first; it != last; ++it)
+        {
+            insert(*it);
+        }
+    }
+};
+
+}  // namespace nlohmann
+
+
+#if defined(JSON_HAS_CPP_17)
+    #include <string_view>
+#endif
+
+/*!
+@brief namespace for Niels Lohmann
+@see https://github.com/nlohmann
+@since version 1.0.0
+*/
+namespace nlohmann
+{
+
+/*!
+@brief a class to store JSON values
+
+@tparam ObjectType type for JSON objects (`std::map` by default; will be used
+in @ref object_t)
+@tparam ArrayType type for JSON arrays (`std::vector` by default; will be used
+in @ref array_t)
+@tparam StringType type for JSON strings and object keys (`std::string` by
+default; will be used in @ref string_t)
+@tparam BooleanType type for JSON booleans (`bool` by default; will be used
+in @ref boolean_t)
+@tparam NumberIntegerType type for JSON integer numbers (`int64_t` by
+default; will be used in @ref number_integer_t)
+@tparam NumberUnsignedType type for JSON unsigned integer numbers (@c
+`uint64_t` by default; will be used in @ref number_unsigned_t)
+@tparam NumberFloatType type for JSON floating-point numbers (`double` by
+default; will be used in @ref number_float_t)
+@tparam BinaryType type for packed binary data for compatibility with binary
+serialization formats (`std::vector<std::uint8_t>` by default; will be used in
+@ref binary_t)
+@tparam AllocatorType type of the allocator to use (`std::allocator` by
+default)
+@tparam JSONSerializer the serializer to resolve internal calls to `to_json()`
+and `from_json()` (@ref adl_serializer by default)
+
+@requirement The class satisfies the following concept requirements:
+- Basic
+ - [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible):
+   JSON values can be default constructed. The result will be a JSON null
+   value.
+ - [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible):
+   A JSON value can be constructed from an rvalue argument.
+ - [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible):
+   A JSON value can be copy-constructed from an lvalue expression.
+ - [MoveAssignable](https://en.cppreference.com/w/cpp/named_req/MoveAssignable):
+   A JSON value van be assigned from an rvalue argument.
+ - [CopyAssignable](https://en.cppreference.com/w/cpp/named_req/CopyAssignable):
+   A JSON value can be copy-assigned from an lvalue expression.
+ - [Destructible](https://en.cppreference.com/w/cpp/named_req/Destructible):
+   JSON values can be destructed.
+- Layout
+ - [StandardLayoutType](https://en.cppreference.com/w/cpp/named_req/StandardLayoutType):
+   JSON values have
+   [standard layout](https://en.cppreference.com/w/cpp/language/data_members#Standard_layout):
+   All non-static data members are private and standard layout types, the
+   class has no virtual functions or (virtual) base classes.
+- Library-wide
+ - [EqualityComparable](https://en.cppreference.com/w/cpp/named_req/EqualityComparable):
+   JSON values can be compared with `==`, see @ref
+   operator==(const_reference,const_reference).
+ - [LessThanComparable](https://en.cppreference.com/w/cpp/named_req/LessThanComparable):
+   JSON values can be compared with `<`, see @ref
+   operator<(const_reference,const_reference).
+ - [Swappable](https://en.cppreference.com/w/cpp/named_req/Swappable):
+   Any JSON lvalue or rvalue of can be swapped with any lvalue or rvalue of
+   other compatible types, using unqualified function call @ref swap().
+ - [NullablePointer](https://en.cppreference.com/w/cpp/named_req/NullablePointer):
+   JSON values can be compared against `std::nullptr_t` objects which are used
+   to model the `null` value.
+- Container
+ - [Container](https://en.cppreference.com/w/cpp/named_req/Container):
+   JSON values can be used like STL containers and provide iterator access.
+ - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer);
+   JSON values can be used like STL containers and provide reverse iterator
+   access.
+
+@invariant The member variables @a m_value and @a m_type have the following
+relationship:
+- If `m_type == value_t::object`, then `m_value.object != nullptr`.
+- If `m_type == value_t::array`, then `m_value.array != nullptr`.
+- If `m_type == value_t::string`, then `m_value.string != nullptr`.
+The invariants are checked by member function assert_invariant().
+
+@internal
+@note ObjectType trick from https://stackoverflow.com/a/9860911
+@endinternal
+
+@see [RFC 8259: The JavaScript Object Notation (JSON) Data Interchange
+Format](https://tools.ietf.org/html/rfc8259)
+
+@since version 1.0.0
+
+@nosubgrouping
+*/
+NLOHMANN_BASIC_JSON_TPL_DECLARATION
+class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-special-member-functions)
+{
+  private:
+    template<detail::value_t> friend struct detail::external_constructor;
+    friend ::nlohmann::json_pointer<basic_json>;
+
+    template<typename BasicJsonType, typename InputType>
+    friend class ::nlohmann::detail::parser;
+    friend ::nlohmann::detail::serializer<basic_json>;
+    template<typename BasicJsonType>
+    friend class ::nlohmann::detail::iter_impl;
+    template<typename BasicJsonType, typename CharType>
+    friend class ::nlohmann::detail::binary_writer;
+    template<typename BasicJsonType, typename InputType, typename SAX>
+    friend class ::nlohmann::detail::binary_reader;
+    template<typename BasicJsonType>
+    friend class ::nlohmann::detail::json_sax_dom_parser;
+    template<typename BasicJsonType>
+    friend class ::nlohmann::detail::json_sax_dom_callback_parser;
+    friend class ::nlohmann::detail::exception;
+
+    /// workaround type for MSVC
+    using basic_json_t = NLOHMANN_BASIC_JSON_TPL;
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    // convenience aliases for types residing in namespace detail;
+    using lexer = ::nlohmann::detail::lexer_base<basic_json>;
+
+    template<typename InputAdapterType>
+    static ::nlohmann::detail::parser<basic_json, InputAdapterType> parser(
+        InputAdapterType adapter,
+        detail::parser_callback_t<basic_json>cb = nullptr,
+        const bool allow_exceptions = true,
+        const bool ignore_comments = false
+                                 )
+    {
+        return ::nlohmann::detail::parser<basic_json, InputAdapterType>(std::move(adapter),
+                std::move(cb), allow_exceptions, ignore_comments);
+    }
+
+  private:
+    using primitive_iterator_t = ::nlohmann::detail::primitive_iterator_t;
+    template<typename BasicJsonType>
+    using internal_iterator = ::nlohmann::detail::internal_iterator<BasicJsonType>;
+    template<typename BasicJsonType>
+    using iter_impl = ::nlohmann::detail::iter_impl<BasicJsonType>;
+    template<typename Iterator>
+    using iteration_proxy = ::nlohmann::detail::iteration_proxy<Iterator>;
+    template<typename Base> using json_reverse_iterator = ::nlohmann::detail::json_reverse_iterator<Base>;
+
+    template<typename CharType>
+    using output_adapter_t = ::nlohmann::detail::output_adapter_t<CharType>;
+
+    template<typename InputType>
+    using binary_reader = ::nlohmann::detail::binary_reader<basic_json, InputType>;
+    template<typename CharType> using binary_writer = ::nlohmann::detail::binary_writer<basic_json, CharType>;
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    using serializer = ::nlohmann::detail::serializer<basic_json>;
+
+  public:
+    using value_t = detail::value_t;
+    /// JSON Pointer, see @ref nlohmann::json_pointer
+    using json_pointer = ::nlohmann::json_pointer<basic_json>;
+    template<typename T, typename SFINAE>
+    using json_serializer = JSONSerializer<T, SFINAE>;
+    /// how to treat decoding errors
+    using error_handler_t = detail::error_handler_t;
+    /// how to treat CBOR tags
+    using cbor_tag_handler_t = detail::cbor_tag_handler_t;
+    /// helper type for initializer lists of basic_json values
+    using initializer_list_t = std::initializer_list<detail::json_ref<basic_json>>;
+
+    using input_format_t = detail::input_format_t;
+    /// SAX interface type, see @ref nlohmann::json_sax
+    using json_sax_t = json_sax<basic_json>;
+
+    ////////////////
+    // exceptions //
+    ////////////////
+
+    /// @name exceptions
+    /// Classes to implement user-defined exceptions.
+    /// @{
+
+    /// @copydoc detail::exception
+    using exception = detail::exception;
+    /// @copydoc detail::parse_error
+    using parse_error = detail::parse_error;
+    /// @copydoc detail::invalid_iterator
+    using invalid_iterator = detail::invalid_iterator;
+    /// @copydoc detail::type_error
+    using type_error = detail::type_error;
+    /// @copydoc detail::out_of_range
+    using out_of_range = detail::out_of_range;
+    /// @copydoc detail::other_error
+    using other_error = detail::other_error;
+
+    /// @}
+
+
+    /////////////////////
+    // container types //
+    /////////////////////
+
+    /// @name container types
+    /// The canonic container types to use @ref basic_json like any other STL
+    /// container.
+    /// @{
+
+    /// the type of elements in a basic_json container
+    using value_type = basic_json;
+
+    /// the type of an element reference
+    using reference = value_type&;
+    /// the type of an element const reference
+    using const_reference = const value_type&;
+
+    /// a type to represent differences between iterators
+    using difference_type = std::ptrdiff_t;
+    /// a type to represent container sizes
+    using size_type = std::size_t;
+
+    /// the allocator type
+    using allocator_type = AllocatorType<basic_json>;
+
+    /// the type of an element pointer
+    using pointer = typename std::allocator_traits<allocator_type>::pointer;
+    /// the type of an element const pointer
+    using const_pointer = typename std::allocator_traits<allocator_type>::const_pointer;
+
+    /// an iterator for a basic_json container
+    using iterator = iter_impl<basic_json>;
+    /// a const iterator for a basic_json container
+    using const_iterator = iter_impl<const basic_json>;
+    /// a reverse iterator for a basic_json container
+    using reverse_iterator = json_reverse_iterator<typename basic_json::iterator>;
+    /// a const reverse iterator for a basic_json container
+    using const_reverse_iterator = json_reverse_iterator<typename basic_json::const_iterator>;
+
+    /// @}
+
+
+    /*!
+    @brief returns the allocator associated with the container
+    */
+    static allocator_type get_allocator()
+    {
+        return allocator_type();
+    }
+
+    /*!
+    @brief returns version information on the library
+
+    This function returns a JSON object with information about the library,
+    including the version number and information on the platform and compiler.
+
+    @return JSON object holding version information
+    key         | description
+    ----------- | ---------------
+    `compiler`  | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version).
+    `copyright` | The copyright line for the library as string.
+    `name`      | The name of the library as string.
+    `platform`  | The used platform as string. Possible values are `win32`, `linux`, `apple`, `unix`, and `unknown`.
+    `url`       | The URL of the project as string.
+    `version`   | The version of the library. It is an object with the following keys: `major`, `minor`, and `patch` as defined by [Semantic Versioning](http://semver.org), and `string` (the version string).
+
+    @liveexample{The following code shows an example output of the `meta()`
+    function.,meta}
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @complexity Constant.
+
+    @since 2.1.0
+    */
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json meta()
+    {
+        basic_json result;
+
+        result["copyright"] = "(C) 2013-2021 Niels Lohmann";
+        result["name"] = "JSON for Modern C++";
+        result["url"] = "https://github.com/nlohmann/json";
+        result["version"]["string"] =
+            std::to_string(NLOHMANN_JSON_VERSION_MAJOR) + "." +
+            std::to_string(NLOHMANN_JSON_VERSION_MINOR) + "." +
+            std::to_string(NLOHMANN_JSON_VERSION_PATCH);
+        result["version"]["major"] = NLOHMANN_JSON_VERSION_MAJOR;
+        result["version"]["minor"] = NLOHMANN_JSON_VERSION_MINOR;
+        result["version"]["patch"] = NLOHMANN_JSON_VERSION_PATCH;
+
+#ifdef _WIN32
+        result["platform"] = "win32";
+#elif defined __linux__
+        result["platform"] = "linux";
+#elif defined __APPLE__
+        result["platform"] = "apple";
+#elif defined __unix__
+        result["platform"] = "unix";
+#else
+        result["platform"] = "unknown";
+#endif
+
+#if defined(__ICC) || defined(__INTEL_COMPILER)
+        result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}};
+#elif defined(__clang__)
+        result["compiler"] = {{"family", "clang"}, {"version", __clang_version__}};
+#elif defined(__GNUC__) || defined(__GNUG__)
+        result["compiler"] = {{"family", "gcc"}, {"version", std::to_string(__GNUC__) + "." + std::to_string(__GNUC_MINOR__) + "." + std::to_string(__GNUC_PATCHLEVEL__)}};
+#elif defined(__HP_cc) || defined(__HP_aCC)
+        result["compiler"] = "hp"
+#elif defined(__IBMCPP__)
+        result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}};
+#elif defined(_MSC_VER)
+        result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}};
+#elif defined(__PGI)
+        result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}};
+#elif defined(__SUNPRO_CC)
+        result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}};
+#else
+        result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}};
+#endif
+
+#ifdef __cplusplus
+        result["compiler"]["c++"] = std::to_string(__cplusplus);
+#else
+        result["compiler"]["c++"] = "unknown";
+#endif
+        return result;
+    }
+
+
+    ///////////////////////////
+    // JSON value data types //
+    ///////////////////////////
+
+    /// @name JSON value data types
+    /// The data types to store a JSON value. These types are derived from
+    /// the template arguments passed to class @ref basic_json.
+    /// @{
+
+#if defined(JSON_HAS_CPP_14)
+    // Use transparent comparator if possible, combined with perfect forwarding
+    // on find() and count() calls prevents unnecessary string construction.
+    using object_comparator_t = std::less<>;
+#else
+    using object_comparator_t = std::less<StringType>;
+#endif
+
+    /*!
+    @brief a type for an object
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON objects as follows:
+    > An object is an unordered collection of zero or more name/value pairs,
+    > where a name is a string and a value is a string, number, boolean, null,
+    > object, or array.
+
+    To store objects in C++, a type is defined by the template parameters
+    described below.
+
+    @tparam ObjectType  the container to store objects (e.g., `std::map` or
+    `std::unordered_map`)
+    @tparam StringType the type of the keys or names (e.g., `std::string`).
+    The comparison function `std::less<StringType>` is used to order elements
+    inside the container.
+    @tparam AllocatorType the allocator to use for objects (e.g.,
+    `std::allocator`)
+
+    #### Default type
+
+    With the default values for @a ObjectType (`std::map`), @a StringType
+    (`std::string`), and @a AllocatorType (`std::allocator`), the default
+    value for @a object_t is:
+
+    @code {.cpp}
+    std::map<
+      std::string, // key_type
+      basic_json, // value_type
+      std::less<std::string>, // key_compare
+      std::allocator<std::pair<const std::string, basic_json>> // allocator_type
+    >
+    @endcode
+
+    #### Behavior
+
+    The choice of @a object_t influences the behavior of the JSON class. With
+    the default type, objects have the following behavior:
+
+    - When all names are unique, objects will be interoperable in the sense
+      that all software implementations receiving that object will agree on
+      the name-value mappings.
+    - When the names within an object are not unique, it is unspecified which
+      one of the values for a given key will be chosen. For instance,
+      `{"key": 2, "key": 1}` could be equal to either `{"key": 1}` or
+      `{"key": 2}`.
+    - Internally, name/value pairs are stored in lexicographical order of the
+      names. Objects will also be serialized (see @ref dump) in this order.
+      For instance, `{"b": 1, "a": 2}` and `{"a": 2, "b": 1}` will be stored
+      and serialized as `{"a": 2, "b": 1}`.
+    - When comparing objects, the order of the name/value pairs is irrelevant.
+      This makes objects interoperable in the sense that they will not be
+      affected by these differences. For instance, `{"b": 1, "a": 2}` and
+      `{"a": 2, "b": 1}` will be treated as equal.
+
+    #### Limits
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies:
+    > An implementation may set limits on the maximum depth of nesting.
+
+    In this class, the object's limit of nesting is not explicitly constrained.
+    However, a maximum depth of nesting may be introduced by the compiler or
+    runtime environment. A theoretical limit can be queried by calling the
+    @ref max_size function of a JSON object.
+
+    #### Storage
+
+    Objects are stored as pointers in a @ref basic_json type. That is, for any
+    access to object values, a pointer of type `object_t*` must be
+    dereferenced.
+
+    @sa see @ref array_t -- type for an array value
+
+    @since version 1.0.0
+
+    @note The order name/value pairs are added to the object is *not*
+    preserved by the library. Therefore, iterating an object may return
+    name/value pairs in a different order than they were originally stored. In
+    fact, keys will be traversed in alphabetical order as `std::map` with
+    `std::less` is used by default. Please note this behavior conforms to [RFC
+    8259](https://tools.ietf.org/html/rfc8259), because any order implements the
+    specified "unordered" nature of JSON objects.
+    */
+    using object_t = ObjectType<StringType,
+          basic_json,
+          object_comparator_t,
+          AllocatorType<std::pair<const StringType,
+          basic_json>>>;
+
+    /*!
+    @brief a type for an array
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON arrays as follows:
+    > An array is an ordered sequence of zero or more values.
+
+    To store objects in C++, a type is defined by the template parameters
+    explained below.
+
+    @tparam ArrayType  container type to store arrays (e.g., `std::vector` or
+    `std::list`)
+    @tparam AllocatorType allocator to use for arrays (e.g., `std::allocator`)
+
+    #### Default type
+
+    With the default values for @a ArrayType (`std::vector`) and @a
+    AllocatorType (`std::allocator`), the default value for @a array_t is:
+
+    @code {.cpp}
+    std::vector<
+      basic_json, // value_type
+      std::allocator<basic_json> // allocator_type
+    >
+    @endcode
+
+    #### Limits
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies:
+    > An implementation may set limits on the maximum depth of nesting.
+
+    In this class, the array's limit of nesting is not explicitly constrained.
+    However, a maximum depth of nesting may be introduced by the compiler or
+    runtime environment. A theoretical limit can be queried by calling the
+    @ref max_size function of a JSON array.
+
+    #### Storage
+
+    Arrays are stored as pointers in a @ref basic_json type. That is, for any
+    access to array values, a pointer of type `array_t*` must be dereferenced.
+
+    @sa see @ref object_t -- type for an object value
+
+    @since version 1.0.0
+    */
+    using array_t = ArrayType<basic_json, AllocatorType<basic_json>>;
+
+    /*!
+    @brief a type for a string
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON strings as follows:
+    > A string is a sequence of zero or more Unicode characters.
+
+    To store objects in C++, a type is defined by the template parameter
+    described below. Unicode values are split by the JSON class into
+    byte-sized characters during deserialization.
+
+    @tparam StringType  the container to store strings (e.g., `std::string`).
+    Note this container is used for keys/names in objects, see @ref object_t.
+
+    #### Default type
+
+    With the default values for @a StringType (`std::string`), the default
+    value for @a string_t is:
+
+    @code {.cpp}
+    std::string
+    @endcode
+
+    #### Encoding
+
+    Strings are stored in UTF-8 encoding. Therefore, functions like
+    `std::string::size()` or `std::string::length()` return the number of
+    bytes in the string rather than the number of characters or glyphs.
+
+    #### String comparison
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) states:
+    > Software implementations are typically required to test names of object
+    > members for equality. Implementations that transform the textual
+    > representation into sequences of Unicode code units and then perform the
+    > comparison numerically, code unit by code unit, are interoperable in the
+    > sense that implementations will agree in all cases on equality or
+    > inequality of two strings. For example, implementations that compare
+    > strings with escaped characters unconverted may incorrectly find that
+    > `"a\\b"` and `"a\u005Cb"` are not equal.
+
+    This implementation is interoperable as it does compare strings code unit
+    by code unit.
+
+    #### Storage
+
+    String values are stored as pointers in a @ref basic_json type. That is,
+    for any access to string values, a pointer of type `string_t*` must be
+    dereferenced.
+
+    @since version 1.0.0
+    */
+    using string_t = StringType;
+
+    /*!
+    @brief a type for a boolean
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) implicitly describes a boolean as a
+    type which differentiates the two literals `true` and `false`.
+
+    To store objects in C++, a type is defined by the template parameter @a
+    BooleanType which chooses the type to use.
+
+    #### Default type
+
+    With the default values for @a BooleanType (`bool`), the default value for
+    @a boolean_t is:
+
+    @code {.cpp}
+    bool
+    @endcode
+
+    #### Storage
+
+    Boolean values are stored directly inside a @ref basic_json type.
+
+    @since version 1.0.0
+    */
+    using boolean_t = BooleanType;
+
+    /*!
+    @brief a type for a number (integer)
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows:
+    > The representation of numbers is similar to that used in most
+    > programming languages. A number is represented in base 10 using decimal
+    > digits. It contains an integer component that may be prefixed with an
+    > optional minus sign, which may be followed by a fraction part and/or an
+    > exponent part. Leading zeros are not allowed. (...) Numeric values that
+    > cannot be represented in the grammar below (such as Infinity and NaN)
+    > are not permitted.
+
+    This description includes both integer and floating-point numbers.
+    However, C++ allows more precise storage if it is known whether the number
+    is a signed integer, an unsigned integer or a floating-point number.
+    Therefore, three different types, @ref number_integer_t, @ref
+    number_unsigned_t and @ref number_float_t are used.
+
+    To store integer numbers in C++, a type is defined by the template
+    parameter @a NumberIntegerType which chooses the type to use.
+
+    #### Default type
+
+    With the default values for @a NumberIntegerType (`int64_t`), the default
+    value for @a number_integer_t is:
+
+    @code {.cpp}
+    int64_t
+    @endcode
+
+    #### Default behavior
+
+    - The restrictions about leading zeros is not enforced in C++. Instead,
+      leading zeros in integer literals lead to an interpretation as octal
+      number. Internally, the value will be stored as decimal number. For
+      instance, the C++ integer literal `010` will be serialized to `8`.
+      During deserialization, leading zeros yield an error.
+    - Not-a-number (NaN) values will be serialized to `null`.
+
+    #### Limits
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies:
+    > An implementation may set limits on the range and precision of numbers.
+
+    When the default type is used, the maximal integer number that can be
+    stored is `9223372036854775807` (INT64_MAX) and the minimal integer number
+    that can be stored is `-9223372036854775808` (INT64_MIN). Integer numbers
+    that are out of range will yield over/underflow when used in a
+    constructor. During deserialization, too large or small integer numbers
+    will be automatically be stored as @ref number_unsigned_t or @ref
+    number_float_t.
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
+    > Note that when such software is used, numbers that are integers and are
+    > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense
+    > that implementations will agree exactly on their numeric values.
+
+    As this range is a subrange of the exactly supported range [INT64_MIN,
+    INT64_MAX], this class's integer type is interoperable.
+
+    #### Storage
+
+    Integer number values are stored directly inside a @ref basic_json type.
+
+    @sa see @ref number_float_t -- type for number values (floating-point)
+
+    @sa see @ref number_unsigned_t -- type for number values (unsigned integer)
+
+    @since version 1.0.0
+    */
+    using number_integer_t = NumberIntegerType;
+
+    /*!
+    @brief a type for a number (unsigned)
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows:
+    > The representation of numbers is similar to that used in most
+    > programming languages. A number is represented in base 10 using decimal
+    > digits. It contains an integer component that may be prefixed with an
+    > optional minus sign, which may be followed by a fraction part and/or an
+    > exponent part. Leading zeros are not allowed. (...) Numeric values that
+    > cannot be represented in the grammar below (such as Infinity and NaN)
+    > are not permitted.
+
+    This description includes both integer and floating-point numbers.
+    However, C++ allows more precise storage if it is known whether the number
+    is a signed integer, an unsigned integer or a floating-point number.
+    Therefore, three different types, @ref number_integer_t, @ref
+    number_unsigned_t and @ref number_float_t are used.
+
+    To store unsigned integer numbers in C++, a type is defined by the
+    template parameter @a NumberUnsignedType which chooses the type to use.
+
+    #### Default type
+
+    With the default values for @a NumberUnsignedType (`uint64_t`), the
+    default value for @a number_unsigned_t is:
+
+    @code {.cpp}
+    uint64_t
+    @endcode
+
+    #### Default behavior
+
+    - The restrictions about leading zeros is not enforced in C++. Instead,
+      leading zeros in integer literals lead to an interpretation as octal
+      number. Internally, the value will be stored as decimal number. For
+      instance, the C++ integer literal `010` will be serialized to `8`.
+      During deserialization, leading zeros yield an error.
+    - Not-a-number (NaN) values will be serialized to `null`.
+
+    #### Limits
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies:
+    > An implementation may set limits on the range and precision of numbers.
+
+    When the default type is used, the maximal integer number that can be
+    stored is `18446744073709551615` (UINT64_MAX) and the minimal integer
+    number that can be stored is `0`. Integer numbers that are out of range
+    will yield over/underflow when used in a constructor. During
+    deserialization, too large or small integer numbers will be automatically
+    be stored as @ref number_integer_t or @ref number_float_t.
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
+    > Note that when such software is used, numbers that are integers and are
+    > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense
+    > that implementations will agree exactly on their numeric values.
+
+    As this range is a subrange (when considered in conjunction with the
+    number_integer_t type) of the exactly supported range [0, UINT64_MAX],
+    this class's integer type is interoperable.
+
+    #### Storage
+
+    Integer number values are stored directly inside a @ref basic_json type.
+
+    @sa see @ref number_float_t -- type for number values (floating-point)
+    @sa see @ref number_integer_t -- type for number values (integer)
+
+    @since version 2.0.0
+    */
+    using number_unsigned_t = NumberUnsignedType;
+
+    /*!
+    @brief a type for a number (floating-point)
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows:
+    > The representation of numbers is similar to that used in most
+    > programming languages. A number is represented in base 10 using decimal
+    > digits. It contains an integer component that may be prefixed with an
+    > optional minus sign, which may be followed by a fraction part and/or an
+    > exponent part. Leading zeros are not allowed. (...) Numeric values that
+    > cannot be represented in the grammar below (such as Infinity and NaN)
+    > are not permitted.
+
+    This description includes both integer and floating-point numbers.
+    However, C++ allows more precise storage if it is known whether the number
+    is a signed integer, an unsigned integer or a floating-point number.
+    Therefore, three different types, @ref number_integer_t, @ref
+    number_unsigned_t and @ref number_float_t are used.
+
+    To store floating-point numbers in C++, a type is defined by the template
+    parameter @a NumberFloatType which chooses the type to use.
+
+    #### Default type
+
+    With the default values for @a NumberFloatType (`double`), the default
+    value for @a number_float_t is:
+
+    @code {.cpp}
+    double
+    @endcode
+
+    #### Default behavior
+
+    - The restrictions about leading zeros is not enforced in C++. Instead,
+      leading zeros in floating-point literals will be ignored. Internally,
+      the value will be stored as decimal number. For instance, the C++
+      floating-point literal `01.2` will be serialized to `1.2`. During
+      deserialization, leading zeros yield an error.
+    - Not-a-number (NaN) values will be serialized to `null`.
+
+    #### Limits
+
+    [RFC 8259](https://tools.ietf.org/html/rfc8259) states:
+    > This specification allows implementations to set limits on the range and
+    > precision of numbers accepted. Since software that implements IEEE
+    > 754-2008 binary64 (double precision) numbers is generally available and
+    > widely used, good interoperability can be achieved by implementations
+    > that expect no more precision or range than these provide, in the sense
+    > that implementations will approximate JSON numbers within the expected
+    > precision.
+
+    This implementation does exactly follow this approach, as it uses double
+    precision floating-point numbers. Note values smaller than
+    `-1.79769313486232e+308` and values greater than `1.79769313486232e+308`
+    will be stored as NaN internally and be serialized to `null`.
+
+    #### Storage
+
+    Floating-point number values are stored directly inside a @ref basic_json
+    type.
+
+    @sa see @ref number_integer_t -- type for number values (integer)
+
+    @sa see @ref number_unsigned_t -- type for number values (unsigned integer)
+
+    @since version 1.0.0
+    */
+    using number_float_t = NumberFloatType;
+
+    /*!
+    @brief a type for a packed binary type
+
+    This type is a type designed to carry binary data that appears in various
+    serialized formats, such as CBOR's Major Type 2, MessagePack's bin, and
+    BSON's generic binary subtype. This type is NOT a part of standard JSON and
+    exists solely for compatibility with these binary types. As such, it is
+    simply defined as an ordered sequence of zero or more byte values.
+
+    Additionally, as an implementation detail, the subtype of the binary data is
+    carried around as a `std::uint8_t`, which is compatible with both of the
+    binary data formats that use binary subtyping, (though the specific
+    numbering is incompatible with each other, and it is up to the user to
+    translate between them).
+
+    [CBOR's RFC 7049](https://tools.ietf.org/html/rfc7049) describes this type
+    as:
+    > Major type 2: a byte string. The string's length in bytes is represented
+    > following the rules for positive integers (major type 0).
+
+    [MessagePack's documentation on the bin type
+    family](https://github.com/msgpack/msgpack/blob/master/spec.md#bin-format-family)
+    describes this type as:
+    > Bin format family stores an byte array in 2, 3, or 5 bytes of extra bytes
+    > in addition to the size of the byte array.
+
+    [BSON's specifications](http://bsonspec.org/spec.html) describe several
+    binary types; however, this type is intended to represent the generic binary
+    type which has the description:
+    > Generic binary subtype - This is the most commonly used binary subtype and
+    > should be the 'default' for drivers and tools.
+
+    None of these impose any limitations on the internal representation other
+    than the basic unit of storage be some type of array whose parts are
+    decomposable into bytes.
+
+    The default representation of this binary format is a
+    `std::vector<std::uint8_t>`, which is a very common way to represent a byte
+    array in modern C++.
+
+    #### Default type
+
+    The default values for @a BinaryType is `std::vector<std::uint8_t>`
+
+    #### Storage
+
+    Binary Arrays are stored as pointers in a @ref basic_json type. That is,
+    for any access to array values, a pointer of the type `binary_t*` must be
+    dereferenced.
+
+    #### Notes on subtypes
+
+    - CBOR
+       - Binary values are represented as byte strings. Subtypes are serialized
+         as tagged values.
+    - MessagePack
+       - If a subtype is given and the binary array contains exactly 1, 2, 4, 8,
+         or 16 elements, the fixext family (fixext1, fixext2, fixext4, fixext8)
+         is used. For other sizes, the ext family (ext8, ext16, ext32) is used.
+         The subtype is then added as singed 8-bit integer.
+       - If no subtype is given, the bin family (bin8, bin16, bin32) is used.
+    - BSON
+       - If a subtype is given, it is used and added as unsigned 8-bit integer.
+       - If no subtype is given, the generic binary subtype 0x00 is used.
+
+    @sa see @ref binary -- create a binary array
+
+    @since version 3.8.0
+    */
+    using binary_t = nlohmann::byte_container_with_subtype<BinaryType>;
+    /// @}
+
+  private:
+
+    /// helper for exception-safe object creation
+    template<typename T, typename... Args>
+    JSON_HEDLEY_RETURNS_NON_NULL
+    static T* create(Args&& ... args)
+    {
+        AllocatorType<T> alloc;
+        using AllocatorTraits = std::allocator_traits<AllocatorType<T>>;
+
+        auto deleter = [&](T * obj)
+        {
+            AllocatorTraits::deallocate(alloc, obj, 1);
+        };
+        std::unique_ptr<T, decltype(deleter)> obj(AllocatorTraits::allocate(alloc, 1), deleter);
+        AllocatorTraits::construct(alloc, obj.get(), std::forward<Args>(args)...);
+        JSON_ASSERT(obj != nullptr);
+        return obj.release();
+    }
+
+    ////////////////////////
+    // JSON value storage //
+    ////////////////////////
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    /*!
+    @brief a JSON value
+
+    The actual storage for a JSON value of the @ref basic_json class. This
+    union combines the different storage types for the JSON value types
+    defined in @ref value_t.
+
+    JSON type | value_t type    | used type
+    --------- | --------------- | ------------------------
+    object    | object          | pointer to @ref object_t
+    array     | array           | pointer to @ref array_t
+    string    | string          | pointer to @ref string_t
+    boolean   | boolean         | @ref boolean_t
+    number    | number_integer  | @ref number_integer_t
+    number    | number_unsigned | @ref number_unsigned_t
+    number    | number_float    | @ref number_float_t
+    binary    | binary          | pointer to @ref binary_t
+    null      | null            | *no value is stored*
+
+    @note Variable-length types (objects, arrays, and strings) are stored as
+    pointers. The size of the union should not exceed 64 bits if the default
+    value types are used.
+
+    @since version 1.0.0
+    */
+    union json_value
+    {
+        /// object (stored with pointer to save storage)
+        object_t* object;
+        /// array (stored with pointer to save storage)
+        array_t* array;
+        /// string (stored with pointer to save storage)
+        string_t* string;
+        /// binary (stored with pointer to save storage)
+        binary_t* binary;
+        /// boolean
+        boolean_t boolean;
+        /// number (integer)
+        number_integer_t number_integer;
+        /// number (unsigned integer)
+        number_unsigned_t number_unsigned;
+        /// number (floating-point)
+        number_float_t number_float;
+
+        /// default constructor (for null values)
+        json_value() = default;
+        /// constructor for booleans
+        json_value(boolean_t v) noexcept : boolean(v) {}
+        /// constructor for numbers (integer)
+        json_value(number_integer_t v) noexcept : number_integer(v) {}
+        /// constructor for numbers (unsigned)
+        json_value(number_unsigned_t v) noexcept : number_unsigned(v) {}
+        /// constructor for numbers (floating-point)
+        json_value(number_float_t v) noexcept : number_float(v) {}
+        /// constructor for empty values of a given type
+        json_value(value_t t)
+        {
+            switch (t)
+            {
+                case value_t::object:
+                {
+                    object = create<object_t>();
+                    break;
+                }
+
+                case value_t::array:
+                {
+                    array = create<array_t>();
+                    break;
+                }
+
+                case value_t::string:
+                {
+                    string = create<string_t>("");
+                    break;
+                }
+
+                case value_t::binary:
+                {
+                    binary = create<binary_t>();
+                    break;
+                }
+
+                case value_t::boolean:
+                {
+                    boolean = boolean_t(false);
+                    break;
+                }
+
+                case value_t::number_integer:
+                {
+                    number_integer = number_integer_t(0);
+                    break;
+                }
+
+                case value_t::number_unsigned:
+                {
+                    number_unsigned = number_unsigned_t(0);
+                    break;
+                }
+
+                case value_t::number_float:
+                {
+                    number_float = number_float_t(0.0);
+                    break;
+                }
+
+                case value_t::null:
+                {
+                    object = nullptr;  // silence warning, see #821
+                    break;
+                }
+
+                case value_t::discarded:
+                default:
+                {
+                    object = nullptr;  // silence warning, see #821
+                    if (JSON_HEDLEY_UNLIKELY(t == value_t::null))
+                    {
+                        JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.10.4", basic_json())); // LCOV_EXCL_LINE
+                    }
+                    break;
+                }
+            }
+        }
+
+        /// constructor for strings
+        json_value(const string_t& value)
+        {
+            string = create<string_t>(value);
+        }
+
+        /// constructor for rvalue strings
+        json_value(string_t&& value)
+        {
+            string = create<string_t>(std::move(value));
+        }
+
+        /// constructor for objects
+        json_value(const object_t& value)
+        {
+            object = create<object_t>(value);
+        }
+
+        /// constructor for rvalue objects
+        json_value(object_t&& value)
+        {
+            object = create<object_t>(std::move(value));
+        }
+
+        /// constructor for arrays
+        json_value(const array_t& value)
+        {
+            array = create<array_t>(value);
+        }
+
+        /// constructor for rvalue arrays
+        json_value(array_t&& value)
+        {
+            array = create<array_t>(std::move(value));
+        }
+
+        /// constructor for binary arrays
+        json_value(const typename binary_t::container_type& value)
+        {
+            binary = create<binary_t>(value);
+        }
+
+        /// constructor for rvalue binary arrays
+        json_value(typename binary_t::container_type&& value)
+        {
+            binary = create<binary_t>(std::move(value));
+        }
+
+        /// constructor for binary arrays (internal type)
+        json_value(const binary_t& value)
+        {
+            binary = create<binary_t>(value);
+        }
+
+        /// constructor for rvalue binary arrays (internal type)
+        json_value(binary_t&& value)
+        {
+            binary = create<binary_t>(std::move(value));
+        }
+
+        void destroy(value_t t)
+        {
+            if (t == value_t::array || t == value_t::object)
+            {
+                // flatten the current json_value to a heap-allocated stack
+                std::vector<basic_json> stack;
+
+                // move the top-level items to stack
+                if (t == value_t::array)
+                {
+                    stack.reserve(array->size());
+                    std::move(array->begin(), array->end(), std::back_inserter(stack));
+                }
+                else
+                {
+                    stack.reserve(object->size());
+                    for (auto&& it : *object)
+                    {
+                        stack.push_back(std::move(it.second));
+                    }
+                }
+
+                while (!stack.empty())
+                {
+                    // move the last item to local variable to be processed
+                    basic_json current_item(std::move(stack.back()));
+                    stack.pop_back();
+
+                    // if current_item is array/object, move
+                    // its children to the stack to be processed later
+                    if (current_item.is_array())
+                    {
+                        std::move(current_item.m_value.array->begin(), current_item.m_value.array->end(), std::back_inserter(stack));
+
+                        current_item.m_value.array->clear();
+                    }
+                    else if (current_item.is_object())
+                    {
+                        for (auto&& it : *current_item.m_value.object)
+                        {
+                            stack.push_back(std::move(it.second));
+                        }
+
+                        current_item.m_value.object->clear();
+                    }
+
+                    // it's now safe that current_item get destructed
+                    // since it doesn't have any children
+                }
+            }
+
+            switch (t)
+            {
+                case value_t::object:
+                {
+                    AllocatorType<object_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, object);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, object, 1);
+                    break;
+                }
+
+                case value_t::array:
+                {
+                    AllocatorType<array_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, array);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, array, 1);
+                    break;
+                }
+
+                case value_t::string:
+                {
+                    AllocatorType<string_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, string);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, string, 1);
+                    break;
+                }
+
+                case value_t::binary:
+                {
+                    AllocatorType<binary_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, binary);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, binary, 1);
+                    break;
+                }
+
+                case value_t::null:
+                case value_t::boolean:
+                case value_t::number_integer:
+                case value_t::number_unsigned:
+                case value_t::number_float:
+                case value_t::discarded:
+                default:
+                {
+                    break;
+                }
+            }
+        }
+    };
+
+  private:
+    /*!
+    @brief checks the class invariants
+
+    This function asserts the class invariants. It needs to be called at the
+    end of every constructor to make sure that created objects respect the
+    invariant. Furthermore, it has to be called each time the type of a JSON
+    value is changed, because the invariant expresses a relationship between
+    @a m_type and @a m_value.
+
+    Furthermore, the parent relation is checked for arrays and objects: If
+    @a check_parents true and the value is an array or object, then the
+    container's elements must have the current value as parent.
+
+    @param[in] check_parents  whether the parent relation should be checked.
+               The value is true by default and should only be set to false
+               during destruction of objects when the invariant does not
+               need to hold.
+    */
+    void assert_invariant(bool check_parents = true) const noexcept
+    {
+        JSON_ASSERT(m_type != value_t::object || m_value.object != nullptr);
+        JSON_ASSERT(m_type != value_t::array || m_value.array != nullptr);
+        JSON_ASSERT(m_type != value_t::string || m_value.string != nullptr);
+        JSON_ASSERT(m_type != value_t::binary || m_value.binary != nullptr);
+
+#if JSON_DIAGNOSTICS
+        JSON_TRY
+        {
+            // cppcheck-suppress assertWithSideEffect
+            JSON_ASSERT(!check_parents || !is_structured() || std::all_of(begin(), end(), [this](const basic_json & j)
+            {
+                return j.m_parent == this;
+            }));
+        }
+        JSON_CATCH(...) {} // LCOV_EXCL_LINE
+#endif
+        static_cast<void>(check_parents);
+    }
+
+    void set_parents()
+    {
+#if JSON_DIAGNOSTICS
+        switch (m_type)
+        {
+            case value_t::array:
+            {
+                for (auto& element : *m_value.array)
+                {
+                    element.m_parent = this;
+                }
+                break;
+            }
+
+            case value_t::object:
+            {
+                for (auto& element : *m_value.object)
+                {
+                    element.second.m_parent = this;
+                }
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+                break;
+        }
+#endif
+    }
+
+    iterator set_parents(iterator it, typename iterator::difference_type count)
+    {
+#if JSON_DIAGNOSTICS
+        for (typename iterator::difference_type i = 0; i < count; ++i)
+        {
+            (it + i)->m_parent = this;
+        }
+#else
+        static_cast<void>(count);
+#endif
+        return it;
+    }
+
+    reference set_parent(reference j, std::size_t old_capacity = std::size_t(-1))
+    {
+#if JSON_DIAGNOSTICS
+        if (old_capacity != std::size_t(-1))
+        {
+            // see https://github.com/nlohmann/json/issues/2838
+            JSON_ASSERT(type() == value_t::array);
+            if (JSON_HEDLEY_UNLIKELY(m_value.array->capacity() != old_capacity))
+            {
+                // capacity has changed: update all parents
+                set_parents();
+                return j;
+            }
+        }
+
+        // ordered_json uses a vector internally, so pointers could have
+        // been invalidated; see https://github.com/nlohmann/json/issues/2962
+#ifdef JSON_HEDLEY_MSVC_VERSION
+#pragma warning(push )
+#pragma warning(disable : 4127) // ignore warning to replace if with if constexpr
+#endif
+        if (detail::is_ordered_map<object_t>::value)
+        {
+            set_parents();
+            return j;
+        }
+#ifdef JSON_HEDLEY_MSVC_VERSION
+#pragma warning( pop )
+#endif
+
+        j.m_parent = this;
+#else
+        static_cast<void>(j);
+        static_cast<void>(old_capacity);
+#endif
+        return j;
+    }
+
+  public:
+    //////////////////////////
+    // JSON parser callback //
+    //////////////////////////
+
+    /*!
+    @brief parser event types
+
+    The parser callback distinguishes the following events:
+    - `object_start`: the parser read `{` and started to process a JSON object
+    - `key`: the parser read a key of a value in an object
+    - `object_end`: the parser read `}` and finished processing a JSON object
+    - `array_start`: the parser read `[` and started to process a JSON array
+    - `array_end`: the parser read `]` and finished processing a JSON array
+    - `value`: the parser finished reading a JSON value
+
+    @image html callback_events.png "Example when certain parse events are triggered"
+
+    @sa see @ref parser_callback_t for more information and examples
+    */
+    using parse_event_t = detail::parse_event_t;
+
+    /*!
+    @brief per-element parser callback type
+
+    With a parser callback function, the result of parsing a JSON text can be
+    influenced. When passed to @ref parse, it is called on certain events
+    (passed as @ref parse_event_t via parameter @a event) with a set recursion
+    depth @a depth and context JSON value @a parsed. The return value of the
+    callback function is a boolean indicating whether the element that emitted
+    the callback shall be kept or not.
+
+    We distinguish six scenarios (determined by the event type) in which the
+    callback function can be called. The following table describes the values
+    of the parameters @a depth, @a event, and @a parsed.
+
+    parameter @a event | description | parameter @a depth | parameter @a parsed
+    ------------------ | ----------- | ------------------ | -------------------
+    parse_event_t::object_start | the parser read `{` and started to process a JSON object | depth of the parent of the JSON object | a JSON value with type discarded
+    parse_event_t::key | the parser read a key of a value in an object | depth of the currently parsed JSON object | a JSON string containing the key
+    parse_event_t::object_end | the parser read `}` and finished processing a JSON object | depth of the parent of the JSON object | the parsed JSON object
+    parse_event_t::array_start | the parser read `[` and started to process a JSON array | depth of the parent of the JSON array | a JSON value with type discarded
+    parse_event_t::array_end | the parser read `]` and finished processing a JSON array | depth of the parent of the JSON array | the parsed JSON array
+    parse_event_t::value | the parser finished reading a JSON value | depth of the value | the parsed JSON value
+
+    @image html callback_events.png "Example when certain parse events are triggered"
+
+    Discarding a value (i.e., returning `false`) has different effects
+    depending on the context in which function was called:
+
+    - Discarded values in structured types are skipped. That is, the parser
+      will behave as if the discarded value was never read.
+    - In case a value outside a structured type is skipped, it is replaced
+      with `null`. This case happens if the top-level element is skipped.
+
+    @param[in] depth  the depth of the recursion during parsing
+
+    @param[in] event  an event of type parse_event_t indicating the context in
+    the callback function has been called
+
+    @param[in,out] parsed  the current intermediate parse result; note that
+    writing to this value has no effect for parse_event_t::key events
+
+    @return Whether the JSON value which called the function during parsing
+    should be kept (`true`) or not (`false`). In the latter case, it is either
+    skipped completely or replaced by an empty discarded object.
+
+    @sa see @ref parse for examples
+
+    @since version 1.0.0
+    */
+    using parser_callback_t = detail::parser_callback_t<basic_json>;
+
+    //////////////////
+    // constructors //
+    //////////////////
+
+    /// @name constructors and destructors
+    /// Constructors of class @ref basic_json, copy/move constructor, copy
+    /// assignment, static functions creating objects, and the destructor.
+    /// @{
+
+    /*!
+    @brief create an empty value with a given type
+
+    Create an empty JSON value with a given type. The value will be default
+    initialized with an empty value which depends on the type:
+
+    Value type  | initial value
+    ----------- | -------------
+    null        | `null`
+    boolean     | `false`
+    string      | `""`
+    number      | `0`
+    object      | `{}`
+    array       | `[]`
+    binary      | empty array
+
+    @param[in] v  the type of the value to create
+
+    @complexity Constant.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @liveexample{The following code shows the constructor for different @ref
+    value_t values,basic_json__value_t}
+
+    @sa see @ref clear() -- restores the postcondition of this constructor
+
+    @since version 1.0.0
+    */
+    basic_json(const value_t v)
+        : m_type(v), m_value(v)
+    {
+        assert_invariant();
+    }
+
+    /*!
+    @brief create a null object
+
+    Create a `null` JSON value. It either takes a null pointer as parameter
+    (explicitly creating `null`) or no parameter (implicitly creating `null`).
+    The passed null pointer itself is not read -- it is only used to choose
+    the right constructor.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this constructor never throws
+    exceptions.
+
+    @liveexample{The following code shows the constructor with and without a
+    null pointer parameter.,basic_json__nullptr_t}
+
+    @since version 1.0.0
+    */
+    basic_json(std::nullptr_t = nullptr) noexcept
+        : basic_json(value_t::null)
+    {
+        assert_invariant();
+    }
+
+    /*!
+    @brief create a JSON value
+
+    This is a "catch all" constructor for all compatible JSON types; that is,
+    types for which a `to_json()` method exists. The constructor forwards the
+    parameter @a val to that method (to `json_serializer<U>::to_json` method
+    with `U = uncvref_t<CompatibleType>`, to be exact).
+
+    Template type @a CompatibleType includes, but is not limited to, the
+    following types:
+    - **arrays**: @ref array_t and all kinds of compatible containers such as
+      `std::vector`, `std::deque`, `std::list`, `std::forward_list`,
+      `std::array`, `std::valarray`, `std::set`, `std::unordered_set`,
+      `std::multiset`, and `std::unordered_multiset` with a `value_type` from
+      which a @ref basic_json value can be constructed.
+    - **objects**: @ref object_t and all kinds of compatible associative
+      containers such as `std::map`, `std::unordered_map`, `std::multimap`,
+      and `std::unordered_multimap` with a `key_type` compatible to
+      @ref string_t and a `value_type` from which a @ref basic_json value can
+      be constructed.
+    - **strings**: @ref string_t, string literals, and all compatible string
+      containers can be used.
+    - **numbers**: @ref number_integer_t, @ref number_unsigned_t,
+      @ref number_float_t, and all convertible number types such as `int`,
+      `size_t`, `int64_t`, `float` or `double` can be used.
+    - **boolean**: @ref boolean_t / `bool` can be used.
+    - **binary**: @ref binary_t / `std::vector<std::uint8_t>` may be used,
+      unfortunately because string literals cannot be distinguished from binary
+      character arrays by the C++ type system, all types compatible with `const
+      char*` will be directed to the string constructor instead.  This is both
+      for backwards compatibility, and due to the fact that a binary type is not
+      a standard JSON type.
+
+    See the examples below.
+
+    @tparam CompatibleType a type such that:
+    - @a CompatibleType is not derived from `std::istream`,
+    - @a CompatibleType is not @ref basic_json (to avoid hijacking copy/move
+         constructors),
+    - @a CompatibleType is not a different @ref basic_json type (i.e. with different template arguments)
+    - @a CompatibleType is not a @ref basic_json nested type (e.g.,
+         @ref json_pointer, @ref iterator, etc ...)
+    - `json_serializer<U>` has a `to_json(basic_json_t&, CompatibleType&&)` method
+
+    @tparam U = `uncvref_t<CompatibleType>`
+
+    @param[in] val the value to be forwarded to the respective constructor
+
+    @complexity Usually linear in the size of the passed @a val, also
+                depending on the implementation of the called `to_json()`
+                method.
+
+    @exceptionsafety Depends on the called constructor. For types directly
+    supported by the library (i.e., all types for which no `to_json()` function
+    was provided), strong guarantee holds: if an exception is thrown, there are
+    no changes to any JSON value.
+
+    @liveexample{The following code shows the constructor with several
+    compatible types.,basic_json__CompatibleType}
+
+    @since version 2.1.0
+    */
+    template < typename CompatibleType,
+               typename U = detail::uncvref_t<CompatibleType>,
+               detail::enable_if_t <
+                   !detail::is_basic_json<U>::value && detail::is_compatible_type<basic_json_t, U>::value, int > = 0 >
+    basic_json(CompatibleType && val) noexcept(noexcept( // NOLINT(bugprone-forwarding-reference-overload,bugprone-exception-escape)
+                JSONSerializer<U>::to_json(std::declval<basic_json_t&>(),
+                                           std::forward<CompatibleType>(val))))
+    {
+        JSONSerializer<U>::to_json(*this, std::forward<CompatibleType>(val));
+        set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief create a JSON value from an existing one
+
+    This is a constructor for existing @ref basic_json types.
+    It does not hijack copy/move constructors, since the parameter has different
+    template arguments than the current ones.
+
+    The constructor tries to convert the internal @ref m_value of the parameter.
+
+    @tparam BasicJsonType a type such that:
+    - @a BasicJsonType is a @ref basic_json type.
+    - @a BasicJsonType has different template arguments than @ref basic_json_t.
+
+    @param[in] val the @ref basic_json value to be converted.
+
+    @complexity Usually linear in the size of the passed @a val, also
+                depending on the implementation of the called `to_json()`
+                method.
+
+    @exceptionsafety Depends on the called constructor. For types directly
+    supported by the library (i.e., all types for which no `to_json()` function
+    was provided), strong guarantee holds: if an exception is thrown, there are
+    no changes to any JSON value.
+
+    @since version 3.2.0
+    */
+    template < typename BasicJsonType,
+               detail::enable_if_t <
+                   detail::is_basic_json<BasicJsonType>::value&& !std::is_same<basic_json, BasicJsonType>::value, int > = 0 >
+    basic_json(const BasicJsonType& val)
+    {
+        using other_boolean_t = typename BasicJsonType::boolean_t;
+        using other_number_float_t = typename BasicJsonType::number_float_t;
+        using other_number_integer_t = typename BasicJsonType::number_integer_t;
+        using other_number_unsigned_t = typename BasicJsonType::number_unsigned_t;
+        using other_string_t = typename BasicJsonType::string_t;
+        using other_object_t = typename BasicJsonType::object_t;
+        using other_array_t = typename BasicJsonType::array_t;
+        using other_binary_t = typename BasicJsonType::binary_t;
+
+        switch (val.type())
+        {
+            case value_t::boolean:
+                JSONSerializer<other_boolean_t>::to_json(*this, val.template get<other_boolean_t>());
+                break;
+            case value_t::number_float:
+                JSONSerializer<other_number_float_t>::to_json(*this, val.template get<other_number_float_t>());
+                break;
+            case value_t::number_integer:
+                JSONSerializer<other_number_integer_t>::to_json(*this, val.template get<other_number_integer_t>());
+                break;
+            case value_t::number_unsigned:
+                JSONSerializer<other_number_unsigned_t>::to_json(*this, val.template get<other_number_unsigned_t>());
+                break;
+            case value_t::string:
+                JSONSerializer<other_string_t>::to_json(*this, val.template get_ref<const other_string_t&>());
+                break;
+            case value_t::object:
+                JSONSerializer<other_object_t>::to_json(*this, val.template get_ref<const other_object_t&>());
+                break;
+            case value_t::array:
+                JSONSerializer<other_array_t>::to_json(*this, val.template get_ref<const other_array_t&>());
+                break;
+            case value_t::binary:
+                JSONSerializer<other_binary_t>::to_json(*this, val.template get_ref<const other_binary_t&>());
+                break;
+            case value_t::null:
+                *this = nullptr;
+                break;
+            case value_t::discarded:
+                m_type = value_t::discarded;
+                break;
+            default:            // LCOV_EXCL_LINE
+                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+        }
+        set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief create a container (array or object) from an initializer list
+
+    Creates a JSON value of type array or object from the passed initializer
+    list @a init. In case @a type_deduction is `true` (default), the type of
+    the JSON value to be created is deducted from the initializer list @a init
+    according to the following rules:
+
+    1. If the list is empty, an empty JSON object value `{}` is created.
+    2. If the list consists of pairs whose first element is a string, a JSON
+       object value is created where the first elements of the pairs are
+       treated as keys and the second elements are as values.
+    3. In all other cases, an array is created.
+
+    The rules aim to create the best fit between a C++ initializer list and
+    JSON values. The rationale is as follows:
+
+    1. The empty initializer list is written as `{}` which is exactly an empty
+       JSON object.
+    2. C++ has no way of describing mapped types other than to list a list of
+       pairs. As JSON requires that keys must be of type string, rule 2 is the
+       weakest constraint one can pose on initializer lists to interpret them
+       as an object.
+    3. In all other cases, the initializer list could not be interpreted as
+       JSON object type, so interpreting it as JSON array type is safe.
+
+    With the rules described above, the following JSON values cannot be
+    expressed by an initializer list:
+
+    - the empty array (`[]`): use @ref array(initializer_list_t)
+      with an empty initializer list in this case
+    - arrays whose elements satisfy rule 2: use @ref
+      array(initializer_list_t) with the same initializer list
+      in this case
+
+    @note When used without parentheses around an empty initializer list, @ref
+    basic_json() is called instead of this function, yielding the JSON null
+    value.
+
+    @param[in] init  initializer list with JSON values
+
+    @param[in] type_deduction internal parameter; when set to `true`, the type
+    of the JSON value is deducted from the initializer list @a init; when set
+    to `false`, the type provided via @a manual_type is forced. This mode is
+    used by the functions @ref array(initializer_list_t) and
+    @ref object(initializer_list_t).
+
+    @param[in] manual_type internal parameter; when @a type_deduction is set
+    to `false`, the created JSON value will use the provided type (only @ref
+    value_t::array and @ref value_t::object are valid); when @a type_deduction
+    is set to `true`, this parameter has no effect
+
+    @throw type_error.301 if @a type_deduction is `false`, @a manual_type is
+    `value_t::object`, but @a init contains an element which is not a pair
+    whose first element is a string. In this case, the constructor could not
+    create an object. If @a type_deduction would have be `true`, an array
+    would have been created. See @ref object(initializer_list_t)
+    for an example.
+
+    @complexity Linear in the size of the initializer list @a init.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @liveexample{The example below shows how JSON values are created from
+    initializer lists.,basic_json__list_init_t}
+
+    @sa see @ref array(initializer_list_t) -- create a JSON array
+    value from an initializer list
+    @sa see @ref object(initializer_list_t) -- create a JSON object
+    value from an initializer list
+
+    @since version 1.0.0
+    */
+    basic_json(initializer_list_t init,
+               bool type_deduction = true,
+               value_t manual_type = value_t::array)
+    {
+        // check if each element is an array with two elements whose first
+        // element is a string
+        bool is_an_object = std::all_of(init.begin(), init.end(),
+                                        [](const detail::json_ref<basic_json>& element_ref)
+        {
+            return element_ref->is_array() && element_ref->size() == 2 && (*element_ref)[0].is_string();
+        });
+
+        // adjust type if type deduction is not wanted
+        if (!type_deduction)
+        {
+            // if array is wanted, do not create an object though possible
+            if (manual_type == value_t::array)
+            {
+                is_an_object = false;
+            }
+
+            // if object is wanted but impossible, throw an exception
+            if (JSON_HEDLEY_UNLIKELY(manual_type == value_t::object && !is_an_object))
+            {
+                JSON_THROW(type_error::create(301, "cannot create object from initializer list", basic_json()));
+            }
+        }
+
+        if (is_an_object)
+        {
+            // the initializer list is a list of pairs -> create object
+            m_type = value_t::object;
+            m_value = value_t::object;
+
+            for (auto& element_ref : init)
+            {
+                auto element = element_ref.moved_or_copied();
+                m_value.object->emplace(
+                    std::move(*((*element.m_value.array)[0].m_value.string)),
+                    std::move((*element.m_value.array)[1]));
+            }
+        }
+        else
+        {
+            // the initializer list describes an array -> create array
+            m_type = value_t::array;
+            m_value.array = create<array_t>(init.begin(), init.end());
+        }
+
+        set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief explicitly create a binary array (without subtype)
+
+    Creates a JSON binary array value from a given binary container. Binary
+    values are part of various binary formats, such as CBOR, MessagePack, and
+    BSON. This constructor is used to create a value for serialization to those
+    formats.
+
+    @note Note, this function exists because of the difficulty in correctly
+    specifying the correct template overload in the standard value ctor, as both
+    JSON arrays and JSON binary arrays are backed with some form of a
+    `std::vector`. Because JSON binary arrays are a non-standard extension it
+    was decided that it would be best to prevent automatic initialization of a
+    binary array type, for backwards compatibility and so it does not happen on
+    accident.
+
+    @param[in] init container containing bytes to use as binary type
+
+    @return JSON binary array value
+
+    @complexity Linear in the size of @a init.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @since version 3.8.0
+    */
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json binary(const typename binary_t::container_type& init)
+    {
+        auto res = basic_json();
+        res.m_type = value_t::binary;
+        res.m_value = init;
+        return res;
+    }
+
+    /*!
+    @brief explicitly create a binary array (with subtype)
+
+    Creates a JSON binary array value from a given binary container. Binary
+    values are part of various binary formats, such as CBOR, MessagePack, and
+    BSON. This constructor is used to create a value for serialization to those
+    formats.
+
+    @note Note, this function exists because of the difficulty in correctly
+    specifying the correct template overload in the standard value ctor, as both
+    JSON arrays and JSON binary arrays are backed with some form of a
+    `std::vector`. Because JSON binary arrays are a non-standard extension it
+    was decided that it would be best to prevent automatic initialization of a
+    binary array type, for backwards compatibility and so it does not happen on
+    accident.
+
+    @param[in] init container containing bytes to use as binary type
+    @param[in] subtype subtype to use in MessagePack and BSON
+
+    @return JSON binary array value
+
+    @complexity Linear in the size of @a init.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @since version 3.8.0
+    */
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json binary(const typename binary_t::container_type& init, typename binary_t::subtype_type subtype)
+    {
+        auto res = basic_json();
+        res.m_type = value_t::binary;
+        res.m_value = binary_t(init, subtype);
+        return res;
+    }
+
+    /// @copydoc binary(const typename binary_t::container_type&)
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json binary(typename binary_t::container_type&& init)
+    {
+        auto res = basic_json();
+        res.m_type = value_t::binary;
+        res.m_value = std::move(init);
+        return res;
+    }
+
+    /// @copydoc binary(const typename binary_t::container_type&, typename binary_t::subtype_type)
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json binary(typename binary_t::container_type&& init, typename binary_t::subtype_type subtype)
+    {
+        auto res = basic_json();
+        res.m_type = value_t::binary;
+        res.m_value = binary_t(std::move(init), subtype);
+        return res;
+    }
+
+    /*!
+    @brief explicitly create an array from an initializer list
+
+    Creates a JSON array value from a given initializer list. That is, given a
+    list of values `a, b, c`, creates the JSON value `[a, b, c]`. If the
+    initializer list is empty, the empty array `[]` is created.
+
+    @note This function is only needed to express two edge cases that cannot
+    be realized with the initializer list constructor (@ref
+    basic_json(initializer_list_t, bool, value_t)). These cases
+    are:
+    1. creating an array whose elements are all pairs whose first element is a
+    string -- in this case, the initializer list constructor would create an
+    object, taking the first elements as keys
+    2. creating an empty array -- passing the empty initializer list to the
+    initializer list constructor yields an empty object
+
+    @param[in] init  initializer list with JSON values to create an array from
+    (optional)
+
+    @return JSON array value
+
+    @complexity Linear in the size of @a init.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @liveexample{The following code shows an example for the `array`
+    function.,array}
+
+    @sa see @ref basic_json(initializer_list_t, bool, value_t) --
+    create a JSON value from an initializer list
+    @sa see @ref object(initializer_list_t) -- create a JSON object
+    value from an initializer list
+
+    @since version 1.0.0
+    */
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json array(initializer_list_t init = {})
+    {
+        return basic_json(init, false, value_t::array);
+    }
+
+    /*!
+    @brief explicitly create an object from an initializer list
+
+    Creates a JSON object value from a given initializer list. The initializer
+    lists elements must be pairs, and their first elements must be strings. If
+    the initializer list is empty, the empty object `{}` is created.
+
+    @note This function is only added for symmetry reasons. In contrast to the
+    related function @ref array(initializer_list_t), there are
+    no cases which can only be expressed by this function. That is, any
+    initializer list @a init can also be passed to the initializer list
+    constructor @ref basic_json(initializer_list_t, bool, value_t).
+
+    @param[in] init  initializer list to create an object from (optional)
+
+    @return JSON object value
+
+    @throw type_error.301 if @a init is not a list of pairs whose first
+    elements are strings. In this case, no object can be created. When such a
+    value is passed to @ref basic_json(initializer_list_t, bool, value_t),
+    an array would have been created from the passed initializer list @a init.
+    See example below.
+
+    @complexity Linear in the size of @a init.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @liveexample{The following code shows an example for the `object`
+    function.,object}
+
+    @sa see @ref basic_json(initializer_list_t, bool, value_t) --
+    create a JSON value from an initializer list
+    @sa see @ref array(initializer_list_t) -- create a JSON array
+    value from an initializer list
+
+    @since version 1.0.0
+    */
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json object(initializer_list_t init = {})
+    {
+        return basic_json(init, false, value_t::object);
+    }
+
+    /*!
+    @brief construct an array with count copies of given value
+
+    Constructs a JSON array value by creating @a cnt copies of a passed value.
+    In case @a cnt is `0`, an empty array is created.
+
+    @param[in] cnt  the number of JSON copies of @a val to create
+    @param[in] val  the JSON value to copy
+
+    @post `std::distance(begin(),end()) == cnt` holds.
+
+    @complexity Linear in @a cnt.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @liveexample{The following code shows examples for the @ref
+    basic_json(size_type\, const basic_json&)
+    constructor.,basic_json__size_type_basic_json}
+
+    @since version 1.0.0
+    */
+    basic_json(size_type cnt, const basic_json& val)
+        : m_type(value_t::array)
+    {
+        m_value.array = create<array_t>(cnt, val);
+        set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief construct a JSON container given an iterator range
+
+    Constructs the JSON value with the contents of the range `[first, last)`.
+    The semantics depends on the different types a JSON value can have:
+    - In case of a null type, invalid_iterator.206 is thrown.
+    - In case of other primitive types (number, boolean, or string), @a first
+      must be `begin()` and @a last must be `end()`. In this case, the value is
+      copied. Otherwise, invalid_iterator.204 is thrown.
+    - In case of structured types (array, object), the constructor behaves as
+      similar versions for `std::vector` or `std::map`; that is, a JSON array
+      or object is constructed from the values in the range.
+
+    @tparam InputIT an input iterator type (@ref iterator or @ref
+    const_iterator)
+
+    @param[in] first begin of the range to copy from (included)
+    @param[in] last end of the range to copy from (excluded)
+
+    @pre Iterators @a first and @a last must be initialized. **This
+         precondition is enforced with an assertion (see warning).** If
+         assertions are switched off, a violation of this precondition yields
+         undefined behavior.
+
+    @pre Range `[first, last)` is valid. Usually, this precondition cannot be
+         checked efficiently. Only certain edge cases are detected; see the
+         description of the exceptions below. A violation of this precondition
+         yields undefined behavior.
+
+    @warning A precondition is enforced with a runtime assertion that will
+             result in calling `std::abort` if this precondition is not met.
+             Assertions can be disabled by defining `NDEBUG` at compile time.
+             See https://en.cppreference.com/w/cpp/error/assert for more
+             information.
+
+    @throw invalid_iterator.201 if iterators @a first and @a last are not
+    compatible (i.e., do not belong to the same JSON value). In this case,
+    the range `[first, last)` is undefined.
+    @throw invalid_iterator.204 if iterators @a first and @a last belong to a
+    primitive type (number, boolean, or string), but @a first does not point
+    to the first element any more. In this case, the range `[first, last)` is
+    undefined. See example code below.
+    @throw invalid_iterator.206 if iterators @a first and @a last belong to a
+    null value. In this case, the range `[first, last)` is undefined.
+
+    @complexity Linear in distance between @a first and @a last.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @liveexample{The example below shows several ways to create JSON values by
+    specifying a subrange with iterators.,basic_json__InputIt_InputIt}
+
+    @since version 1.0.0
+    */
+    template < class InputIT, typename std::enable_if <
+                   std::is_same<InputIT, typename basic_json_t::iterator>::value ||
+                   std::is_same<InputIT, typename basic_json_t::const_iterator>::value, int >::type = 0 >
+    basic_json(InputIT first, InputIT last)
+    {
+        JSON_ASSERT(first.m_object != nullptr);
+        JSON_ASSERT(last.m_object != nullptr);
+
+        // make sure iterator fits the current value
+        if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(201, "iterators are not compatible", basic_json()));
+        }
+
+        // copy type from first iterator
+        m_type = first.m_object->m_type;
+
+        // check if iterator range is complete for primitive values
+        switch (m_type)
+        {
+            case value_t::boolean:
+            case value_t::number_float:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::string:
+            {
+                if (JSON_HEDLEY_UNLIKELY(!first.m_it.primitive_iterator.is_begin()
+                                         || !last.m_it.primitive_iterator.is_end()))
+                {
+                    JSON_THROW(invalid_iterator::create(204, "iterators out of range", *first.m_object));
+                }
+                break;
+            }
+
+            case value_t::null:
+            case value_t::object:
+            case value_t::array:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+                break;
+        }
+
+        switch (m_type)
+        {
+            case value_t::number_integer:
+            {
+                m_value.number_integer = first.m_object->m_value.number_integer;
+                break;
+            }
+
+            case value_t::number_unsigned:
+            {
+                m_value.number_unsigned = first.m_object->m_value.number_unsigned;
+                break;
+            }
+
+            case value_t::number_float:
+            {
+                m_value.number_float = first.m_object->m_value.number_float;
+                break;
+            }
+
+            case value_t::boolean:
+            {
+                m_value.boolean = first.m_object->m_value.boolean;
+                break;
+            }
+
+            case value_t::string:
+            {
+                m_value = *first.m_object->m_value.string;
+                break;
+            }
+
+            case value_t::object:
+            {
+                m_value.object = create<object_t>(first.m_it.object_iterator,
+                                                  last.m_it.object_iterator);
+                break;
+            }
+
+            case value_t::array:
+            {
+                m_value.array = create<array_t>(first.m_it.array_iterator,
+                                                last.m_it.array_iterator);
+                break;
+            }
+
+            case value_t::binary:
+            {
+                m_value = *first.m_object->m_value.binary;
+                break;
+            }
+
+            case value_t::null:
+            case value_t::discarded:
+            default:
+                JSON_THROW(invalid_iterator::create(206, "cannot construct with iterators from " + std::string(first.m_object->type_name()), *first.m_object));
+        }
+
+        set_parents();
+        assert_invariant();
+    }
+
+
+    ///////////////////////////////////////
+    // other constructors and destructor //
+    ///////////////////////////////////////
+
+    template<typename JsonRef,
+             detail::enable_if_t<detail::conjunction<detail::is_json_ref<JsonRef>,
+                                 std::is_same<typename JsonRef::value_type, basic_json>>::value, int> = 0 >
+    basic_json(const JsonRef& ref) : basic_json(ref.moved_or_copied()) {}
+
+    /*!
+    @brief copy constructor
+
+    Creates a copy of a given JSON value.
+
+    @param[in] other  the JSON value to copy
+
+    @post `*this == other`
+
+    @complexity Linear in the size of @a other.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes to any JSON value.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is linear.
+    - As postcondition, it holds: `other == basic_json(other)`.
+
+    @liveexample{The following code shows an example for the copy
+    constructor.,basic_json__basic_json}
+
+    @since version 1.0.0
+    */
+    basic_json(const basic_json& other)
+        : m_type(other.m_type)
+    {
+        // check of passed value is valid
+        other.assert_invariant();
+
+        switch (m_type)
+        {
+            case value_t::object:
+            {
+                m_value = *other.m_value.object;
+                break;
+            }
+
+            case value_t::array:
+            {
+                m_value = *other.m_value.array;
+                break;
+            }
+
+            case value_t::string:
+            {
+                m_value = *other.m_value.string;
+                break;
+            }
+
+            case value_t::boolean:
+            {
+                m_value = other.m_value.boolean;
+                break;
+            }
+
+            case value_t::number_integer:
+            {
+                m_value = other.m_value.number_integer;
+                break;
+            }
+
+            case value_t::number_unsigned:
+            {
+                m_value = other.m_value.number_unsigned;
+                break;
+            }
+
+            case value_t::number_float:
+            {
+                m_value = other.m_value.number_float;
+                break;
+            }
+
+            case value_t::binary:
+            {
+                m_value = *other.m_value.binary;
+                break;
+            }
+
+            case value_t::null:
+            case value_t::discarded:
+            default:
+                break;
+        }
+
+        set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief move constructor
+
+    Move constructor. Constructs a JSON value with the contents of the given
+    value @a other using move semantics. It "steals" the resources from @a
+    other and leaves it as JSON null value.
+
+    @param[in,out] other  value to move to this object
+
+    @post `*this` has the same value as @a other before the call.
+    @post @a other is a JSON null value.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this constructor never throws
+    exceptions.
+
+    @requirement This function helps `basic_json` satisfying the
+    [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible)
+    requirements.
+
+    @liveexample{The code below shows the move constructor explicitly called
+    via std::move.,basic_json__moveconstructor}
+
+    @since version 1.0.0
+    */
+    basic_json(basic_json&& other) noexcept
+        : m_type(std::move(other.m_type)),
+          m_value(std::move(other.m_value))
+    {
+        // check that passed value is valid
+        other.assert_invariant(false);
+
+        // invalidate payload
+        other.m_type = value_t::null;
+        other.m_value = {};
+
+        set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief copy assignment
+
+    Copy assignment operator. Copies a JSON value via the "copy and swap"
+    strategy: It is expressed in terms of the copy constructor, destructor,
+    and the `swap()` member function.
+
+    @param[in] other  value to copy from
+
+    @complexity Linear.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is linear.
+
+    @liveexample{The code below shows and example for the copy assignment. It
+    creates a copy of value `a` which is then swapped with `b`. Finally\, the
+    copy of `a` (which is the null value after the swap) is
+    destroyed.,basic_json__copyassignment}
+
+    @since version 1.0.0
+    */
+    basic_json& operator=(basic_json other) noexcept (
+        std::is_nothrow_move_constructible<value_t>::value&&
+        std::is_nothrow_move_assignable<value_t>::value&&
+        std::is_nothrow_move_constructible<json_value>::value&&
+        std::is_nothrow_move_assignable<json_value>::value
+    )
+    {
+        // check that passed value is valid
+        other.assert_invariant();
+
+        using std::swap;
+        swap(m_type, other.m_type);
+        swap(m_value, other.m_value);
+
+        set_parents();
+        assert_invariant();
+        return *this;
+    }
+
+    /*!
+    @brief destructor
+
+    Destroys the JSON value and frees all allocated memory.
+
+    @complexity Linear.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is linear.
+    - All stored elements are destroyed and all memory is freed.
+
+    @since version 1.0.0
+    */
+    ~basic_json() noexcept
+    {
+        assert_invariant(false);
+        m_value.destroy(m_type);
+    }
+
+    /// @}
+
+  public:
+    ///////////////////////
+    // object inspection //
+    ///////////////////////
+
+    /// @name object inspection
+    /// Functions to inspect the type of a JSON value.
+    /// @{
+
+    /*!
+    @brief serialization
+
+    Serialization function for JSON values. The function tries to mimic
+    Python's `json.dumps()` function, and currently supports its @a indent
+    and @a ensure_ascii parameters.
+
+    @param[in] indent If indent is nonnegative, then array elements and object
+    members will be pretty-printed with that indent level. An indent level of
+    `0` will only insert newlines. `-1` (the default) selects the most compact
+    representation.
+    @param[in] indent_char The character to use for indentation if @a indent is
+    greater than `0`. The default is ` ` (space).
+    @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters
+    in the output are escaped with `\uXXXX` sequences, and the result consists
+    of ASCII characters only.
+    @param[in] error_handler  how to react on decoding errors; there are three
+    possible values: `strict` (throws and exception in case a decoding error
+    occurs; default), `replace` (replace invalid UTF-8 sequences with U+FFFD),
+    and `ignore` (ignore invalid UTF-8 sequences during serialization; all
+    bytes are copied to the output unchanged).
+
+    @return string containing the serialization of the JSON value
+
+    @throw type_error.316 if a string stored inside the JSON value is not
+                          UTF-8 encoded and @a error_handler is set to strict
+
+    @note Binary values are serialized as object containing two keys:
+      - "bytes": an array of bytes as integers
+      - "subtype": the subtype as integer or "null" if the binary has no subtype
+
+    @complexity Linear.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @liveexample{The following example shows the effect of different @a indent\,
+    @a indent_char\, and @a ensure_ascii parameters to the result of the
+    serialization.,dump}
+
+    @see https://docs.python.org/2/library/json.html#json.dump
+
+    @since version 1.0.0; indentation character @a indent_char, option
+           @a ensure_ascii and exceptions added in version 3.0.0; error
+           handlers added in version 3.4.0; serialization of binary values added
+           in version 3.8.0.
+    */
+    string_t dump(const int indent = -1,
+                  const char indent_char = ' ',
+                  const bool ensure_ascii = false,
+                  const error_handler_t error_handler = error_handler_t::strict) const
+    {
+        string_t result;
+        serializer s(detail::output_adapter<char, string_t>(result), indent_char, error_handler);
+
+        if (indent >= 0)
+        {
+            s.dump(*this, true, ensure_ascii, static_cast<unsigned int>(indent));
+        }
+        else
+        {
+            s.dump(*this, false, ensure_ascii, 0);
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief return the type of the JSON value (explicit)
+
+    Return the type of the JSON value as a value from the @ref value_t
+    enumeration.
+
+    @return the type of the JSON value
+            Value type                | return value
+            ------------------------- | -------------------------
+            null                      | value_t::null
+            boolean                   | value_t::boolean
+            string                    | value_t::string
+            number (integer)          | value_t::number_integer
+            number (unsigned integer) | value_t::number_unsigned
+            number (floating-point)   | value_t::number_float
+            object                    | value_t::object
+            array                     | value_t::array
+            binary                    | value_t::binary
+            discarded                 | value_t::discarded
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `type()` for all JSON
+    types.,type}
+
+    @sa see @ref operator value_t() -- return the type of the JSON value (implicit)
+    @sa see @ref type_name() -- return the type as string
+
+    @since version 1.0.0
+    */
+    constexpr value_t type() const noexcept
+    {
+        return m_type;
+    }
+
+    /*!
+    @brief return whether type is primitive
+
+    This function returns true if and only if the JSON type is primitive
+    (string, number, boolean, or null).
+
+    @return `true` if type is primitive (string, number, boolean, or null),
+    `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_primitive()` for all JSON
+    types.,is_primitive}
+
+    @sa see @ref is_structured() -- returns whether JSON value is structured
+    @sa see @ref is_null() -- returns whether JSON value is `null`
+    @sa see @ref is_string() -- returns whether JSON value is a string
+    @sa see @ref is_boolean() -- returns whether JSON value is a boolean
+    @sa see @ref is_number() -- returns whether JSON value is a number
+    @sa see @ref is_binary() -- returns whether JSON value is a binary array
+
+    @since version 1.0.0
+    */
+    constexpr bool is_primitive() const noexcept
+    {
+        return is_null() || is_string() || is_boolean() || is_number() || is_binary();
+    }
+
+    /*!
+    @brief return whether type is structured
+
+    This function returns true if and only if the JSON type is structured
+    (array or object).
+
+    @return `true` if type is structured (array or object), `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_structured()` for all JSON
+    types.,is_structured}
+
+    @sa see @ref is_primitive() -- returns whether value is primitive
+    @sa see @ref is_array() -- returns whether value is an array
+    @sa see @ref is_object() -- returns whether value is an object
+
+    @since version 1.0.0
+    */
+    constexpr bool is_structured() const noexcept
+    {
+        return is_array() || is_object();
+    }
+
+    /*!
+    @brief return whether value is null
+
+    This function returns true if and only if the JSON value is null.
+
+    @return `true` if type is null, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_null()` for all JSON
+    types.,is_null}
+
+    @since version 1.0.0
+    */
+    constexpr bool is_null() const noexcept
+    {
+        return m_type == value_t::null;
+    }
+
+    /*!
+    @brief return whether value is a boolean
+
+    This function returns true if and only if the JSON value is a boolean.
+
+    @return `true` if type is boolean, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_boolean()` for all JSON
+    types.,is_boolean}
+
+    @since version 1.0.0
+    */
+    constexpr bool is_boolean() const noexcept
+    {
+        return m_type == value_t::boolean;
+    }
+
+    /*!
+    @brief return whether value is a number
+
+    This function returns true if and only if the JSON value is a number. This
+    includes both integer (signed and unsigned) and floating-point values.
+
+    @return `true` if type is number (regardless whether integer, unsigned
+    integer or floating-type), `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_number()` for all JSON
+    types.,is_number}
+
+    @sa see @ref is_number_integer() -- check if value is an integer or unsigned
+    integer number
+    @sa see @ref is_number_unsigned() -- check if value is an unsigned integer
+    number
+    @sa see @ref is_number_float() -- check if value is a floating-point number
+
+    @since version 1.0.0
+    */
+    constexpr bool is_number() const noexcept
+    {
+        return is_number_integer() || is_number_float();
+    }
+
+    /*!
+    @brief return whether value is an integer number
+
+    This function returns true if and only if the JSON value is a signed or
+    unsigned integer number. This excludes floating-point values.
+
+    @return `true` if type is an integer or unsigned integer number, `false`
+    otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_number_integer()` for all
+    JSON types.,is_number_integer}
+
+    @sa see @ref is_number() -- check if value is a number
+    @sa see @ref is_number_unsigned() -- check if value is an unsigned integer
+    number
+    @sa see @ref is_number_float() -- check if value is a floating-point number
+
+    @since version 1.0.0
+    */
+    constexpr bool is_number_integer() const noexcept
+    {
+        return m_type == value_t::number_integer || m_type == value_t::number_unsigned;
+    }
+
+    /*!
+    @brief return whether value is an unsigned integer number
+
+    This function returns true if and only if the JSON value is an unsigned
+    integer number. This excludes floating-point and signed integer values.
+
+    @return `true` if type is an unsigned integer number, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_number_unsigned()` for all
+    JSON types.,is_number_unsigned}
+
+    @sa see @ref is_number() -- check if value is a number
+    @sa see @ref is_number_integer() -- check if value is an integer or unsigned
+    integer number
+    @sa see @ref is_number_float() -- check if value is a floating-point number
+
+    @since version 2.0.0
+    */
+    constexpr bool is_number_unsigned() const noexcept
+    {
+        return m_type == value_t::number_unsigned;
+    }
+
+    /*!
+    @brief return whether value is a floating-point number
+
+    This function returns true if and only if the JSON value is a
+    floating-point number. This excludes signed and unsigned integer values.
+
+    @return `true` if type is a floating-point number, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_number_float()` for all
+    JSON types.,is_number_float}
+
+    @sa see @ref is_number() -- check if value is number
+    @sa see @ref is_number_integer() -- check if value is an integer number
+    @sa see @ref is_number_unsigned() -- check if value is an unsigned integer
+    number
+
+    @since version 1.0.0
+    */
+    constexpr bool is_number_float() const noexcept
+    {
+        return m_type == value_t::number_float;
+    }
+
+    /*!
+    @brief return whether value is an object
+
+    This function returns true if and only if the JSON value is an object.
+
+    @return `true` if type is object, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_object()` for all JSON
+    types.,is_object}
+
+    @since version 1.0.0
+    */
+    constexpr bool is_object() const noexcept
+    {
+        return m_type == value_t::object;
+    }
+
+    /*!
+    @brief return whether value is an array
+
+    This function returns true if and only if the JSON value is an array.
+
+    @return `true` if type is array, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_array()` for all JSON
+    types.,is_array}
+
+    @since version 1.0.0
+    */
+    constexpr bool is_array() const noexcept
+    {
+        return m_type == value_t::array;
+    }
+
+    /*!
+    @brief return whether value is a string
+
+    This function returns true if and only if the JSON value is a string.
+
+    @return `true` if type is string, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_string()` for all JSON
+    types.,is_string}
+
+    @since version 1.0.0
+    */
+    constexpr bool is_string() const noexcept
+    {
+        return m_type == value_t::string;
+    }
+
+    /*!
+    @brief return whether value is a binary array
+
+    This function returns true if and only if the JSON value is a binary array.
+
+    @return `true` if type is binary array, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_binary()` for all JSON
+    types.,is_binary}
+
+    @since version 3.8.0
+    */
+    constexpr bool is_binary() const noexcept
+    {
+        return m_type == value_t::binary;
+    }
+
+    /*!
+    @brief return whether value is discarded
+
+    This function returns true if and only if the JSON value was discarded
+    during parsing with a callback function (see @ref parser_callback_t).
+
+    @note This function will always be `false` for JSON values after parsing.
+    That is, discarded values can only occur during parsing, but will be
+    removed when inside a structured value or replaced by null in other cases.
+
+    @return `true` if type is discarded, `false` otherwise.
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies `is_discarded()` for all JSON
+    types.,is_discarded}
+
+    @since version 1.0.0
+    */
+    constexpr bool is_discarded() const noexcept
+    {
+        return m_type == value_t::discarded;
+    }
+
+    /*!
+    @brief return the type of the JSON value (implicit)
+
+    Implicitly return the type of the JSON value as a value from the @ref
+    value_t enumeration.
+
+    @return the type of the JSON value
+
+    @complexity Constant.
+
+    @exceptionsafety No-throw guarantee: this member function never throws
+    exceptions.
+
+    @liveexample{The following code exemplifies the @ref value_t operator for
+    all JSON types.,operator__value_t}
+
+    @sa see @ref type() -- return the type of the JSON value (explicit)
+    @sa see @ref type_name() -- return the type as string
+
+    @since version 1.0.0
+    */
+    constexpr operator value_t() const noexcept
+    {
+        return m_type;
+    }
+
+    /// @}
+
+  private:
+    //////////////////
+    // value access //
+    //////////////////
+
+    /// get a boolean (explicit)
+    boolean_t get_impl(boolean_t* /*unused*/) const
+    {
+        if (JSON_HEDLEY_LIKELY(is_boolean()))
+        {
+            return m_value.boolean;
+        }
+
+        JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(type_name()), *this));
+    }
+
+    /// get a pointer to the value (object)
+    object_t* get_impl_ptr(object_t* /*unused*/) noexcept
+    {
+        return is_object() ? m_value.object : nullptr;
+    }
+
+    /// get a pointer to the value (object)
+    constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept
+    {
+        return is_object() ? m_value.object : nullptr;
+    }
+
+    /// get a pointer to the value (array)
+    array_t* get_impl_ptr(array_t* /*unused*/) noexcept
+    {
+        return is_array() ? m_value.array : nullptr;
+    }
+
+    /// get a pointer to the value (array)
+    constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept
+    {
+        return is_array() ? m_value.array : nullptr;
+    }
+
+    /// get a pointer to the value (string)
+    string_t* get_impl_ptr(string_t* /*unused*/) noexcept
+    {
+        return is_string() ? m_value.string : nullptr;
+    }
+
+    /// get a pointer to the value (string)
+    constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept
+    {
+        return is_string() ? m_value.string : nullptr;
+    }
+
+    /// get a pointer to the value (boolean)
+    boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept
+    {
+        return is_boolean() ? &m_value.boolean : nullptr;
+    }
+
+    /// get a pointer to the value (boolean)
+    constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept
+    {
+        return is_boolean() ? &m_value.boolean : nullptr;
+    }
+
+    /// get a pointer to the value (integer number)
+    number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept
+    {
+        return is_number_integer() ? &m_value.number_integer : nullptr;
+    }
+
+    /// get a pointer to the value (integer number)
+    constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept
+    {
+        return is_number_integer() ? &m_value.number_integer : nullptr;
+    }
+
+    /// get a pointer to the value (unsigned number)
+    number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept
+    {
+        return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
+    }
+
+    /// get a pointer to the value (unsigned number)
+    constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept
+    {
+        return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
+    }
+
+    /// get a pointer to the value (floating-point number)
+    number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept
+    {
+        return is_number_float() ? &m_value.number_float : nullptr;
+    }
+
+    /// get a pointer to the value (floating-point number)
+    constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept
+    {
+        return is_number_float() ? &m_value.number_float : nullptr;
+    }
+
+    /// get a pointer to the value (binary)
+    binary_t* get_impl_ptr(binary_t* /*unused*/) noexcept
+    {
+        return is_binary() ? m_value.binary : nullptr;
+    }
+
+    /// get a pointer to the value (binary)
+    constexpr const binary_t* get_impl_ptr(const binary_t* /*unused*/) const noexcept
+    {
+        return is_binary() ? m_value.binary : nullptr;
+    }
+
+    /*!
+    @brief helper function to implement get_ref()
+
+    This function helps to implement get_ref() without code duplication for
+    const and non-const overloads
+
+    @tparam ThisType will be deduced as `basic_json` or `const basic_json`
+
+    @throw type_error.303 if ReferenceType does not match underlying value
+    type of the current JSON
+    */
+    template<typename ReferenceType, typename ThisType>
+    static ReferenceType get_ref_impl(ThisType& obj)
+    {
+        // delegate the call to get_ptr<>()
+        auto* ptr = obj.template get_ptr<typename std::add_pointer<ReferenceType>::type>();
+
+        if (JSON_HEDLEY_LIKELY(ptr != nullptr))
+        {
+            return *ptr;
+        }
+
+        JSON_THROW(type_error::create(303, "incompatible ReferenceType for get_ref, actual type is " + std::string(obj.type_name()), obj));
+    }
+
+  public:
+    /// @name value access
+    /// Direct access to the stored value of a JSON value.
+    /// @{
+
+    /*!
+    @brief get a pointer value (implicit)
+
+    Implicit pointer access to the internally stored JSON value. No copies are
+    made.
+
+    @warning Writing data to the pointee of the result yields an undefined
+    state.
+
+    @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref
+    object_t, @ref string_t, @ref boolean_t, @ref number_integer_t,
+    @ref number_unsigned_t, or @ref number_float_t. Enforced by a static
+    assertion.
+
+    @return pointer to the internally stored JSON value if the requested
+    pointer type @a PointerType fits to the JSON value; `nullptr` otherwise
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how pointers to internal values of a
+    JSON value can be requested. Note that no type conversions are made and a
+    `nullptr` is returned if the value and the requested pointer type does not
+    match.,get_ptr}
+
+    @since version 1.0.0
+    */
+    template<typename PointerType, typename std::enable_if<
+                 std::is_pointer<PointerType>::value, int>::type = 0>
+    auto get_ptr() noexcept -> decltype(std::declval<basic_json_t&>().get_impl_ptr(std::declval<PointerType>()))
+    {
+        // delegate the call to get_impl_ptr<>()
+        return get_impl_ptr(static_cast<PointerType>(nullptr));
+    }
+
+    /*!
+    @brief get a pointer value (implicit)
+    @copydoc get_ptr()
+    */
+    template < typename PointerType, typename std::enable_if <
+                   std::is_pointer<PointerType>::value&&
+                   std::is_const<typename std::remove_pointer<PointerType>::type>::value, int >::type = 0 >
+    constexpr auto get_ptr() const noexcept -> decltype(std::declval<const basic_json_t&>().get_impl_ptr(std::declval<PointerType>()))
+    {
+        // delegate the call to get_impl_ptr<>() const
+        return get_impl_ptr(static_cast<PointerType>(nullptr));
+    }
+
+  private:
+    /*!
+    @brief get a value (explicit)
+
+    Explicit type conversion between the JSON value and a compatible value
+    which is [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible)
+    and [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible).
+    The value is converted by calling the @ref json_serializer<ValueType>
+    `from_json()` method.
+
+    The function is equivalent to executing
+    @code {.cpp}
+    ValueType ret;
+    JSONSerializer<ValueType>::from_json(*this, ret);
+    return ret;
+    @endcode
+
+    This overloads is chosen if:
+    - @a ValueType is not @ref basic_json,
+    - @ref json_serializer<ValueType> has a `from_json()` method of the form
+      `void from_json(const basic_json&, ValueType&)`, and
+    - @ref json_serializer<ValueType> does not have a `from_json()` method of
+      the form `ValueType from_json(const basic_json&)`
+
+    @tparam ValueType the returned value type
+
+    @return copy of the JSON value, converted to @a ValueType
+
+    @throw what @ref json_serializer<ValueType> `from_json()` method throws
+
+    @liveexample{The example below shows several conversions from JSON values
+    to other types. There a few things to note: (1) Floating-point numbers can
+    be converted to integers\, (2) A JSON array can be converted to a standard
+    `std::vector<short>`\, (3) A JSON object can be converted to C++
+    associative containers such as `std::unordered_map<std::string\,
+    json>`.,get__ValueType_const}
+
+    @since version 2.1.0
+    */
+    template < typename ValueType,
+               detail::enable_if_t <
+                   detail::is_default_constructible<ValueType>::value&&
+                   detail::has_from_json<basic_json_t, ValueType>::value,
+                   int > = 0 >
+    ValueType get_impl(detail::priority_tag<0> /*unused*/) const noexcept(noexcept(
+                JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), std::declval<ValueType&>())))
+    {
+        auto ret = ValueType();
+        JSONSerializer<ValueType>::from_json(*this, ret);
+        return ret;
+    }
+
+    /*!
+    @brief get a value (explicit); special case
+
+    Explicit type conversion between the JSON value and a compatible value
+    which is **not** [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible)
+    and **not** [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible).
+    The value is converted by calling the @ref json_serializer<ValueType>
+    `from_json()` method.
+
+    The function is equivalent to executing
+    @code {.cpp}
+    return JSONSerializer<ValueType>::from_json(*this);
+    @endcode
+
+    This overloads is chosen if:
+    - @a ValueType is not @ref basic_json and
+    - @ref json_serializer<ValueType> has a `from_json()` method of the form
+      `ValueType from_json(const basic_json&)`
+
+    @note If @ref json_serializer<ValueType> has both overloads of
+    `from_json()`, this one is chosen.
+
+    @tparam ValueType the returned value type
+
+    @return copy of the JSON value, converted to @a ValueType
+
+    @throw what @ref json_serializer<ValueType> `from_json()` method throws
+
+    @since version 2.1.0
+    */
+    template < typename ValueType,
+               detail::enable_if_t <
+                   detail::has_non_default_from_json<basic_json_t, ValueType>::value,
+                   int > = 0 >
+    ValueType get_impl(detail::priority_tag<1> /*unused*/) const noexcept(noexcept(
+                JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>())))
+    {
+        return JSONSerializer<ValueType>::from_json(*this);
+    }
+
+    /*!
+    @brief get special-case overload
+
+    This overloads converts the current @ref basic_json in a different
+    @ref basic_json type
+
+    @tparam BasicJsonType == @ref basic_json
+
+    @return a copy of *this, converted into @a BasicJsonType
+
+    @complexity Depending on the implementation of the called `from_json()`
+                method.
+
+    @since version 3.2.0
+    */
+    template < typename BasicJsonType,
+               detail::enable_if_t <
+                   detail::is_basic_json<BasicJsonType>::value,
+                   int > = 0 >
+    BasicJsonType get_impl(detail::priority_tag<2> /*unused*/) const
+    {
+        return *this;
+    }
+
+    /*!
+    @brief get special-case overload
+
+    This overloads avoids a lot of template boilerplate, it can be seen as the
+    identity method
+
+    @tparam BasicJsonType == @ref basic_json
+
+    @return a copy of *this
+
+    @complexity Constant.
+
+    @since version 2.1.0
+    */
+    template<typename BasicJsonType,
+             detail::enable_if_t<
+                 std::is_same<BasicJsonType, basic_json_t>::value,
+                 int> = 0>
+    basic_json get_impl(detail::priority_tag<3> /*unused*/) const
+    {
+        return *this;
+    }
+
+    /*!
+    @brief get a pointer value (explicit)
+    @copydoc get()
+    */
+    template<typename PointerType,
+             detail::enable_if_t<
+                 std::is_pointer<PointerType>::value,
+                 int> = 0>
+    constexpr auto get_impl(detail::priority_tag<4> /*unused*/) const noexcept
+    -> decltype(std::declval<const basic_json_t&>().template get_ptr<PointerType>())
+    {
+        // delegate the call to get_ptr
+        return get_ptr<PointerType>();
+    }
+
+  public:
+    /*!
+    @brief get a (pointer) value (explicit)
+
+    Performs explicit type conversion between the JSON value and a compatible value if required.
+
+    - If the requested type is a pointer to the internally stored JSON value that pointer is returned.
+    No copies are made.
+
+    - If the requested type is the current @ref basic_json, or a different @ref basic_json convertible
+    from the current @ref basic_json.
+
+    - Otherwise the value is converted by calling the @ref json_serializer<ValueType> `from_json()`
+    method.
+
+    @tparam ValueTypeCV the provided value type
+    @tparam ValueType the returned value type
+
+    @return copy of the JSON value, converted to @tparam ValueType if necessary
+
+    @throw what @ref json_serializer<ValueType> `from_json()` method throws if conversion is required
+
+    @since version 2.1.0
+    */
+    template < typename ValueTypeCV, typename ValueType = detail::uncvref_t<ValueTypeCV>>
+#if defined(JSON_HAS_CPP_14)
+    constexpr
+#endif
+    auto get() const noexcept(
+    noexcept(std::declval<const basic_json_t&>().template get_impl<ValueType>(detail::priority_tag<4> {})))
+    -> decltype(std::declval<const basic_json_t&>().template get_impl<ValueType>(detail::priority_tag<4> {}))
+    {
+        // we cannot static_assert on ValueTypeCV being non-const, because
+        // there is support for get<const basic_json_t>(), which is why we
+        // still need the uncvref
+        static_assert(!std::is_reference<ValueTypeCV>::value,
+                      "get() cannot be used with reference types, you might want to use get_ref()");
+        return get_impl<ValueType>(detail::priority_tag<4> {});
+    }
+
+    /*!
+    @brief get a pointer value (explicit)
+
+    Explicit pointer access to the internally stored JSON value. No copies are
+    made.
+
+    @warning The pointer becomes invalid if the underlying JSON object
+    changes.
+
+    @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref
+    object_t, @ref string_t, @ref boolean_t, @ref number_integer_t,
+    @ref number_unsigned_t, or @ref number_float_t.
+
+    @return pointer to the internally stored JSON value if the requested
+    pointer type @a PointerType fits to the JSON value; `nullptr` otherwise
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how pointers to internal values of a
+    JSON value can be requested. Note that no type conversions are made and a
+    `nullptr` is returned if the value and the requested pointer type does not
+    match.,get__PointerType}
+
+    @sa see @ref get_ptr() for explicit pointer-member access
+
+    @since version 1.0.0
+    */
+    template<typename PointerType, typename std::enable_if<
+                 std::is_pointer<PointerType>::value, int>::type = 0>
+    auto get() noexcept -> decltype(std::declval<basic_json_t&>().template get_ptr<PointerType>())
+    {
+        // delegate the call to get_ptr
+        return get_ptr<PointerType>();
+    }
+
+    /*!
+    @brief get a value (explicit)
+
+    Explicit type conversion between the JSON value and a compatible value.
+    The value is filled into the input parameter by calling the @ref json_serializer<ValueType>
+    `from_json()` method.
+
+    The function is equivalent to executing
+    @code {.cpp}
+    ValueType v;
+    JSONSerializer<ValueType>::from_json(*this, v);
+    @endcode
+
+    This overloads is chosen if:
+    - @a ValueType is not @ref basic_json,
+    - @ref json_serializer<ValueType> has a `from_json()` method of the form
+      `void from_json(const basic_json&, ValueType&)`, and
+
+    @tparam ValueType the input parameter type.
+
+    @return the input parameter, allowing chaining calls.
+
+    @throw what @ref json_serializer<ValueType> `from_json()` method throws
+
+    @liveexample{The example below shows several conversions from JSON values
+    to other types. There a few things to note: (1) Floating-point numbers can
+    be converted to integers\, (2) A JSON array can be converted to a standard
+    `std::vector<short>`\, (3) A JSON object can be converted to C++
+    associative containers such as `std::unordered_map<std::string\,
+    json>`.,get_to}
+
+    @since version 3.3.0
+    */
+    template < typename ValueType,
+               detail::enable_if_t <
+                   !detail::is_basic_json<ValueType>::value&&
+                   detail::has_from_json<basic_json_t, ValueType>::value,
+                   int > = 0 >
+    ValueType & get_to(ValueType& v) const noexcept(noexcept(
+                JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), v)))
+    {
+        JSONSerializer<ValueType>::from_json(*this, v);
+        return v;
+    }
+
+    // specialization to allow to call get_to with a basic_json value
+    // see https://github.com/nlohmann/json/issues/2175
+    template<typename ValueType,
+             detail::enable_if_t <
+                 detail::is_basic_json<ValueType>::value,
+                 int> = 0>
+    ValueType & get_to(ValueType& v) const
+    {
+        v = *this;
+        return v;
+    }
+
+    template <
+        typename T, std::size_t N,
+        typename Array = T (&)[N], // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+        detail::enable_if_t <
+            detail::has_from_json<basic_json_t, Array>::value, int > = 0 >
+    Array get_to(T (&v)[N]) const // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
+    noexcept(noexcept(JSONSerializer<Array>::from_json(
+                          std::declval<const basic_json_t&>(), v)))
+    {
+        JSONSerializer<Array>::from_json(*this, v);
+        return v;
+    }
+
+    /*!
+    @brief get a reference value (implicit)
+
+    Implicit reference access to the internally stored JSON value. No copies
+    are made.
+
+    @warning Writing data to the referee of the result yields an undefined
+    state.
+
+    @tparam ReferenceType reference type; must be a reference to @ref array_t,
+    @ref object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or
+    @ref number_float_t. Enforced by static assertion.
+
+    @return reference to the internally stored JSON value if the requested
+    reference type @a ReferenceType fits to the JSON value; throws
+    type_error.303 otherwise
+
+    @throw type_error.303 in case passed type @a ReferenceType is incompatible
+    with the stored JSON value; see example below
+
+    @complexity Constant.
+
+    @liveexample{The example shows several calls to `get_ref()`.,get_ref}
+
+    @since version 1.1.0
+    */
+    template<typename ReferenceType, typename std::enable_if<
+                 std::is_reference<ReferenceType>::value, int>::type = 0>
+    ReferenceType get_ref()
+    {
+        // delegate call to get_ref_impl
+        return get_ref_impl<ReferenceType>(*this);
+    }
+
+    /*!
+    @brief get a reference value (implicit)
+    @copydoc get_ref()
+    */
+    template < typename ReferenceType, typename std::enable_if <
+                   std::is_reference<ReferenceType>::value&&
+                   std::is_const<typename std::remove_reference<ReferenceType>::type>::value, int >::type = 0 >
+    ReferenceType get_ref() const
+    {
+        // delegate call to get_ref_impl
+        return get_ref_impl<ReferenceType>(*this);
+    }
+
+    /*!
+    @brief get a value (implicit)
+
+    Implicit type conversion between the JSON value and a compatible value.
+    The call is realized by calling @ref get() const.
+
+    @tparam ValueType non-pointer type compatible to the JSON value, for
+    instance `int` for JSON integer numbers, `bool` for JSON booleans, or
+    `std::vector` types for JSON arrays. The character type of @ref string_t
+    as well as an initializer list of this type is excluded to avoid
+    ambiguities as these types implicitly convert to `std::string`.
+
+    @return copy of the JSON value, converted to type @a ValueType
+
+    @throw type_error.302 in case passed type @a ValueType is incompatible
+    to the JSON value type (e.g., the JSON value is of type boolean, but a
+    string is requested); see example below
+
+    @complexity Linear in the size of the JSON value.
+
+    @liveexample{The example below shows several conversions from JSON values
+    to other types. There a few things to note: (1) Floating-point numbers can
+    be converted to integers\, (2) A JSON array can be converted to a standard
+    `std::vector<short>`\, (3) A JSON object can be converted to C++
+    associative containers such as `std::unordered_map<std::string\,
+    json>`.,operator__ValueType}
+
+    @since version 1.0.0
+    */
+    template < typename ValueType, typename std::enable_if <
+                   detail::conjunction <
+                       detail::negation<std::is_pointer<ValueType>>,
+                       detail::negation<std::is_same<ValueType, detail::json_ref<basic_json>>>,
+                                        detail::negation<std::is_same<ValueType, typename string_t::value_type>>,
+                                        detail::negation<detail::is_basic_json<ValueType>>,
+                                        detail::negation<std::is_same<ValueType, std::initializer_list<typename string_t::value_type>>>,
+
+#if defined(JSON_HAS_CPP_17) && (defined(__GNUC__) || (defined(_MSC_VER) && _MSC_VER >= 1910 && _MSC_VER <= 1914))
+                                                detail::negation<std::is_same<ValueType, std::string_view>>,
+#endif
+                                                detail::is_detected_lazy<detail::get_template_function, const basic_json_t&, ValueType>
+                                                >::value, int >::type = 0 >
+                                        JSON_EXPLICIT operator ValueType() const
+    {
+        // delegate the call to get<>() const
+        return get<ValueType>();
+    }
+
+    /*!
+    @return reference to the binary value
+
+    @throw type_error.302 if the value is not binary
+
+    @sa see @ref is_binary() to check if the value is binary
+
+    @since version 3.8.0
+    */
+    binary_t& get_binary()
+    {
+        if (!is_binary())
+        {
+            JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this));
+        }
+
+        return *get_ptr<binary_t*>();
+    }
+
+    /// @copydoc get_binary()
+    const binary_t& get_binary() const
+    {
+        if (!is_binary())
+        {
+            JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this));
+        }
+
+        return *get_ptr<const binary_t*>();
+    }
+
+    /// @}
+
+
+    ////////////////////
+    // element access //
+    ////////////////////
+
+    /// @name element access
+    /// Access to the JSON value.
+    /// @{
+
+    /*!
+    @brief access specified array element with bounds checking
+
+    Returns a reference to the element at specified location @a idx, with
+    bounds checking.
+
+    @param[in] idx  index of the element to access
+
+    @return reference to the element at index @a idx
+
+    @throw type_error.304 if the JSON value is not an array; in this case,
+    calling `at` with an index makes no sense. See example below.
+    @throw out_of_range.401 if the index @a idx is out of range of the array;
+    that is, `idx >= size()`. See example below.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Constant.
+
+    @since version 1.0.0
+
+    @liveexample{The example below shows how array elements can be read and
+    written using `at()`. It also demonstrates the different exceptions that
+    can be thrown.,at__size_type}
+    */
+    reference at(size_type idx)
+    {
+        // at only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            JSON_TRY
+            {
+                return set_parent(m_value.array->at(idx));
+            }
+            JSON_CATCH (std::out_of_range&)
+            {
+                // create better exception explanation
+                JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this));
+            }
+        }
+        else
+        {
+            JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief access specified array element with bounds checking
+
+    Returns a const reference to the element at specified location @a idx,
+    with bounds checking.
+
+    @param[in] idx  index of the element to access
+
+    @return const reference to the element at index @a idx
+
+    @throw type_error.304 if the JSON value is not an array; in this case,
+    calling `at` with an index makes no sense. See example below.
+    @throw out_of_range.401 if the index @a idx is out of range of the array;
+    that is, `idx >= size()`. See example below.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Constant.
+
+    @since version 1.0.0
+
+    @liveexample{The example below shows how array elements can be read using
+    `at()`. It also demonstrates the different exceptions that can be thrown.,
+    at__size_type_const}
+    */
+    const_reference at(size_type idx) const
+    {
+        // at only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            JSON_TRY
+            {
+                return m_value.array->at(idx);
+            }
+            JSON_CATCH (std::out_of_range&)
+            {
+                // create better exception explanation
+                JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this));
+            }
+        }
+        else
+        {
+            JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief access specified object element with bounds checking
+
+    Returns a reference to the element at with specified key @a key, with
+    bounds checking.
+
+    @param[in] key  key of the element to access
+
+    @return reference to the element at key @a key
+
+    @throw type_error.304 if the JSON value is not an object; in this case,
+    calling `at` with a key makes no sense. See example below.
+    @throw out_of_range.403 if the key @a key is is not stored in the object;
+    that is, `find(key) == end()`. See example below.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Logarithmic in the size of the container.
+
+    @sa see @ref operator[](const typename object_t::key_type&) for unchecked
+    access by reference
+    @sa see @ref value() for access by value with a default value
+
+    @since version 1.0.0
+
+    @liveexample{The example below shows how object elements can be read and
+    written using `at()`. It also demonstrates the different exceptions that
+    can be thrown.,at__object_t_key_type}
+    */
+    reference at(const typename object_t::key_type& key)
+    {
+        // at only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            JSON_TRY
+            {
+                return set_parent(m_value.object->at(key));
+            }
+            JSON_CATCH (std::out_of_range&)
+            {
+                // create better exception explanation
+                JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this));
+            }
+        }
+        else
+        {
+            JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief access specified object element with bounds checking
+
+    Returns a const reference to the element at with specified key @a key,
+    with bounds checking.
+
+    @param[in] key  key of the element to access
+
+    @return const reference to the element at key @a key
+
+    @throw type_error.304 if the JSON value is not an object; in this case,
+    calling `at` with a key makes no sense. See example below.
+    @throw out_of_range.403 if the key @a key is is not stored in the object;
+    that is, `find(key) == end()`. See example below.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Logarithmic in the size of the container.
+
+    @sa see @ref operator[](const typename object_t::key_type&) for unchecked
+    access by reference
+    @sa see @ref value() for access by value with a default value
+
+    @since version 1.0.0
+
+    @liveexample{The example below shows how object elements can be read using
+    `at()`. It also demonstrates the different exceptions that can be thrown.,
+    at__object_t_key_type_const}
+    */
+    const_reference at(const typename object_t::key_type& key) const
+    {
+        // at only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            JSON_TRY
+            {
+                return m_value.object->at(key);
+            }
+            JSON_CATCH (std::out_of_range&)
+            {
+                // create better exception explanation
+                JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this));
+            }
+        }
+        else
+        {
+            JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief access specified array element
+
+    Returns a reference to the element at specified location @a idx.
+
+    @note If @a idx is beyond the range of the array (i.e., `idx >= size()`),
+    then the array is silently filled up with `null` values to make `idx` a
+    valid reference to the last stored element.
+
+    @param[in] idx  index of the element to access
+
+    @return reference to the element at index @a idx
+
+    @throw type_error.305 if the JSON value is not an array or null; in that
+    cases, using the [] operator with an index makes no sense.
+
+    @complexity Constant if @a idx is in the range of the array. Otherwise
+    linear in `idx - size()`.
+
+    @liveexample{The example below shows how array elements can be read and
+    written using `[]` operator. Note the addition of `null`
+    values.,operatorarray__size_type}
+
+    @since version 1.0.0
+    */
+    reference operator[](size_type idx)
+    {
+        // implicitly convert null value to an empty array
+        if (is_null())
+        {
+            m_type = value_t::array;
+            m_value.array = create<array_t>();
+            assert_invariant();
+        }
+
+        // operator[] only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            // fill up array with null values if given idx is outside range
+            if (idx >= m_value.array->size())
+            {
+#if JSON_DIAGNOSTICS
+                // remember array size & capacity before resizing
+                const auto old_size = m_value.array->size();
+                const auto old_capacity = m_value.array->capacity();
+#endif
+                m_value.array->resize(idx + 1);
+
+#if JSON_DIAGNOSTICS
+                if (JSON_HEDLEY_UNLIKELY(m_value.array->capacity() != old_capacity))
+                {
+                    // capacity has changed: update all parents
+                    set_parents();
+                }
+                else
+                {
+                    // set parent for values added above
+                    set_parents(begin() + static_cast<typename iterator::difference_type>(old_size), static_cast<typename iterator::difference_type>(idx + 1 - old_size));
+                }
+#endif
+                assert_invariant();
+            }
+
+            return m_value.array->operator[](idx);
+        }
+
+        JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief access specified array element
+
+    Returns a const reference to the element at specified location @a idx.
+
+    @param[in] idx  index of the element to access
+
+    @return const reference to the element at index @a idx
+
+    @throw type_error.305 if the JSON value is not an array; in that case,
+    using the [] operator with an index makes no sense.
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how array elements can be read using
+    the `[]` operator.,operatorarray__size_type_const}
+
+    @since version 1.0.0
+    */
+    const_reference operator[](size_type idx) const
+    {
+        // const operator[] only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            return m_value.array->operator[](idx);
+        }
+
+        JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief access specified object element
+
+    Returns a reference to the element at with specified key @a key.
+
+    @note If @a key is not found in the object, then it is silently added to
+    the object and filled with a `null` value to make `key` a valid reference.
+    In case the value was `null` before, it is converted to an object.
+
+    @param[in] key  key of the element to access
+
+    @return reference to the element at key @a key
+
+    @throw type_error.305 if the JSON value is not an object or null; in that
+    cases, using the [] operator with a key makes no sense.
+
+    @complexity Logarithmic in the size of the container.
+
+    @liveexample{The example below shows how object elements can be read and
+    written using the `[]` operator.,operatorarray__key_type}
+
+    @sa see @ref at(const typename object_t::key_type&) for access by reference
+    with range checking
+    @sa see @ref value() for access by value with a default value
+
+    @since version 1.0.0
+    */
+    reference operator[](const typename object_t::key_type& key)
+    {
+        // implicitly convert null value to an empty object
+        if (is_null())
+        {
+            m_type = value_t::object;
+            m_value.object = create<object_t>();
+            assert_invariant();
+        }
+
+        // operator[] only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            return set_parent(m_value.object->operator[](key));
+        }
+
+        JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief read-only access specified object element
+
+    Returns a const reference to the element at with specified key @a key. No
+    bounds checking is performed.
+
+    @warning If the element with key @a key does not exist, the behavior is
+    undefined.
+
+    @param[in] key  key of the element to access
+
+    @return const reference to the element at key @a key
+
+    @pre The element with key @a key must exist. **This precondition is
+         enforced with an assertion.**
+
+    @throw type_error.305 if the JSON value is not an object; in that case,
+    using the [] operator with a key makes no sense.
+
+    @complexity Logarithmic in the size of the container.
+
+    @liveexample{The example below shows how object elements can be read using
+    the `[]` operator.,operatorarray__key_type_const}
+
+    @sa see @ref at(const typename object_t::key_type&) for access by reference
+    with range checking
+    @sa see @ref value() for access by value with a default value
+
+    @since version 1.0.0
+    */
+    const_reference operator[](const typename object_t::key_type& key) const
+    {
+        // const operator[] only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            JSON_ASSERT(m_value.object->find(key) != m_value.object->end());
+            return m_value.object->find(key)->second;
+        }
+
+        JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief access specified object element
+
+    Returns a reference to the element at with specified key @a key.
+
+    @note If @a key is not found in the object, then it is silently added to
+    the object and filled with a `null` value to make `key` a valid reference.
+    In case the value was `null` before, it is converted to an object.
+
+    @param[in] key  key of the element to access
+
+    @return reference to the element at key @a key
+
+    @throw type_error.305 if the JSON value is not an object or null; in that
+    cases, using the [] operator with a key makes no sense.
+
+    @complexity Logarithmic in the size of the container.
+
+    @liveexample{The example below shows how object elements can be read and
+    written using the `[]` operator.,operatorarray__key_type}
+
+    @sa see @ref at(const typename object_t::key_type&) for access by reference
+    with range checking
+    @sa see @ref value() for access by value with a default value
+
+    @since version 1.1.0
+    */
+    template<typename T>
+    JSON_HEDLEY_NON_NULL(2)
+    reference operator[](T* key)
+    {
+        // implicitly convert null to object
+        if (is_null())
+        {
+            m_type = value_t::object;
+            m_value = value_t::object;
+            assert_invariant();
+        }
+
+        // at only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            return set_parent(m_value.object->operator[](key));
+        }
+
+        JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief read-only access specified object element
+
+    Returns a const reference to the element at with specified key @a key. No
+    bounds checking is performed.
+
+    @warning If the element with key @a key does not exist, the behavior is
+    undefined.
+
+    @param[in] key  key of the element to access
+
+    @return const reference to the element at key @a key
+
+    @pre The element with key @a key must exist. **This precondition is
+         enforced with an assertion.**
+
+    @throw type_error.305 if the JSON value is not an object; in that case,
+    using the [] operator with a key makes no sense.
+
+    @complexity Logarithmic in the size of the container.
+
+    @liveexample{The example below shows how object elements can be read using
+    the `[]` operator.,operatorarray__key_type_const}
+
+    @sa see @ref at(const typename object_t::key_type&) for access by reference
+    with range checking
+    @sa see @ref value() for access by value with a default value
+
+    @since version 1.1.0
+    */
+    template<typename T>
+    JSON_HEDLEY_NON_NULL(2)
+    const_reference operator[](T* key) const
+    {
+        // at only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            JSON_ASSERT(m_value.object->find(key) != m_value.object->end());
+            return m_value.object->find(key)->second;
+        }
+
+        JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief access specified object element with default value
+
+    Returns either a copy of an object's element at the specified key @a key
+    or a given default value if no element with key @a key exists.
+
+    The function is basically equivalent to executing
+    @code {.cpp}
+    try {
+        return at(key);
+    } catch(out_of_range) {
+        return default_value;
+    }
+    @endcode
+
+    @note Unlike @ref at(const typename object_t::key_type&), this function
+    does not throw if the given key @a key was not found.
+
+    @note Unlike @ref operator[](const typename object_t::key_type& key), this
+    function does not implicitly add an element to the position defined by @a
+    key. This function is furthermore also applicable to const objects.
+
+    @param[in] key  key of the element to access
+    @param[in] default_value  the value to return if @a key is not found
+
+    @tparam ValueType type compatible to JSON values, for instance `int` for
+    JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for
+    JSON arrays. Note the type of the expected value at @a key and the default
+    value @a default_value must be compatible.
+
+    @return copy of the element at key @a key or @a default_value if @a key
+    is not found
+
+    @throw type_error.302 if @a default_value does not match the type of the
+    value at @a key
+    @throw type_error.306 if the JSON value is not an object; in that case,
+    using `value()` with a key makes no sense.
+
+    @complexity Logarithmic in the size of the container.
+
+    @liveexample{The example below shows how object elements can be queried
+    with a default value.,basic_json__value}
+
+    @sa see @ref at(const typename object_t::key_type&) for access by reference
+    with range checking
+    @sa see @ref operator[](const typename object_t::key_type&) for unchecked
+    access by reference
+
+    @since version 1.0.0
+    */
+    // using std::is_convertible in a std::enable_if will fail when using explicit conversions
+    template < class ValueType, typename std::enable_if <
+                   detail::is_getable<basic_json_t, ValueType>::value
+                   && !std::is_same<value_t, ValueType>::value, int >::type = 0 >
+    ValueType value(const typename object_t::key_type& key, const ValueType& default_value) const
+    {
+        // at only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            // if key is found, return value and given default value otherwise
+            const auto it = find(key);
+            if (it != end())
+            {
+                return it->template get<ValueType>();
+            }
+
+            return default_value;
+        }
+
+        JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief overload for a default value of type const char*
+    @copydoc basic_json::value(const typename object_t::key_type&, const ValueType&) const
+    */
+    string_t value(const typename object_t::key_type& key, const char* default_value) const
+    {
+        return value(key, string_t(default_value));
+    }
+
+    /*!
+    @brief access specified object element via JSON Pointer with default value
+
+    Returns either a copy of an object's element at the specified key @a key
+    or a given default value if no element with key @a key exists.
+
+    The function is basically equivalent to executing
+    @code {.cpp}
+    try {
+        return at(ptr);
+    } catch(out_of_range) {
+        return default_value;
+    }
+    @endcode
+
+    @note Unlike @ref at(const json_pointer&), this function does not throw
+    if the given key @a key was not found.
+
+    @param[in] ptr  a JSON pointer to the element to access
+    @param[in] default_value  the value to return if @a ptr found no value
+
+    @tparam ValueType type compatible to JSON values, for instance `int` for
+    JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for
+    JSON arrays. Note the type of the expected value at @a key and the default
+    value @a default_value must be compatible.
+
+    @return copy of the element at key @a key or @a default_value if @a key
+    is not found
+
+    @throw type_error.302 if @a default_value does not match the type of the
+    value at @a ptr
+    @throw type_error.306 if the JSON value is not an object; in that case,
+    using `value()` with a key makes no sense.
+
+    @complexity Logarithmic in the size of the container.
+
+    @liveexample{The example below shows how object elements can be queried
+    with a default value.,basic_json__value_ptr}
+
+    @sa see @ref operator[](const json_pointer&) for unchecked access by reference
+
+    @since version 2.0.2
+    */
+    template<class ValueType, typename std::enable_if<
+                 detail::is_getable<basic_json_t, ValueType>::value, int>::type = 0>
+    ValueType value(const json_pointer& ptr, const ValueType& default_value) const
+    {
+        // at only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            // if pointer resolves a value, return it or use default value
+            JSON_TRY
+            {
+                return ptr.get_checked(this).template get<ValueType>();
+            }
+            JSON_INTERNAL_CATCH (out_of_range&)
+            {
+                return default_value;
+            }
+        }
+
+        JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief overload for a default value of type const char*
+    @copydoc basic_json::value(const json_pointer&, ValueType) const
+    */
+    JSON_HEDLEY_NON_NULL(3)
+    string_t value(const json_pointer& ptr, const char* default_value) const
+    {
+        return value(ptr, string_t(default_value));
+    }
+
+    /*!
+    @brief access the first element
+
+    Returns a reference to the first element in the container. For a JSON
+    container `c`, the expression `c.front()` is equivalent to `*c.begin()`.
+
+    @return In case of a structured type (array or object), a reference to the
+    first element is returned. In case of number, string, boolean, or binary
+    values, a reference to the value is returned.
+
+    @complexity Constant.
+
+    @pre The JSON value must not be `null` (would throw `std::out_of_range`)
+    or an empty array or object (undefined behavior, **guarded by
+    assertions**).
+    @post The JSON value remains unchanged.
+
+    @throw invalid_iterator.214 when called on `null` value
+
+    @liveexample{The following code shows an example for `front()`.,front}
+
+    @sa see @ref back() -- access the last element
+
+    @since version 1.0.0
+    */
+    reference front()
+    {
+        return *begin();
+    }
+
+    /*!
+    @copydoc basic_json::front()
+    */
+    const_reference front() const
+    {
+        return *cbegin();
+    }
+
+    /*!
+    @brief access the last element
+
+    Returns a reference to the last element in the container. For a JSON
+    container `c`, the expression `c.back()` is equivalent to
+    @code {.cpp}
+    auto tmp = c.end();
+    --tmp;
+    return *tmp;
+    @endcode
+
+    @return In case of a structured type (array or object), a reference to the
+    last element is returned. In case of number, string, boolean, or binary
+    values, a reference to the value is returned.
+
+    @complexity Constant.
+
+    @pre The JSON value must not be `null` (would throw `std::out_of_range`)
+    or an empty array or object (undefined behavior, **guarded by
+    assertions**).
+    @post The JSON value remains unchanged.
+
+    @throw invalid_iterator.214 when called on a `null` value. See example
+    below.
+
+    @liveexample{The following code shows an example for `back()`.,back}
+
+    @sa see @ref front() -- access the first element
+
+    @since version 1.0.0
+    */
+    reference back()
+    {
+        auto tmp = end();
+        --tmp;
+        return *tmp;
+    }
+
+    /*!
+    @copydoc basic_json::back()
+    */
+    const_reference back() const
+    {
+        auto tmp = cend();
+        --tmp;
+        return *tmp;
+    }
+
+    /*!
+    @brief remove element given an iterator
+
+    Removes the element specified by iterator @a pos. The iterator @a pos must
+    be valid and dereferenceable. Thus the `end()` iterator (which is valid,
+    but is not dereferenceable) cannot be used as a value for @a pos.
+
+    If called on a primitive type other than `null`, the resulting JSON value
+    will be `null`.
+
+    @param[in] pos iterator to the element to remove
+    @return Iterator following the last removed element. If the iterator @a
+    pos refers to the last element, the `end()` iterator is returned.
+
+    @tparam IteratorType an @ref iterator or @ref const_iterator
+
+    @post Invalidates iterators and references at or after the point of the
+    erase, including the `end()` iterator.
+
+    @throw type_error.307 if called on a `null` value; example: `"cannot use
+    erase() with null"`
+    @throw invalid_iterator.202 if called on an iterator which does not belong
+    to the current JSON value; example: `"iterator does not fit current
+    value"`
+    @throw invalid_iterator.205 if called on a primitive type with invalid
+    iterator (i.e., any iterator which is not `begin()`); example: `"iterator
+    out of range"`
+
+    @complexity The complexity depends on the type:
+    - objects: amortized constant
+    - arrays: linear in distance between @a pos and the end of the container
+    - strings and binary: linear in the length of the member
+    - other types: constant
+
+    @liveexample{The example shows the result of `erase()` for different JSON
+    types.,erase__IteratorType}
+
+    @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in
+    the given range
+    @sa see @ref erase(const typename object_t::key_type&) -- removes the element
+    from an object at the given key
+    @sa see @ref erase(const size_type) -- removes the element from an array at
+    the given index
+
+    @since version 1.0.0
+    */
+    template < class IteratorType, typename std::enable_if <
+                   std::is_same<IteratorType, typename basic_json_t::iterator>::value ||
+                   std::is_same<IteratorType, typename basic_json_t::const_iterator>::value, int >::type
+               = 0 >
+    IteratorType erase(IteratorType pos)
+    {
+        // make sure iterator fits the current value
+        if (JSON_HEDLEY_UNLIKELY(this != pos.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this));
+        }
+
+        IteratorType result = end();
+
+        switch (m_type)
+        {
+            case value_t::boolean:
+            case value_t::number_float:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::string:
+            case value_t::binary:
+            {
+                if (JSON_HEDLEY_UNLIKELY(!pos.m_it.primitive_iterator.is_begin()))
+                {
+                    JSON_THROW(invalid_iterator::create(205, "iterator out of range", *this));
+                }
+
+                if (is_string())
+                {
+                    AllocatorType<string_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.string);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.string, 1);
+                    m_value.string = nullptr;
+                }
+                else if (is_binary())
+                {
+                    AllocatorType<binary_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.binary);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.binary, 1);
+                    m_value.binary = nullptr;
+                }
+
+                m_type = value_t::null;
+                assert_invariant();
+                break;
+            }
+
+            case value_t::object:
+            {
+                result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator);
+                break;
+            }
+
+            case value_t::array:
+            {
+                result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator);
+                break;
+            }
+
+            case value_t::null:
+            case value_t::discarded:
+            default:
+                JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this));
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief remove elements given an iterator range
+
+    Removes the element specified by the range `[first; last)`. The iterator
+    @a first does not need to be dereferenceable if `first == last`: erasing
+    an empty range is a no-op.
+
+    If called on a primitive type other than `null`, the resulting JSON value
+    will be `null`.
+
+    @param[in] first iterator to the beginning of the range to remove
+    @param[in] last iterator past the end of the range to remove
+    @return Iterator following the last removed element. If the iterator @a
+    second refers to the last element, the `end()` iterator is returned.
+
+    @tparam IteratorType an @ref iterator or @ref const_iterator
+
+    @post Invalidates iterators and references at or after the point of the
+    erase, including the `end()` iterator.
+
+    @throw type_error.307 if called on a `null` value; example: `"cannot use
+    erase() with null"`
+    @throw invalid_iterator.203 if called on iterators which does not belong
+    to the current JSON value; example: `"iterators do not fit current value"`
+    @throw invalid_iterator.204 if called on a primitive type with invalid
+    iterators (i.e., if `first != begin()` and `last != end()`); example:
+    `"iterators out of range"`
+
+    @complexity The complexity depends on the type:
+    - objects: `log(size()) + std::distance(first, last)`
+    - arrays: linear in the distance between @a first and @a last, plus linear
+      in the distance between @a last and end of the container
+    - strings and binary: linear in the length of the member
+    - other types: constant
+
+    @liveexample{The example shows the result of `erase()` for different JSON
+    types.,erase__IteratorType_IteratorType}
+
+    @sa see @ref erase(IteratorType) -- removes the element at a given position
+    @sa see @ref erase(const typename object_t::key_type&) -- removes the element
+    from an object at the given key
+    @sa see @ref erase(const size_type) -- removes the element from an array at
+    the given index
+
+    @since version 1.0.0
+    */
+    template < class IteratorType, typename std::enable_if <
+                   std::is_same<IteratorType, typename basic_json_t::iterator>::value ||
+                   std::is_same<IteratorType, typename basic_json_t::const_iterator>::value, int >::type
+               = 0 >
+    IteratorType erase(IteratorType first, IteratorType last)
+    {
+        // make sure iterator fits the current value
+        if (JSON_HEDLEY_UNLIKELY(this != first.m_object || this != last.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(203, "iterators do not fit current value", *this));
+        }
+
+        IteratorType result = end();
+
+        switch (m_type)
+        {
+            case value_t::boolean:
+            case value_t::number_float:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::string:
+            case value_t::binary:
+            {
+                if (JSON_HEDLEY_LIKELY(!first.m_it.primitive_iterator.is_begin()
+                                       || !last.m_it.primitive_iterator.is_end()))
+                {
+                    JSON_THROW(invalid_iterator::create(204, "iterators out of range", *this));
+                }
+
+                if (is_string())
+                {
+                    AllocatorType<string_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.string);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.string, 1);
+                    m_value.string = nullptr;
+                }
+                else if (is_binary())
+                {
+                    AllocatorType<binary_t> alloc;
+                    std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.binary);
+                    std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.binary, 1);
+                    m_value.binary = nullptr;
+                }
+
+                m_type = value_t::null;
+                assert_invariant();
+                break;
+            }
+
+            case value_t::object:
+            {
+                result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator,
+                                              last.m_it.object_iterator);
+                break;
+            }
+
+            case value_t::array:
+            {
+                result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator,
+                                             last.m_it.array_iterator);
+                break;
+            }
+
+            case value_t::null:
+            case value_t::discarded:
+            default:
+                JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this));
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief remove element from a JSON object given a key
+
+    Removes elements from a JSON object with the key value @a key.
+
+    @param[in] key value of the elements to remove
+
+    @return Number of elements removed. If @a ObjectType is the default
+    `std::map` type, the return value will always be `0` (@a key was not
+    found) or `1` (@a key was found).
+
+    @post References and iterators to the erased elements are invalidated.
+    Other references and iterators are not affected.
+
+    @throw type_error.307 when called on a type other than JSON object;
+    example: `"cannot use erase() with null"`
+
+    @complexity `log(size()) + count(key)`
+
+    @liveexample{The example shows the effect of `erase()`.,erase__key_type}
+
+    @sa see @ref erase(IteratorType) -- removes the element at a given position
+    @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in
+    the given range
+    @sa see @ref erase(const size_type) -- removes the element from an array at
+    the given index
+
+    @since version 1.0.0
+    */
+    size_type erase(const typename object_t::key_type& key)
+    {
+        // this erase only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            return m_value.object->erase(key);
+        }
+
+        JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief remove element from a JSON array given an index
+
+    Removes element from a JSON array at the index @a idx.
+
+    @param[in] idx index of the element to remove
+
+    @throw type_error.307 when called on a type other than JSON object;
+    example: `"cannot use erase() with null"`
+    @throw out_of_range.401 when `idx >= size()`; example: `"array index 17
+    is out of range"`
+
+    @complexity Linear in distance between @a idx and the end of the container.
+
+    @liveexample{The example shows the effect of `erase()`.,erase__size_type}
+
+    @sa see @ref erase(IteratorType) -- removes the element at a given position
+    @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in
+    the given range
+    @sa see @ref erase(const typename object_t::key_type&) -- removes the element
+    from an object at the given key
+
+    @since version 1.0.0
+    */
+    void erase(const size_type idx)
+    {
+        // this erase only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            if (JSON_HEDLEY_UNLIKELY(idx >= size()))
+            {
+                JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this));
+            }
+
+            m_value.array->erase(m_value.array->begin() + static_cast<difference_type>(idx));
+        }
+        else
+        {
+            JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /// @}
+
+
+    ////////////
+    // lookup //
+    ////////////
+
+    /// @name lookup
+    /// @{
+
+    /*!
+    @brief find an element in a JSON object
+
+    Finds an element in a JSON object with key equivalent to @a key. If the
+    element is not found or the JSON value is not an object, end() is
+    returned.
+
+    @note This method always returns @ref end() when executed on a JSON type
+          that is not an object.
+
+    @param[in] key key value of the element to search for.
+
+    @return Iterator to an element with key equivalent to @a key. If no such
+    element is found or the JSON value is not an object, past-the-end (see
+    @ref end()) iterator is returned.
+
+    @complexity Logarithmic in the size of the JSON object.
+
+    @liveexample{The example shows how `find()` is used.,find__key_type}
+
+    @sa see @ref contains(KeyT&&) const -- checks whether a key exists
+
+    @since version 1.0.0
+    */
+    template<typename KeyT>
+    iterator find(KeyT&& key)
+    {
+        auto result = end();
+
+        if (is_object())
+        {
+            result.m_it.object_iterator = m_value.object->find(std::forward<KeyT>(key));
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief find an element in a JSON object
+    @copydoc find(KeyT&&)
+    */
+    template<typename KeyT>
+    const_iterator find(KeyT&& key) const
+    {
+        auto result = cend();
+
+        if (is_object())
+        {
+            result.m_it.object_iterator = m_value.object->find(std::forward<KeyT>(key));
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief returns the number of occurrences of a key in a JSON object
+
+    Returns the number of elements with key @a key. If ObjectType is the
+    default `std::map` type, the return value will always be `0` (@a key was
+    not found) or `1` (@a key was found).
+
+    @note This method always returns `0` when executed on a JSON type that is
+          not an object.
+
+    @param[in] key key value of the element to count
+
+    @return Number of elements with key @a key. If the JSON value is not an
+    object, the return value will be `0`.
+
+    @complexity Logarithmic in the size of the JSON object.
+
+    @liveexample{The example shows how `count()` is used.,count}
+
+    @since version 1.0.0
+    */
+    template<typename KeyT>
+    size_type count(KeyT&& key) const
+    {
+        // return 0 for all nonobject types
+        return is_object() ? m_value.object->count(std::forward<KeyT>(key)) : 0;
+    }
+
+    /*!
+    @brief check the existence of an element in a JSON object
+
+    Check whether an element exists in a JSON object with key equivalent to
+    @a key. If the element is not found or the JSON value is not an object,
+    false is returned.
+
+    @note This method always returns false when executed on a JSON type
+          that is not an object.
+
+    @param[in] key key value to check its existence.
+
+    @return true if an element with specified @a key exists. If no such
+    element with such key is found or the JSON value is not an object,
+    false is returned.
+
+    @complexity Logarithmic in the size of the JSON object.
+
+    @liveexample{The following code shows an example for `contains()`.,contains}
+
+    @sa see @ref find(KeyT&&) -- returns an iterator to an object element
+    @sa see @ref contains(const json_pointer&) const -- checks the existence for a JSON pointer
+
+    @since version 3.6.0
+    */
+    template < typename KeyT, typename std::enable_if <
+                   !std::is_same<typename std::decay<KeyT>::type, json_pointer>::value, int >::type = 0 >
+    bool contains(KeyT && key) const
+    {
+        return is_object() && m_value.object->find(std::forward<KeyT>(key)) != m_value.object->end();
+    }
+
+    /*!
+    @brief check the existence of an element in a JSON object given a JSON pointer
+
+    Check whether the given JSON pointer @a ptr can be resolved in the current
+    JSON value.
+
+    @note This method can be executed on any JSON value type.
+
+    @param[in] ptr JSON pointer to check its existence.
+
+    @return true if the JSON pointer can be resolved to a stored value, false
+    otherwise.
+
+    @post If `j.contains(ptr)` returns true, it is safe to call `j[ptr]`.
+
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+
+    @complexity Logarithmic in the size of the JSON object.
+
+    @liveexample{The following code shows an example for `contains()`.,contains_json_pointer}
+
+    @sa see @ref contains(KeyT &&) const -- checks the existence of a key
+
+    @since version 3.7.0
+    */
+    bool contains(const json_pointer& ptr) const
+    {
+        return ptr.contains(this);
+    }
+
+    /// @}
+
+
+    ///////////////
+    // iterators //
+    ///////////////
+
+    /// @name iterators
+    /// @{
+
+    /*!
+    @brief returns an iterator to the first element
+
+    Returns an iterator to the first element.
+
+    @image html range-begin-end.svg "Illustration from cppreference.com"
+
+    @return iterator to the first element
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+
+    @liveexample{The following code shows an example for `begin()`.,begin}
+
+    @sa see @ref cbegin() -- returns a const iterator to the beginning
+    @sa see @ref end() -- returns an iterator to the end
+    @sa see @ref cend() -- returns a const iterator to the end
+
+    @since version 1.0.0
+    */
+    iterator begin() noexcept
+    {
+        iterator result(this);
+        result.set_begin();
+        return result;
+    }
+
+    /*!
+    @copydoc basic_json::cbegin()
+    */
+    const_iterator begin() const noexcept
+    {
+        return cbegin();
+    }
+
+    /*!
+    @brief returns a const iterator to the first element
+
+    Returns a const iterator to the first element.
+
+    @image html range-begin-end.svg "Illustration from cppreference.com"
+
+    @return const iterator to the first element
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `const_cast<const basic_json&>(*this).begin()`.
+
+    @liveexample{The following code shows an example for `cbegin()`.,cbegin}
+
+    @sa see @ref begin() -- returns an iterator to the beginning
+    @sa see @ref end() -- returns an iterator to the end
+    @sa see @ref cend() -- returns a const iterator to the end
+
+    @since version 1.0.0
+    */
+    const_iterator cbegin() const noexcept
+    {
+        const_iterator result(this);
+        result.set_begin();
+        return result;
+    }
+
+    /*!
+    @brief returns an iterator to one past the last element
+
+    Returns an iterator to one past the last element.
+
+    @image html range-begin-end.svg "Illustration from cppreference.com"
+
+    @return iterator one past the last element
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+
+    @liveexample{The following code shows an example for `end()`.,end}
+
+    @sa see @ref cend() -- returns a const iterator to the end
+    @sa see @ref begin() -- returns an iterator to the beginning
+    @sa see @ref cbegin() -- returns a const iterator to the beginning
+
+    @since version 1.0.0
+    */
+    iterator end() noexcept
+    {
+        iterator result(this);
+        result.set_end();
+        return result;
+    }
+
+    /*!
+    @copydoc basic_json::cend()
+    */
+    const_iterator end() const noexcept
+    {
+        return cend();
+    }
+
+    /*!
+    @brief returns a const iterator to one past the last element
+
+    Returns a const iterator to one past the last element.
+
+    @image html range-begin-end.svg "Illustration from cppreference.com"
+
+    @return const iterator one past the last element
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `const_cast<const basic_json&>(*this).end()`.
+
+    @liveexample{The following code shows an example for `cend()`.,cend}
+
+    @sa see @ref end() -- returns an iterator to the end
+    @sa see @ref begin() -- returns an iterator to the beginning
+    @sa see @ref cbegin() -- returns a const iterator to the beginning
+
+    @since version 1.0.0
+    */
+    const_iterator cend() const noexcept
+    {
+        const_iterator result(this);
+        result.set_end();
+        return result;
+    }
+
+    /*!
+    @brief returns an iterator to the reverse-beginning
+
+    Returns an iterator to the reverse-beginning; that is, the last element.
+
+    @image html range-rbegin-rend.svg "Illustration from cppreference.com"
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `reverse_iterator(end())`.
+
+    @liveexample{The following code shows an example for `rbegin()`.,rbegin}
+
+    @sa see @ref crbegin() -- returns a const reverse iterator to the beginning
+    @sa see @ref rend() -- returns a reverse iterator to the end
+    @sa see @ref crend() -- returns a const reverse iterator to the end
+
+    @since version 1.0.0
+    */
+    reverse_iterator rbegin() noexcept
+    {
+        return reverse_iterator(end());
+    }
+
+    /*!
+    @copydoc basic_json::crbegin()
+    */
+    const_reverse_iterator rbegin() const noexcept
+    {
+        return crbegin();
+    }
+
+    /*!
+    @brief returns an iterator to the reverse-end
+
+    Returns an iterator to the reverse-end; that is, one before the first
+    element.
+
+    @image html range-rbegin-rend.svg "Illustration from cppreference.com"
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `reverse_iterator(begin())`.
+
+    @liveexample{The following code shows an example for `rend()`.,rend}
+
+    @sa see @ref crend() -- returns a const reverse iterator to the end
+    @sa see @ref rbegin() -- returns a reverse iterator to the beginning
+    @sa see @ref crbegin() -- returns a const reverse iterator to the beginning
+
+    @since version 1.0.0
+    */
+    reverse_iterator rend() noexcept
+    {
+        return reverse_iterator(begin());
+    }
+
+    /*!
+    @copydoc basic_json::crend()
+    */
+    const_reverse_iterator rend() const noexcept
+    {
+        return crend();
+    }
+
+    /*!
+    @brief returns a const reverse iterator to the last element
+
+    Returns a const iterator to the reverse-beginning; that is, the last
+    element.
+
+    @image html range-rbegin-rend.svg "Illustration from cppreference.com"
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `const_cast<const basic_json&>(*this).rbegin()`.
+
+    @liveexample{The following code shows an example for `crbegin()`.,crbegin}
+
+    @sa see @ref rbegin() -- returns a reverse iterator to the beginning
+    @sa see @ref rend() -- returns a reverse iterator to the end
+    @sa see @ref crend() -- returns a const reverse iterator to the end
+
+    @since version 1.0.0
+    */
+    const_reverse_iterator crbegin() const noexcept
+    {
+        return const_reverse_iterator(cend());
+    }
+
+    /*!
+    @brief returns a const reverse iterator to one before the first
+
+    Returns a const reverse iterator to the reverse-end; that is, one before
+    the first element.
+
+    @image html range-rbegin-rend.svg "Illustration from cppreference.com"
+
+    @complexity Constant.
+
+    @requirement This function helps `basic_json` satisfying the
+    [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `const_cast<const basic_json&>(*this).rend()`.
+
+    @liveexample{The following code shows an example for `crend()`.,crend}
+
+    @sa see @ref rend() -- returns a reverse iterator to the end
+    @sa see @ref rbegin() -- returns a reverse iterator to the beginning
+    @sa see @ref crbegin() -- returns a const reverse iterator to the beginning
+
+    @since version 1.0.0
+    */
+    const_reverse_iterator crend() const noexcept
+    {
+        return const_reverse_iterator(cbegin());
+    }
+
+  public:
+    /*!
+    @brief wrapper to access iterator member functions in range-based for
+
+    This function allows to access @ref iterator::key() and @ref
+    iterator::value() during range-based for loops. In these loops, a
+    reference to the JSON values is returned, so there is no access to the
+    underlying iterator.
+
+    For loop without iterator_wrapper:
+
+    @code{cpp}
+    for (auto it = j_object.begin(); it != j_object.end(); ++it)
+    {
+        std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
+    }
+    @endcode
+
+    Range-based for loop without iterator proxy:
+
+    @code{cpp}
+    for (auto it : j_object)
+    {
+        // "it" is of type json::reference and has no key() member
+        std::cout << "value: " << it << '\n';
+    }
+    @endcode
+
+    Range-based for loop with iterator proxy:
+
+    @code{cpp}
+    for (auto it : json::iterator_wrapper(j_object))
+    {
+        std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
+    }
+    @endcode
+
+    @note When iterating over an array, `key()` will return the index of the
+          element as string (see example).
+
+    @param[in] ref  reference to a JSON value
+    @return iteration proxy object wrapping @a ref with an interface to use in
+            range-based for loops
+
+    @liveexample{The following code shows how the wrapper is used,iterator_wrapper}
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Constant.
+
+    @note The name of this function is not yet final and may change in the
+    future.
+
+    @deprecated This stream operator is deprecated and will be removed in
+                future 4.0.0 of the library. Please use @ref items() instead;
+                that is, replace `json::iterator_wrapper(j)` with `j.items()`.
+    */
+    JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items())
+    static iteration_proxy<iterator> iterator_wrapper(reference ref) noexcept
+    {
+        return ref.items();
+    }
+
+    /*!
+    @copydoc iterator_wrapper(reference)
+    */
+    JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items())
+    static iteration_proxy<const_iterator> iterator_wrapper(const_reference ref) noexcept
+    {
+        return ref.items();
+    }
+
+    /*!
+    @brief helper to access iterator member functions in range-based for
+
+    This function allows to access @ref iterator::key() and @ref
+    iterator::value() during range-based for loops. In these loops, a
+    reference to the JSON values is returned, so there is no access to the
+    underlying iterator.
+
+    For loop without `items()` function:
+
+    @code{cpp}
+    for (auto it = j_object.begin(); it != j_object.end(); ++it)
+    {
+        std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
+    }
+    @endcode
+
+    Range-based for loop without `items()` function:
+
+    @code{cpp}
+    for (auto it : j_object)
+    {
+        // "it" is of type json::reference and has no key() member
+        std::cout << "value: " << it << '\n';
+    }
+    @endcode
+
+    Range-based for loop with `items()` function:
+
+    @code{cpp}
+    for (auto& el : j_object.items())
+    {
+        std::cout << "key: " << el.key() << ", value:" << el.value() << '\n';
+    }
+    @endcode
+
+    The `items()` function also allows to use
+    [structured bindings](https://en.cppreference.com/w/cpp/language/structured_binding)
+    (C++17):
+
+    @code{cpp}
+    for (auto& [key, val] : j_object.items())
+    {
+        std::cout << "key: " << key << ", value:" << val << '\n';
+    }
+    @endcode
+
+    @note When iterating over an array, `key()` will return the index of the
+          element as string (see example). For primitive types (e.g., numbers),
+          `key()` returns an empty string.
+
+    @warning Using `items()` on temporary objects is dangerous. Make sure the
+             object's lifetime exeeds the iteration. See
+             <https://github.com/nlohmann/json/issues/2040> for more
+             information.
+
+    @return iteration proxy object wrapping @a ref with an interface to use in
+            range-based for loops
+
+    @liveexample{The following code shows how the function is used.,items}
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Constant.
+
+    @since version 3.1.0, structured bindings support since 3.5.0.
+    */
+    iteration_proxy<iterator> items() noexcept
+    {
+        return iteration_proxy<iterator>(*this);
+    }
+
+    /*!
+    @copydoc items()
+    */
+    iteration_proxy<const_iterator> items() const noexcept
+    {
+        return iteration_proxy<const_iterator>(*this);
+    }
+
+    /// @}
+
+
+    //////////////
+    // capacity //
+    //////////////
+
+    /// @name capacity
+    /// @{
+
+    /*!
+    @brief checks whether the container is empty.
+
+    Checks if a JSON value has no elements (i.e. whether its @ref size is `0`).
+
+    @return The return value depends on the different types and is
+            defined as follows:
+            Value type  | return value
+            ----------- | -------------
+            null        | `true`
+            boolean     | `false`
+            string      | `false`
+            number      | `false`
+            binary      | `false`
+            object      | result of function `object_t::empty()`
+            array       | result of function `array_t::empty()`
+
+    @liveexample{The following code uses `empty()` to check if a JSON
+    object contains any elements.,empty}
+
+    @complexity Constant, as long as @ref array_t and @ref object_t satisfy
+    the Container concept; that is, their `empty()` functions have constant
+    complexity.
+
+    @iterators No changes.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @note This function does not return whether a string stored as JSON value
+    is empty - it returns whether the JSON container itself is empty which is
+    false in the case of a string.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `begin() == end()`.
+
+    @sa see @ref size() -- returns the number of elements
+
+    @since version 1.0.0
+    */
+    bool empty() const noexcept
+    {
+        switch (m_type)
+        {
+            case value_t::null:
+            {
+                // null values are empty
+                return true;
+            }
+
+            case value_t::array:
+            {
+                // delegate call to array_t::empty()
+                return m_value.array->empty();
+            }
+
+            case value_t::object:
+            {
+                // delegate call to object_t::empty()
+                return m_value.object->empty();
+            }
+
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                // all other types are nonempty
+                return false;
+            }
+        }
+    }
+
+    /*!
+    @brief returns the number of elements
+
+    Returns the number of elements in a JSON value.
+
+    @return The return value depends on the different types and is
+            defined as follows:
+            Value type  | return value
+            ----------- | -------------
+            null        | `0`
+            boolean     | `1`
+            string      | `1`
+            number      | `1`
+            binary      | `1`
+            object      | result of function object_t::size()
+            array       | result of function array_t::size()
+
+    @liveexample{The following code calls `size()` on the different value
+    types.,size}
+
+    @complexity Constant, as long as @ref array_t and @ref object_t satisfy
+    the Container concept; that is, their size() functions have constant
+    complexity.
+
+    @iterators No changes.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @note This function does not return the length of a string stored as JSON
+    value - it returns the number of elements in the JSON value which is 1 in
+    the case of a string.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of `std::distance(begin(), end())`.
+
+    @sa see @ref empty() -- checks whether the container is empty
+    @sa see @ref max_size() -- returns the maximal number of elements
+
+    @since version 1.0.0
+    */
+    size_type size() const noexcept
+    {
+        switch (m_type)
+        {
+            case value_t::null:
+            {
+                // null values are empty
+                return 0;
+            }
+
+            case value_t::array:
+            {
+                // delegate call to array_t::size()
+                return m_value.array->size();
+            }
+
+            case value_t::object:
+            {
+                // delegate call to object_t::size()
+                return m_value.object->size();
+            }
+
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                // all other types have size 1
+                return 1;
+            }
+        }
+    }
+
+    /*!
+    @brief returns the maximum possible number of elements
+
+    Returns the maximum number of elements a JSON value is able to hold due to
+    system or library implementation limitations, i.e. `std::distance(begin(),
+    end())` for the JSON value.
+
+    @return The return value depends on the different types and is
+            defined as follows:
+            Value type  | return value
+            ----------- | -------------
+            null        | `0` (same as `size()`)
+            boolean     | `1` (same as `size()`)
+            string      | `1` (same as `size()`)
+            number      | `1` (same as `size()`)
+            binary      | `1` (same as `size()`)
+            object      | result of function `object_t::max_size()`
+            array       | result of function `array_t::max_size()`
+
+    @liveexample{The following code calls `max_size()` on the different value
+    types. Note the output is implementation specific.,max_size}
+
+    @complexity Constant, as long as @ref array_t and @ref object_t satisfy
+    the Container concept; that is, their `max_size()` functions have constant
+    complexity.
+
+    @iterators No changes.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @requirement This function helps `basic_json` satisfying the
+    [Container](https://en.cppreference.com/w/cpp/named_req/Container)
+    requirements:
+    - The complexity is constant.
+    - Has the semantics of returning `b.size()` where `b` is the largest
+      possible JSON value.
+
+    @sa see @ref size() -- returns the number of elements
+
+    @since version 1.0.0
+    */
+    size_type max_size() const noexcept
+    {
+        switch (m_type)
+        {
+            case value_t::array:
+            {
+                // delegate call to array_t::max_size()
+                return m_value.array->max_size();
+            }
+
+            case value_t::object:
+            {
+                // delegate call to object_t::max_size()
+                return m_value.object->max_size();
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                // all other types have max_size() == size()
+                return size();
+            }
+        }
+    }
+
+    /// @}
+
+
+    ///////////////
+    // modifiers //
+    ///////////////
+
+    /// @name modifiers
+    /// @{
+
+    /*!
+    @brief clears the contents
+
+    Clears the content of a JSON value and resets it to the default value as
+    if @ref basic_json(value_t) would have been called with the current value
+    type from @ref type():
+
+    Value type  | initial value
+    ----------- | -------------
+    null        | `null`
+    boolean     | `false`
+    string      | `""`
+    number      | `0`
+    binary      | An empty byte vector
+    object      | `{}`
+    array       | `[]`
+
+    @post Has the same effect as calling
+    @code {.cpp}
+    *this = basic_json(type());
+    @endcode
+
+    @liveexample{The example below shows the effect of `clear()` to different
+    JSON types.,clear}
+
+    @complexity Linear in the size of the JSON value.
+
+    @iterators All iterators, pointers and references related to this container
+               are invalidated.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @sa see @ref basic_json(value_t) -- constructor that creates an object with the
+        same value than calling `clear()`
+
+    @since version 1.0.0
+    */
+    void clear() noexcept
+    {
+        switch (m_type)
+        {
+            case value_t::number_integer:
+            {
+                m_value.number_integer = 0;
+                break;
+            }
+
+            case value_t::number_unsigned:
+            {
+                m_value.number_unsigned = 0;
+                break;
+            }
+
+            case value_t::number_float:
+            {
+                m_value.number_float = 0.0;
+                break;
+            }
+
+            case value_t::boolean:
+            {
+                m_value.boolean = false;
+                break;
+            }
+
+            case value_t::string:
+            {
+                m_value.string->clear();
+                break;
+            }
+
+            case value_t::binary:
+            {
+                m_value.binary->clear();
+                break;
+            }
+
+            case value_t::array:
+            {
+                m_value.array->clear();
+                break;
+            }
+
+            case value_t::object:
+            {
+                m_value.object->clear();
+                break;
+            }
+
+            case value_t::null:
+            case value_t::discarded:
+            default:
+                break;
+        }
+    }
+
+    /*!
+    @brief add an object to an array
+
+    Appends the given element @a val to the end of the JSON value. If the
+    function is called on a JSON null value, an empty array is created before
+    appending @a val.
+
+    @param[in] val the value to add to the JSON array
+
+    @throw type_error.308 when called on a type other than JSON array or
+    null; example: `"cannot use push_back() with number"`
+
+    @complexity Amortized constant.
+
+    @liveexample{The example shows how `push_back()` and `+=` can be used to
+    add elements to a JSON array. Note how the `null` value was silently
+    converted to a JSON array.,push_back}
+
+    @since version 1.0.0
+    */
+    void push_back(basic_json&& val)
+    {
+        // push_back only works for null objects or arrays
+        if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array())))
+        {
+            JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this));
+        }
+
+        // transform null object into an array
+        if (is_null())
+        {
+            m_type = value_t::array;
+            m_value = value_t::array;
+            assert_invariant();
+        }
+
+        // add element to array (move semantics)
+        const auto old_capacity = m_value.array->capacity();
+        m_value.array->push_back(std::move(val));
+        set_parent(m_value.array->back(), old_capacity);
+        // if val is moved from, basic_json move constructor marks it null so we do not call the destructor
+    }
+
+    /*!
+    @brief add an object to an array
+    @copydoc push_back(basic_json&&)
+    */
+    reference operator+=(basic_json&& val)
+    {
+        push_back(std::move(val));
+        return *this;
+    }
+
+    /*!
+    @brief add an object to an array
+    @copydoc push_back(basic_json&&)
+    */
+    void push_back(const basic_json& val)
+    {
+        // push_back only works for null objects or arrays
+        if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array())))
+        {
+            JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this));
+        }
+
+        // transform null object into an array
+        if (is_null())
+        {
+            m_type = value_t::array;
+            m_value = value_t::array;
+            assert_invariant();
+        }
+
+        // add element to array
+        const auto old_capacity = m_value.array->capacity();
+        m_value.array->push_back(val);
+        set_parent(m_value.array->back(), old_capacity);
+    }
+
+    /*!
+    @brief add an object to an array
+    @copydoc push_back(basic_json&&)
+    */
+    reference operator+=(const basic_json& val)
+    {
+        push_back(val);
+        return *this;
+    }
+
+    /*!
+    @brief add an object to an object
+
+    Inserts the given element @a val to the JSON object. If the function is
+    called on a JSON null value, an empty object is created before inserting
+    @a val.
+
+    @param[in] val the value to add to the JSON object
+
+    @throw type_error.308 when called on a type other than JSON object or
+    null; example: `"cannot use push_back() with number"`
+
+    @complexity Logarithmic in the size of the container, O(log(`size()`)).
+
+    @liveexample{The example shows how `push_back()` and `+=` can be used to
+    add elements to a JSON object. Note how the `null` value was silently
+    converted to a JSON object.,push_back__object_t__value}
+
+    @since version 1.0.0
+    */
+    void push_back(const typename object_t::value_type& val)
+    {
+        // push_back only works for null objects or objects
+        if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object())))
+        {
+            JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this));
+        }
+
+        // transform null object into an object
+        if (is_null())
+        {
+            m_type = value_t::object;
+            m_value = value_t::object;
+            assert_invariant();
+        }
+
+        // add element to object
+        auto res = m_value.object->insert(val);
+        set_parent(res.first->second);
+    }
+
+    /*!
+    @brief add an object to an object
+    @copydoc push_back(const typename object_t::value_type&)
+    */
+    reference operator+=(const typename object_t::value_type& val)
+    {
+        push_back(val);
+        return *this;
+    }
+
+    /*!
+    @brief add an object to an object
+
+    This function allows to use `push_back` with an initializer list. In case
+
+    1. the current value is an object,
+    2. the initializer list @a init contains only two elements, and
+    3. the first element of @a init is a string,
+
+    @a init is converted into an object element and added using
+    @ref push_back(const typename object_t::value_type&). Otherwise, @a init
+    is converted to a JSON value and added using @ref push_back(basic_json&&).
+
+    @param[in] init  an initializer list
+
+    @complexity Linear in the size of the initializer list @a init.
+
+    @note This function is required to resolve an ambiguous overload error,
+          because pairs like `{"key", "value"}` can be both interpreted as
+          `object_t::value_type` or `std::initializer_list<basic_json>`, see
+          https://github.com/nlohmann/json/issues/235 for more information.
+
+    @liveexample{The example shows how initializer lists are treated as
+    objects when possible.,push_back__initializer_list}
+    */
+    void push_back(initializer_list_t init)
+    {
+        if (is_object() && init.size() == 2 && (*init.begin())->is_string())
+        {
+            basic_json&& key = init.begin()->moved_or_copied();
+            push_back(typename object_t::value_type(
+                          std::move(key.get_ref<string_t&>()), (init.begin() + 1)->moved_or_copied()));
+        }
+        else
+        {
+            push_back(basic_json(init));
+        }
+    }
+
+    /*!
+    @brief add an object to an object
+    @copydoc push_back(initializer_list_t)
+    */
+    reference operator+=(initializer_list_t init)
+    {
+        push_back(init);
+        return *this;
+    }
+
+    /*!
+    @brief add an object to an array
+
+    Creates a JSON value from the passed parameters @a args to the end of the
+    JSON value. If the function is called on a JSON null value, an empty array
+    is created before appending the value created from @a args.
+
+    @param[in] args arguments to forward to a constructor of @ref basic_json
+    @tparam Args compatible types to create a @ref basic_json object
+
+    @return reference to the inserted element
+
+    @throw type_error.311 when called on a type other than JSON array or
+    null; example: `"cannot use emplace_back() with number"`
+
+    @complexity Amortized constant.
+
+    @liveexample{The example shows how `push_back()` can be used to add
+    elements to a JSON array. Note how the `null` value was silently converted
+    to a JSON array.,emplace_back}
+
+    @since version 2.0.8, returns reference since 3.7.0
+    */
+    template<class... Args>
+    reference emplace_back(Args&& ... args)
+    {
+        // emplace_back only works for null objects or arrays
+        if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array())))
+        {
+            JSON_THROW(type_error::create(311, "cannot use emplace_back() with " + std::string(type_name()), *this));
+        }
+
+        // transform null object into an array
+        if (is_null())
+        {
+            m_type = value_t::array;
+            m_value = value_t::array;
+            assert_invariant();
+        }
+
+        // add element to array (perfect forwarding)
+        const auto old_capacity = m_value.array->capacity();
+        m_value.array->emplace_back(std::forward<Args>(args)...);
+        return set_parent(m_value.array->back(), old_capacity);
+    }
+
+    /*!
+    @brief add an object to an object if key does not exist
+
+    Inserts a new element into a JSON object constructed in-place with the
+    given @a args if there is no element with the key in the container. If the
+    function is called on a JSON null value, an empty object is created before
+    appending the value created from @a args.
+
+    @param[in] args arguments to forward to a constructor of @ref basic_json
+    @tparam Args compatible types to create a @ref basic_json object
+
+    @return a pair consisting of an iterator to the inserted element, or the
+            already-existing element if no insertion happened, and a bool
+            denoting whether the insertion took place.
+
+    @throw type_error.311 when called on a type other than JSON object or
+    null; example: `"cannot use emplace() with number"`
+
+    @complexity Logarithmic in the size of the container, O(log(`size()`)).
+
+    @liveexample{The example shows how `emplace()` can be used to add elements
+    to a JSON object. Note how the `null` value was silently converted to a
+    JSON object. Further note how no value is added if there was already one
+    value stored with the same key.,emplace}
+
+    @since version 2.0.8
+    */
+    template<class... Args>
+    std::pair<iterator, bool> emplace(Args&& ... args)
+    {
+        // emplace only works for null objects or arrays
+        if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object())))
+        {
+            JSON_THROW(type_error::create(311, "cannot use emplace() with " + std::string(type_name()), *this));
+        }
+
+        // transform null object into an object
+        if (is_null())
+        {
+            m_type = value_t::object;
+            m_value = value_t::object;
+            assert_invariant();
+        }
+
+        // add element to array (perfect forwarding)
+        auto res = m_value.object->emplace(std::forward<Args>(args)...);
+        set_parent(res.first->second);
+
+        // create result iterator and set iterator to the result of emplace
+        auto it = begin();
+        it.m_it.object_iterator = res.first;
+
+        // return pair of iterator and boolean
+        return {it, res.second};
+    }
+
+    /// Helper for insertion of an iterator
+    /// @note: This uses std::distance to support GCC 4.8,
+    ///        see https://github.com/nlohmann/json/pull/1257
+    template<typename... Args>
+    iterator insert_iterator(const_iterator pos, Args&& ... args)
+    {
+        iterator result(this);
+        JSON_ASSERT(m_value.array != nullptr);
+
+        auto insert_pos = std::distance(m_value.array->begin(), pos.m_it.array_iterator);
+        m_value.array->insert(pos.m_it.array_iterator, std::forward<Args>(args)...);
+        result.m_it.array_iterator = m_value.array->begin() + insert_pos;
+
+        // This could have been written as:
+        // result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
+        // but the return value of insert is missing in GCC 4.8, so it is written this way instead.
+
+        set_parents();
+        return result;
+    }
+
+    /*!
+    @brief inserts element
+
+    Inserts element @a val before iterator @a pos.
+
+    @param[in] pos iterator before which the content will be inserted; may be
+    the end() iterator
+    @param[in] val element to insert
+    @return iterator pointing to the inserted @a val.
+
+    @throw type_error.309 if called on JSON values other than arrays;
+    example: `"cannot use insert() with string"`
+    @throw invalid_iterator.202 if @a pos is not an iterator of *this;
+    example: `"iterator does not fit current value"`
+
+    @complexity Constant plus linear in the distance between @a pos and end of
+    the container.
+
+    @liveexample{The example shows how `insert()` is used.,insert}
+
+    @since version 1.0.0
+    */
+    iterator insert(const_iterator pos, const basic_json& val)
+    {
+        // insert only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            // check if iterator pos fits to this JSON value
+            if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
+            {
+                JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this));
+            }
+
+            // insert to array and return iterator
+            return insert_iterator(pos, val);
+        }
+
+        JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief inserts element
+    @copydoc insert(const_iterator, const basic_json&)
+    */
+    iterator insert(const_iterator pos, basic_json&& val)
+    {
+        return insert(pos, val);
+    }
+
+    /*!
+    @brief inserts elements
+
+    Inserts @a cnt copies of @a val before iterator @a pos.
+
+    @param[in] pos iterator before which the content will be inserted; may be
+    the end() iterator
+    @param[in] cnt number of copies of @a val to insert
+    @param[in] val element to insert
+    @return iterator pointing to the first element inserted, or @a pos if
+    `cnt==0`
+
+    @throw type_error.309 if called on JSON values other than arrays; example:
+    `"cannot use insert() with string"`
+    @throw invalid_iterator.202 if @a pos is not an iterator of *this;
+    example: `"iterator does not fit current value"`
+
+    @complexity Linear in @a cnt plus linear in the distance between @a pos
+    and end of the container.
+
+    @liveexample{The example shows how `insert()` is used.,insert__count}
+
+    @since version 1.0.0
+    */
+    iterator insert(const_iterator pos, size_type cnt, const basic_json& val)
+    {
+        // insert only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            // check if iterator pos fits to this JSON value
+            if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
+            {
+                JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this));
+            }
+
+            // insert to array and return iterator
+            return insert_iterator(pos, cnt, val);
+        }
+
+        JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this));
+    }
+
+    /*!
+    @brief inserts elements
+
+    Inserts elements from range `[first, last)` before iterator @a pos.
+
+    @param[in] pos iterator before which the content will be inserted; may be
+    the end() iterator
+    @param[in] first begin of the range of elements to insert
+    @param[in] last end of the range of elements to insert
+
+    @throw type_error.309 if called on JSON values other than arrays; example:
+    `"cannot use insert() with string"`
+    @throw invalid_iterator.202 if @a pos is not an iterator of *this;
+    example: `"iterator does not fit current value"`
+    @throw invalid_iterator.210 if @a first and @a last do not belong to the
+    same JSON value; example: `"iterators do not fit"`
+    @throw invalid_iterator.211 if @a first or @a last are iterators into
+    container for which insert is called; example: `"passed iterators may not
+    belong to container"`
+
+    @return iterator pointing to the first element inserted, or @a pos if
+    `first==last`
+
+    @complexity Linear in `std::distance(first, last)` plus linear in the
+    distance between @a pos and end of the container.
+
+    @liveexample{The example shows how `insert()` is used.,insert__range}
+
+    @since version 1.0.0
+    */
+    iterator insert(const_iterator pos, const_iterator first, const_iterator last)
+    {
+        // insert only works for arrays
+        if (JSON_HEDLEY_UNLIKELY(!is_array()))
+        {
+            JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this));
+        }
+
+        // check if iterator pos fits to this JSON value
+        if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
+        {
+            JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this));
+        }
+
+        // check if range iterators belong to the same JSON object
+        if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this));
+        }
+
+        if (JSON_HEDLEY_UNLIKELY(first.m_object == this))
+        {
+            JSON_THROW(invalid_iterator::create(211, "passed iterators may not belong to container", *this));
+        }
+
+        // insert to array and return iterator
+        return insert_iterator(pos, first.m_it.array_iterator, last.m_it.array_iterator);
+    }
+
+    /*!
+    @brief inserts elements
+
+    Inserts elements from initializer list @a ilist before iterator @a pos.
+
+    @param[in] pos iterator before which the content will be inserted; may be
+    the end() iterator
+    @param[in] ilist initializer list to insert the values from
+
+    @throw type_error.309 if called on JSON values other than arrays; example:
+    `"cannot use insert() with string"`
+    @throw invalid_iterator.202 if @a pos is not an iterator of *this;
+    example: `"iterator does not fit current value"`
+
+    @return iterator pointing to the first element inserted, or @a pos if
+    `ilist` is empty
+
+    @complexity Linear in `ilist.size()` plus linear in the distance between
+    @a pos and end of the container.
+
+    @liveexample{The example shows how `insert()` is used.,insert__ilist}
+
+    @since version 1.0.0
+    */
+    iterator insert(const_iterator pos, initializer_list_t ilist)
+    {
+        // insert only works for arrays
+        if (JSON_HEDLEY_UNLIKELY(!is_array()))
+        {
+            JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this));
+        }
+
+        // check if iterator pos fits to this JSON value
+        if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
+        {
+            JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this));
+        }
+
+        // insert to array and return iterator
+        return insert_iterator(pos, ilist.begin(), ilist.end());
+    }
+
+    /*!
+    @brief inserts elements
+
+    Inserts elements from range `[first, last)`.
+
+    @param[in] first begin of the range of elements to insert
+    @param[in] last end of the range of elements to insert
+
+    @throw type_error.309 if called on JSON values other than objects; example:
+    `"cannot use insert() with string"`
+    @throw invalid_iterator.202 if iterator @a first or @a last does does not
+    point to an object; example: `"iterators first and last must point to
+    objects"`
+    @throw invalid_iterator.210 if @a first and @a last do not belong to the
+    same JSON value; example: `"iterators do not fit"`
+
+    @complexity Logarithmic: `O(N*log(size() + N))`, where `N` is the number
+    of elements to insert.
+
+    @liveexample{The example shows how `insert()` is used.,insert__range_object}
+
+    @since version 3.0.0
+    */
+    void insert(const_iterator first, const_iterator last)
+    {
+        // insert only works for objects
+        if (JSON_HEDLEY_UNLIKELY(!is_object()))
+        {
+            JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this));
+        }
+
+        // check if range iterators belong to the same JSON object
+        if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this));
+        }
+
+        // passed iterators must belong to objects
+        if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object()))
+        {
+            JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this));
+        }
+
+        m_value.object->insert(first.m_it.object_iterator, last.m_it.object_iterator);
+    }
+
+    /*!
+    @brief updates a JSON object from another object, overwriting existing keys
+
+    Inserts all values from JSON object @a j and overwrites existing keys.
+
+    @param[in] j  JSON object to read values from
+
+    @throw type_error.312 if called on JSON values other than objects; example:
+    `"cannot use update() with string"`
+
+    @complexity O(N*log(size() + N)), where N is the number of elements to
+                insert.
+
+    @liveexample{The example shows how `update()` is used.,update}
+
+    @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update
+
+    @since version 3.0.0
+    */
+    void update(const_reference j)
+    {
+        // implicitly convert null value to an empty object
+        if (is_null())
+        {
+            m_type = value_t::object;
+            m_value.object = create<object_t>();
+            assert_invariant();
+        }
+
+        if (JSON_HEDLEY_UNLIKELY(!is_object()))
+        {
+            JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this));
+        }
+        if (JSON_HEDLEY_UNLIKELY(!j.is_object()))
+        {
+            JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(j.type_name()), *this));
+        }
+
+        for (auto it = j.cbegin(); it != j.cend(); ++it)
+        {
+            m_value.object->operator[](it.key()) = it.value();
+#if JSON_DIAGNOSTICS
+            m_value.object->operator[](it.key()).m_parent = this;
+#endif
+        }
+    }
+
+    /*!
+    @brief updates a JSON object from another object, overwriting existing keys
+
+    Inserts all values from from range `[first, last)` and overwrites existing
+    keys.
+
+    @param[in] first begin of the range of elements to insert
+    @param[in] last end of the range of elements to insert
+
+    @throw type_error.312 if called on JSON values other than objects; example:
+    `"cannot use update() with string"`
+    @throw invalid_iterator.202 if iterator @a first or @a last does does not
+    point to an object; example: `"iterators first and last must point to
+    objects"`
+    @throw invalid_iterator.210 if @a first and @a last do not belong to the
+    same JSON value; example: `"iterators do not fit"`
+
+    @complexity O(N*log(size() + N)), where N is the number of elements to
+                insert.
+
+    @liveexample{The example shows how `update()` is used__range.,update}
+
+    @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update
+
+    @since version 3.0.0
+    */
+    void update(const_iterator first, const_iterator last)
+    {
+        // implicitly convert null value to an empty object
+        if (is_null())
+        {
+            m_type = value_t::object;
+            m_value.object = create<object_t>();
+            assert_invariant();
+        }
+
+        if (JSON_HEDLEY_UNLIKELY(!is_object()))
+        {
+            JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this));
+        }
+
+        // check if range iterators belong to the same JSON object
+        if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
+        {
+            JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this));
+        }
+
+        // passed iterators must belong to objects
+        if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object()
+                                 || !last.m_object->is_object()))
+        {
+            JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this));
+        }
+
+        for (auto it = first; it != last; ++it)
+        {
+            m_value.object->operator[](it.key()) = it.value();
+#if JSON_DIAGNOSTICS
+            m_value.object->operator[](it.key()).m_parent = this;
+#endif
+        }
+    }
+
+    /*!
+    @brief exchanges the values
+
+    Exchanges the contents of the JSON value with those of @a other. Does not
+    invoke any move, copy, or swap operations on individual elements. All
+    iterators and references remain valid. The past-the-end iterator is
+    invalidated.
+
+    @param[in,out] other JSON value to exchange the contents with
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how JSON values can be swapped with
+    `swap()`.,swap__reference}
+
+    @since version 1.0.0
+    */
+    void swap(reference other) noexcept (
+        std::is_nothrow_move_constructible<value_t>::value&&
+        std::is_nothrow_move_assignable<value_t>::value&&
+        std::is_nothrow_move_constructible<json_value>::value&&
+        std::is_nothrow_move_assignable<json_value>::value
+    )
+    {
+        std::swap(m_type, other.m_type);
+        std::swap(m_value, other.m_value);
+
+        set_parents();
+        other.set_parents();
+        assert_invariant();
+    }
+
+    /*!
+    @brief exchanges the values
+
+    Exchanges the contents of the JSON value from @a left with those of @a right. Does not
+    invoke any move, copy, or swap operations on individual elements. All
+    iterators and references remain valid. The past-the-end iterator is
+    invalidated. implemented as a friend function callable via ADL.
+
+    @param[in,out] left JSON value to exchange the contents with
+    @param[in,out] right JSON value to exchange the contents with
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how JSON values can be swapped with
+    `swap()`.,swap__reference}
+
+    @since version 1.0.0
+    */
+    friend void swap(reference left, reference right) noexcept (
+        std::is_nothrow_move_constructible<value_t>::value&&
+        std::is_nothrow_move_assignable<value_t>::value&&
+        std::is_nothrow_move_constructible<json_value>::value&&
+        std::is_nothrow_move_assignable<json_value>::value
+    )
+    {
+        left.swap(right);
+    }
+
+    /*!
+    @brief exchanges the values
+
+    Exchanges the contents of a JSON array with those of @a other. Does not
+    invoke any move, copy, or swap operations on individual elements. All
+    iterators and references remain valid. The past-the-end iterator is
+    invalidated.
+
+    @param[in,out] other array to exchange the contents with
+
+    @throw type_error.310 when JSON value is not an array; example: `"cannot
+    use swap() with string"`
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how arrays can be swapped with
+    `swap()`.,swap__array_t}
+
+    @since version 1.0.0
+    */
+    void swap(array_t& other) // NOLINT(bugprone-exception-escape)
+    {
+        // swap only works for arrays
+        if (JSON_HEDLEY_LIKELY(is_array()))
+        {
+            std::swap(*(m_value.array), other);
+        }
+        else
+        {
+            JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief exchanges the values
+
+    Exchanges the contents of a JSON object with those of @a other. Does not
+    invoke any move, copy, or swap operations on individual elements. All
+    iterators and references remain valid. The past-the-end iterator is
+    invalidated.
+
+    @param[in,out] other object to exchange the contents with
+
+    @throw type_error.310 when JSON value is not an object; example:
+    `"cannot use swap() with string"`
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how objects can be swapped with
+    `swap()`.,swap__object_t}
+
+    @since version 1.0.0
+    */
+    void swap(object_t& other) // NOLINT(bugprone-exception-escape)
+    {
+        // swap only works for objects
+        if (JSON_HEDLEY_LIKELY(is_object()))
+        {
+            std::swap(*(m_value.object), other);
+        }
+        else
+        {
+            JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief exchanges the values
+
+    Exchanges the contents of a JSON string with those of @a other. Does not
+    invoke any move, copy, or swap operations on individual elements. All
+    iterators and references remain valid. The past-the-end iterator is
+    invalidated.
+
+    @param[in,out] other string to exchange the contents with
+
+    @throw type_error.310 when JSON value is not a string; example: `"cannot
+    use swap() with boolean"`
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how strings can be swapped with
+    `swap()`.,swap__string_t}
+
+    @since version 1.0.0
+    */
+    void swap(string_t& other) // NOLINT(bugprone-exception-escape)
+    {
+        // swap only works for strings
+        if (JSON_HEDLEY_LIKELY(is_string()))
+        {
+            std::swap(*(m_value.string), other);
+        }
+        else
+        {
+            JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /*!
+    @brief exchanges the values
+
+    Exchanges the contents of a JSON string with those of @a other. Does not
+    invoke any move, copy, or swap operations on individual elements. All
+    iterators and references remain valid. The past-the-end iterator is
+    invalidated.
+
+    @param[in,out] other binary to exchange the contents with
+
+    @throw type_error.310 when JSON value is not a string; example: `"cannot
+    use swap() with boolean"`
+
+    @complexity Constant.
+
+    @liveexample{The example below shows how strings can be swapped with
+    `swap()`.,swap__binary_t}
+
+    @since version 3.8.0
+    */
+    void swap(binary_t& other) // NOLINT(bugprone-exception-escape)
+    {
+        // swap only works for strings
+        if (JSON_HEDLEY_LIKELY(is_binary()))
+        {
+            std::swap(*(m_value.binary), other);
+        }
+        else
+        {
+            JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /// @copydoc swap(binary_t&)
+    void swap(typename binary_t::container_type& other) // NOLINT(bugprone-exception-escape)
+    {
+        // swap only works for strings
+        if (JSON_HEDLEY_LIKELY(is_binary()))
+        {
+            std::swap(*(m_value.binary), other);
+        }
+        else
+        {
+            JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this));
+        }
+    }
+
+    /// @}
+
+  public:
+    //////////////////////////////////////////
+    // lexicographical comparison operators //
+    //////////////////////////////////////////
+
+    /// @name lexicographical comparison operators
+    /// @{
+
+    /*!
+    @brief comparison: equal
+
+    Compares two JSON values for equality according to the following rules:
+    - Two JSON values are equal if (1) they are from the same type and (2)
+      their stored values are the same according to their respective
+      `operator==`.
+    - Integer and floating-point numbers are automatically converted before
+      comparison. Note that two NaN values are always treated as unequal.
+    - Two JSON null values are equal.
+
+    @note Floating-point inside JSON values numbers are compared with
+    `json::number_float_t::operator==` which is `double::operator==` by
+    default. To compare floating-point while respecting an epsilon, an alternative
+    [comparison function](https://github.com/mariokonrad/marnav/blob/master/include/marnav/math/floatingpoint.hpp#L34-#L39)
+    could be used, for instance
+    @code {.cpp}
+    template<typename T, typename = typename std::enable_if<std::is_floating_point<T>::value, T>::type>
+    inline bool is_same(T a, T b, T epsilon = std::numeric_limits<T>::epsilon()) noexcept
+    {
+        return std::abs(a - b) <= epsilon;
+    }
+    @endcode
+    Or you can self-defined operator equal function like this:
+    @code {.cpp}
+    bool my_equal(const_reference lhs, const_reference rhs) {
+    const auto lhs_type lhs.type();
+    const auto rhs_type rhs.type();
+    if (lhs_type == rhs_type) {
+        switch(lhs_type)
+            // self_defined case
+            case value_t::number_float:
+                return std::abs(lhs - rhs) <= std::numeric_limits<float>::epsilon();
+            // other cases remain the same with the original
+            ...
+    }
+    ...
+    }
+    @endcode
+
+    @note NaN values never compare equal to themselves or to other NaN values.
+
+    @param[in] lhs  first JSON value to consider
+    @param[in] rhs  second JSON value to consider
+    @return whether the values @a lhs and @a rhs are equal
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @complexity Linear.
+
+    @liveexample{The example demonstrates comparing several JSON
+    types.,operator__equal}
+
+    @since version 1.0.0
+    */
+    friend bool operator==(const_reference lhs, const_reference rhs) noexcept
+    {
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
+        const auto lhs_type = lhs.type();
+        const auto rhs_type = rhs.type();
+
+        if (lhs_type == rhs_type)
+        {
+            switch (lhs_type)
+            {
+                case value_t::array:
+                    return *lhs.m_value.array == *rhs.m_value.array;
+
+                case value_t::object:
+                    return *lhs.m_value.object == *rhs.m_value.object;
+
+                case value_t::null:
+                    return true;
+
+                case value_t::string:
+                    return *lhs.m_value.string == *rhs.m_value.string;
+
+                case value_t::boolean:
+                    return lhs.m_value.boolean == rhs.m_value.boolean;
+
+                case value_t::number_integer:
+                    return lhs.m_value.number_integer == rhs.m_value.number_integer;
+
+                case value_t::number_unsigned:
+                    return lhs.m_value.number_unsigned == rhs.m_value.number_unsigned;
+
+                case value_t::number_float:
+                    return lhs.m_value.number_float == rhs.m_value.number_float;
+
+                case value_t::binary:
+                    return *lhs.m_value.binary == *rhs.m_value.binary;
+
+                case value_t::discarded:
+                default:
+                    return false;
+            }
+        }
+        else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float)
+        {
+            return static_cast<number_float_t>(lhs.m_value.number_integer) == rhs.m_value.number_float;
+        }
+        else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer)
+        {
+            return lhs.m_value.number_float == static_cast<number_float_t>(rhs.m_value.number_integer);
+        }
+        else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float)
+        {
+            return static_cast<number_float_t>(lhs.m_value.number_unsigned) == rhs.m_value.number_float;
+        }
+        else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned)
+        {
+            return lhs.m_value.number_float == static_cast<number_float_t>(rhs.m_value.number_unsigned);
+        }
+        else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer)
+        {
+            return static_cast<number_integer_t>(lhs.m_value.number_unsigned) == rhs.m_value.number_integer;
+        }
+        else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned)
+        {
+            return lhs.m_value.number_integer == static_cast<number_integer_t>(rhs.m_value.number_unsigned);
+        }
+
+        return false;
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+    }
+
+    /*!
+    @brief comparison: equal
+    @copydoc operator==(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator==(const_reference lhs, ScalarType rhs) noexcept
+    {
+        return lhs == basic_json(rhs);
+    }
+
+    /*!
+    @brief comparison: equal
+    @copydoc operator==(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator==(ScalarType lhs, const_reference rhs) noexcept
+    {
+        return basic_json(lhs) == rhs;
+    }
+
+    /*!
+    @brief comparison: not equal
+
+    Compares two JSON values for inequality by calculating `not (lhs == rhs)`.
+
+    @param[in] lhs  first JSON value to consider
+    @param[in] rhs  second JSON value to consider
+    @return whether the values @a lhs and @a rhs are not equal
+
+    @complexity Linear.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @liveexample{The example demonstrates comparing several JSON
+    types.,operator__notequal}
+
+    @since version 1.0.0
+    */
+    friend bool operator!=(const_reference lhs, const_reference rhs) noexcept
+    {
+        return !(lhs == rhs);
+    }
+
+    /*!
+    @brief comparison: not equal
+    @copydoc operator!=(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator!=(const_reference lhs, ScalarType rhs) noexcept
+    {
+        return lhs != basic_json(rhs);
+    }
+
+    /*!
+    @brief comparison: not equal
+    @copydoc operator!=(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator!=(ScalarType lhs, const_reference rhs) noexcept
+    {
+        return basic_json(lhs) != rhs;
+    }
+
+    /*!
+    @brief comparison: less than
+
+    Compares whether one JSON value @a lhs is less than another JSON value @a
+    rhs according to the following rules:
+    - If @a lhs and @a rhs have the same type, the values are compared using
+      the default `<` operator.
+    - Integer and floating-point numbers are automatically converted before
+      comparison
+    - In case @a lhs and @a rhs have different types, the values are ignored
+      and the order of the types is considered, see
+      @ref operator<(const value_t, const value_t).
+
+    @param[in] lhs  first JSON value to consider
+    @param[in] rhs  second JSON value to consider
+    @return whether @a lhs is less than @a rhs
+
+    @complexity Linear.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @liveexample{The example demonstrates comparing several JSON
+    types.,operator__less}
+
+    @since version 1.0.0
+    */
+    friend bool operator<(const_reference lhs, const_reference rhs) noexcept
+    {
+        const auto lhs_type = lhs.type();
+        const auto rhs_type = rhs.type();
+
+        if (lhs_type == rhs_type)
+        {
+            switch (lhs_type)
+            {
+                case value_t::array:
+                    // note parentheses are necessary, see
+                    // https://github.com/nlohmann/json/issues/1530
+                    return (*lhs.m_value.array) < (*rhs.m_value.array);
+
+                case value_t::object:
+                    return (*lhs.m_value.object) < (*rhs.m_value.object);
+
+                case value_t::null:
+                    return false;
+
+                case value_t::string:
+                    return (*lhs.m_value.string) < (*rhs.m_value.string);
+
+                case value_t::boolean:
+                    return (lhs.m_value.boolean) < (rhs.m_value.boolean);
+
+                case value_t::number_integer:
+                    return (lhs.m_value.number_integer) < (rhs.m_value.number_integer);
+
+                case value_t::number_unsigned:
+                    return (lhs.m_value.number_unsigned) < (rhs.m_value.number_unsigned);
+
+                case value_t::number_float:
+                    return (lhs.m_value.number_float) < (rhs.m_value.number_float);
+
+                case value_t::binary:
+                    return (*lhs.m_value.binary) < (*rhs.m_value.binary);
+
+                case value_t::discarded:
+                default:
+                    return false;
+            }
+        }
+        else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float)
+        {
+            return static_cast<number_float_t>(lhs.m_value.number_integer) < rhs.m_value.number_float;
+        }
+        else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer)
+        {
+            return lhs.m_value.number_float < static_cast<number_float_t>(rhs.m_value.number_integer);
+        }
+        else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float)
+        {
+            return static_cast<number_float_t>(lhs.m_value.number_unsigned) < rhs.m_value.number_float;
+        }
+        else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned)
+        {
+            return lhs.m_value.number_float < static_cast<number_float_t>(rhs.m_value.number_unsigned);
+        }
+        else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned)
+        {
+            return lhs.m_value.number_integer < static_cast<number_integer_t>(rhs.m_value.number_unsigned);
+        }
+        else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer)
+        {
+            return static_cast<number_integer_t>(lhs.m_value.number_unsigned) < rhs.m_value.number_integer;
+        }
+
+        // We only reach this line if we cannot compare values. In that case,
+        // we compare types. Note we have to call the operator explicitly,
+        // because MSVC has problems otherwise.
+        return operator<(lhs_type, rhs_type);
+    }
+
+    /*!
+    @brief comparison: less than
+    @copydoc operator<(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator<(const_reference lhs, ScalarType rhs) noexcept
+    {
+        return lhs < basic_json(rhs);
+    }
+
+    /*!
+    @brief comparison: less than
+    @copydoc operator<(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator<(ScalarType lhs, const_reference rhs) noexcept
+    {
+        return basic_json(lhs) < rhs;
+    }
+
+    /*!
+    @brief comparison: less than or equal
+
+    Compares whether one JSON value @a lhs is less than or equal to another
+    JSON value by calculating `not (rhs < lhs)`.
+
+    @param[in] lhs  first JSON value to consider
+    @param[in] rhs  second JSON value to consider
+    @return whether @a lhs is less than or equal to @a rhs
+
+    @complexity Linear.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @liveexample{The example demonstrates comparing several JSON
+    types.,operator__greater}
+
+    @since version 1.0.0
+    */
+    friend bool operator<=(const_reference lhs, const_reference rhs) noexcept
+    {
+        return !(rhs < lhs);
+    }
+
+    /*!
+    @brief comparison: less than or equal
+    @copydoc operator<=(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator<=(const_reference lhs, ScalarType rhs) noexcept
+    {
+        return lhs <= basic_json(rhs);
+    }
+
+    /*!
+    @brief comparison: less than or equal
+    @copydoc operator<=(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator<=(ScalarType lhs, const_reference rhs) noexcept
+    {
+        return basic_json(lhs) <= rhs;
+    }
+
+    /*!
+    @brief comparison: greater than
+
+    Compares whether one JSON value @a lhs is greater than another
+    JSON value by calculating `not (lhs <= rhs)`.
+
+    @param[in] lhs  first JSON value to consider
+    @param[in] rhs  second JSON value to consider
+    @return whether @a lhs is greater than to @a rhs
+
+    @complexity Linear.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @liveexample{The example demonstrates comparing several JSON
+    types.,operator__lessequal}
+
+    @since version 1.0.0
+    */
+    friend bool operator>(const_reference lhs, const_reference rhs) noexcept
+    {
+        return !(lhs <= rhs);
+    }
+
+    /*!
+    @brief comparison: greater than
+    @copydoc operator>(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator>(const_reference lhs, ScalarType rhs) noexcept
+    {
+        return lhs > basic_json(rhs);
+    }
+
+    /*!
+    @brief comparison: greater than
+    @copydoc operator>(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator>(ScalarType lhs, const_reference rhs) noexcept
+    {
+        return basic_json(lhs) > rhs;
+    }
+
+    /*!
+    @brief comparison: greater than or equal
+
+    Compares whether one JSON value @a lhs is greater than or equal to another
+    JSON value by calculating `not (lhs < rhs)`.
+
+    @param[in] lhs  first JSON value to consider
+    @param[in] rhs  second JSON value to consider
+    @return whether @a lhs is greater than or equal to @a rhs
+
+    @complexity Linear.
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @liveexample{The example demonstrates comparing several JSON
+    types.,operator__greaterequal}
+
+    @since version 1.0.0
+    */
+    friend bool operator>=(const_reference lhs, const_reference rhs) noexcept
+    {
+        return !(lhs < rhs);
+    }
+
+    /*!
+    @brief comparison: greater than or equal
+    @copydoc operator>=(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator>=(const_reference lhs, ScalarType rhs) noexcept
+    {
+        return lhs >= basic_json(rhs);
+    }
+
+    /*!
+    @brief comparison: greater than or equal
+    @copydoc operator>=(const_reference, const_reference)
+    */
+    template<typename ScalarType, typename std::enable_if<
+                 std::is_scalar<ScalarType>::value, int>::type = 0>
+    friend bool operator>=(ScalarType lhs, const_reference rhs) noexcept
+    {
+        return basic_json(lhs) >= rhs;
+    }
+
+    /// @}
+
+    ///////////////////
+    // serialization //
+    ///////////////////
+
+    /// @name serialization
+    /// @{
+#ifndef JSON_NO_IO
+    /*!
+    @brief serialize to stream
+
+    Serialize the given JSON value @a j to the output stream @a o. The JSON
+    value will be serialized using the @ref dump member function.
+
+    - The indentation of the output can be controlled with the member variable
+      `width` of the output stream @a o. For instance, using the manipulator
+      `std::setw(4)` on @a o sets the indentation level to `4` and the
+      serialization result is the same as calling `dump(4)`.
+
+    - The indentation character can be controlled with the member variable
+      `fill` of the output stream @a o. For instance, the manipulator
+      `std::setfill('\\t')` sets indentation to use a tab character rather than
+      the default space character.
+
+    @param[in,out] o  stream to serialize to
+    @param[in] j  JSON value to serialize
+
+    @return the stream @a o
+
+    @throw type_error.316 if a string stored inside the JSON value is not
+                          UTF-8 encoded
+
+    @complexity Linear.
+
+    @liveexample{The example below shows the serialization with different
+    parameters to `width` to adjust the indentation level.,operator_serialize}
+
+    @since version 1.0.0; indentation character added in version 3.0.0
+    */
+    friend std::ostream& operator<<(std::ostream& o, const basic_json& j)
+    {
+        // read width member and use it as indentation parameter if nonzero
+        const bool pretty_print = o.width() > 0;
+        const auto indentation = pretty_print ? o.width() : 0;
+
+        // reset width to 0 for subsequent calls to this stream
+        o.width(0);
+
+        // do the actual serialization
+        serializer s(detail::output_adapter<char>(o), o.fill());
+        s.dump(j, pretty_print, false, static_cast<unsigned int>(indentation));
+        return o;
+    }
+
+    /*!
+    @brief serialize to stream
+    @deprecated This stream operator is deprecated and will be removed in
+                future 4.0.0 of the library. Please use
+                @ref operator<<(std::ostream&, const basic_json&)
+                instead; that is, replace calls like `j >> o;` with `o << j;`.
+    @since version 1.0.0; deprecated since version 3.0.0
+    */
+    JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator<<(std::ostream&, const basic_json&))
+    friend std::ostream& operator>>(const basic_json& j, std::ostream& o)
+    {
+        return o << j;
+    }
+#endif  // JSON_NO_IO
+    /// @}
+
+
+    /////////////////////
+    // deserialization //
+    /////////////////////
+
+    /// @name deserialization
+    /// @{
+
+    /*!
+    @brief deserialize from a compatible input
+
+    @tparam InputType A compatible input, for instance
+    - an std::istream object
+    - a FILE pointer
+    - a C-style array of characters
+    - a pointer to a null-terminated string of single byte characters
+    - an object obj for which begin(obj) and end(obj) produces a valid pair of
+      iterators.
+
+    @param[in] i  input to read from
+    @param[in] cb  a parser callback function of type @ref parser_callback_t
+    which is used to control the deserialization by filtering unwanted values
+    (optional)
+    @param[in] allow_exceptions  whether to throw exceptions in case of a
+    parse error (optional, true by default)
+    @param[in] ignore_comments  whether comments should be ignored and treated
+    like whitespace (true) or yield a parse error (true); (optional, false by
+    default)
+
+    @return deserialized JSON value; in case of a parse error and
+            @a allow_exceptions set to `false`, the return value will be
+            value_t::discarded.
+
+    @throw parse_error.101 if a parse error occurs; example: `""unexpected end
+    of input; expected string literal""`
+    @throw parse_error.102 if to_unicode fails or surrogate error
+    @throw parse_error.103 if to_unicode fails
+
+    @complexity Linear in the length of the input. The parser is a predictive
+    LL(1) parser. The complexity can be higher if the parser callback function
+    @a cb or reading from the input @a i has a super-linear complexity.
+
+    @note A UTF-8 byte order mark is silently ignored.
+
+    @liveexample{The example below demonstrates the `parse()` function reading
+    from an array.,parse__array__parser_callback_t}
+
+    @liveexample{The example below demonstrates the `parse()` function with
+    and without callback function.,parse__string__parser_callback_t}
+
+    @liveexample{The example below demonstrates the `parse()` function with
+    and without callback function.,parse__istream__parser_callback_t}
+
+    @liveexample{The example below demonstrates the `parse()` function reading
+    from a contiguous container.,parse__contiguouscontainer__parser_callback_t}
+
+    @since version 2.0.3 (contiguous containers); version 3.9.0 allowed to
+    ignore comments.
+    */
+    template<typename InputType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json parse(InputType&& i,
+                            const parser_callback_t cb = nullptr,
+                            const bool allow_exceptions = true,
+                            const bool ignore_comments = false)
+    {
+        basic_json result;
+        parser(detail::input_adapter(std::forward<InputType>(i)), cb, allow_exceptions, ignore_comments).parse(true, result);
+        return result;
+    }
+
+    /*!
+    @brief deserialize from a pair of character iterators
+
+    The value_type of the iterator must be a integral type with size of 1, 2 or
+    4 bytes, which will be interpreted respectively as UTF-8, UTF-16 and UTF-32.
+
+    @param[in] first iterator to start of character range
+    @param[in] last  iterator to end of character range
+    @param[in] cb  a parser callback function of type @ref parser_callback_t
+    which is used to control the deserialization by filtering unwanted values
+    (optional)
+    @param[in] allow_exceptions  whether to throw exceptions in case of a
+    parse error (optional, true by default)
+    @param[in] ignore_comments  whether comments should be ignored and treated
+    like whitespace (true) or yield a parse error (true); (optional, false by
+    default)
+
+    @return deserialized JSON value; in case of a parse error and
+            @a allow_exceptions set to `false`, the return value will be
+            value_t::discarded.
+
+    @throw parse_error.101 if a parse error occurs; example: `""unexpected end
+    of input; expected string literal""`
+    @throw parse_error.102 if to_unicode fails or surrogate error
+    @throw parse_error.103 if to_unicode fails
+    */
+    template<typename IteratorType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json parse(IteratorType first,
+                            IteratorType last,
+                            const parser_callback_t cb = nullptr,
+                            const bool allow_exceptions = true,
+                            const bool ignore_comments = false)
+    {
+        basic_json result;
+        parser(detail::input_adapter(std::move(first), std::move(last)), cb, allow_exceptions, ignore_comments).parse(true, result);
+        return result;
+    }
+
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, parse(ptr, ptr + len))
+    static basic_json parse(detail::span_input_adapter&& i,
+                            const parser_callback_t cb = nullptr,
+                            const bool allow_exceptions = true,
+                            const bool ignore_comments = false)
+    {
+        basic_json result;
+        parser(i.get(), cb, allow_exceptions, ignore_comments).parse(true, result);
+        return result;
+    }
+
+    /*!
+    @brief check if the input is valid JSON
+
+    Unlike the @ref parse(InputType&&, const parser_callback_t,const bool)
+    function, this function neither throws an exception in case of invalid JSON
+    input (i.e., a parse error) nor creates diagnostic information.
+
+    @tparam InputType A compatible input, for instance
+    - an std::istream object
+    - a FILE pointer
+    - a C-style array of characters
+    - a pointer to a null-terminated string of single byte characters
+    - an object obj for which begin(obj) and end(obj) produces a valid pair of
+      iterators.
+
+    @param[in] i input to read from
+    @param[in] ignore_comments  whether comments should be ignored and treated
+    like whitespace (true) or yield a parse error (true); (optional, false by
+    default)
+
+    @return Whether the input read from @a i is valid JSON.
+
+    @complexity Linear in the length of the input. The parser is a predictive
+    LL(1) parser.
+
+    @note A UTF-8 byte order mark is silently ignored.
+
+    @liveexample{The example below demonstrates the `accept()` function reading
+    from a string.,accept__string}
+    */
+    template<typename InputType>
+    static bool accept(InputType&& i,
+                       const bool ignore_comments = false)
+    {
+        return parser(detail::input_adapter(std::forward<InputType>(i)), nullptr, false, ignore_comments).accept(true);
+    }
+
+    template<typename IteratorType>
+    static bool accept(IteratorType first, IteratorType last,
+                       const bool ignore_comments = false)
+    {
+        return parser(detail::input_adapter(std::move(first), std::move(last)), nullptr, false, ignore_comments).accept(true);
+    }
+
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, accept(ptr, ptr + len))
+    static bool accept(detail::span_input_adapter&& i,
+                       const bool ignore_comments = false)
+    {
+        return parser(i.get(), nullptr, false, ignore_comments).accept(true);
+    }
+
+    /*!
+    @brief generate SAX events
+
+    The SAX event lister must follow the interface of @ref json_sax.
+
+    This function reads from a compatible input. Examples are:
+    - an std::istream object
+    - a FILE pointer
+    - a C-style array of characters
+    - a pointer to a null-terminated string of single byte characters
+    - an object obj for which begin(obj) and end(obj) produces a valid pair of
+      iterators.
+
+    @param[in] i  input to read from
+    @param[in,out] sax  SAX event listener
+    @param[in] format  the format to parse (JSON, CBOR, MessagePack, or UBJSON)
+    @param[in] strict  whether the input has to be consumed completely
+    @param[in] ignore_comments  whether comments should be ignored and treated
+    like whitespace (true) or yield a parse error (true); (optional, false by
+    default); only applies to the JSON file format.
+
+    @return return value of the last processed SAX event
+
+    @throw parse_error.101 if a parse error occurs; example: `""unexpected end
+    of input; expected string literal""`
+    @throw parse_error.102 if to_unicode fails or surrogate error
+    @throw parse_error.103 if to_unicode fails
+
+    @complexity Linear in the length of the input. The parser is a predictive
+    LL(1) parser. The complexity can be higher if the SAX consumer @a sax has
+    a super-linear complexity.
+
+    @note A UTF-8 byte order mark is silently ignored.
+
+    @liveexample{The example below demonstrates the `sax_parse()` function
+    reading from string and processing the events with a user-defined SAX
+    event consumer.,sax_parse}
+
+    @since version 3.2.0
+    */
+    template <typename InputType, typename SAX>
+    JSON_HEDLEY_NON_NULL(2)
+    static bool sax_parse(InputType&& i, SAX* sax,
+                          input_format_t format = input_format_t::json,
+                          const bool strict = true,
+                          const bool ignore_comments = false)
+    {
+        auto ia = detail::input_adapter(std::forward<InputType>(i));
+        return format == input_format_t::json
+               ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict)
+               : detail::binary_reader<basic_json, decltype(ia), SAX>(std::move(ia)).sax_parse(format, sax, strict);
+    }
+
+    template<class IteratorType, class SAX>
+    JSON_HEDLEY_NON_NULL(3)
+    static bool sax_parse(IteratorType first, IteratorType last, SAX* sax,
+                          input_format_t format = input_format_t::json,
+                          const bool strict = true,
+                          const bool ignore_comments = false)
+    {
+        auto ia = detail::input_adapter(std::move(first), std::move(last));
+        return format == input_format_t::json
+               ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict)
+               : detail::binary_reader<basic_json, decltype(ia), SAX>(std::move(ia)).sax_parse(format, sax, strict);
+    }
+
+    template <typename SAX>
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, sax_parse(ptr, ptr + len, ...))
+    JSON_HEDLEY_NON_NULL(2)
+    static bool sax_parse(detail::span_input_adapter&& i, SAX* sax,
+                          input_format_t format = input_format_t::json,
+                          const bool strict = true,
+                          const bool ignore_comments = false)
+    {
+        auto ia = i.get();
+        return format == input_format_t::json
+               // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
+               ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict)
+               // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
+               : detail::binary_reader<basic_json, decltype(ia), SAX>(std::move(ia)).sax_parse(format, sax, strict);
+    }
+#ifndef JSON_NO_IO
+    /*!
+    @brief deserialize from stream
+    @deprecated This stream operator is deprecated and will be removed in
+                version 4.0.0 of the library. Please use
+                @ref operator>>(std::istream&, basic_json&)
+                instead; that is, replace calls like `j << i;` with `i >> j;`.
+    @since version 1.0.0; deprecated since version 3.0.0
+    */
+    JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator>>(std::istream&, basic_json&))
+    friend std::istream& operator<<(basic_json& j, std::istream& i)
+    {
+        return operator>>(i, j);
+    }
+
+    /*!
+    @brief deserialize from stream
+
+    Deserializes an input stream to a JSON value.
+
+    @param[in,out] i  input stream to read a serialized JSON value from
+    @param[in,out] j  JSON value to write the deserialized input to
+
+    @throw parse_error.101 in case of an unexpected token
+    @throw parse_error.102 if to_unicode fails or surrogate error
+    @throw parse_error.103 if to_unicode fails
+
+    @complexity Linear in the length of the input. The parser is a predictive
+    LL(1) parser.
+
+    @note A UTF-8 byte order mark is silently ignored.
+
+    @liveexample{The example below shows how a JSON value is constructed by
+    reading a serialization from a stream.,operator_deserialize}
+
+    @sa parse(std::istream&, const parser_callback_t) for a variant with a
+    parser callback function to filter values while parsing
+
+    @since version 1.0.0
+    */
+    friend std::istream& operator>>(std::istream& i, basic_json& j)
+    {
+        parser(detail::input_adapter(i)).parse(false, j);
+        return i;
+    }
+#endif  // JSON_NO_IO
+    /// @}
+
+    ///////////////////////////
+    // convenience functions //
+    ///////////////////////////
+
+    /*!
+    @brief return the type as string
+
+    Returns the type name as string to be used in error messages - usually to
+    indicate that a function was called on a wrong JSON type.
+
+    @return a string representation of a the @a m_type member:
+            Value type  | return value
+            ----------- | -------------
+            null        | `"null"`
+            boolean     | `"boolean"`
+            string      | `"string"`
+            number      | `"number"` (for all number types)
+            object      | `"object"`
+            array       | `"array"`
+            binary      | `"binary"`
+            discarded   | `"discarded"`
+
+    @exceptionsafety No-throw guarantee: this function never throws exceptions.
+
+    @complexity Constant.
+
+    @liveexample{The following code exemplifies `type_name()` for all JSON
+    types.,type_name}
+
+    @sa see @ref type() -- return the type of the JSON value
+    @sa see @ref operator value_t() -- return the type of the JSON value (implicit)
+
+    @since version 1.0.0, public since 2.1.0, `const char*` and `noexcept`
+    since 3.0.0
+    */
+    JSON_HEDLEY_RETURNS_NON_NULL
+    const char* type_name() const noexcept
+    {
+        {
+            switch (m_type)
+            {
+                case value_t::null:
+                    return "null";
+                case value_t::object:
+                    return "object";
+                case value_t::array:
+                    return "array";
+                case value_t::string:
+                    return "string";
+                case value_t::boolean:
+                    return "boolean";
+                case value_t::binary:
+                    return "binary";
+                case value_t::discarded:
+                    return "discarded";
+                case value_t::number_integer:
+                case value_t::number_unsigned:
+                case value_t::number_float:
+                default:
+                    return "number";
+            }
+        }
+    }
+
+
+  JSON_PRIVATE_UNLESS_TESTED:
+    //////////////////////
+    // member variables //
+    //////////////////////
+
+    /// the type of the current element
+    value_t m_type = value_t::null;
+
+    /// the value of the current element
+    json_value m_value = {};
+
+#if JSON_DIAGNOSTICS
+    /// a pointer to a parent value (for debugging purposes)
+    basic_json* m_parent = nullptr;
+#endif
+
+    //////////////////////////////////////////
+    // binary serialization/deserialization //
+    //////////////////////////////////////////
+
+    /// @name binary serialization/deserialization support
+    /// @{
+
+  public:
+    /*!
+    @brief create a CBOR serialization of a given JSON value
+
+    Serializes a given JSON value @a j to a byte vector using the CBOR (Concise
+    Binary Object Representation) serialization format. CBOR is a binary
+    serialization format which aims to be more compact than JSON itself, yet
+    more efficient to parse.
+
+    The library uses the following mapping from JSON values types to
+    CBOR types according to the CBOR specification (RFC 7049):
+
+    JSON value type | value/range                                | CBOR type                          | first byte
+    --------------- | ------------------------------------------ | ---------------------------------- | ---------------
+    null            | `null`                                     | Null                               | 0xF6
+    boolean         | `true`                                     | True                               | 0xF5
+    boolean         | `false`                                    | False                              | 0xF4
+    number_integer  | -9223372036854775808..-2147483649          | Negative integer (8 bytes follow)  | 0x3B
+    number_integer  | -2147483648..-32769                        | Negative integer (4 bytes follow)  | 0x3A
+    number_integer  | -32768..-129                               | Negative integer (2 bytes follow)  | 0x39
+    number_integer  | -128..-25                                  | Negative integer (1 byte follow)   | 0x38
+    number_integer  | -24..-1                                    | Negative integer                   | 0x20..0x37
+    number_integer  | 0..23                                      | Integer                            | 0x00..0x17
+    number_integer  | 24..255                                    | Unsigned integer (1 byte follow)   | 0x18
+    number_integer  | 256..65535                                 | Unsigned integer (2 bytes follow)  | 0x19
+    number_integer  | 65536..4294967295                          | Unsigned integer (4 bytes follow)  | 0x1A
+    number_integer  | 4294967296..18446744073709551615           | Unsigned integer (8 bytes follow)  | 0x1B
+    number_unsigned | 0..23                                      | Integer                            | 0x00..0x17
+    number_unsigned | 24..255                                    | Unsigned integer (1 byte follow)   | 0x18
+    number_unsigned | 256..65535                                 | Unsigned integer (2 bytes follow)  | 0x19
+    number_unsigned | 65536..4294967295                          | Unsigned integer (4 bytes follow)  | 0x1A
+    number_unsigned | 4294967296..18446744073709551615           | Unsigned integer (8 bytes follow)  | 0x1B
+    number_float    | *any value representable by a float*       | Single-Precision Float             | 0xFA
+    number_float    | *any value NOT representable by a float*   | Double-Precision Float             | 0xFB
+    string          | *length*: 0..23                            | UTF-8 string                       | 0x60..0x77
+    string          | *length*: 23..255                          | UTF-8 string (1 byte follow)       | 0x78
+    string          | *length*: 256..65535                       | UTF-8 string (2 bytes follow)      | 0x79
+    string          | *length*: 65536..4294967295                | UTF-8 string (4 bytes follow)      | 0x7A
+    string          | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow)      | 0x7B
+    array           | *size*: 0..23                              | array                              | 0x80..0x97
+    array           | *size*: 23..255                            | array (1 byte follow)              | 0x98
+    array           | *size*: 256..65535                         | array (2 bytes follow)             | 0x99
+    array           | *size*: 65536..4294967295                  | array (4 bytes follow)             | 0x9A
+    array           | *size*: 4294967296..18446744073709551615   | array (8 bytes follow)             | 0x9B
+    object          | *size*: 0..23                              | map                                | 0xA0..0xB7
+    object          | *size*: 23..255                            | map (1 byte follow)                | 0xB8
+    object          | *size*: 256..65535                         | map (2 bytes follow)               | 0xB9
+    object          | *size*: 65536..4294967295                  | map (4 bytes follow)               | 0xBA
+    object          | *size*: 4294967296..18446744073709551615   | map (8 bytes follow)               | 0xBB
+    binary          | *size*: 0..23                              | byte string                        | 0x40..0x57
+    binary          | *size*: 23..255                            | byte string (1 byte follow)        | 0x58
+    binary          | *size*: 256..65535                         | byte string (2 bytes follow)       | 0x59
+    binary          | *size*: 65536..4294967295                  | byte string (4 bytes follow)       | 0x5A
+    binary          | *size*: 4294967296..18446744073709551615   | byte string (8 bytes follow)       | 0x5B
+
+    Binary values with subtype are mapped to tagged values (0xD8..0xDB)
+    depending on the subtype, followed by a byte string, see "binary" cells
+    in the table above.
+
+    @note The mapping is **complete** in the sense that any JSON value type
+          can be converted to a CBOR value.
+
+    @note If NaN or Infinity are stored inside a JSON number, they are
+          serialized properly. This behavior differs from the @ref dump()
+          function which serializes NaN or Infinity to `null`.
+
+    @note The following CBOR types are not used in the conversion:
+          - UTF-8 strings terminated by "break" (0x7F)
+          - arrays terminated by "break" (0x9F)
+          - maps terminated by "break" (0xBF)
+          - byte strings terminated by "break" (0x5F)
+          - date/time (0xC0..0xC1)
+          - bignum (0xC2..0xC3)
+          - decimal fraction (0xC4)
+          - bigfloat (0xC5)
+          - expected conversions (0xD5..0xD7)
+          - simple values (0xE0..0xF3, 0xF8)
+          - undefined (0xF7)
+          - half-precision floats (0xF9)
+          - break (0xFF)
+
+    @param[in] j  JSON value to serialize
+    @return CBOR serialization as byte vector
+
+    @complexity Linear in the size of the JSON value @a j.
+
+    @liveexample{The example shows the serialization of a JSON value to a byte
+    vector in CBOR format.,to_cbor}
+
+    @sa http://cbor.io
+    @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
+        analogous deserialization
+    @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
+    @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
+             related UBJSON format
+
+    @since version 2.0.9; compact representation of floating-point numbers
+           since version 3.8.0
+    */
+    static std::vector<std::uint8_t> to_cbor(const basic_json& j)
+    {
+        std::vector<std::uint8_t> result;
+        to_cbor(j, result);
+        return result;
+    }
+
+    static void to_cbor(const basic_json& j, detail::output_adapter<std::uint8_t> o)
+    {
+        binary_writer<std::uint8_t>(o).write_cbor(j);
+    }
+
+    static void to_cbor(const basic_json& j, detail::output_adapter<char> o)
+    {
+        binary_writer<char>(o).write_cbor(j);
+    }
+
+    /*!
+    @brief create a MessagePack serialization of a given JSON value
+
+    Serializes a given JSON value @a j to a byte vector using the MessagePack
+    serialization format. MessagePack is a binary serialization format which
+    aims to be more compact than JSON itself, yet more efficient to parse.
+
+    The library uses the following mapping from JSON values types to
+    MessagePack types according to the MessagePack specification:
+
+    JSON value type | value/range                       | MessagePack type | first byte
+    --------------- | --------------------------------- | ---------------- | ----------
+    null            | `null`                            | nil              | 0xC0
+    boolean         | `true`                            | true             | 0xC3
+    boolean         | `false`                           | false            | 0xC2
+    number_integer  | -9223372036854775808..-2147483649 | int64            | 0xD3
+    number_integer  | -2147483648..-32769               | int32            | 0xD2
+    number_integer  | -32768..-129                      | int16            | 0xD1
+    number_integer  | -128..-33                         | int8             | 0xD0
+    number_integer  | -32..-1                           | negative fixint  | 0xE0..0xFF
+    number_integer  | 0..127                            | positive fixint  | 0x00..0x7F
+    number_integer  | 128..255                          | uint 8           | 0xCC
+    number_integer  | 256..65535                        | uint 16          | 0xCD
+    number_integer  | 65536..4294967295                 | uint 32          | 0xCE
+    number_integer  | 4294967296..18446744073709551615  | uint 64          | 0xCF
+    number_unsigned | 0..127                            | positive fixint  | 0x00..0x7F
+    number_unsigned | 128..255                          | uint 8           | 0xCC
+    number_unsigned | 256..65535                        | uint 16          | 0xCD
+    number_unsigned | 65536..4294967295                 | uint 32          | 0xCE
+    number_unsigned | 4294967296..18446744073709551615  | uint 64          | 0xCF
+    number_float    | *any value representable by a float*     | float 32 | 0xCA
+    number_float    | *any value NOT representable by a float* | float 64 | 0xCB
+    string          | *length*: 0..31                   | fixstr           | 0xA0..0xBF
+    string          | *length*: 32..255                 | str 8            | 0xD9
+    string          | *length*: 256..65535              | str 16           | 0xDA
+    string          | *length*: 65536..4294967295       | str 32           | 0xDB
+    array           | *size*: 0..15                     | fixarray         | 0x90..0x9F
+    array           | *size*: 16..65535                 | array 16         | 0xDC
+    array           | *size*: 65536..4294967295         | array 32         | 0xDD
+    object          | *size*: 0..15                     | fix map          | 0x80..0x8F
+    object          | *size*: 16..65535                 | map 16           | 0xDE
+    object          | *size*: 65536..4294967295         | map 32           | 0xDF
+    binary          | *size*: 0..255                    | bin 8            | 0xC4
+    binary          | *size*: 256..65535                | bin 16           | 0xC5
+    binary          | *size*: 65536..4294967295         | bin 32           | 0xC6
+
+    @note The mapping is **complete** in the sense that any JSON value type
+          can be converted to a MessagePack value.
+
+    @note The following values can **not** be converted to a MessagePack value:
+          - strings with more than 4294967295 bytes
+          - byte strings with more than 4294967295 bytes
+          - arrays with more than 4294967295 elements
+          - objects with more than 4294967295 elements
+
+    @note Any MessagePack output created @ref to_msgpack can be successfully
+          parsed by @ref from_msgpack.
+
+    @note If NaN or Infinity are stored inside a JSON number, they are
+          serialized properly. This behavior differs from the @ref dump()
+          function which serializes NaN or Infinity to `null`.
+
+    @param[in] j  JSON value to serialize
+    @return MessagePack serialization as byte vector
+
+    @complexity Linear in the size of the JSON value @a j.
+
+    @liveexample{The example shows the serialization of a JSON value to a byte
+    vector in MessagePack format.,to_msgpack}
+
+    @sa http://msgpack.org
+    @sa see @ref from_msgpack for the analogous deserialization
+    @sa see @ref to_cbor(const basic_json& for the related CBOR format
+    @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
+             related UBJSON format
+
+    @since version 2.0.9
+    */
+    static std::vector<std::uint8_t> to_msgpack(const basic_json& j)
+    {
+        std::vector<std::uint8_t> result;
+        to_msgpack(j, result);
+        return result;
+    }
+
+    static void to_msgpack(const basic_json& j, detail::output_adapter<std::uint8_t> o)
+    {
+        binary_writer<std::uint8_t>(o).write_msgpack(j);
+    }
+
+    static void to_msgpack(const basic_json& j, detail::output_adapter<char> o)
+    {
+        binary_writer<char>(o).write_msgpack(j);
+    }
+
+    /*!
+    @brief create a UBJSON serialization of a given JSON value
+
+    Serializes a given JSON value @a j to a byte vector using the UBJSON
+    (Universal Binary JSON) serialization format. UBJSON aims to be more compact
+    than JSON itself, yet more efficient to parse.
+
+    The library uses the following mapping from JSON values types to
+    UBJSON types according to the UBJSON specification:
+
+    JSON value type | value/range                       | UBJSON type | marker
+    --------------- | --------------------------------- | ----------- | ------
+    null            | `null`                            | null        | `Z`
+    boolean         | `true`                            | true        | `T`
+    boolean         | `false`                           | false       | `F`
+    number_integer  | -9223372036854775808..-2147483649 | int64       | `L`
+    number_integer  | -2147483648..-32769               | int32       | `l`
+    number_integer  | -32768..-129                      | int16       | `I`
+    number_integer  | -128..127                         | int8        | `i`
+    number_integer  | 128..255                          | uint8       | `U`
+    number_integer  | 256..32767                        | int16       | `I`
+    number_integer  | 32768..2147483647                 | int32       | `l`
+    number_integer  | 2147483648..9223372036854775807   | int64       | `L`
+    number_unsigned | 0..127                            | int8        | `i`
+    number_unsigned | 128..255                          | uint8       | `U`
+    number_unsigned | 256..32767                        | int16       | `I`
+    number_unsigned | 32768..2147483647                 | int32       | `l`
+    number_unsigned | 2147483648..9223372036854775807   | int64       | `L`
+    number_unsigned | 2147483649..18446744073709551615  | high-precision | `H`
+    number_float    | *any value*                       | float64     | `D`
+    string          | *with shortest length indicator*  | string      | `S`
+    array           | *see notes on optimized format*   | array       | `[`
+    object          | *see notes on optimized format*   | map         | `{`
+
+    @note The mapping is **complete** in the sense that any JSON value type
+          can be converted to a UBJSON value.
+
+    @note The following values can **not** be converted to a UBJSON value:
+          - strings with more than 9223372036854775807 bytes (theoretical)
+
+    @note The following markers are not used in the conversion:
+          - `Z`: no-op values are not created.
+          - `C`: single-byte strings are serialized with `S` markers.
+
+    @note Any UBJSON output created @ref to_ubjson can be successfully parsed
+          by @ref from_ubjson.
+
+    @note If NaN or Infinity are stored inside a JSON number, they are
+          serialized properly. This behavior differs from the @ref dump()
+          function which serializes NaN or Infinity to `null`.
+
+    @note The optimized formats for containers are supported: Parameter
+          @a use_size adds size information to the beginning of a container and
+          removes the closing marker. Parameter @a use_type further checks
+          whether all elements of a container have the same type and adds the
+          type marker to the beginning of the container. The @a use_type
+          parameter must only be used together with @a use_size = true. Note
+          that @a use_size = true alone may result in larger representations -
+          the benefit of this parameter is that the receiving side is
+          immediately informed on the number of elements of the container.
+
+    @note If the JSON data contains the binary type, the value stored is a list
+          of integers, as suggested by the UBJSON documentation.  In particular,
+          this means that serialization and the deserialization of a JSON
+          containing binary values into UBJSON and back will result in a
+          different JSON object.
+
+    @param[in] j  JSON value to serialize
+    @param[in] use_size  whether to add size annotations to container types
+    @param[in] use_type  whether to add type annotations to container types
+                         (must be combined with @a use_size = true)
+    @return UBJSON serialization as byte vector
+
+    @complexity Linear in the size of the JSON value @a j.
+
+    @liveexample{The example shows the serialization of a JSON value to a byte
+    vector in UBJSON format.,to_ubjson}
+
+    @sa http://ubjson.org
+    @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
+        analogous deserialization
+    @sa see @ref to_cbor(const basic_json& for the related CBOR format
+    @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
+
+    @since version 3.1.0
+    */
+    static std::vector<std::uint8_t> to_ubjson(const basic_json& j,
+            const bool use_size = false,
+            const bool use_type = false)
+    {
+        std::vector<std::uint8_t> result;
+        to_ubjson(j, result, use_size, use_type);
+        return result;
+    }
+
+    static void to_ubjson(const basic_json& j, detail::output_adapter<std::uint8_t> o,
+                          const bool use_size = false, const bool use_type = false)
+    {
+        binary_writer<std::uint8_t>(o).write_ubjson(j, use_size, use_type);
+    }
+
+    static void to_ubjson(const basic_json& j, detail::output_adapter<char> o,
+                          const bool use_size = false, const bool use_type = false)
+    {
+        binary_writer<char>(o).write_ubjson(j, use_size, use_type);
+    }
+
+
+    /*!
+    @brief Serializes the given JSON object `j` to BSON and returns a vector
+           containing the corresponding BSON-representation.
+
+    BSON (Binary JSON) is a binary format in which zero or more ordered key/value pairs are
+    stored as a single entity (a so-called document).
+
+    The library uses the following mapping from JSON values types to BSON types:
+
+    JSON value type | value/range                       | BSON type   | marker
+    --------------- | --------------------------------- | ----------- | ------
+    null            | `null`                            | null        | 0x0A
+    boolean         | `true`, `false`                   | boolean     | 0x08
+    number_integer  | -9223372036854775808..-2147483649 | int64       | 0x12
+    number_integer  | -2147483648..2147483647           | int32       | 0x10
+    number_integer  | 2147483648..9223372036854775807   | int64       | 0x12
+    number_unsigned | 0..2147483647                     | int32       | 0x10
+    number_unsigned | 2147483648..9223372036854775807   | int64       | 0x12
+    number_unsigned | 9223372036854775808..18446744073709551615| --   | --
+    number_float    | *any value*                       | double      | 0x01
+    string          | *any value*                       | string      | 0x02
+    array           | *any value*                       | document    | 0x04
+    object          | *any value*                       | document    | 0x03
+    binary          | *any value*                       | binary      | 0x05
+
+    @warning The mapping is **incomplete**, since only JSON-objects (and things
+    contained therein) can be serialized to BSON.
+    Also, integers larger than 9223372036854775807 cannot be serialized to BSON,
+    and the keys may not contain U+0000, since they are serialized a
+    zero-terminated c-strings.
+
+    @throw out_of_range.407  if `j.is_number_unsigned() && j.get<std::uint64_t>() > 9223372036854775807`
+    @throw out_of_range.409  if a key in `j` contains a NULL (U+0000)
+    @throw type_error.317    if `!j.is_object()`
+
+    @pre The input `j` is required to be an object: `j.is_object() == true`.
+
+    @note Any BSON output created via @ref to_bson can be successfully parsed
+          by @ref from_bson.
+
+    @param[in] j  JSON value to serialize
+    @return BSON serialization as byte vector
+
+    @complexity Linear in the size of the JSON value @a j.
+
+    @liveexample{The example shows the serialization of a JSON value to a byte
+    vector in BSON format.,to_bson}
+
+    @sa http://bsonspec.org/spec.html
+    @sa see @ref from_bson(detail::input_adapter&&, const bool strict) for the
+        analogous deserialization
+    @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
+             related UBJSON format
+    @sa see @ref to_cbor(const basic_json&) for the related CBOR format
+    @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
+    */
+    static std::vector<std::uint8_t> to_bson(const basic_json& j)
+    {
+        std::vector<std::uint8_t> result;
+        to_bson(j, result);
+        return result;
+    }
+
+    /*!
+    @brief Serializes the given JSON object `j` to BSON and forwards the
+           corresponding BSON-representation to the given output_adapter `o`.
+    @param j The JSON object to convert to BSON.
+    @param o The output adapter that receives the binary BSON representation.
+    @pre The input `j` shall be an object: `j.is_object() == true`
+    @sa see @ref to_bson(const basic_json&)
+    */
+    static void to_bson(const basic_json& j, detail::output_adapter<std::uint8_t> o)
+    {
+        binary_writer<std::uint8_t>(o).write_bson(j);
+    }
+
+    /*!
+    @copydoc to_bson(const basic_json&, detail::output_adapter<std::uint8_t>)
+    */
+    static void to_bson(const basic_json& j, detail::output_adapter<char> o)
+    {
+        binary_writer<char>(o).write_bson(j);
+    }
+
+
+    /*!
+    @brief create a JSON value from an input in CBOR format
+
+    Deserializes a given input @a i to a JSON value using the CBOR (Concise
+    Binary Object Representation) serialization format.
+
+    The library maps CBOR types to JSON value types as follows:
+
+    CBOR type              | JSON value type | first byte
+    ---------------------- | --------------- | ----------
+    Integer                | number_unsigned | 0x00..0x17
+    Unsigned integer       | number_unsigned | 0x18
+    Unsigned integer       | number_unsigned | 0x19
+    Unsigned integer       | number_unsigned | 0x1A
+    Unsigned integer       | number_unsigned | 0x1B
+    Negative integer       | number_integer  | 0x20..0x37
+    Negative integer       | number_integer  | 0x38
+    Negative integer       | number_integer  | 0x39
+    Negative integer       | number_integer  | 0x3A
+    Negative integer       | number_integer  | 0x3B
+    Byte string            | binary          | 0x40..0x57
+    Byte string            | binary          | 0x58
+    Byte string            | binary          | 0x59
+    Byte string            | binary          | 0x5A
+    Byte string            | binary          | 0x5B
+    UTF-8 string           | string          | 0x60..0x77
+    UTF-8 string           | string          | 0x78
+    UTF-8 string           | string          | 0x79
+    UTF-8 string           | string          | 0x7A
+    UTF-8 string           | string          | 0x7B
+    UTF-8 string           | string          | 0x7F
+    array                  | array           | 0x80..0x97
+    array                  | array           | 0x98
+    array                  | array           | 0x99
+    array                  | array           | 0x9A
+    array                  | array           | 0x9B
+    array                  | array           | 0x9F
+    map                    | object          | 0xA0..0xB7
+    map                    | object          | 0xB8
+    map                    | object          | 0xB9
+    map                    | object          | 0xBA
+    map                    | object          | 0xBB
+    map                    | object          | 0xBF
+    False                  | `false`         | 0xF4
+    True                   | `true`          | 0xF5
+    Null                   | `null`          | 0xF6
+    Half-Precision Float   | number_float    | 0xF9
+    Single-Precision Float | number_float    | 0xFA
+    Double-Precision Float | number_float    | 0xFB
+
+    @warning The mapping is **incomplete** in the sense that not all CBOR
+             types can be converted to a JSON value. The following CBOR types
+             are not supported and will yield parse errors (parse_error.112):
+             - date/time (0xC0..0xC1)
+             - bignum (0xC2..0xC3)
+             - decimal fraction (0xC4)
+             - bigfloat (0xC5)
+             - expected conversions (0xD5..0xD7)
+             - simple values (0xE0..0xF3, 0xF8)
+             - undefined (0xF7)
+
+    @warning CBOR allows map keys of any type, whereas JSON only allows
+             strings as keys in object values. Therefore, CBOR maps with keys
+             other than UTF-8 strings are rejected (parse_error.113).
+
+    @note Any CBOR output created @ref to_cbor can be successfully parsed by
+          @ref from_cbor.
+
+    @param[in] i  an input in CBOR format convertible to an input adapter
+    @param[in] strict  whether to expect the input to be consumed until EOF
+                       (true by default)
+    @param[in] allow_exceptions  whether to throw exceptions in case of a
+    parse error (optional, true by default)
+    @param[in] tag_handler how to treat CBOR tags (optional, error by default)
+
+    @return deserialized JSON value; in case of a parse error and
+            @a allow_exceptions set to `false`, the return value will be
+            value_t::discarded.
+
+    @throw parse_error.110 if the given input ends prematurely or the end of
+    file was not reached when @a strict was set to true
+    @throw parse_error.112 if unsupported features from CBOR were
+    used in the given input @a v or if the input is not valid CBOR
+    @throw parse_error.113 if a string was expected as map key, but not found
+
+    @complexity Linear in the size of the input @a i.
+
+    @liveexample{The example shows the deserialization of a byte vector in CBOR
+    format to a JSON value.,from_cbor}
+
+    @sa http://cbor.io
+    @sa see @ref to_cbor(const basic_json&) for the analogous serialization
+    @sa see @ref from_msgpack(InputType&&, const bool, const bool) for the
+        related MessagePack format
+    @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
+        related UBJSON format
+
+    @since version 2.0.9; parameter @a start_index since 2.1.1; changed to
+           consume input adapters, removed start_index parameter, and added
+           @a strict parameter since 3.0.0; added @a allow_exceptions parameter
+           since 3.2.0; added @a tag_handler parameter since 3.9.0.
+    */
+    template<typename InputType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_cbor(InputType&& i,
+                                const bool strict = true,
+                                const bool allow_exceptions = true,
+                                const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::forward<InputType>(i));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    /*!
+    @copydoc from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t)
+    */
+    template<typename IteratorType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_cbor(IteratorType first, IteratorType last,
+                                const bool strict = true,
+                                const bool allow_exceptions = true,
+                                const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::move(first), std::move(last));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    template<typename T>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len))
+    static basic_json from_cbor(const T* ptr, std::size_t len,
+                                const bool strict = true,
+                                const bool allow_exceptions = true,
+                                const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
+    {
+        return from_cbor(ptr, ptr + len, strict, allow_exceptions, tag_handler);
+    }
+
+
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len))
+    static basic_json from_cbor(detail::span_input_adapter&& i,
+                                const bool strict = true,
+                                const bool allow_exceptions = true,
+                                const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = i.get();
+        // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    /*!
+    @brief create a JSON value from an input in MessagePack format
+
+    Deserializes a given input @a i to a JSON value using the MessagePack
+    serialization format.
+
+    The library maps MessagePack types to JSON value types as follows:
+
+    MessagePack type | JSON value type | first byte
+    ---------------- | --------------- | ----------
+    positive fixint  | number_unsigned | 0x00..0x7F
+    fixmap           | object          | 0x80..0x8F
+    fixarray         | array           | 0x90..0x9F
+    fixstr           | string          | 0xA0..0xBF
+    nil              | `null`          | 0xC0
+    false            | `false`         | 0xC2
+    true             | `true`          | 0xC3
+    float 32         | number_float    | 0xCA
+    float 64         | number_float    | 0xCB
+    uint 8           | number_unsigned | 0xCC
+    uint 16          | number_unsigned | 0xCD
+    uint 32          | number_unsigned | 0xCE
+    uint 64          | number_unsigned | 0xCF
+    int 8            | number_integer  | 0xD0
+    int 16           | number_integer  | 0xD1
+    int 32           | number_integer  | 0xD2
+    int 64           | number_integer  | 0xD3
+    str 8            | string          | 0xD9
+    str 16           | string          | 0xDA
+    str 32           | string          | 0xDB
+    array 16         | array           | 0xDC
+    array 32         | array           | 0xDD
+    map 16           | object          | 0xDE
+    map 32           | object          | 0xDF
+    bin 8            | binary          | 0xC4
+    bin 16           | binary          | 0xC5
+    bin 32           | binary          | 0xC6
+    ext 8            | binary          | 0xC7
+    ext 16           | binary          | 0xC8
+    ext 32           | binary          | 0xC9
+    fixext 1         | binary          | 0xD4
+    fixext 2         | binary          | 0xD5
+    fixext 4         | binary          | 0xD6
+    fixext 8         | binary          | 0xD7
+    fixext 16        | binary          | 0xD8
+    negative fixint  | number_integer  | 0xE0-0xFF
+
+    @note Any MessagePack output created @ref to_msgpack can be successfully
+          parsed by @ref from_msgpack.
+
+    @param[in] i  an input in MessagePack format convertible to an input
+                  adapter
+    @param[in] strict  whether to expect the input to be consumed until EOF
+                       (true by default)
+    @param[in] allow_exceptions  whether to throw exceptions in case of a
+    parse error (optional, true by default)
+
+    @return deserialized JSON value; in case of a parse error and
+            @a allow_exceptions set to `false`, the return value will be
+            value_t::discarded.
+
+    @throw parse_error.110 if the given input ends prematurely or the end of
+    file was not reached when @a strict was set to true
+    @throw parse_error.112 if unsupported features from MessagePack were
+    used in the given input @a i or if the input is not valid MessagePack
+    @throw parse_error.113 if a string was expected as map key, but not found
+
+    @complexity Linear in the size of the input @a i.
+
+    @liveexample{The example shows the deserialization of a byte vector in
+    MessagePack format to a JSON value.,from_msgpack}
+
+    @sa http://msgpack.org
+    @sa see @ref to_msgpack(const basic_json&) for the analogous serialization
+    @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
+        related CBOR format
+    @sa see @ref from_ubjson(InputType&&, const bool, const bool) for
+        the related UBJSON format
+    @sa see @ref from_bson(InputType&&, const bool, const bool) for
+        the related BSON format
+
+    @since version 2.0.9; parameter @a start_index since 2.1.1; changed to
+           consume input adapters, removed start_index parameter, and added
+           @a strict parameter since 3.0.0; added @a allow_exceptions parameter
+           since 3.2.0
+    */
+    template<typename InputType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_msgpack(InputType&& i,
+                                   const bool strict = true,
+                                   const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::forward<InputType>(i));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    /*!
+    @copydoc from_msgpack(InputType&&, const bool, const bool)
+    */
+    template<typename IteratorType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_msgpack(IteratorType first, IteratorType last,
+                                   const bool strict = true,
+                                   const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::move(first), std::move(last));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+
+    template<typename T>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len))
+    static basic_json from_msgpack(const T* ptr, std::size_t len,
+                                   const bool strict = true,
+                                   const bool allow_exceptions = true)
+    {
+        return from_msgpack(ptr, ptr + len, strict, allow_exceptions);
+    }
+
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len))
+    static basic_json from_msgpack(detail::span_input_adapter&& i,
+                                   const bool strict = true,
+                                   const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = i.get();
+        // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+
+    /*!
+    @brief create a JSON value from an input in UBJSON format
+
+    Deserializes a given input @a i to a JSON value using the UBJSON (Universal
+    Binary JSON) serialization format.
+
+    The library maps UBJSON types to JSON value types as follows:
+
+    UBJSON type | JSON value type                         | marker
+    ----------- | --------------------------------------- | ------
+    no-op       | *no value, next value is read*          | `N`
+    null        | `null`                                  | `Z`
+    false       | `false`                                 | `F`
+    true        | `true`                                  | `T`
+    float32     | number_float                            | `d`
+    float64     | number_float                            | `D`
+    uint8       | number_unsigned                         | `U`
+    int8        | number_integer                          | `i`
+    int16       | number_integer                          | `I`
+    int32       | number_integer                          | `l`
+    int64       | number_integer                          | `L`
+    high-precision number | number_integer, number_unsigned, or number_float - depends on number string | 'H'
+    string      | string                                  | `S`
+    char        | string                                  | `C`
+    array       | array (optimized values are supported)  | `[`
+    object      | object (optimized values are supported) | `{`
+
+    @note The mapping is **complete** in the sense that any UBJSON value can
+          be converted to a JSON value.
+
+    @param[in] i  an input in UBJSON format convertible to an input adapter
+    @param[in] strict  whether to expect the input to be consumed until EOF
+                       (true by default)
+    @param[in] allow_exceptions  whether to throw exceptions in case of a
+    parse error (optional, true by default)
+
+    @return deserialized JSON value; in case of a parse error and
+            @a allow_exceptions set to `false`, the return value will be
+            value_t::discarded.
+
+    @throw parse_error.110 if the given input ends prematurely or the end of
+    file was not reached when @a strict was set to true
+    @throw parse_error.112 if a parse error occurs
+    @throw parse_error.113 if a string could not be parsed successfully
+
+    @complexity Linear in the size of the input @a i.
+
+    @liveexample{The example shows the deserialization of a byte vector in
+    UBJSON format to a JSON value.,from_ubjson}
+
+    @sa http://ubjson.org
+    @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
+             analogous serialization
+    @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
+        related CBOR format
+    @sa see @ref from_msgpack(InputType&&, const bool, const bool) for
+        the related MessagePack format
+    @sa see @ref from_bson(InputType&&, const bool, const bool) for
+        the related BSON format
+
+    @since version 3.1.0; added @a allow_exceptions parameter since 3.2.0
+    */
+    template<typename InputType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_ubjson(InputType&& i,
+                                  const bool strict = true,
+                                  const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::forward<InputType>(i));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    /*!
+    @copydoc from_ubjson(InputType&&, const bool, const bool)
+    */
+    template<typename IteratorType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_ubjson(IteratorType first, IteratorType last,
+                                  const bool strict = true,
+                                  const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::move(first), std::move(last));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    template<typename T>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len))
+    static basic_json from_ubjson(const T* ptr, std::size_t len,
+                                  const bool strict = true,
+                                  const bool allow_exceptions = true)
+    {
+        return from_ubjson(ptr, ptr + len, strict, allow_exceptions);
+    }
+
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len))
+    static basic_json from_ubjson(detail::span_input_adapter&& i,
+                                  const bool strict = true,
+                                  const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = i.get();
+        // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+
+    /*!
+    @brief Create a JSON value from an input in BSON format
+
+    Deserializes a given input @a i to a JSON value using the BSON (Binary JSON)
+    serialization format.
+
+    The library maps BSON record types to JSON value types as follows:
+
+    BSON type       | BSON marker byte | JSON value type
+    --------------- | ---------------- | ---------------------------
+    double          | 0x01             | number_float
+    string          | 0x02             | string
+    document        | 0x03             | object
+    array           | 0x04             | array
+    binary          | 0x05             | binary
+    undefined       | 0x06             | still unsupported
+    ObjectId        | 0x07             | still unsupported
+    boolean         | 0x08             | boolean
+    UTC Date-Time   | 0x09             | still unsupported
+    null            | 0x0A             | null
+    Regular Expr.   | 0x0B             | still unsupported
+    DB Pointer      | 0x0C             | still unsupported
+    JavaScript Code | 0x0D             | still unsupported
+    Symbol          | 0x0E             | still unsupported
+    JavaScript Code | 0x0F             | still unsupported
+    int32           | 0x10             | number_integer
+    Timestamp       | 0x11             | still unsupported
+    128-bit decimal float | 0x13       | still unsupported
+    Max Key         | 0x7F             | still unsupported
+    Min Key         | 0xFF             | still unsupported
+
+    @warning The mapping is **incomplete**. The unsupported mappings
+             are indicated in the table above.
+
+    @param[in] i  an input in BSON format convertible to an input adapter
+    @param[in] strict  whether to expect the input to be consumed until EOF
+                       (true by default)
+    @param[in] allow_exceptions  whether to throw exceptions in case of a
+    parse error (optional, true by default)
+
+    @return deserialized JSON value; in case of a parse error and
+            @a allow_exceptions set to `false`, the return value will be
+            value_t::discarded.
+
+    @throw parse_error.114 if an unsupported BSON record type is encountered
+
+    @complexity Linear in the size of the input @a i.
+
+    @liveexample{The example shows the deserialization of a byte vector in
+    BSON format to a JSON value.,from_bson}
+
+    @sa http://bsonspec.org/spec.html
+    @sa see @ref to_bson(const basic_json&) for the analogous serialization
+    @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
+        related CBOR format
+    @sa see @ref from_msgpack(InputType&&, const bool, const bool) for
+        the related MessagePack format
+    @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
+        related UBJSON format
+    */
+    template<typename InputType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_bson(InputType&& i,
+                                const bool strict = true,
+                                const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::forward<InputType>(i));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    /*!
+    @copydoc from_bson(InputType&&, const bool, const bool)
+    */
+    template<typename IteratorType>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json from_bson(IteratorType first, IteratorType last,
+                                const bool strict = true,
+                                const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = detail::input_adapter(std::move(first), std::move(last));
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+
+    template<typename T>
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len))
+    static basic_json from_bson(const T* ptr, std::size_t len,
+                                const bool strict = true,
+                                const bool allow_exceptions = true)
+    {
+        return from_bson(ptr, ptr + len, strict, allow_exceptions);
+    }
+
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len))
+    static basic_json from_bson(detail::span_input_adapter&& i,
+                                const bool strict = true,
+                                const bool allow_exceptions = true)
+    {
+        basic_json result;
+        detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
+        auto ia = i.get();
+        // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
+        const bool res = binary_reader<decltype(ia)>(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict);
+        return res ? result : basic_json(value_t::discarded);
+    }
+    /// @}
+
+    //////////////////////////
+    // JSON Pointer support //
+    //////////////////////////
+
+    /// @name JSON Pointer functions
+    /// @{
+
+    /*!
+    @brief access specified element via JSON Pointer
+
+    Uses a JSON pointer to retrieve a reference to the respective JSON value.
+    No bound checking is performed. Similar to @ref operator[](const typename
+    object_t::key_type&), `null` values are created in arrays and objects if
+    necessary.
+
+    In particular:
+    - If the JSON pointer points to an object key that does not exist, it
+      is created an filled with a `null` value before a reference to it
+      is returned.
+    - If the JSON pointer points to an array index that does not exist, it
+      is created an filled with a `null` value before a reference to it
+      is returned. All indices between the current maximum and the given
+      index are also filled with `null`.
+    - The special value `-` is treated as a synonym for the index past the
+      end.
+
+    @param[in] ptr  a JSON pointer
+
+    @return reference to the element pointed to by @a ptr
+
+    @complexity Constant.
+
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    @throw out_of_range.404  if the JSON pointer can not be resolved
+
+    @liveexample{The behavior is shown in the example.,operatorjson_pointer}
+
+    @since version 2.0.0
+    */
+    reference operator[](const json_pointer& ptr)
+    {
+        return ptr.get_unchecked(this);
+    }
+
+    /*!
+    @brief access specified element via JSON Pointer
+
+    Uses a JSON pointer to retrieve a reference to the respective JSON value.
+    No bound checking is performed. The function does not change the JSON
+    value; no `null` values are created. In particular, the special value
+    `-` yields an exception.
+
+    @param[in] ptr  JSON pointer to the desired element
+
+    @return const reference to the element pointed to by @a ptr
+
+    @complexity Constant.
+
+    @throw parse_error.106   if an array index begins with '0'
+    @throw parse_error.109   if an array index was not a number
+    @throw out_of_range.402  if the array index '-' is used
+    @throw out_of_range.404  if the JSON pointer can not be resolved
+
+    @liveexample{The behavior is shown in the example.,operatorjson_pointer_const}
+
+    @since version 2.0.0
+    */
+    const_reference operator[](const json_pointer& ptr) const
+    {
+        return ptr.get_unchecked(this);
+    }
+
+    /*!
+    @brief access specified element via JSON Pointer
+
+    Returns a reference to the element at with specified JSON pointer @a ptr,
+    with bounds checking.
+
+    @param[in] ptr  JSON pointer to the desired element
+
+    @return reference to the element pointed to by @a ptr
+
+    @throw parse_error.106 if an array index in the passed JSON pointer @a ptr
+    begins with '0'. See example below.
+
+    @throw parse_error.109 if an array index in the passed JSON pointer @a ptr
+    is not a number. See example below.
+
+    @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr
+    is out of range. See example below.
+
+    @throw out_of_range.402 if the array index '-' is used in the passed JSON
+    pointer @a ptr. As `at` provides checked access (and no elements are
+    implicitly inserted), the index '-' is always invalid. See example below.
+
+    @throw out_of_range.403 if the JSON pointer describes a key of an object
+    which cannot be found. See example below.
+
+    @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved.
+    See example below.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Constant.
+
+    @since version 2.0.0
+
+    @liveexample{The behavior is shown in the example.,at_json_pointer}
+    */
+    reference at(const json_pointer& ptr)
+    {
+        return ptr.get_checked(this);
+    }
+
+    /*!
+    @brief access specified element via JSON Pointer
+
+    Returns a const reference to the element at with specified JSON pointer @a
+    ptr, with bounds checking.
+
+    @param[in] ptr  JSON pointer to the desired element
+
+    @return reference to the element pointed to by @a ptr
+
+    @throw parse_error.106 if an array index in the passed JSON pointer @a ptr
+    begins with '0'. See example below.
+
+    @throw parse_error.109 if an array index in the passed JSON pointer @a ptr
+    is not a number. See example below.
+
+    @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr
+    is out of range. See example below.
+
+    @throw out_of_range.402 if the array index '-' is used in the passed JSON
+    pointer @a ptr. As `at` provides checked access (and no elements are
+    implicitly inserted), the index '-' is always invalid. See example below.
+
+    @throw out_of_range.403 if the JSON pointer describes a key of an object
+    which cannot be found. See example below.
+
+    @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved.
+    See example below.
+
+    @exceptionsafety Strong guarantee: if an exception is thrown, there are no
+    changes in the JSON value.
+
+    @complexity Constant.
+
+    @since version 2.0.0
+
+    @liveexample{The behavior is shown in the example.,at_json_pointer_const}
+    */
+    const_reference at(const json_pointer& ptr) const
+    {
+        return ptr.get_checked(this);
+    }
+
+    /*!
+    @brief return flattened JSON value
+
+    The function creates a JSON object whose keys are JSON pointers (see [RFC
+    6901](https://tools.ietf.org/html/rfc6901)) and whose values are all
+    primitive. The original JSON value can be restored using the @ref
+    unflatten() function.
+
+    @return an object that maps JSON pointers to primitive values
+
+    @note Empty objects and arrays are flattened to `null` and will not be
+          reconstructed correctly by the @ref unflatten() function.
+
+    @complexity Linear in the size the JSON value.
+
+    @liveexample{The following code shows how a JSON object is flattened to an
+    object whose keys consist of JSON pointers.,flatten}
+
+    @sa see @ref unflatten() for the reverse function
+
+    @since version 2.0.0
+    */
+    basic_json flatten() const
+    {
+        basic_json result(value_t::object);
+        json_pointer::flatten("", *this, result);
+        return result;
+    }
+
+    /*!
+    @brief unflatten a previously flattened JSON value
+
+    The function restores the arbitrary nesting of a JSON value that has been
+    flattened before using the @ref flatten() function. The JSON value must
+    meet certain constraints:
+    1. The value must be an object.
+    2. The keys must be JSON pointers (see
+       [RFC 6901](https://tools.ietf.org/html/rfc6901))
+    3. The mapped values must be primitive JSON types.
+
+    @return the original JSON from a flattened version
+
+    @note Empty objects and arrays are flattened by @ref flatten() to `null`
+          values and can not unflattened to their original type. Apart from
+          this example, for a JSON value `j`, the following is always true:
+          `j == j.flatten().unflatten()`.
+
+    @complexity Linear in the size the JSON value.
+
+    @throw type_error.314  if value is not an object
+    @throw type_error.315  if object values are not primitive
+
+    @liveexample{The following code shows how a flattened JSON object is
+    unflattened into the original nested JSON object.,unflatten}
+
+    @sa see @ref flatten() for the reverse function
+
+    @since version 2.0.0
+    */
+    basic_json unflatten() const
+    {
+        return json_pointer::unflatten(*this);
+    }
+
+    /// @}
+
+    //////////////////////////
+    // JSON Patch functions //
+    //////////////////////////
+
+    /// @name JSON Patch functions
+    /// @{
+
+    /*!
+    @brief applies a JSON patch
+
+    [JSON Patch](http://jsonpatch.com) defines a JSON document structure for
+    expressing a sequence of operations to apply to a JSON) document. With
+    this function, a JSON Patch is applied to the current JSON value by
+    executing all operations from the patch.
+
+    @param[in] json_patch  JSON patch document
+    @return patched document
+
+    @note The application of a patch is atomic: Either all operations succeed
+          and the patched document is returned or an exception is thrown. In
+          any case, the original value is not changed: the patch is applied
+          to a copy of the value.
+
+    @throw parse_error.104 if the JSON patch does not consist of an array of
+    objects
+
+    @throw parse_error.105 if the JSON patch is malformed (e.g., mandatory
+    attributes are missing); example: `"operation add must have member path"`
+
+    @throw out_of_range.401 if an array index is out of range.
+
+    @throw out_of_range.403 if a JSON pointer inside the patch could not be
+    resolved successfully in the current JSON value; example: `"key baz not
+    found"`
+
+    @throw out_of_range.405 if JSON pointer has no parent ("add", "remove",
+    "move")
+
+    @throw other_error.501 if "test" operation was unsuccessful
+
+    @complexity Linear in the size of the JSON value and the length of the
+    JSON patch. As usually only a fraction of the JSON value is affected by
+    the patch, the complexity can usually be neglected.
+
+    @liveexample{The following code shows how a JSON patch is applied to a
+    value.,patch}
+
+    @sa see @ref diff -- create a JSON patch by comparing two JSON values
+
+    @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902)
+    @sa [RFC 6901 (JSON Pointer)](https://tools.ietf.org/html/rfc6901)
+
+    @since version 2.0.0
+    */
+    basic_json patch(const basic_json& json_patch) const
+    {
+        // make a working copy to apply the patch to
+        basic_json result = *this;
+
+        // the valid JSON Patch operations
+        enum class patch_operations {add, remove, replace, move, copy, test, invalid};
+
+        const auto get_op = [](const std::string & op)
+        {
+            if (op == "add")
+            {
+                return patch_operations::add;
+            }
+            if (op == "remove")
+            {
+                return patch_operations::remove;
+            }
+            if (op == "replace")
+            {
+                return patch_operations::replace;
+            }
+            if (op == "move")
+            {
+                return patch_operations::move;
+            }
+            if (op == "copy")
+            {
+                return patch_operations::copy;
+            }
+            if (op == "test")
+            {
+                return patch_operations::test;
+            }
+
+            return patch_operations::invalid;
+        };
+
+        // wrapper for "add" operation; add value at ptr
+        const auto operation_add = [&result](json_pointer & ptr, basic_json val)
+        {
+            // adding to the root of the target document means replacing it
+            if (ptr.empty())
+            {
+                result = val;
+                return;
+            }
+
+            // make sure the top element of the pointer exists
+            json_pointer top_pointer = ptr.top();
+            if (top_pointer != ptr)
+            {
+                result.at(top_pointer);
+            }
+
+            // get reference to parent of JSON pointer ptr
+            const auto last_path = ptr.back();
+            ptr.pop_back();
+            basic_json& parent = result[ptr];
+
+            switch (parent.m_type)
+            {
+                case value_t::null:
+                case value_t::object:
+                {
+                    // use operator[] to add value
+                    parent[last_path] = val;
+                    break;
+                }
+
+                case value_t::array:
+                {
+                    if (last_path == "-")
+                    {
+                        // special case: append to back
+                        parent.push_back(val);
+                    }
+                    else
+                    {
+                        const auto idx = json_pointer::array_index(last_path);
+                        if (JSON_HEDLEY_UNLIKELY(idx > parent.size()))
+                        {
+                            // avoid undefined behavior
+                            JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", parent));
+                        }
+
+                        // default case: insert add offset
+                        parent.insert(parent.begin() + static_cast<difference_type>(idx), val);
+                    }
+                    break;
+                }
+
+                // if there exists a parent it cannot be primitive
+                case value_t::string: // LCOV_EXCL_LINE
+                case value_t::boolean: // LCOV_EXCL_LINE
+                case value_t::number_integer: // LCOV_EXCL_LINE
+                case value_t::number_unsigned: // LCOV_EXCL_LINE
+                case value_t::number_float: // LCOV_EXCL_LINE
+                case value_t::binary: // LCOV_EXCL_LINE
+                case value_t::discarded: // LCOV_EXCL_LINE
+                default:            // LCOV_EXCL_LINE
+                    JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
+            }
+        };
+
+        // wrapper for "remove" operation; remove value at ptr
+        const auto operation_remove = [this, &result](json_pointer & ptr)
+        {
+            // get reference to parent of JSON pointer ptr
+            const auto last_path = ptr.back();
+            ptr.pop_back();
+            basic_json& parent = result.at(ptr);
+
+            // remove child
+            if (parent.is_object())
+            {
+                // perform range check
+                auto it = parent.find(last_path);
+                if (JSON_HEDLEY_LIKELY(it != parent.end()))
+                {
+                    parent.erase(it);
+                }
+                else
+                {
+                    JSON_THROW(out_of_range::create(403, "key '" + last_path + "' not found", *this));
+                }
+            }
+            else if (parent.is_array())
+            {
+                // note erase performs range check
+                parent.erase(json_pointer::array_index(last_path));
+            }
+        };
+
+        // type check: top level value must be an array
+        if (JSON_HEDLEY_UNLIKELY(!json_patch.is_array()))
+        {
+            JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", json_patch));
+        }
+
+        // iterate and apply the operations
+        for (const auto& val : json_patch)
+        {
+            // wrapper to get a value for an operation
+            const auto get_value = [&val](const std::string & op,
+                                          const std::string & member,
+                                          bool string_type) -> basic_json &
+            {
+                // find value
+                auto it = val.m_value.object->find(member);
+
+                // context-sensitive error message
+                const auto error_msg = (op == "op") ? "operation" : "operation '" + op + "'";
+
+                // check if desired value is present
+                if (JSON_HEDLEY_UNLIKELY(it == val.m_value.object->end()))
+                {
+                    // NOLINTNEXTLINE(performance-inefficient-string-concatenation)
+                    JSON_THROW(parse_error::create(105, 0, error_msg + " must have member '" + member + "'", val));
+                }
+
+                // check if result is of type string
+                if (JSON_HEDLEY_UNLIKELY(string_type && !it->second.is_string()))
+                {
+                    // NOLINTNEXTLINE(performance-inefficient-string-concatenation)
+                    JSON_THROW(parse_error::create(105, 0, error_msg + " must have string member '" + member + "'", val));
+                }
+
+                // no error: return value
+                return it->second;
+            };
+
+            // type check: every element of the array must be an object
+            if (JSON_HEDLEY_UNLIKELY(!val.is_object()))
+            {
+                JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", val));
+            }
+
+            // collect mandatory members
+            const auto op = get_value("op", "op", true).template get<std::string>();
+            const auto path = get_value(op, "path", true).template get<std::string>();
+            json_pointer ptr(path);
+
+            switch (get_op(op))
+            {
+                case patch_operations::add:
+                {
+                    operation_add(ptr, get_value("add", "value", false));
+                    break;
+                }
+
+                case patch_operations::remove:
+                {
+                    operation_remove(ptr);
+                    break;
+                }
+
+                case patch_operations::replace:
+                {
+                    // the "path" location must exist - use at()
+                    result.at(ptr) = get_value("replace", "value", false);
+                    break;
+                }
+
+                case patch_operations::move:
+                {
+                    const auto from_path = get_value("move", "from", true).template get<std::string>();
+                    json_pointer from_ptr(from_path);
+
+                    // the "from" location must exist - use at()
+                    basic_json v = result.at(from_ptr);
+
+                    // The move operation is functionally identical to a
+                    // "remove" operation on the "from" location, followed
+                    // immediately by an "add" operation at the target
+                    // location with the value that was just removed.
+                    operation_remove(from_ptr);
+                    operation_add(ptr, v);
+                    break;
+                }
+
+                case patch_operations::copy:
+                {
+                    const auto from_path = get_value("copy", "from", true).template get<std::string>();
+                    const json_pointer from_ptr(from_path);
+
+                    // the "from" location must exist - use at()
+                    basic_json v = result.at(from_ptr);
+
+                    // The copy is functionally identical to an "add"
+                    // operation at the target location using the value
+                    // specified in the "from" member.
+                    operation_add(ptr, v);
+                    break;
+                }
+
+                case patch_operations::test:
+                {
+                    bool success = false;
+                    JSON_TRY
+                    {
+                        // check if "value" matches the one at "path"
+                        // the "path" location must exist - use at()
+                        success = (result.at(ptr) == get_value("test", "value", false));
+                    }
+                    JSON_INTERNAL_CATCH (out_of_range&)
+                    {
+                        // ignore out of range errors: success remains false
+                    }
+
+                    // throw an exception if test fails
+                    if (JSON_HEDLEY_UNLIKELY(!success))
+                    {
+                        JSON_THROW(other_error::create(501, "unsuccessful: " + val.dump(), val));
+                    }
+
+                    break;
+                }
+
+                case patch_operations::invalid:
+                default:
+                {
+                    // op must be "add", "remove", "replace", "move", "copy", or
+                    // "test"
+                    JSON_THROW(parse_error::create(105, 0, "operation value '" + op + "' is invalid", val));
+                }
+            }
+        }
+
+        return result;
+    }
+
+    /*!
+    @brief creates a diff as a JSON patch
+
+    Creates a [JSON Patch](http://jsonpatch.com) so that value @a source can
+    be changed into the value @a target by calling @ref patch function.
+
+    @invariant For two JSON values @a source and @a target, the following code
+    yields always `true`:
+    @code {.cpp}
+    source.patch(diff(source, target)) == target;
+    @endcode
+
+    @note Currently, only `remove`, `add`, and `replace` operations are
+          generated.
+
+    @param[in] source  JSON value to compare from
+    @param[in] target  JSON value to compare against
+    @param[in] path    helper value to create JSON pointers
+
+    @return a JSON patch to convert the @a source to @a target
+
+    @complexity Linear in the lengths of @a source and @a target.
+
+    @liveexample{The following code shows how a JSON patch is created as a
+    diff for two JSON values.,diff}
+
+    @sa see @ref patch -- apply a JSON patch
+    @sa see @ref merge_patch -- apply a JSON Merge Patch
+
+    @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902)
+
+    @since version 2.0.0
+    */
+    JSON_HEDLEY_WARN_UNUSED_RESULT
+    static basic_json diff(const basic_json& source, const basic_json& target,
+                           const std::string& path = "")
+    {
+        // the patch
+        basic_json result(value_t::array);
+
+        // if the values are the same, return empty patch
+        if (source == target)
+        {
+            return result;
+        }
+
+        if (source.type() != target.type())
+        {
+            // different types: replace value
+            result.push_back(
+            {
+                {"op", "replace"}, {"path", path}, {"value", target}
+            });
+            return result;
+        }
+
+        switch (source.type())
+        {
+            case value_t::array:
+            {
+                // first pass: traverse common elements
+                std::size_t i = 0;
+                while (i < source.size() && i < target.size())
+                {
+                    // recursive call to compare array values at index i
+                    auto temp_diff = diff(source[i], target[i], path + "/" + std::to_string(i));
+                    result.insert(result.end(), temp_diff.begin(), temp_diff.end());
+                    ++i;
+                }
+
+                // i now reached the end of at least one array
+                // in a second pass, traverse the remaining elements
+
+                // remove my remaining elements
+                const auto end_index = static_cast<difference_type>(result.size());
+                while (i < source.size())
+                {
+                    // add operations in reverse order to avoid invalid
+                    // indices
+                    result.insert(result.begin() + end_index, object(
+                    {
+                        {"op", "remove"},
+                        {"path", path + "/" + std::to_string(i)}
+                    }));
+                    ++i;
+                }
+
+                // add other remaining elements
+                while (i < target.size())
+                {
+                    result.push_back(
+                    {
+                        {"op", "add"},
+                        {"path", path + "/-"},
+                        {"value", target[i]}
+                    });
+                    ++i;
+                }
+
+                break;
+            }
+
+            case value_t::object:
+            {
+                // first pass: traverse this object's elements
+                for (auto it = source.cbegin(); it != source.cend(); ++it)
+                {
+                    // escape the key name to be used in a JSON patch
+                    const auto path_key = path + "/" + detail::escape(it.key());
+
+                    if (target.find(it.key()) != target.end())
+                    {
+                        // recursive call to compare object values at key it
+                        auto temp_diff = diff(it.value(), target[it.key()], path_key);
+                        result.insert(result.end(), temp_diff.begin(), temp_diff.end());
+                    }
+                    else
+                    {
+                        // found a key that is not in o -> remove it
+                        result.push_back(object(
+                        {
+                            {"op", "remove"}, {"path", path_key}
+                        }));
+                    }
+                }
+
+                // second pass: traverse other object's elements
+                for (auto it = target.cbegin(); it != target.cend(); ++it)
+                {
+                    if (source.find(it.key()) == source.end())
+                    {
+                        // found a key that is not in this -> add it
+                        const auto path_key = path + "/" + detail::escape(it.key());
+                        result.push_back(
+                        {
+                            {"op", "add"}, {"path", path_key},
+                            {"value", it.value()}
+                        });
+                    }
+                }
+
+                break;
+            }
+
+            case value_t::null:
+            case value_t::string:
+            case value_t::boolean:
+            case value_t::number_integer:
+            case value_t::number_unsigned:
+            case value_t::number_float:
+            case value_t::binary:
+            case value_t::discarded:
+            default:
+            {
+                // both primitive type: replace value
+                result.push_back(
+                {
+                    {"op", "replace"}, {"path", path}, {"value", target}
+                });
+                break;
+            }
+        }
+
+        return result;
+    }
+
+    /// @}
+
+    ////////////////////////////////
+    // JSON Merge Patch functions //
+    ////////////////////////////////
+
+    /// @name JSON Merge Patch functions
+    /// @{
+
+    /*!
+    @brief applies a JSON Merge Patch
+
+    The merge patch format is primarily intended for use with the HTTP PATCH
+    method as a means of describing a set of modifications to a target
+    resource's content. This function applies a merge patch to the current
+    JSON value.
+
+    The function implements the following algorithm from Section 2 of
+    [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396):
+
+    ```
+    define MergePatch(Target, Patch):
+      if Patch is an Object:
+        if Target is not an Object:
+          Target = {} // Ignore the contents and set it to an empty Object
+        for each Name/Value pair in Patch:
+          if Value is null:
+            if Name exists in Target:
+              remove the Name/Value pair from Target
+          else:
+            Target[Name] = MergePatch(Target[Name], Value)
+        return Target
+      else:
+        return Patch
+    ```
+
+    Thereby, `Target` is the current object; that is, the patch is applied to
+    the current value.
+
+    @param[in] apply_patch  the patch to apply
+
+    @complexity Linear in the lengths of @a patch.
+
+    @liveexample{The following code shows how a JSON Merge Patch is applied to
+    a JSON document.,merge_patch}
+
+    @sa see @ref patch -- apply a JSON patch
+    @sa [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396)
+
+    @since version 3.0.0
+    */
+    void merge_patch(const basic_json& apply_patch)
+    {
+        if (apply_patch.is_object())
+        {
+            if (!is_object())
+            {
+                *this = object();
+            }
+            for (auto it = apply_patch.begin(); it != apply_patch.end(); ++it)
+            {
+                if (it.value().is_null())
+                {
+                    erase(it.key());
+                }
+                else
+                {
+                    operator[](it.key()).merge_patch(it.value());
+                }
+            }
+        }
+        else
+        {
+            *this = apply_patch;
+        }
+    }
+
+    /// @}
+};
+
+/*!
+@brief user-defined to_string function for JSON values
+
+This function implements a user-defined to_string  for JSON objects.
+
+@param[in] j  a JSON object
+@return a std::string object
+*/
+
+NLOHMANN_BASIC_JSON_TPL_DECLARATION
+std::string to_string(const NLOHMANN_BASIC_JSON_TPL& j)
+{
+    return j.dump();
+}
+} // namespace nlohmann
+
+///////////////////////
+// nonmember support //
+///////////////////////
+
+// specialization of std::swap, and std::hash
+namespace std
+{
+
+/// hash value for JSON objects
+template<>
+struct hash<nlohmann::json>
+{
+    /*!
+    @brief return a hash value for a JSON object
+
+    @since version 1.0.0
+    */
+    std::size_t operator()(const nlohmann::json& j) const
+    {
+        return nlohmann::detail::hash(j);
+    }
+};
+
+/// specialization for std::less<value_t>
+/// @note: do not remove the space after '<',
+///        see https://github.com/nlohmann/json/pull/679
+template<>
+struct less<::nlohmann::detail::value_t>
+{
+    /*!
+    @brief compare two value_t enum values
+    @since version 3.0.0
+    */
+    bool operator()(nlohmann::detail::value_t lhs,
+                    nlohmann::detail::value_t rhs) const noexcept
+    {
+        return nlohmann::detail::operator<(lhs, rhs);
+    }
+};
+
+// C++20 prohibit function specialization in the std namespace.
+#ifndef JSON_HAS_CPP_20
+
+/*!
+@brief exchanges the values of two JSON objects
+
+@since version 1.0.0
+*/
+template<>
+inline void swap<nlohmann::json>(nlohmann::json& j1, nlohmann::json& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name)
+    is_nothrow_move_constructible<nlohmann::json>::value&&  // NOLINT(misc-redundant-expression)
+    is_nothrow_move_assignable<nlohmann::json>::value
+                              )
+{
+    j1.swap(j2);
+}
+
+#endif
+
+} // namespace std
+
+/*!
+@brief user-defined string literal for JSON values
+
+This operator implements a user-defined string literal for JSON objects. It
+can be used by adding `"_json"` to a string literal and returns a JSON object
+if no parse error occurred.
+
+@param[in] s  a string representation of a JSON object
+@param[in] n  the length of string @a s
+@return a JSON object
+
+@since version 1.0.0
+*/
+JSON_HEDLEY_NON_NULL(1)
+inline nlohmann::json operator "" _json(const char* s, std::size_t n)
+{
+    return nlohmann::json::parse(s, s + n);
+}
+
+/*!
+@brief user-defined string literal for JSON pointer
+
+This operator implements a user-defined string literal for JSON Pointers. It
+can be used by adding `"_json_pointer"` to a string literal and returns a JSON pointer
+object if no parse error occurred.
+
+@param[in] s  a string representation of a JSON Pointer
+@param[in] n  the length of string @a s
+@return a JSON pointer object
+
+@since version 2.0.0
+*/
+JSON_HEDLEY_NON_NULL(1)
+inline nlohmann::json::json_pointer operator "" _json_pointer(const char* s, std::size_t n)
+{
+    return nlohmann::json::json_pointer(std::string(s, n));
+}
+
+// #include <nlohmann/detail/macro_unscope.hpp>
+
+
+// restore clang diagnostic settings
+#if defined(__clang__)
+    #pragma clang diagnostic pop
+#endif
+
+// clean up
+#undef JSON_ASSERT
+#undef JSON_INTERNAL_CATCH
+#undef JSON_CATCH
+#undef JSON_THROW
+#undef JSON_TRY
+#undef JSON_PRIVATE_UNLESS_TESTED
+#undef JSON_HAS_CPP_11
+#undef JSON_HAS_CPP_14
+#undef JSON_HAS_CPP_17
+#undef JSON_HAS_CPP_20
+#undef NLOHMANN_BASIC_JSON_TPL_DECLARATION
+#undef NLOHMANN_BASIC_JSON_TPL
+#undef JSON_EXPLICIT
+#undef NLOHMANN_CAN_CALL_STD_FUNC_IMPL
+
+// #include <nlohmann/thirdparty/hedley/hedley_undef.hpp>
+
+
+#undef JSON_HEDLEY_ALWAYS_INLINE
+#undef JSON_HEDLEY_ARM_VERSION
+#undef JSON_HEDLEY_ARM_VERSION_CHECK
+#undef JSON_HEDLEY_ARRAY_PARAM
+#undef JSON_HEDLEY_ASSUME
+#undef JSON_HEDLEY_BEGIN_C_DECLS
+#undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE
+#undef JSON_HEDLEY_CLANG_HAS_BUILTIN
+#undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE
+#undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE
+#undef JSON_HEDLEY_CLANG_HAS_EXTENSION
+#undef JSON_HEDLEY_CLANG_HAS_FEATURE
+#undef JSON_HEDLEY_CLANG_HAS_WARNING
+#undef JSON_HEDLEY_COMPCERT_VERSION
+#undef JSON_HEDLEY_COMPCERT_VERSION_CHECK
+#undef JSON_HEDLEY_CONCAT
+#undef JSON_HEDLEY_CONCAT3
+#undef JSON_HEDLEY_CONCAT3_EX
+#undef JSON_HEDLEY_CONCAT_EX
+#undef JSON_HEDLEY_CONST
+#undef JSON_HEDLEY_CONSTEXPR
+#undef JSON_HEDLEY_CONST_CAST
+#undef JSON_HEDLEY_CPP_CAST
+#undef JSON_HEDLEY_CRAY_VERSION
+#undef JSON_HEDLEY_CRAY_VERSION_CHECK
+#undef JSON_HEDLEY_C_DECL
+#undef JSON_HEDLEY_DEPRECATED
+#undef JSON_HEDLEY_DEPRECATED_FOR
+#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL
+#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_
+#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
+#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES
+#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS
+#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION
+#undef JSON_HEDLEY_DIAGNOSTIC_POP
+#undef JSON_HEDLEY_DIAGNOSTIC_PUSH
+#undef JSON_HEDLEY_DMC_VERSION
+#undef JSON_HEDLEY_DMC_VERSION_CHECK
+#undef JSON_HEDLEY_EMPTY_BASES
+#undef JSON_HEDLEY_EMSCRIPTEN_VERSION
+#undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK
+#undef JSON_HEDLEY_END_C_DECLS
+#undef JSON_HEDLEY_FLAGS
+#undef JSON_HEDLEY_FLAGS_CAST
+#undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE
+#undef JSON_HEDLEY_GCC_HAS_BUILTIN
+#undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE
+#undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE
+#undef JSON_HEDLEY_GCC_HAS_EXTENSION
+#undef JSON_HEDLEY_GCC_HAS_FEATURE
+#undef JSON_HEDLEY_GCC_HAS_WARNING
+#undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK
+#undef JSON_HEDLEY_GCC_VERSION
+#undef JSON_HEDLEY_GCC_VERSION_CHECK
+#undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE
+#undef JSON_HEDLEY_GNUC_HAS_BUILTIN
+#undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE
+#undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE
+#undef JSON_HEDLEY_GNUC_HAS_EXTENSION
+#undef JSON_HEDLEY_GNUC_HAS_FEATURE
+#undef JSON_HEDLEY_GNUC_HAS_WARNING
+#undef JSON_HEDLEY_GNUC_VERSION
+#undef JSON_HEDLEY_GNUC_VERSION_CHECK
+#undef JSON_HEDLEY_HAS_ATTRIBUTE
+#undef JSON_HEDLEY_HAS_BUILTIN
+#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE
+#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS
+#undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE
+#undef JSON_HEDLEY_HAS_EXTENSION
+#undef JSON_HEDLEY_HAS_FEATURE
+#undef JSON_HEDLEY_HAS_WARNING
+#undef JSON_HEDLEY_IAR_VERSION
+#undef JSON_HEDLEY_IAR_VERSION_CHECK
+#undef JSON_HEDLEY_IBM_VERSION
+#undef JSON_HEDLEY_IBM_VERSION_CHECK
+#undef JSON_HEDLEY_IMPORT
+#undef JSON_HEDLEY_INLINE
+#undef JSON_HEDLEY_INTEL_CL_VERSION
+#undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK
+#undef JSON_HEDLEY_INTEL_VERSION
+#undef JSON_HEDLEY_INTEL_VERSION_CHECK
+#undef JSON_HEDLEY_IS_CONSTANT
+#undef JSON_HEDLEY_IS_CONSTEXPR_
+#undef JSON_HEDLEY_LIKELY
+#undef JSON_HEDLEY_MALLOC
+#undef JSON_HEDLEY_MCST_LCC_VERSION
+#undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK
+#undef JSON_HEDLEY_MESSAGE
+#undef JSON_HEDLEY_MSVC_VERSION
+#undef JSON_HEDLEY_MSVC_VERSION_CHECK
+#undef JSON_HEDLEY_NEVER_INLINE
+#undef JSON_HEDLEY_NON_NULL
+#undef JSON_HEDLEY_NO_ESCAPE
+#undef JSON_HEDLEY_NO_RETURN
+#undef JSON_HEDLEY_NO_THROW
+#undef JSON_HEDLEY_NULL
+#undef JSON_HEDLEY_PELLES_VERSION
+#undef JSON_HEDLEY_PELLES_VERSION_CHECK
+#undef JSON_HEDLEY_PGI_VERSION
+#undef JSON_HEDLEY_PGI_VERSION_CHECK
+#undef JSON_HEDLEY_PREDICT
+#undef JSON_HEDLEY_PRINTF_FORMAT
+#undef JSON_HEDLEY_PRIVATE
+#undef JSON_HEDLEY_PUBLIC
+#undef JSON_HEDLEY_PURE
+#undef JSON_HEDLEY_REINTERPRET_CAST
+#undef JSON_HEDLEY_REQUIRE
+#undef JSON_HEDLEY_REQUIRE_CONSTEXPR
+#undef JSON_HEDLEY_REQUIRE_MSG
+#undef JSON_HEDLEY_RESTRICT
+#undef JSON_HEDLEY_RETURNS_NON_NULL
+#undef JSON_HEDLEY_SENTINEL
+#undef JSON_HEDLEY_STATIC_ASSERT
+#undef JSON_HEDLEY_STATIC_CAST
+#undef JSON_HEDLEY_STRINGIFY
+#undef JSON_HEDLEY_STRINGIFY_EX
+#undef JSON_HEDLEY_SUNPRO_VERSION
+#undef JSON_HEDLEY_SUNPRO_VERSION_CHECK
+#undef JSON_HEDLEY_TINYC_VERSION
+#undef JSON_HEDLEY_TINYC_VERSION_CHECK
+#undef JSON_HEDLEY_TI_ARMCL_VERSION
+#undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK
+#undef JSON_HEDLEY_TI_CL2000_VERSION
+#undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK
+#undef JSON_HEDLEY_TI_CL430_VERSION
+#undef JSON_HEDLEY_TI_CL430_VERSION_CHECK
+#undef JSON_HEDLEY_TI_CL6X_VERSION
+#undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK
+#undef JSON_HEDLEY_TI_CL7X_VERSION
+#undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK
+#undef JSON_HEDLEY_TI_CLPRU_VERSION
+#undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK
+#undef JSON_HEDLEY_TI_VERSION
+#undef JSON_HEDLEY_TI_VERSION_CHECK
+#undef JSON_HEDLEY_UNAVAILABLE
+#undef JSON_HEDLEY_UNLIKELY
+#undef JSON_HEDLEY_UNPREDICTABLE
+#undef JSON_HEDLEY_UNREACHABLE
+#undef JSON_HEDLEY_UNREACHABLE_RETURN
+#undef JSON_HEDLEY_VERSION
+#undef JSON_HEDLEY_VERSION_DECODE_MAJOR
+#undef JSON_HEDLEY_VERSION_DECODE_MINOR
+#undef JSON_HEDLEY_VERSION_DECODE_REVISION
+#undef JSON_HEDLEY_VERSION_ENCODE
+#undef JSON_HEDLEY_WARNING
+#undef JSON_HEDLEY_WARN_UNUSED_RESULT
+#undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG
+#undef JSON_HEDLEY_FALL_THROUGH
+
+
+
+#endif  // INCLUDE_NLOHMANN_JSON_HPP_
diff --git a/third_party/rapidjson/allocators.h b/third_party/rapidjson/allocators.h
deleted file mode 100644
index 98affe03..00000000
--- a/third_party/rapidjson/allocators.h
+++ /dev/null
@@ -1,271 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_ALLOCATORS_H_
-#define RAPIDJSON_ALLOCATORS_H_
-
-#include "rapidjson.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-// Allocator
-
-/*! \class rapidjson::Allocator
-    \brief Concept for allocating, resizing and freeing memory block.
-    
-    Note that Malloc() and Realloc() are non-static but Free() is static.
-    
-    So if an allocator need to support Free(), it needs to put its pointer in 
-    the header of memory block.
-
-\code
-concept Allocator {
-    static const bool kNeedFree;    //!< Whether this allocator needs to call Free().
-
-    // Allocate a memory block.
-    // \param size of the memory block in bytes.
-    // \returns pointer to the memory block.
-    void* Malloc(size_t size);
-
-    // Resize a memory block.
-    // \param originalPtr The pointer to current memory block. Null pointer is permitted.
-    // \param originalSize The current size in bytes. (Design issue: since some allocator may not book-keep this, explicitly pass to it can save memory.)
-    // \param newSize the new size in bytes.
-    void* Realloc(void* originalPtr, size_t originalSize, size_t newSize);
-
-    // Free a memory block.
-    // \param pointer to the memory block. Null pointer is permitted.
-    static void Free(void *ptr);
-};
-\endcode
-*/
-
-///////////////////////////////////////////////////////////////////////////////
-// CrtAllocator
-
-//! C-runtime library allocator.
-/*! This class is just wrapper for standard C library memory routines.
-    \note implements Allocator concept
-*/
-class CrtAllocator {
-public:
-    static const bool kNeedFree = true;
-    void* Malloc(size_t size) { 
-        if (size) //  behavior of malloc(0) is implementation defined.
-            return std::malloc(size);
-        else
-            return NULL; // standardize to returning NULL.
-    }
-    void* Realloc(void* originalPtr, size_t originalSize, size_t newSize) {
-        (void)originalSize;
-        if (newSize == 0) {
-            std::free(originalPtr);
-            return NULL;
-        }
-        return std::realloc(originalPtr, newSize);
-    }
-    static void Free(void *ptr) { std::free(ptr); }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// MemoryPoolAllocator
-
-//! Default memory allocator used by the parser and DOM.
-/*! This allocator allocate memory blocks from pre-allocated memory chunks. 
-
-    It does not free memory blocks. And Realloc() only allocate new memory.
-
-    The memory chunks are allocated by BaseAllocator, which is CrtAllocator by default.
-
-    User may also supply a buffer as the first chunk.
-
-    If the user-buffer is full then additional chunks are allocated by BaseAllocator.
-
-    The user-buffer is not deallocated by this allocator.
-
-    \tparam BaseAllocator the allocator type for allocating memory chunks. Default is CrtAllocator.
-    \note implements Allocator concept
-*/
-template <typename BaseAllocator = CrtAllocator>
-class MemoryPoolAllocator {
-public:
-    static const bool kNeedFree = false;    //!< Tell users that no need to call Free() with this allocator. (concept Allocator)
-
-    //! Constructor with chunkSize.
-    /*! \param chunkSize The size of memory chunk. The default is kDefaultChunkSize.
-        \param baseAllocator The allocator for allocating memory chunks.
-    */
-    MemoryPoolAllocator(size_t chunkSize = kDefaultChunkCapacity, BaseAllocator* baseAllocator = 0) : 
-        chunkHead_(0), chunk_capacity_(chunkSize), userBuffer_(0), baseAllocator_(baseAllocator), ownBaseAllocator_(0)
-    {
-    }
-
-    //! Constructor with user-supplied buffer.
-    /*! The user buffer will be used firstly. When it is full, memory pool allocates new chunk with chunk size.
-
-        The user buffer will not be deallocated when this allocator is destructed.
-
-        \param buffer User supplied buffer.
-        \param size Size of the buffer in bytes. It must at least larger than sizeof(ChunkHeader).
-        \param chunkSize The size of memory chunk. The default is kDefaultChunkSize.
-        \param baseAllocator The allocator for allocating memory chunks.
-    */
-    MemoryPoolAllocator(void *buffer, size_t size, size_t chunkSize = kDefaultChunkCapacity, BaseAllocator* baseAllocator = 0) :
-        chunkHead_(0), chunk_capacity_(chunkSize), userBuffer_(buffer), baseAllocator_(baseAllocator), ownBaseAllocator_(0)
-    {
-        RAPIDJSON_ASSERT(buffer != 0);
-        RAPIDJSON_ASSERT(size > sizeof(ChunkHeader));
-        chunkHead_ = reinterpret_cast<ChunkHeader*>(buffer);
-        chunkHead_->capacity = size - sizeof(ChunkHeader);
-        chunkHead_->size = 0;
-        chunkHead_->next = 0;
-    }
-
-    //! Destructor.
-    /*! This deallocates all memory chunks, excluding the user-supplied buffer.
-    */
-    ~MemoryPoolAllocator() {
-        Clear();
-        RAPIDJSON_DELETE(ownBaseAllocator_);
-    }
-
-    //! Deallocates all memory chunks, excluding the user-supplied buffer.
-    void Clear() {
-        while (chunkHead_ && chunkHead_ != userBuffer_) {
-            ChunkHeader* next = chunkHead_->next;
-            baseAllocator_->Free(chunkHead_);
-            chunkHead_ = next;
-        }
-        if (chunkHead_ && chunkHead_ == userBuffer_)
-            chunkHead_->size = 0; // Clear user buffer
-    }
-
-    //! Computes the total capacity of allocated memory chunks.
-    /*! \return total capacity in bytes.
-    */
-    size_t Capacity() const {
-        size_t capacity = 0;
-        for (ChunkHeader* c = chunkHead_; c != 0; c = c->next)
-            capacity += c->capacity;
-        return capacity;
-    }
-
-    //! Computes the memory blocks allocated.
-    /*! \return total used bytes.
-    */
-    size_t Size() const {
-        size_t size = 0;
-        for (ChunkHeader* c = chunkHead_; c != 0; c = c->next)
-            size += c->size;
-        return size;
-    }
-
-    //! Allocates a memory block. (concept Allocator)
-    void* Malloc(size_t size) {
-        if (!size)
-            return NULL;
-
-        size = RAPIDJSON_ALIGN(size);
-        if (chunkHead_ == 0 || chunkHead_->size + size > chunkHead_->capacity)
-            if (!AddChunk(chunk_capacity_ > size ? chunk_capacity_ : size))
-                return NULL;
-
-        void *buffer = reinterpret_cast<char *>(chunkHead_) + RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + chunkHead_->size;
-        chunkHead_->size += size;
-        return buffer;
-    }
-
-    //! Resizes a memory block (concept Allocator)
-    void* Realloc(void* originalPtr, size_t originalSize, size_t newSize) {
-        if (originalPtr == 0)
-            return Malloc(newSize);
-
-        if (newSize == 0)
-            return NULL;
-
-        originalSize = RAPIDJSON_ALIGN(originalSize);
-        newSize = RAPIDJSON_ALIGN(newSize);
-
-        // Do not shrink if new size is smaller than original
-        if (originalSize >= newSize)
-            return originalPtr;
-
-        // Simply expand it if it is the last allocation and there is sufficient space
-        if (originalPtr == reinterpret_cast<char *>(chunkHead_) + RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + chunkHead_->size - originalSize) {
-            size_t increment = static_cast<size_t>(newSize - originalSize);
-            if (chunkHead_->size + increment <= chunkHead_->capacity) {
-                chunkHead_->size += increment;
-                return originalPtr;
-            }
-        }
-
-        // Realloc process: allocate and copy memory, do not free original buffer.
-        if (void* newBuffer = Malloc(newSize)) {
-            if (originalSize)
-                std::memcpy(newBuffer, originalPtr, originalSize);
-            return newBuffer;
-        }
-        else
-            return NULL;
-    }
-
-    //! Frees a memory block (concept Allocator)
-    static void Free(void *ptr) { (void)ptr; } // Do nothing
-
-private:
-    //! Copy constructor is not permitted.
-    MemoryPoolAllocator(const MemoryPoolAllocator& rhs) /* = delete */;
-    //! Copy assignment operator is not permitted.
-    MemoryPoolAllocator& operator=(const MemoryPoolAllocator& rhs) /* = delete */;
-
-    //! Creates a new chunk.
-    /*! \param capacity Capacity of the chunk in bytes.
-        \return true if success.
-    */
-    bool AddChunk(size_t capacity) {
-        if (!baseAllocator_)
-            ownBaseAllocator_ = baseAllocator_ = RAPIDJSON_NEW(BaseAllocator());
-        if (ChunkHeader* chunk = reinterpret_cast<ChunkHeader*>(baseAllocator_->Malloc(RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + capacity))) {
-            chunk->capacity = capacity;
-            chunk->size = 0;
-            chunk->next = chunkHead_;
-            chunkHead_ =  chunk;
-            return true;
-        }
-        else
-            return false;
-    }
-
-    static const int kDefaultChunkCapacity = 64 * 1024; //!< Default chunk capacity.
-
-    //! Chunk header for perpending to each chunk.
-    /*! Chunks are stored as a singly linked list.
-    */
-    struct ChunkHeader {
-        size_t capacity;    //!< Capacity of the chunk in bytes (excluding the header itself).
-        size_t size;        //!< Current size of allocated memory in bytes.
-        ChunkHeader *next;  //!< Next chunk in the linked list.
-    };
-
-    ChunkHeader *chunkHead_;    //!< Head of the chunk linked-list. Only the head chunk serves allocation.
-    size_t chunk_capacity_;     //!< The minimum capacity of chunk when they are allocated.
-    void *userBuffer_;          //!< User supplied buffer.
-    BaseAllocator* baseAllocator_;  //!< base allocator for allocating memory chunks.
-    BaseAllocator* ownBaseAllocator_;   //!< base allocator created by this object.
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_ENCODINGS_H_
diff --git a/third_party/rapidjson/document.h b/third_party/rapidjson/document.h
deleted file mode 100644
index f2d57fd1..00000000
--- a/third_party/rapidjson/document.h
+++ /dev/null
@@ -1,3231 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_DOCUMENT_H_
-#define RAPIDJSON_DOCUMENT_H_
-
-/*! \file document.h */
-
-#include <limits>
-#include <new>  // placement new
-#include "encodedstream.h"
-#include "memorystream.h"
-#include "rapidjson/internal/meta.h"
-#include "rapidjson/internal/strfunc.h"
-#include "reader.h"
-
-RAPIDJSON_DIAG_PUSH
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_OFF(4127)  // conditional expression is constant
-RAPIDJSON_DIAG_OFF(
-    4244)  // conversion from kXxxFlags to 'uint16_t', possible loss of data
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_OFF(padded)
-RAPIDJSON_DIAG_OFF(switch - enum)
-RAPIDJSON_DIAG_OFF(c++ 98 - compat)
-#endif
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_OFF(effc++)
-#if __GNUC__ >= 6
-RAPIDJSON_DIAG_OFF(terminate)  // ignore throwing RAPIDJSON_ASSERT in
-                               // RAPIDJSON_NOEXCEPT functions
-#endif
-#endif  // __GNUC__
-
-#ifndef RAPIDJSON_NOMEMBERITERATORCLASS
-#include <iterator>  // std::iterator, std::random_access_iterator_tag
-#endif
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-#include <utility>  // std::move
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-// Forward declaration.
-template <typename Encoding, typename Allocator>
-class GenericValue;
-
-template <typename Encoding, typename Allocator, typename StackAllocator>
-class GenericDocument;
-
-//! Name-value pair in a JSON object value.
-/*!
-    This class was internal to GenericValue. It used to be a inner struct.
-    But a compiler (IBM XL C/C++ for AIX) have reported to have problem with
-   that so it moved as a namespace scope struct.
-    https://code.google.com/p/rapidjson/issues/detail?id=64
-*/
-template <typename Encoding, typename Allocator>
-struct GenericMember {
-  GenericValue<Encoding, Allocator>
-      name;  //!< name of member (must be a string)
-  GenericValue<Encoding, Allocator> value;  //!< value of member.
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericMemberIterator
-
-#ifndef RAPIDJSON_NOMEMBERITERATORCLASS
-
-//! (Constant) member iterator for a JSON object value
-/*!
-    \tparam Const Is this a constant iterator?
-    \tparam Encoding    Encoding of the value. (Even non-string values need to
-   have the same encoding in a document) \tparam Allocator   Allocator type for
-   allocating memory of object, array and string.
-
-    This class implements a Random Access Iterator for GenericMember elements
-    of a GenericValue, see ISO/IEC 14882:2003(E) C++ standard, 24.1
-   [lib.iterator.requirements].
-
-    \note This iterator implementation is mainly intended to avoid implicit
-        conversions from iterator values to \c NULL,
-        e.g. from GenericValue::FindMember.
-
-    \note Define \c RAPIDJSON_NOMEMBERITERATORCLASS to fall back to a
-        pointer-based implementation, if your platform doesn't provide
-        the C++ <iterator> header.
-
-    \see GenericMember, GenericValue::MemberIterator,
-   GenericValue::ConstMemberIterator
- */
-template <bool Const, typename Encoding, typename Allocator>
-class GenericMemberIterator
-    : public std::iterator<std::random_access_iterator_tag,
-                           typename internal::MaybeAddConst<
-                               Const,
-                               GenericMember<Encoding, Allocator> >::Type> {
-  friend class GenericValue<Encoding, Allocator>;
-  template <bool, typename, typename>
-  friend class GenericMemberIterator;
-
-  typedef GenericMember<Encoding, Allocator> PlainType;
-  typedef typename internal::MaybeAddConst<Const, PlainType>::Type ValueType;
-  typedef std::iterator<std::random_access_iterator_tag, ValueType> BaseType;
-
- public:
-  //! Iterator type itself
-  typedef GenericMemberIterator Iterator;
-  //! Constant iterator type
-  typedef GenericMemberIterator<true, Encoding, Allocator> ConstIterator;
-  //! Non-constant iterator type
-  typedef GenericMemberIterator<false, Encoding, Allocator> NonConstIterator;
-
-  //! Pointer to (const) GenericMember
-  typedef typename BaseType::pointer Pointer;
-  //! Reference to (const) GenericMember
-  typedef typename BaseType::reference Reference;
-  //! Signed integer type (e.g. \c ptrdiff_t)
-  typedef typename BaseType::difference_type DifferenceType;
-
-  //! Default constructor (singular value)
-  /*! Creates an iterator pointing to no element.
-      \note All operations, except for comparisons, are undefined on such
-     values.
-   */
-  GenericMemberIterator() : ptr_() {}
-
-  //! Iterator conversions to more const
-  /*!
-      \param it (Non-const) iterator to copy from
-
-      Allows the creation of an iterator from another GenericMemberIterator
-      that is "less const".  Especially, creating a non-constant iterator
-      from a constant iterator are disabled:
-      \li const -> non-const (not ok)
-      \li const -> const (ok)
-      \li non-const -> const (ok)
-      \li non-const -> non-const (ok)
-
-      \note If the \c Const template parameter is already \c false, this
-          constructor effectively defines a regular copy-constructor.
-          Otherwise, the copy constructor is implicitly defined.
-  */
-  GenericMemberIterator(const NonConstIterator& it) : ptr_(it.ptr_) {}
-  Iterator& operator=(const NonConstIterator& it) {
-    ptr_ = it.ptr_;
-    return *this;
-  }
-
-  //! @name stepping
-  //@{
-  Iterator& operator++() {
-    ++ptr_;
-    return *this;
-  }
-  Iterator& operator--() {
-    --ptr_;
-    return *this;
-  }
-  Iterator operator++(int) {
-    Iterator old(*this);
-    ++ptr_;
-    return old;
-  }
-  Iterator operator--(int) {
-    Iterator old(*this);
-    --ptr_;
-    return old;
-  }
-  //@}
-
-  //! @name increment/decrement
-  //@{
-  Iterator operator+(DifferenceType n) const { return Iterator(ptr_ + n); }
-  Iterator operator-(DifferenceType n) const { return Iterator(ptr_ - n); }
-
-  Iterator& operator+=(DifferenceType n) {
-    ptr_ += n;
-    return *this;
-  }
-  Iterator& operator-=(DifferenceType n) {
-    ptr_ -= n;
-    return *this;
-  }
-  //@}
-
-  //! @name relations
-  //@{
-  bool operator==(ConstIterator that) const { return ptr_ == that.ptr_; }
-  bool operator!=(ConstIterator that) const { return ptr_ != that.ptr_; }
-  bool operator<=(ConstIterator that) const { return ptr_ <= that.ptr_; }
-  bool operator>=(ConstIterator that) const { return ptr_ >= that.ptr_; }
-  bool operator<(ConstIterator that) const { return ptr_ < that.ptr_; }
-  bool operator>(ConstIterator that) const { return ptr_ > that.ptr_; }
-  //@}
-
-  //! @name dereference
-  //@{
-  Reference operator*() const { return *ptr_; }
-  Pointer operator->() const { return ptr_; }
-  Reference operator[](DifferenceType n) const { return ptr_[n]; }
-  //@}
-
-  //! Distance
-  DifferenceType operator-(ConstIterator that) const {
-    return ptr_ - that.ptr_;
-  }
-
- private:
-  //! Internal constructor from plain pointer
-  explicit GenericMemberIterator(Pointer p) : ptr_(p) {}
-
-  Pointer ptr_;  //!< raw pointer
-};
-
-#else  // RAPIDJSON_NOMEMBERITERATORCLASS
-
-// class-based member iterator implementation disabled, use plain pointers
-
-template <bool Const, typename Encoding, typename Allocator>
-struct GenericMemberIterator;
-
-//! non-const GenericMemberIterator
-template <typename Encoding, typename Allocator>
-struct GenericMemberIterator<false, Encoding, Allocator> {
-  //! use plain pointer as iterator type
-  typedef GenericMember<Encoding, Allocator>* Iterator;
-};
-//! const GenericMemberIterator
-template <typename Encoding, typename Allocator>
-struct GenericMemberIterator<true, Encoding, Allocator> {
-  //! use plain const pointer as iterator type
-  typedef const GenericMember<Encoding, Allocator>* Iterator;
-};
-
-#endif  // RAPIDJSON_NOMEMBERITERATORCLASS
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericStringRef
-
-//! Reference to a constant string (not taking a copy)
-/*!
-    \tparam CharType character type of the string
-
-    This helper class is used to automatically infer constant string
-    references for string literals, especially from \c const \b (!)
-    character arrays.
-
-    The main use is for creating JSON string values without copying the
-    source string via an \ref Allocator.  This requires that the referenced
-    string pointers have a sufficient lifetime, which exceeds the lifetime
-    of the associated GenericValue.
-
-    \b Example
-    \code
-    Value v("foo");   // ok, no need to copy & calculate length
-    const char foo[] = "foo";
-    v.SetString(foo); // ok
-
-    const char* bar = foo;
-    // Value x(bar); // not ok, can't rely on bar's lifetime
-    Value x(StringRef(bar)); // lifetime explicitly guaranteed by user
-    Value y(StringRef(bar, 3));  // ok, explicitly pass length
-    \endcode
-
-    \see StringRef, GenericValue::SetString
-*/
-template <typename CharType>
-struct GenericStringRef {
-  typedef CharType Ch;  //!< character type of the string
-
-  //! Create string reference from \c const character array
-#ifndef __clang__  // -Wdocumentation
-                   /*!
-                       This constructor implicitly creates a constant string reference from
-                       a \c const character array.  It has better performance than
-                       \ref StringRef(const CharType*) by inferring the string \ref length
-                       from the array length, and also supports strings containing null
-                       characters.
-
-                       \tparam N length of the string, automatically inferred
-
-                       \param str Constant character array, lifetime assumed to be longer
-                           than the use of the string in e.g. a GenericValue
-
-                       \post \ref s == str
-
-                       \note Constant complexity.
-                       \note There is a hidden, private overload to disallow references to
-                           non-const character arrays to be created via this constructor.
-                           By this, e.g. function-scope arrays used to be filled via
-                           \c snprintf are excluded from consideration.
-                           In such cases, the referenced string should be \b copied to the
-                           GenericValue instead.
-                    */
-#endif
-  template <SizeType N>
-  GenericStringRef(const CharType (&str)[N]) RAPIDJSON_NOEXCEPT
-      : s(str),
-        length(N - 1) {}
-
-  //! Explicitly create string reference from \c const character pointer
-#ifndef __clang__  // -Wdocumentation
-                   /*!
-                       This constructor can be used to \b explicitly  create a reference to
-                       a constant string pointer.
-
-                       \see StringRef(const CharType*)
-
-                       \param str Constant character pointer, lifetime assumed to be longer
-                           than the use of the string in e.g. a GenericValue
-
-                       \post \ref s == str
-
-                       \note There is a hidden, private overload to disallow references to
-                           non-const character arrays to be created via this constructor.
-                           By this, e.g. function-scope arrays used to be filled via
-                           \c snprintf are excluded from consideration.
-                           In such cases, the referenced string should be \b copied to the
-                           GenericValue instead.
-                    */
-#endif
-  explicit GenericStringRef(const CharType* str)
-      : s(str), length(internal::StrLen(str)) {
-    RAPIDJSON_ASSERT(s != 0);
-  }
-
-  //! Create constant string reference from pointer and length
-#ifndef __clang__  // -Wdocumentation
-  /*! \param str constant string, lifetime assumed to be longer than the use of
-     the string in e.g. a GenericValue \param len length of the string,
-     excluding the trailing NULL terminator
-
-      \post \ref s == str && \ref length == len
-      \note Constant complexity.
-   */
-#endif
-  GenericStringRef(const CharType* str, SizeType len) : s(str), length(len) {
-    RAPIDJSON_ASSERT(s != 0);
-  }
-
-  GenericStringRef(const GenericStringRef& rhs)
-      : s(rhs.s), length(rhs.length) {}
-
-  GenericStringRef& operator=(const GenericStringRef& rhs) {
-    s = rhs.s;
-    length = rhs.length;
-  }
-
-  //! implicit conversion to plain CharType pointer
-  operator const Ch*() const { return s; }
-
-  const Ch* const s;      //!< plain CharType pointer
-  const SizeType length;  //!< length of the string (excluding the trailing NULL
-                          //!< terminator)
-
- private:
-  //! Disallow construction from non-const array
-  template <SizeType N>
-  GenericStringRef(CharType (&str)[N]) /* = delete */;
-};
-
-//! Mark a character pointer as constant string
-/*! Mark a plain character pointer as a "string literal".  This function
-    can be used to avoid copying a character string to be referenced as a
-    value in a JSON GenericValue object, if the string's lifetime is known
-    to be valid long enough.
-    \tparam CharType Character type of the string
-    \param str Constant string, lifetime assumed to be longer than the use of
-   the string in e.g. a GenericValue \return GenericStringRef string reference
-   object \relatesalso GenericStringRef
-
-    \see GenericValue::GenericValue(StringRefType),
-   GenericValue::operator=(StringRefType),
-   GenericValue::SetString(StringRefType), GenericValue::PushBack(StringRefType,
-   Allocator&), GenericValue::AddMember
-*/
-template <typename CharType>
-inline GenericStringRef<CharType> StringRef(const CharType* str) {
-  return GenericStringRef<CharType>(str, internal::StrLen(str));
-}
-
-//! Mark a character pointer as constant string
-/*! Mark a plain character pointer as a "string literal".  This function
-    can be used to avoid copying a character string to be referenced as a
-    value in a JSON GenericValue object, if the string's lifetime is known
-    to be valid long enough.
-
-    This version has better performance with supplied length, and also
-    supports string containing null characters.
-
-    \tparam CharType character type of the string
-    \param str Constant string, lifetime assumed to be longer than the use of
-   the string in e.g. a GenericValue \param length The length of source string.
-    \return GenericStringRef string reference object
-    \relatesalso GenericStringRef
-*/
-template <typename CharType>
-inline GenericStringRef<CharType> StringRef(const CharType* str,
-                                            size_t length) {
-  return GenericStringRef<CharType>(str, SizeType(length));
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-//! Mark a string object as constant string
-/*! Mark a string object (e.g. \c std::string) as a "string literal".
-    This function can be used to avoid copying a string to be referenced as a
-    value in a JSON GenericValue object, if the string's lifetime is known
-    to be valid long enough.
-
-    \tparam CharType character type of the string
-    \param str Constant string, lifetime assumed to be longer than the use of
-   the string in e.g. a GenericValue \return GenericStringRef string reference
-   object \relatesalso GenericStringRef \note Requires the definition of the
-   preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING.
-*/
-template <typename CharType>
-inline GenericStringRef<CharType> StringRef(
-    const std::basic_string<CharType>& str) {
-  return GenericStringRef<CharType>(str.data(), SizeType(str.size()));
-}
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericValue type traits
-namespace internal {
-
-template <typename T, typename Encoding = void, typename Allocator = void>
-struct IsGenericValueImpl : FalseType {};
-
-// select candidates according to nested encoding and allocator types
-template <typename T>
-struct IsGenericValueImpl<T,
-                          typename Void<typename T::EncodingType>::Type,
-                          typename Void<typename T::AllocatorType>::Type>
-    : IsBaseOf<
-          GenericValue<typename T::EncodingType, typename T::AllocatorType>,
-          T>::Type {};
-
-// helper to match arbitrary GenericValue instantiations, including derived
-// classes
-template <typename T>
-struct IsGenericValue : IsGenericValueImpl<T>::Type {};
-
-}  // namespace internal
-
-///////////////////////////////////////////////////////////////////////////////
-// TypeHelper
-
-namespace internal {
-
-template <typename ValueType, typename T>
-struct TypeHelper {};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, bool> {
-  static bool Is(const ValueType& v) { return v.IsBool(); }
-  static bool Get(const ValueType& v) { return v.GetBool(); }
-  static ValueType& Set(ValueType& v, bool data) { return v.SetBool(data); }
-  static ValueType& Set(ValueType& v,
-                        bool data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetBool(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, int> {
-  static bool Is(const ValueType& v) { return v.IsInt(); }
-  static int Get(const ValueType& v) { return v.GetInt(); }
-  static ValueType& Set(ValueType& v, int data) { return v.SetInt(data); }
-  static ValueType& Set(ValueType& v,
-                        int data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetInt(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, unsigned> {
-  static bool Is(const ValueType& v) { return v.IsUint(); }
-  static unsigned Get(const ValueType& v) { return v.GetUint(); }
-  static ValueType& Set(ValueType& v, unsigned data) { return v.SetUint(data); }
-  static ValueType& Set(ValueType& v,
-                        unsigned data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetUint(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, int64_t> {
-  static bool Is(const ValueType& v) { return v.IsInt64(); }
-  static int64_t Get(const ValueType& v) { return v.GetInt64(); }
-  static ValueType& Set(ValueType& v, int64_t data) { return v.SetInt64(data); }
-  static ValueType& Set(ValueType& v,
-                        int64_t data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetInt64(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, uint64_t> {
-  static bool Is(const ValueType& v) { return v.IsUint64(); }
-  static uint64_t Get(const ValueType& v) { return v.GetUint64(); }
-  static ValueType& Set(ValueType& v, uint64_t data) {
-    return v.SetUint64(data);
-  }
-  static ValueType& Set(ValueType& v,
-                        uint64_t data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetUint64(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, double> {
-  static bool Is(const ValueType& v) { return v.IsDouble(); }
-  static double Get(const ValueType& v) { return v.GetDouble(); }
-  static ValueType& Set(ValueType& v, double data) { return v.SetDouble(data); }
-  static ValueType& Set(ValueType& v,
-                        double data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetDouble(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, float> {
-  static bool Is(const ValueType& v) { return v.IsFloat(); }
-  static float Get(const ValueType& v) { return v.GetFloat(); }
-  static ValueType& Set(ValueType& v, float data) { return v.SetFloat(data); }
-  static ValueType& Set(ValueType& v,
-                        float data,
-                        typename ValueType::AllocatorType&) {
-    return v.SetFloat(data);
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, const typename ValueType::Ch*> {
-  typedef const typename ValueType::Ch* StringType;
-  static bool Is(const ValueType& v) { return v.IsString(); }
-  static StringType Get(const ValueType& v) { return v.GetString(); }
-  static ValueType& Set(ValueType& v, const StringType data) {
-    return v.SetString(typename ValueType::StringRefType(data));
-  }
-  static ValueType& Set(ValueType& v,
-                        const StringType data,
-                        typename ValueType::AllocatorType& a) {
-    return v.SetString(data, a);
-  }
-};
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename ValueType>
-struct TypeHelper<ValueType, std::basic_string<typename ValueType::Ch> > {
-  typedef std::basic_string<typename ValueType::Ch> StringType;
-  static bool Is(const ValueType& v) { return v.IsString(); }
-  static StringType Get(const ValueType& v) {
-    return StringType(v.GetString(), v.GetStringLength());
-  }
-  static ValueType& Set(ValueType& v,
-                        const StringType& data,
-                        typename ValueType::AllocatorType& a) {
-    return v.SetString(data, a);
-  }
-};
-#endif
-
-template <typename ValueType>
-struct TypeHelper<ValueType, typename ValueType::Array> {
-  typedef typename ValueType::Array ArrayType;
-  static bool Is(const ValueType& v) { return v.IsArray(); }
-  static ArrayType Get(ValueType& v) { return v.GetArray(); }
-  static ValueType& Set(ValueType& v, ArrayType data) { return v = data; }
-  static ValueType& Set(ValueType& v,
-                        ArrayType data,
-                        typename ValueType::AllocatorType&) {
-    return v = data;
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, typename ValueType::ConstArray> {
-  typedef typename ValueType::ConstArray ArrayType;
-  static bool Is(const ValueType& v) { return v.IsArray(); }
-  static ArrayType Get(const ValueType& v) { return v.GetArray(); }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, typename ValueType::Object> {
-  typedef typename ValueType::Object ObjectType;
-  static bool Is(const ValueType& v) { return v.IsObject(); }
-  static ObjectType Get(ValueType& v) { return v.GetObject(); }
-  static ValueType& Set(ValueType& v, ObjectType data) { return v = data; }
-  static ValueType& Set(ValueType& v,
-                        ObjectType data,
-                        typename ValueType::AllocatorType&) {
-    v = data;
-  }
-};
-
-template <typename ValueType>
-struct TypeHelper<ValueType, typename ValueType::ConstObject> {
-  typedef typename ValueType::ConstObject ObjectType;
-  static bool Is(const ValueType& v) { return v.IsObject(); }
-  static ObjectType Get(const ValueType& v) { return v.GetObject(); }
-};
-
-}  // namespace internal
-
-// Forward declarations
-template <bool, typename>
-class GenericArray;
-template <bool, typename>
-class GenericObject;
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericValue
-
-//! Represents a JSON value. Use Value for UTF8 encoding and default allocator.
-/*!
-    A JSON value can be one of 7 types. This class is a variant type supporting
-    these types.
-
-    Use the Value if UTF8 and default allocator
-
-    \tparam Encoding    Encoding of the value. (Even non-string values need to
-   have the same encoding in a document) \tparam Allocator   Allocator type for
-   allocating memory of object, array and string.
-*/
-template <typename Encoding, typename Allocator = MemoryPoolAllocator<> >
-class GenericValue {
- public:
-  //! Name-value pair in an object.
-  typedef GenericMember<Encoding, Allocator> Member;
-  typedef Encoding EncodingType;    //!< Encoding type from template parameter.
-  typedef Allocator AllocatorType;  //!< Allocator type from template parameter.
-  typedef typename Encoding::Ch Ch;  //!< Character type derived from Encoding.
-  typedef GenericStringRef<Ch>
-      StringRefType;  //!< Reference to a constant string
-  typedef typename GenericMemberIterator<false, Encoding, Allocator>::Iterator
-      MemberIterator;  //!< Member iterator for iterating in object.
-  typedef typename GenericMemberIterator<true, Encoding, Allocator>::Iterator
-      ConstMemberIterator;  //!< Constant member iterator for iterating in
-                            //!< object.
-  typedef GenericValue*
-      ValueIterator;  //!< Value iterator for iterating in array.
-  typedef const GenericValue*
-      ConstValueIterator;  //!< Constant value iterator for iterating in array.
-  typedef GenericValue<Encoding, Allocator>
-      ValueType;  //!< Value type of itself.
-  typedef GenericArray<false, ValueType> Array;
-  typedef GenericArray<true, ValueType> ConstArray;
-  typedef GenericObject<false, ValueType> Object;
-  typedef GenericObject<true, ValueType> ConstObject;
-
-  //!@name Constructors and destructor.
-  //@{
-
-  //! Default constructor creates a null value.
-  GenericValue() RAPIDJSON_NOEXCEPT : data_() { data_.f.flags = kNullFlag; }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  //! Move constructor in C++11
-  GenericValue(GenericValue&& rhs) RAPIDJSON_NOEXCEPT : data_(rhs.data_) {
-    rhs.data_.f.flags = kNullFlag;  // give up contents
-  }
-#endif
-
- private:
-  //! Copy constructor is not permitted.
-  GenericValue(const GenericValue& rhs);
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  //! Moving from a GenericDocument is not permitted.
-  template <typename StackAllocator>
-  GenericValue(GenericDocument<Encoding, Allocator, StackAllocator>&& rhs);
-
-  //! Move assignment from a GenericDocument is not permitted.
-  template <typename StackAllocator>
-  GenericValue& operator=(
-      GenericDocument<Encoding, Allocator, StackAllocator>&& rhs);
-#endif
-
- public:
-  //! Constructor with JSON value type.
-  /*! This creates a Value of specified type with default content.
-      \param type Type of the value.
-      \note Default content for number is zero.
-  */
-  explicit GenericValue(Type type) RAPIDJSON_NOEXCEPT : data_() {
-    static const uint16_t defaultFlags[7] = {
-        kNullFlag,  kFalseFlag,       kTrueFlag,     kObjectFlag,
-        kArrayFlag, kShortStringFlag, kNumberAnyFlag};
-    RAPIDJSON_ASSERT(type <= kNumberType);
-    data_.f.flags = defaultFlags[type];
-
-    // Use ShortString to store empty string.
-    if (type == kStringType)
-      data_.ss.SetLength(0);
-  }
-
-  //! Explicit copy constructor (with allocator)
-  /*! Creates a copy of a Value by using the given Allocator
-      \tparam SourceAllocator allocator of \c rhs
-      \param rhs Value to copy from (read-only)
-      \param allocator Allocator for allocating copied elements and buffers.
-     Commonly use GenericDocument::GetAllocator(). \see CopyFrom()
-  */
-  template <typename SourceAllocator>
-  GenericValue(const GenericValue<Encoding, SourceAllocator>& rhs,
-               Allocator& allocator);
-
-  //! Constructor for boolean value.
-  /*! \param b Boolean value
-      \note This constructor is limited to \em real boolean values and rejects
-          implicitly converted types like arbitrary pointers.  Use an explicit
-     cast to \c bool, if you want to construct a boolean JSON value in such
-     cases.
-   */
-#ifndef RAPIDJSON_DOXYGEN_RUNNING  // hide SFINAE from Doxygen
-  template <typename T>
-  explicit GenericValue(T b, RAPIDJSON_ENABLEIF((internal::IsSame<bool, T>)))
-      RAPIDJSON_NOEXCEPT  // See #472
-#else
-  explicit GenericValue(bool b) RAPIDJSON_NOEXCEPT
-#endif
-      : data_() {
-    // safe-guard against failing SFINAE
-    RAPIDJSON_STATIC_ASSERT((internal::IsSame<bool, T>::Value));
-    data_.f.flags = b ? kTrueFlag : kFalseFlag;
-  }
-
-  //! Constructor for int value.
-  explicit GenericValue(int i) RAPIDJSON_NOEXCEPT : data_() {
-    data_.n.i64 = i;
-    data_.f.flags =
-        (i >= 0) ? (kNumberIntFlag | kUintFlag | kUint64Flag) : kNumberIntFlag;
-  }
-
-  //! Constructor for unsigned value.
-  explicit GenericValue(unsigned u) RAPIDJSON_NOEXCEPT : data_() {
-    data_.n.u64 = u;
-    data_.f.flags = (u & 0x80000000)
-                        ? kNumberUintFlag
-                        : (kNumberUintFlag | kIntFlag | kInt64Flag);
-  }
-
-  //! Constructor for int64_t value.
-  explicit GenericValue(int64_t i64) RAPIDJSON_NOEXCEPT : data_() {
-    data_.n.i64 = i64;
-    data_.f.flags = kNumberInt64Flag;
-    if (i64 >= 0) {
-      data_.f.flags |= kNumberUint64Flag;
-      if (!(static_cast<uint64_t>(i64) &
-            RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x00000000)))
-        data_.f.flags |= kUintFlag;
-      if (!(static_cast<uint64_t>(i64) &
-            RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000)))
-        data_.f.flags |= kIntFlag;
-    } else if (i64 >= static_cast<int64_t>(
-                          RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000)))
-      data_.f.flags |= kIntFlag;
-  }
-
-  //! Constructor for uint64_t value.
-  explicit GenericValue(uint64_t u64) RAPIDJSON_NOEXCEPT : data_() {
-    data_.n.u64 = u64;
-    data_.f.flags = kNumberUint64Flag;
-    if (!(u64 & RAPIDJSON_UINT64_C2(0x80000000, 0x00000000)))
-      data_.f.flags |= kInt64Flag;
-    if (!(u64 & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x00000000)))
-      data_.f.flags |= kUintFlag;
-    if (!(u64 & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000)))
-      data_.f.flags |= kIntFlag;
-  }
-
-  //! Constructor for double value.
-  explicit GenericValue(double d) RAPIDJSON_NOEXCEPT : data_() {
-    data_.n.d = d;
-    data_.f.flags = kNumberDoubleFlag;
-  }
-
-  //! Constructor for constant string (i.e. do not make a copy of string)
-  GenericValue(const Ch* s, SizeType length) RAPIDJSON_NOEXCEPT : data_() {
-    SetStringRaw(StringRef(s, length));
-  }
-
-  //! Constructor for constant string (i.e. do not make a copy of string)
-  explicit GenericValue(StringRefType s) RAPIDJSON_NOEXCEPT : data_() {
-    SetStringRaw(s);
-  }
-
-  //! Constructor for copy-string (i.e. do make a copy of string)
-  GenericValue(const Ch* s, SizeType length, Allocator& allocator) : data_() {
-    SetStringRaw(StringRef(s, length), allocator);
-  }
-
-  //! Constructor for copy-string (i.e. do make a copy of string)
-  GenericValue(const Ch* s, Allocator& allocator) : data_() {
-    SetStringRaw(StringRef(s), allocator);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Constructor for copy-string from a string object (i.e. do make a copy of
-  //! string)
-  /*! \note Requires the definition of the preprocessor symbol \ref
-   * RAPIDJSON_HAS_STDSTRING.
-   */
-  GenericValue(const std::basic_string<Ch>& s, Allocator& allocator) : data_() {
-    SetStringRaw(StringRef(s), allocator);
-  }
-#endif
-
-  //! Constructor for Array.
-  /*!
-      \param a An array obtained by \c GetArray().
-      \note \c Array is always pass-by-value.
-      \note the source array is moved into this value and the sourec array
-     becomes empty.
-  */
-  GenericValue(Array a) RAPIDJSON_NOEXCEPT : data_(a.value_.data_) {
-    a.value_.data_ = Data();
-    a.value_.data_.f.flags = kArrayFlag;
-  }
-
-  //! Constructor for Object.
-  /*!
-      \param o An object obtained by \c GetObject().
-      \note \c Object is always pass-by-value.
-      \note the source object is moved into this value and the sourec object
-     becomes empty.
-  */
-  GenericValue(Object o) RAPIDJSON_NOEXCEPT : data_(o.value_.data_) {
-    o.value_.data_ = Data();
-    o.value_.data_.f.flags = kObjectFlag;
-  }
-
-  //! Destructor.
-  /*! Need to destruct elements of array, members of object, or copy-string.
-   */
-  ~GenericValue() {
-    if (Allocator::kNeedFree) {  // Shortcut by Allocator's trait
-      switch (data_.f.flags) {
-        case kArrayFlag: {
-          GenericValue* e = GetElementsPointer();
-          for (GenericValue* v = e; v != e + data_.a.size; ++v)
-            v->~GenericValue();
-          Allocator::Free(e);
-        } break;
-
-        case kObjectFlag:
-          for (MemberIterator m = MemberBegin(); m != MemberEnd(); ++m)
-            m->~Member();
-          Allocator::Free(GetMembersPointer());
-          break;
-
-        case kCopyStringFlag:
-          Allocator::Free(const_cast<Ch*>(GetStringPointer()));
-          break;
-
-        default:
-          break;  // Do nothing for other types.
-      }
-    }
-  }
-
-  //@}
-
-  //!@name Assignment operators
-  //@{
-
-  //! Assignment with move semantics.
-  /*! \param rhs Source of the assignment. It will become a null value after
-   * assignment.
-   */
-  GenericValue& operator=(GenericValue& rhs) RAPIDJSON_NOEXCEPT {
-    RAPIDJSON_ASSERT(this != &rhs);
-    this->~GenericValue();
-    RawAssign(rhs);
-    return *this;
-  }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  //! Move assignment in C++11
-  GenericValue& operator=(GenericValue&& rhs) RAPIDJSON_NOEXCEPT {
-    return *this = rhs.Move();
-  }
-#endif
-
-  //! Assignment of constant string reference (no copy)
-  /*! \param str Constant string reference to be assigned
-      \note This overload is needed to avoid clashes with the generic primitive
-     type assignment overload below. \see GenericStringRef, operator=(T)
-  */
-  GenericValue& operator=(StringRefType str) RAPIDJSON_NOEXCEPT {
-    GenericValue s(str);
-    return *this = s;
-  }
-
-  //! Assignment with primitive types.
-  /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
-      \param value The value to be assigned.
-
-      \note The source type \c T explicitly disallows all pointer types,
-          especially (\c const) \ref Ch*.  This helps avoiding implicitly
-          referencing character strings with insufficient lifetime, use
-          \ref SetString(const Ch*, Allocator&) (for copying) or
-          \ref StringRef() (to explicitly mark the pointer as constant) instead.
-          All other pointer types would implicitly convert to \c bool,
-          use \ref SetBool() instead.
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN((internal::IsPointer<T>), (GenericValue&))
-  operator=(T value) {
-    GenericValue v(value);
-    return *this = v;
-  }
-
-  //! Deep-copy assignment from Value
-  /*! Assigns a \b copy of the Value to the current Value object
-      \tparam SourceAllocator Allocator type of \c rhs
-      \param rhs Value to copy from (read-only)
-      \param allocator Allocator to use for copying
-   */
-  template <typename SourceAllocator>
-  GenericValue& CopyFrom(const GenericValue<Encoding, SourceAllocator>& rhs,
-                         Allocator& allocator) {
-    RAPIDJSON_ASSERT(static_cast<void*>(this) !=
-                     static_cast<void const*>(&rhs));
-    this->~GenericValue();
-    new (this) GenericValue(rhs, allocator);
-    return *this;
-  }
-
-  //! Exchange the contents of this value with those of other.
-  /*!
-      \param other Another value.
-      \note Constant complexity.
-  */
-  GenericValue& Swap(GenericValue& other) RAPIDJSON_NOEXCEPT {
-    GenericValue temp;
-    temp.RawAssign(*this);
-    RawAssign(other);
-    other.RawAssign(temp);
-    return *this;
-  }
-
-  //! free-standing swap function helper
-  /*!
-      Helper function to enable support for common swap implementation pattern
-     based on \c std::swap: \code void swap(MyClass& a, MyClass& b) { using
-     std::swap; swap(a.value, b.value);
-          // ...
-      }
-      \endcode
-      \see Swap()
-   */
-  friend inline void swap(GenericValue& a, GenericValue& b) RAPIDJSON_NOEXCEPT {
-    a.Swap(b);
-  }
-
-  //! Prepare Value for move semantics
-  /*! \return *this */
-  GenericValue& Move() RAPIDJSON_NOEXCEPT { return *this; }
-  //@}
-
-  //!@name Equal-to and not-equal-to operators
-  //@{
-  //! Equal-to operator
-  /*!
-      \note If an object contains duplicated named member, comparing equality
-     with any object is always \c false. \note Linear time complexity (number of
-     all values in the subtree and total lengths of all strings).
-  */
-  template <typename SourceAllocator>
-  bool operator==(const GenericValue<Encoding, SourceAllocator>& rhs) const {
-    typedef GenericValue<Encoding, SourceAllocator> RhsType;
-    if (GetType() != rhs.GetType())
-      return false;
-
-    switch (GetType()) {
-      case kObjectType:  // Warning: O(n^2) inner-loop
-        if (data_.o.size != rhs.data_.o.size)
-          return false;
-        for (ConstMemberIterator lhsMemberItr = MemberBegin();
-             lhsMemberItr != MemberEnd(); ++lhsMemberItr) {
-          typename RhsType::ConstMemberIterator rhsMemberItr =
-              rhs.FindMember(lhsMemberItr->name);
-          if (rhsMemberItr == rhs.MemberEnd() ||
-              lhsMemberItr->value != rhsMemberItr->value)
-            return false;
-        }
-        return true;
-
-      case kArrayType:
-        if (data_.a.size != rhs.data_.a.size)
-          return false;
-        for (SizeType i = 0; i < data_.a.size; i++)
-          if ((*this)[i] != rhs[i])
-            return false;
-        return true;
-
-      case kStringType:
-        return StringEqual(rhs);
-
-      case kNumberType:
-        if (IsDouble() || rhs.IsDouble()) {
-          double a = GetDouble();      // May convert from integer to double.
-          double b = rhs.GetDouble();  // Ditto
-          return a >= b && a <= b;     // Prevent -Wfloat-equal
-        } else
-          return data_.n.u64 == rhs.data_.n.u64;
-
-      default:
-        return true;
-    }
-  }
-
-  //! Equal-to operator with const C-string pointer
-  bool operator==(const Ch* rhs) const {
-    return *this == GenericValue(StringRef(rhs));
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Equal-to operator with string object
-  /*! \note Requires the definition of the preprocessor symbol \ref
-   * RAPIDJSON_HAS_STDSTRING.
-   */
-  bool operator==(const std::basic_string<Ch>& rhs) const {
-    return *this == GenericValue(StringRef(rhs));
-  }
-#endif
-
-  //! Equal-to operator with primitive types
-  /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t,
-   * \c double, \c true, \c false
-   */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (bool))
-  operator==(const T& rhs) const {
-    return *this == GenericValue(rhs);
-  }
-
-  //! Not-equal-to operator
-  /*! \return !(*this == rhs)
-   */
-  template <typename SourceAllocator>
-  bool operator!=(const GenericValue<Encoding, SourceAllocator>& rhs) const {
-    return !(*this == rhs);
-  }
-
-  //! Not-equal-to operator with const C-string pointer
-  bool operator!=(const Ch* rhs) const { return !(*this == rhs); }
-
-  //! Not-equal-to operator with arbitrary types
-  /*! \return !(*this == rhs)
-   */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool))
-  operator!=(const T& rhs) const {
-    return !(*this == rhs);
-  }
-
-  //! Equal-to operator with arbitrary types (symmetric version)
-  /*! \return (rhs == lhs)
-   */
-  template <typename T>
-  friend RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool))
-  operator==(const T& lhs, const GenericValue& rhs) {
-    return rhs == lhs;
-  }
-
-  //! Not-Equal-to operator with arbitrary types (symmetric version)
-  /*! \return !(rhs == lhs)
-   */
-  template <typename T>
-  friend RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool))
-  operator!=(const T& lhs, const GenericValue& rhs) {
-    return !(rhs == lhs);
-  }
-  //@}
-
-  //!@name Type
-  //@{
-
-  Type GetType() const { return static_cast<Type>(data_.f.flags & kTypeMask); }
-  bool IsNull() const { return data_.f.flags == kNullFlag; }
-  bool IsFalse() const { return data_.f.flags == kFalseFlag; }
-  bool IsTrue() const { return data_.f.flags == kTrueFlag; }
-  bool IsBool() const { return (data_.f.flags & kBoolFlag) != 0; }
-  bool IsObject() const { return data_.f.flags == kObjectFlag; }
-  bool IsArray() const { return data_.f.flags == kArrayFlag; }
-  bool IsNumber() const { return (data_.f.flags & kNumberFlag) != 0; }
-  bool IsInt() const { return (data_.f.flags & kIntFlag) != 0; }
-  bool IsUint() const { return (data_.f.flags & kUintFlag) != 0; }
-  bool IsInt64() const { return (data_.f.flags & kInt64Flag) != 0; }
-  bool IsUint64() const { return (data_.f.flags & kUint64Flag) != 0; }
-  bool IsDouble() const { return (data_.f.flags & kDoubleFlag) != 0; }
-  bool IsString() const { return (data_.f.flags & kStringFlag) != 0; }
-
-  // Checks whether a number can be losslessly converted to a double.
-  bool IsLosslessDouble() const {
-    if (!IsNumber())
-      return false;
-    if (IsUint64()) {
-      uint64_t u = GetUint64();
-      volatile double d = static_cast<double>(u);
-      return (d >= 0.0) &&
-             (d < static_cast<double>(std::numeric_limits<uint64_t>::max())) &&
-             (u == static_cast<uint64_t>(d));
-    }
-    if (IsInt64()) {
-      int64_t i = GetInt64();
-      volatile double d = static_cast<double>(i);
-      return (d >= static_cast<double>(std::numeric_limits<int64_t>::min())) &&
-             (d < static_cast<double>(std::numeric_limits<int64_t>::max())) &&
-             (i == static_cast<int64_t>(d));
-    }
-    return true;  // double, int, uint are always lossless
-  }
-
-  // Checks whether a number is a float (possible lossy).
-  bool IsFloat() const {
-    if ((data_.f.flags & kDoubleFlag) == 0)
-      return false;
-    double d = GetDouble();
-    return d >= -3.4028234e38 && d <= 3.4028234e38;
-  }
-  // Checks whether a number can be losslessly converted to a float.
-  bool IsLosslessFloat() const {
-    if (!IsNumber())
-      return false;
-    double a = GetDouble();
-    if (a < static_cast<double>(-std::numeric_limits<float>::max()) ||
-        a > static_cast<double>(std::numeric_limits<float>::max()))
-      return false;
-    double b = static_cast<double>(static_cast<float>(a));
-    return a >= b && a <= b;  // Prevent -Wfloat-equal
-  }
-
-  //@}
-
-  //!@name Null
-  //@{
-
-  GenericValue& SetNull() {
-    this->~GenericValue();
-    new (this) GenericValue();
-    return *this;
-  }
-
-  //@}
-
-  //!@name Bool
-  //@{
-
-  bool GetBool() const {
-    RAPIDJSON_ASSERT(IsBool());
-    return data_.f.flags == kTrueFlag;
-  }
-  //!< Set boolean value
-  /*! \post IsBool() == true */
-  GenericValue& SetBool(bool b) {
-    this->~GenericValue();
-    new (this) GenericValue(b);
-    return *this;
-  }
-
-  //@}
-
-  //!@name Object
-  //@{
-
-  //! Set this value as an empty object.
-  /*! \post IsObject() == true */
-  GenericValue& SetObject() {
-    this->~GenericValue();
-    new (this) GenericValue(kObjectType);
-    return *this;
-  }
-
-  //! Get the number of members in the object.
-  SizeType MemberCount() const {
-    RAPIDJSON_ASSERT(IsObject());
-    return data_.o.size;
-  }
-
-  //! Check whether the object is empty.
-  bool ObjectEmpty() const {
-    RAPIDJSON_ASSERT(IsObject());
-    return data_.o.size == 0;
-  }
-
-  //! Get a value from an object associated with the name.
-  /*! \pre IsObject() == true
-      \tparam T Either \c Ch or \c const \c Ch (template used for disambiguation
-     with \ref operator[](SizeType)) \note In version 0.1x, if the member is not
-     found, this function returns a null value. This makes issue 7. Since 0.2,
-     if the name is not correct, it will assert. If user is unsure whether a
-     member exists, user should use HasMember() first. A better approach is to
-     use FindMember(). \note Linear time complexity.
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::NotExpr<
-          internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >),
-      (GenericValue&))
-  operator[](T* name) {
-    GenericValue n(StringRef(name));
-    return (*this)[n];
-  }
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::NotExpr<
-          internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >),
-      (const GenericValue&))
-  operator[](T* name) const {
-    return const_cast<GenericValue&>(*this)[name];
-  }
-
-  //! Get a value from an object associated with the name.
-  /*! \pre IsObject() == true
-      \tparam SourceAllocator Allocator of the \c name value
-
-      \note Compared to \ref operator[](T*), this version is faster because it
-     does not need a StrLen(). And it can also handle strings with embedded null
-     characters.
-
-      \note Linear time complexity.
-  */
-  template <typename SourceAllocator>
-  GenericValue& operator[](
-      const GenericValue<Encoding, SourceAllocator>& name) {
-    MemberIterator member = FindMember(name);
-    if (member != MemberEnd())
-      return member->value;
-    else {
-      RAPIDJSON_ASSERT(false);  // see above note
-
-      // This will generate -Wexit-time-destructors in clang
-      // static GenericValue NullValue;
-      // return NullValue;
-
-      // Use static buffer and placement-new to prevent destruction
-      static char buffer[sizeof(GenericValue)];
-      return *new (buffer) GenericValue();
-    }
-  }
-  template <typename SourceAllocator>
-  const GenericValue& operator[](
-      const GenericValue<Encoding, SourceAllocator>& name) const {
-    return const_cast<GenericValue&>(*this)[name];
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Get a value from an object associated with name (string object).
-  GenericValue& operator[](const std::basic_string<Ch>& name) {
-    return (*this)[GenericValue(StringRef(name))];
-  }
-  const GenericValue& operator[](const std::basic_string<Ch>& name) const {
-    return (*this)[GenericValue(StringRef(name))];
-  }
-#endif
-
-  //! Const member iterator
-  /*! \pre IsObject() == true */
-  ConstMemberIterator MemberBegin() const {
-    RAPIDJSON_ASSERT(IsObject());
-    return ConstMemberIterator(GetMembersPointer());
-  }
-  //! Const \em past-the-end member iterator
-  /*! \pre IsObject() == true */
-  ConstMemberIterator MemberEnd() const {
-    RAPIDJSON_ASSERT(IsObject());
-    return ConstMemberIterator(GetMembersPointer() + data_.o.size);
-  }
-  //! Member iterator
-  /*! \pre IsObject() == true */
-  MemberIterator MemberBegin() {
-    RAPIDJSON_ASSERT(IsObject());
-    return MemberIterator(GetMembersPointer());
-  }
-  //! \em Past-the-end member iterator
-  /*! \pre IsObject() == true */
-  MemberIterator MemberEnd() {
-    RAPIDJSON_ASSERT(IsObject());
-    return MemberIterator(GetMembersPointer() + data_.o.size);
-  }
-
-  //! Check whether a member exists in the object.
-  /*!
-      \param name Member name to be searched.
-      \pre IsObject() == true
-      \return Whether a member with that name exists.
-      \note It is better to use FindMember() directly if you need the obtain the
-     value as well. \note Linear time complexity.
-  */
-  bool HasMember(const Ch* name) const {
-    return FindMember(name) != MemberEnd();
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Check whether a member exists in the object with string object.
-  /*!
-      \param name Member name to be searched.
-      \pre IsObject() == true
-      \return Whether a member with that name exists.
-      \note It is better to use FindMember() directly if you need the obtain the
-     value as well. \note Linear time complexity.
-  */
-  bool HasMember(const std::basic_string<Ch>& name) const {
-    return FindMember(name) != MemberEnd();
-  }
-#endif
-
-  //! Check whether a member exists in the object with GenericValue name.
-  /*!
-      This version is faster because it does not need a StrLen(). It can also
-     handle string with null character. \param name Member name to be searched.
-      \pre IsObject() == true
-      \return Whether a member with that name exists.
-      \note It is better to use FindMember() directly if you need the obtain the
-     value as well. \note Linear time complexity.
-  */
-  template <typename SourceAllocator>
-  bool HasMember(const GenericValue<Encoding, SourceAllocator>& name) const {
-    return FindMember(name) != MemberEnd();
-  }
-
-  //! Find member by name.
-  /*!
-      \param name Member name to be searched.
-      \pre IsObject() == true
-      \return Iterator to member, if it exists.
-          Otherwise returns \ref MemberEnd().
-
-      \note Earlier versions of Rapidjson returned a \c NULL pointer, in case
-          the requested member doesn't exist. For consistency with e.g.
-          \c std::map, this has been changed to MemberEnd() now.
-      \note Linear time complexity.
-  */
-  MemberIterator FindMember(const Ch* name) {
-    GenericValue n(StringRef(name));
-    return FindMember(n);
-  }
-
-  ConstMemberIterator FindMember(const Ch* name) const {
-    return const_cast<GenericValue&>(*this).FindMember(name);
-  }
-
-  //! Find member by name.
-  /*!
-      This version is faster because it does not need a StrLen(). It can also
-     handle string with null character. \param name Member name to be searched.
-      \pre IsObject() == true
-      \return Iterator to member, if it exists.
-          Otherwise returns \ref MemberEnd().
-
-      \note Earlier versions of Rapidjson returned a \c NULL pointer, in case
-          the requested member doesn't exist. For consistency with e.g.
-          \c std::map, this has been changed to MemberEnd() now.
-      \note Linear time complexity.
-  */
-  template <typename SourceAllocator>
-  MemberIterator FindMember(
-      const GenericValue<Encoding, SourceAllocator>& name) {
-    RAPIDJSON_ASSERT(IsObject());
-    RAPIDJSON_ASSERT(name.IsString());
-    MemberIterator member = MemberBegin();
-    for (; member != MemberEnd(); ++member)
-      if (name.StringEqual(member->name))
-        break;
-    return member;
-  }
-  template <typename SourceAllocator>
-  ConstMemberIterator FindMember(
-      const GenericValue<Encoding, SourceAllocator>& name) const {
-    return const_cast<GenericValue&>(*this).FindMember(name);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Find member by string object name.
-  /*!
-      \param name Member name to be searched.
-      \pre IsObject() == true
-      \return Iterator to member, if it exists.
-          Otherwise returns \ref MemberEnd().
-  */
-  MemberIterator FindMember(const std::basic_string<Ch>& name) {
-    return FindMember(GenericValue(StringRef(name)));
-  }
-  ConstMemberIterator FindMember(const std::basic_string<Ch>& name) const {
-    return FindMember(GenericValue(StringRef(name)));
-  }
-#endif
-
-  //! Add a member (name-value pair) to the object.
-  /*! \param name A string value as name of member.
-      \param value Value of any type.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \return
-     The value itself for fluent API. \note The ownership of \c name and \c
-     value will be transferred to this object on success. \pre  IsObject() &&
-     name.IsString() \post name.IsNull() && value.IsNull() \note Amortized
-     Constant time complexity.
-  */
-  GenericValue& AddMember(GenericValue& name,
-                          GenericValue& value,
-                          Allocator& allocator) {
-    RAPIDJSON_ASSERT(IsObject());
-    RAPIDJSON_ASSERT(name.IsString());
-
-    ObjectData& o = data_.o;
-    if (o.size >= o.capacity) {
-      if (o.capacity == 0) {
-        o.capacity = kDefaultObjectCapacity;
-        SetMembersPointer(reinterpret_cast<Member*>(
-            allocator.Malloc(o.capacity * sizeof(Member))));
-      } else {
-        SizeType oldCapacity = o.capacity;
-        o.capacity += (oldCapacity + 1) / 2;  // grow by factor 1.5
-        SetMembersPointer(reinterpret_cast<Member*>(
-            allocator.Realloc(GetMembersPointer(), oldCapacity * sizeof(Member),
-                              o.capacity * sizeof(Member))));
-      }
-    }
-    Member* members = GetMembersPointer();
-    members[o.size].name.RawAssign(name);
-    members[o.size].value.RawAssign(value);
-    o.size++;
-    return *this;
-  }
-
-  //! Add a constant string value as member (name-value pair) to the object.
-  /*! \param name A string value as name of member.
-      \param value constant string reference as value of member.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \return
-     The value itself for fluent API. \pre  IsObject() \note This overload is
-     needed to avoid clashes with the generic primitive type
-     AddMember(GenericValue&,T,Allocator&) overload below. \note Amortized
-     Constant time complexity.
-  */
-  GenericValue& AddMember(GenericValue& name,
-                          StringRefType value,
-                          Allocator& allocator) {
-    GenericValue v(value);
-    return AddMember(name, v, allocator);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Add a string object as member (name-value pair) to the object.
-  /*! \param name A string value as name of member.
-      \param value constant string reference as value of member.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \return
-     The value itself for fluent API. \pre  IsObject() \note This overload is
-     needed to avoid clashes with the generic primitive type
-     AddMember(GenericValue&,T,Allocator&) overload below. \note Amortized
-     Constant time complexity.
-  */
-  GenericValue& AddMember(GenericValue& name,
-                          std::basic_string<Ch>& value,
-                          Allocator& allocator) {
-    GenericValue v(value, allocator);
-    return AddMember(name, v, allocator);
-  }
-#endif
-
-  //! Add any primitive value as member (name-value pair) to the object.
-  /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
-      \param name A string value as name of member.
-      \param value Value of primitive type \c T as value of member
-      \param allocator Allocator for reallocating memory. Commonly use
-     GenericDocument::GetAllocator(). \return The value itself for fluent API.
-      \pre  IsObject()
-
-      \note The source type \c T explicitly disallows all pointer types,
-          especially (\c const) \ref Ch*.  This helps avoiding implicitly
-          referencing character strings with insufficient lifetime, use
-          \ref AddMember(StringRefType, GenericValue&, Allocator&) or \ref
-          AddMember(StringRefType, StringRefType, Allocator&).
-          All other pointer types would implicitly convert to \c bool,
-          use an explicit cast instead, if needed.
-      \note Amortized Constant time complexity.
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (GenericValue&))
-  AddMember(GenericValue& name, T value, Allocator& allocator) {
-    GenericValue v(value);
-    return AddMember(name, v, allocator);
-  }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericValue& AddMember(GenericValue&& name,
-                          GenericValue&& value,
-                          Allocator& allocator) {
-    return AddMember(name, value, allocator);
-  }
-  GenericValue& AddMember(GenericValue&& name,
-                          GenericValue& value,
-                          Allocator& allocator) {
-    return AddMember(name, value, allocator);
-  }
-  GenericValue& AddMember(GenericValue& name,
-                          GenericValue&& value,
-                          Allocator& allocator) {
-    return AddMember(name, value, allocator);
-  }
-  GenericValue& AddMember(StringRefType name,
-                          GenericValue&& value,
-                          Allocator& allocator) {
-    GenericValue n(name);
-    return AddMember(n, value, allocator);
-  }
-#endif  // RAPIDJSON_HAS_CXX11_RVALUE_REFS
-
-  //! Add a member (name-value pair) to the object.
-  /*! \param name A constant string reference as name of member.
-      \param value Value of any type.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \return
-     The value itself for fluent API. \note The ownership of \c value will be
-     transferred to this object on success. \pre  IsObject() \post
-     value.IsNull() \note Amortized Constant time complexity.
-  */
-  GenericValue& AddMember(StringRefType name,
-                          GenericValue& value,
-                          Allocator& allocator) {
-    GenericValue n(name);
-    return AddMember(n, value, allocator);
-  }
-
-  //! Add a constant string value as member (name-value pair) to the object.
-  /*! \param name A constant string reference as name of member.
-      \param value constant string reference as value of member.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \return
-     The value itself for fluent API. \pre  IsObject() \note This overload is
-     needed to avoid clashes with the generic primitive type
-     AddMember(StringRefType,T,Allocator&) overload below. \note Amortized
-     Constant time complexity.
-  */
-  GenericValue& AddMember(StringRefType name,
-                          StringRefType value,
-                          Allocator& allocator) {
-    GenericValue v(value);
-    return AddMember(name, v, allocator);
-  }
-
-  //! Add any primitive value as member (name-value pair) to the object.
-  /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
-      \param name A constant string reference as name of member.
-      \param value Value of primitive type \c T as value of member
-      \param allocator Allocator for reallocating memory. Commonly use
-     GenericDocument::GetAllocator(). \return The value itself for fluent API.
-      \pre  IsObject()
-
-      \note The source type \c T explicitly disallows all pointer types,
-          especially (\c const) \ref Ch*.  This helps avoiding implicitly
-          referencing character strings with insufficient lifetime, use
-          \ref AddMember(StringRefType, GenericValue&, Allocator&) or \ref
-          AddMember(StringRefType, StringRefType, Allocator&).
-          All other pointer types would implicitly convert to \c bool,
-          use an explicit cast instead, if needed.
-      \note Amortized Constant time complexity.
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (GenericValue&))
-  AddMember(StringRefType name, T value, Allocator& allocator) {
-    GenericValue n(name);
-    return AddMember(n, value, allocator);
-  }
-
-  //! Remove all members in the object.
-  /*! This function do not deallocate memory in the object, i.e. the capacity is
-     unchanged. \note Linear time complexity.
-  */
-  void RemoveAllMembers() {
-    RAPIDJSON_ASSERT(IsObject());
-    for (MemberIterator m = MemberBegin(); m != MemberEnd(); ++m)
-      m->~Member();
-    data_.o.size = 0;
-  }
-
-  //! Remove a member in object by its name.
-  /*! \param name Name of member to be removed.
-      \return Whether the member existed.
-      \note This function may reorder the object members. Use \ref
-          EraseMember(ConstMemberIterator) if you need to preserve the
-          relative order of the remaining members.
-      \note Linear time complexity.
-  */
-  bool RemoveMember(const Ch* name) {
-    GenericValue n(StringRef(name));
-    return RemoveMember(n);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  bool RemoveMember(const std::basic_string<Ch>& name) {
-    return RemoveMember(GenericValue(StringRef(name)));
-  }
-#endif
-
-  template <typename SourceAllocator>
-  bool RemoveMember(const GenericValue<Encoding, SourceAllocator>& name) {
-    MemberIterator m = FindMember(name);
-    if (m != MemberEnd()) {
-      RemoveMember(m);
-      return true;
-    } else
-      return false;
-  }
-
-  //! Remove a member in object by iterator.
-  /*! \param m member iterator (obtained by FindMember() or MemberBegin()).
-      \return the new iterator after removal.
-      \note This function may reorder the object members. Use \ref
-          EraseMember(ConstMemberIterator) if you need to preserve the
-          relative order of the remaining members.
-      \note Constant time complexity.
-  */
-  MemberIterator RemoveMember(MemberIterator m) {
-    RAPIDJSON_ASSERT(IsObject());
-    RAPIDJSON_ASSERT(data_.o.size > 0);
-    RAPIDJSON_ASSERT(GetMembersPointer() != 0);
-    RAPIDJSON_ASSERT(m >= MemberBegin() && m < MemberEnd());
-
-    MemberIterator last(GetMembersPointer() + (data_.o.size - 1));
-    if (data_.o.size > 1 && m != last)
-      *m = *last;  // Move the last one to this place
-    else
-      m->~Member();  // Only one left, just destroy
-    --data_.o.size;
-    return m;
-  }
-
-  //! Remove a member from an object by iterator.
-  /*! \param pos iterator to the member to remove
-      \pre IsObject() == true && \ref MemberBegin() <= \c pos < \ref MemberEnd()
-      \return Iterator following the removed element.
-          If the iterator \c pos refers to the last element, the \ref
-     MemberEnd() iterator is returned. \note This function preserves the
-     relative order of the remaining object members. If you do not need this,
-     use the more efficient \ref RemoveMember(MemberIterator). \note Linear time
-     complexity.
-  */
-  MemberIterator EraseMember(ConstMemberIterator pos) {
-    return EraseMember(pos, pos + 1);
-  }
-
-  //! Remove members in the range [first, last) from an object.
-  /*! \param first iterator to the first member to remove
-      \param last  iterator following the last member to remove
-      \pre IsObject() == true && \ref MemberBegin() <= \c first <= \c last <=
-     \ref MemberEnd() \return Iterator following the last removed element. \note
-     This function preserves the relative order of the remaining object members.
-      \note Linear time complexity.
-  */
-  MemberIterator EraseMember(ConstMemberIterator first,
-                             ConstMemberIterator last) {
-    RAPIDJSON_ASSERT(IsObject());
-    RAPIDJSON_ASSERT(data_.o.size > 0);
-    RAPIDJSON_ASSERT(GetMembersPointer() != 0);
-    RAPIDJSON_ASSERT(first >= MemberBegin());
-    RAPIDJSON_ASSERT(first <= last);
-    RAPIDJSON_ASSERT(last <= MemberEnd());
-
-    MemberIterator pos = MemberBegin() + (first - MemberBegin());
-    for (MemberIterator itr = pos; itr != last; ++itr)
-      itr->~Member();
-    std::memmove(&*pos, &*last,
-                 static_cast<size_t>(MemberEnd() - last) * sizeof(Member));
-    data_.o.size -= static_cast<SizeType>(last - first);
-    return pos;
-  }
-
-  //! Erase a member in object by its name.
-  /*! \param name Name of member to be removed.
-      \return Whether the member existed.
-      \note Linear time complexity.
-  */
-  bool EraseMember(const Ch* name) {
-    GenericValue n(StringRef(name));
-    return EraseMember(n);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  bool EraseMember(const std::basic_string<Ch>& name) {
-    return EraseMember(GenericValue(StringRef(name)));
-  }
-#endif
-
-  template <typename SourceAllocator>
-  bool EraseMember(const GenericValue<Encoding, SourceAllocator>& name) {
-    MemberIterator m = FindMember(name);
-    if (m != MemberEnd()) {
-      EraseMember(m);
-      return true;
-    } else
-      return false;
-  }
-
-  Object GetObject() {
-    RAPIDJSON_ASSERT(IsObject());
-    return Object(*this);
-  }
-  ConstObject GetObject() const {
-    RAPIDJSON_ASSERT(IsObject());
-    return ConstObject(*this);
-  }
-
-  //@}
-
-  //!@name Array
-  //@{
-
-  //! Set this value as an empty array.
-  /*! \post IsArray == true */
-  GenericValue& SetArray() {
-    this->~GenericValue();
-    new (this) GenericValue(kArrayType);
-    return *this;
-  }
-
-  //! Get the number of elements in array.
-  SizeType Size() const {
-    RAPIDJSON_ASSERT(IsArray());
-    return data_.a.size;
-  }
-
-  //! Get the capacity of array.
-  SizeType Capacity() const {
-    RAPIDJSON_ASSERT(IsArray());
-    return data_.a.capacity;
-  }
-
-  //! Check whether the array is empty.
-  bool Empty() const {
-    RAPIDJSON_ASSERT(IsArray());
-    return data_.a.size == 0;
-  }
-
-  //! Remove all elements in the array.
-  /*! This function do not deallocate memory in the array, i.e. the capacity is
-     unchanged. \note Linear time complexity.
-  */
-  void Clear() {
-    RAPIDJSON_ASSERT(IsArray());
-    GenericValue* e = GetElementsPointer();
-    for (GenericValue* v = e; v != e + data_.a.size; ++v)
-      v->~GenericValue();
-    data_.a.size = 0;
-  }
-
-  //! Get an element from array by index.
-  /*! \pre IsArray() == true
-      \param index Zero-based index of element.
-      \see operator[](T*)
-  */
-  GenericValue& operator[](SizeType index) {
-    RAPIDJSON_ASSERT(IsArray());
-    RAPIDJSON_ASSERT(index < data_.a.size);
-    return GetElementsPointer()[index];
-  }
-  const GenericValue& operator[](SizeType index) const {
-    return const_cast<GenericValue&>(*this)[index];
-  }
-
-  //! Element iterator
-  /*! \pre IsArray() == true */
-  ValueIterator Begin() {
-    RAPIDJSON_ASSERT(IsArray());
-    return GetElementsPointer();
-  }
-  //! \em Past-the-end element iterator
-  /*! \pre IsArray() == true */
-  ValueIterator End() {
-    RAPIDJSON_ASSERT(IsArray());
-    return GetElementsPointer() + data_.a.size;
-  }
-  //! Constant element iterator
-  /*! \pre IsArray() == true */
-  ConstValueIterator Begin() const {
-    return const_cast<GenericValue&>(*this).Begin();
-  }
-  //! Constant \em past-the-end element iterator
-  /*! \pre IsArray() == true */
-  ConstValueIterator End() const {
-    return const_cast<GenericValue&>(*this).End();
-  }
-
-  //! Request the array to have enough capacity to store elements.
-  /*! \param newCapacity  The capacity that the array at least need to have.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \return
-     The value itself for fluent API. \note Linear time complexity.
-  */
-  GenericValue& Reserve(SizeType newCapacity, Allocator& allocator) {
-    RAPIDJSON_ASSERT(IsArray());
-    if (newCapacity > data_.a.capacity) {
-      SetElementsPointer(reinterpret_cast<GenericValue*>(allocator.Realloc(
-          GetElementsPointer(), data_.a.capacity * sizeof(GenericValue),
-          newCapacity * sizeof(GenericValue))));
-      data_.a.capacity = newCapacity;
-    }
-    return *this;
-  }
-
-  //! Append a GenericValue at the end of the array.
-  /*! \param value        Value to be appended.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \pre
-     IsArray() == true \post value.IsNull() == true \return The value itself for
-     fluent API. \note The ownership of \c value will be transferred to this
-     array on success. \note If the number of elements to be appended is known,
-     calls Reserve() once first may be more efficient. \note Amortized constant
-     time complexity.
-  */
-  GenericValue& PushBack(GenericValue& value, Allocator& allocator) {
-    RAPIDJSON_ASSERT(IsArray());
-    if (data_.a.size >= data_.a.capacity)
-      Reserve(data_.a.capacity == 0
-                  ? kDefaultArrayCapacity
-                  : (data_.a.capacity + (data_.a.capacity + 1) / 2),
-              allocator);
-    GetElementsPointer()[data_.a.size++].RawAssign(value);
-    return *this;
-  }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericValue& PushBack(GenericValue&& value, Allocator& allocator) {
-    return PushBack(value, allocator);
-  }
-#endif  // RAPIDJSON_HAS_CXX11_RVALUE_REFS
-
-  //! Append a constant string reference at the end of the array.
-  /*! \param value        Constant string reference to be appended.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one used previously. Commonly use GenericDocument::GetAllocator(). \pre
-     IsArray() == true \return The value itself for fluent API. \note If the
-     number of elements to be appended is known, calls Reserve() once first may
-     be more efficient. \note Amortized constant time complexity. \see
-     GenericStringRef
-  */
-  GenericValue& PushBack(StringRefType value, Allocator& allocator) {
-    return (*this).template PushBack<StringRefType>(value, allocator);
-  }
-
-  //! Append a primitive value at the end of the array.
-  /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
-      \param value Value of primitive type T to be appended.
-      \param allocator    Allocator for reallocating memory. It must be the same
-     one as used before. Commonly use GenericDocument::GetAllocator(). \pre
-     IsArray() == true \return The value itself for fluent API. \note If the
-     number of elements to be appended is known, calls Reserve() once first may
-     be more efficient.
-
-      \note The source type \c T explicitly disallows all pointer types,
-          especially (\c const) \ref Ch*.  This helps avoiding implicitly
-          referencing character strings with insufficient lifetime, use
-          \ref PushBack(GenericValue&, Allocator&) or \ref
-          PushBack(StringRefType, Allocator&).
-          All other pointer types would implicitly convert to \c bool,
-          use an explicit cast instead, if needed.
-      \note Amortized constant time complexity.
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (GenericValue&))
-  PushBack(T value, Allocator& allocator) {
-    GenericValue v(value);
-    return PushBack(v, allocator);
-  }
-
-  //! Remove the last element in the array.
-  /*!
-      \note Constant time complexity.
-  */
-  GenericValue& PopBack() {
-    RAPIDJSON_ASSERT(IsArray());
-    RAPIDJSON_ASSERT(!Empty());
-    GetElementsPointer()[--data_.a.size].~GenericValue();
-    return *this;
-  }
-
-  //! Remove an element of array by iterator.
-  /*!
-      \param pos iterator to the element to remove
-      \pre IsArray() == true && \ref Begin() <= \c pos < \ref End()
-      \return Iterator following the removed element. If the iterator pos refers
-     to the last element, the End() iterator is returned. \note Linear time
-     complexity.
-  */
-  ValueIterator Erase(ConstValueIterator pos) { return Erase(pos, pos + 1); }
-
-  //! Remove elements in the range [first, last) of the array.
-  /*!
-      \param first iterator to the first element to remove
-      \param last  iterator following the last element to remove
-      \pre IsArray() == true && \ref Begin() <= \c first <= \c last <= \ref
-     End() \return Iterator following the last removed element. \note Linear
-     time complexity.
-  */
-  ValueIterator Erase(ConstValueIterator first, ConstValueIterator last) {
-    RAPIDJSON_ASSERT(IsArray());
-    RAPIDJSON_ASSERT(data_.a.size > 0);
-    RAPIDJSON_ASSERT(GetElementsPointer() != 0);
-    RAPIDJSON_ASSERT(first >= Begin());
-    RAPIDJSON_ASSERT(first <= last);
-    RAPIDJSON_ASSERT(last <= End());
-    ValueIterator pos = Begin() + (first - Begin());
-    for (ValueIterator itr = pos; itr != last; ++itr)
-      itr->~GenericValue();
-    std::memmove(pos, last,
-                 static_cast<size_t>(End() - last) * sizeof(GenericValue));
-    data_.a.size -= static_cast<SizeType>(last - first);
-    return pos;
-  }
-
-  Array GetArray() {
-    RAPIDJSON_ASSERT(IsArray());
-    return Array(*this);
-  }
-  ConstArray GetArray() const {
-    RAPIDJSON_ASSERT(IsArray());
-    return ConstArray(*this);
-  }
-
-  //@}
-
-  //!@name Number
-  //@{
-
-  int GetInt() const {
-    RAPIDJSON_ASSERT(data_.f.flags & kIntFlag);
-    return data_.n.i.i;
-  }
-  unsigned GetUint() const {
-    RAPIDJSON_ASSERT(data_.f.flags & kUintFlag);
-    return data_.n.u.u;
-  }
-  int64_t GetInt64() const {
-    RAPIDJSON_ASSERT(data_.f.flags & kInt64Flag);
-    return data_.n.i64;
-  }
-  uint64_t GetUint64() const {
-    RAPIDJSON_ASSERT(data_.f.flags & kUint64Flag);
-    return data_.n.u64;
-  }
-
-  //! Get the value as double type.
-  /*! \note If the value is 64-bit integer type, it may lose precision. Use \c
-   * IsLosslessDouble() to check whether the converison is lossless.
-   */
-  double GetDouble() const {
-    RAPIDJSON_ASSERT(IsNumber());
-    if ((data_.f.flags & kDoubleFlag) != 0)
-      return data_.n.d;  // exact type, no conversion.
-    if ((data_.f.flags & kIntFlag) != 0)
-      return data_.n.i.i;  // int -> double
-    if ((data_.f.flags & kUintFlag) != 0)
-      return data_.n.u.u;  // unsigned -> double
-    if ((data_.f.flags & kInt64Flag) != 0)
-      return static_cast<double>(
-          data_.n.i64);  // int64_t -> double (may lose precision)
-    RAPIDJSON_ASSERT((data_.f.flags & kUint64Flag) != 0);
-    return static_cast<double>(
-        data_.n.u64);  // uint64_t -> double (may lose precision)
-  }
-
-  //! Get the value as float type.
-  /*! \note If the value is 64-bit integer type, it may lose precision. Use \c
-   * IsLosslessFloat() to check whether the converison is lossless.
-   */
-  float GetFloat() const { return static_cast<float>(GetDouble()); }
-
-  GenericValue& SetInt(int i) {
-    this->~GenericValue();
-    new (this) GenericValue(i);
-    return *this;
-  }
-  GenericValue& SetUint(unsigned u) {
-    this->~GenericValue();
-    new (this) GenericValue(u);
-    return *this;
-  }
-  GenericValue& SetInt64(int64_t i64) {
-    this->~GenericValue();
-    new (this) GenericValue(i64);
-    return *this;
-  }
-  GenericValue& SetUint64(uint64_t u64) {
-    this->~GenericValue();
-    new (this) GenericValue(u64);
-    return *this;
-  }
-  GenericValue& SetDouble(double d) {
-    this->~GenericValue();
-    new (this) GenericValue(d);
-    return *this;
-  }
-  GenericValue& SetFloat(float f) {
-    this->~GenericValue();
-    new (this) GenericValue(f);
-    return *this;
-  }
-
-  //@}
-
-  //!@name String
-  //@{
-
-  const Ch* GetString() const {
-    RAPIDJSON_ASSERT(IsString());
-    return (data_.f.flags & kInlineStrFlag) ? data_.ss.str : GetStringPointer();
-  }
-
-  //! Get the length of string.
-  /*! Since rapidjson permits "\\u0000" in the json string,
-   * strlen(v.GetString()) may not equal to v.GetStringLength().
-   */
-  SizeType GetStringLength() const {
-    RAPIDJSON_ASSERT(IsString());
-    return ((data_.f.flags & kInlineStrFlag) ? (data_.ss.GetLength())
-                                             : data_.s.length);
-  }
-
-  //! Set this value as a string without copying source string.
-  /*! This version has better performance with supplied length, and also support
-     string containing null character. \param s source string pointer. \param
-     length The length of source string, excluding the trailing null terminator.
-      \return The value itself for fluent API.
-      \post IsString() == true && GetString() == s && GetStringLength() ==
-     length \see SetString(StringRefType)
-  */
-  GenericValue& SetString(const Ch* s, SizeType length) {
-    return SetString(StringRef(s, length));
-  }
-
-  //! Set this value as a string without copying source string.
-  /*! \param s source string reference
-      \return The value itself for fluent API.
-      \post IsString() == true && GetString() == s && GetStringLength() ==
-     s.length
-  */
-  GenericValue& SetString(StringRefType s) {
-    this->~GenericValue();
-    SetStringRaw(s);
-    return *this;
-  }
-
-  //! Set this value as a string by copying from source string.
-  /*! This version has better performance with supplied length, and also support
-     string containing null character. \param s source string. \param length The
-     length of source string, excluding the trailing null terminator. \param
-     allocator Allocator for allocating copied buffer. Commonly use
-     GenericDocument::GetAllocator(). \return The value itself for fluent API.
-      \post IsString() == true && GetString() != s && strcmp(GetString(),s) == 0
-     && GetStringLength() == length
-  */
-  GenericValue& SetString(const Ch* s, SizeType length, Allocator& allocator) {
-    this->~GenericValue();
-    SetStringRaw(StringRef(s, length), allocator);
-    return *this;
-  }
-
-  //! Set this value as a string by copying from source string.
-  /*! \param s source string.
-      \param allocator Allocator for allocating copied buffer. Commonly use
-     GenericDocument::GetAllocator(). \return The value itself for fluent API.
-      \post IsString() == true && GetString() != s && strcmp(GetString(),s) == 0
-     && GetStringLength() == length
-  */
-  GenericValue& SetString(const Ch* s, Allocator& allocator) {
-    return SetString(s, internal::StrLen(s), allocator);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Set this value as a string by copying from source string.
-  /*! \param s source string.
-      \param allocator Allocator for allocating copied buffer. Commonly use
-     GenericDocument::GetAllocator(). \return The value itself for fluent API.
-      \post IsString() == true && GetString() != s.data() &&
-     strcmp(GetString(),s.data() == 0 && GetStringLength() == s.size() \note
-     Requires the definition of the preprocessor symbol \ref
-     RAPIDJSON_HAS_STDSTRING.
-  */
-  GenericValue& SetString(const std::basic_string<Ch>& s,
-                          Allocator& allocator) {
-    return SetString(s.data(), SizeType(s.size()), allocator);
-  }
-#endif
-
-  //@}
-
-  //!@name Array
-  //@{
-
-  //! Templated version for checking whether this value is type T.
-  /*!
-      \tparam T Either \c bool, \c int, \c unsigned, \c int64_t, \c uint64_t, \c
-     double, \c float, \c const \c char*, \c std::basic_string<Ch>
-  */
-  template <typename T>
-  bool Is() const {
-    return internal::TypeHelper<ValueType, T>::Is(*this);
-  }
-
-  template <typename T>
-  T Get() const {
-    return internal::TypeHelper<ValueType, T>::Get(*this);
-  }
-
-  template <typename T>
-  T Get() {
-    return internal::TypeHelper<ValueType, T>::Get(*this);
-  }
-
-  template <typename T>
-  ValueType& Set(const T& data) {
-    return internal::TypeHelper<ValueType, T>::Set(*this, data);
-  }
-
-  template <typename T>
-  ValueType& Set(const T& data, AllocatorType& allocator) {
-    return internal::TypeHelper<ValueType, T>::Set(*this, data, allocator);
-  }
-
-  //@}
-
-  //! Generate events of this value to a Handler.
-  /*! This function adopts the GoF visitor pattern.
-      Typical usage is to output this JSON value as JSON text via Writer, which
-     is a Handler. It can also be used to deep clone this value via
-     GenericDocument, which is also a Handler. \tparam Handler type of handler.
-      \param handler An object implementing concept Handler.
-  */
-  template <typename Handler>
-  bool Accept(Handler& handler) const {
-    switch (GetType()) {
-      case kNullType:
-        return handler.Null();
-      case kFalseType:
-        return handler.Bool(false);
-      case kTrueType:
-        return handler.Bool(true);
-
-      case kObjectType:
-        if (RAPIDJSON_UNLIKELY(!handler.StartObject()))
-          return false;
-        for (ConstMemberIterator m = MemberBegin(); m != MemberEnd(); ++m) {
-          RAPIDJSON_ASSERT(m->name.IsString());  // User may change the type of
-                                                 // name by MemberIterator.
-          if (RAPIDJSON_UNLIKELY(
-                  !handler.Key(m->name.GetString(), m->name.GetStringLength(),
-                               (m->name.data_.f.flags & kCopyFlag) != 0)))
-            return false;
-          if (RAPIDJSON_UNLIKELY(!m->value.Accept(handler)))
-            return false;
-        }
-        return handler.EndObject(data_.o.size);
-
-      case kArrayType:
-        if (RAPIDJSON_UNLIKELY(!handler.StartArray()))
-          return false;
-        for (const GenericValue* v = Begin(); v != End(); ++v)
-          if (RAPIDJSON_UNLIKELY(!v->Accept(handler)))
-            return false;
-        return handler.EndArray(data_.a.size);
-
-      case kStringType:
-        return handler.String(GetString(), GetStringLength(),
-                              (data_.f.flags & kCopyFlag) != 0);
-
-      default:
-        RAPIDJSON_ASSERT(GetType() == kNumberType);
-        if (IsDouble())
-          return handler.Double(data_.n.d);
-        else if (IsInt())
-          return handler.Int(data_.n.i.i);
-        else if (IsUint())
-          return handler.Uint(data_.n.u.u);
-        else if (IsInt64())
-          return handler.Int64(data_.n.i64);
-        else
-          return handler.Uint64(data_.n.u64);
-    }
-  }
-
- private:
-  template <typename, typename>
-  friend class GenericValue;
-  template <typename, typename, typename>
-  friend class GenericDocument;
-
-  enum {
-    kBoolFlag = 0x0008,
-    kNumberFlag = 0x0010,
-    kIntFlag = 0x0020,
-    kUintFlag = 0x0040,
-    kInt64Flag = 0x0080,
-    kUint64Flag = 0x0100,
-    kDoubleFlag = 0x0200,
-    kStringFlag = 0x0400,
-    kCopyFlag = 0x0800,
-    kInlineStrFlag = 0x1000,
-
-    // Initial flags of different types.
-    kNullFlag = kNullType,
-    kTrueFlag = kTrueType | kBoolFlag,
-    kFalseFlag = kFalseType | kBoolFlag,
-    kNumberIntFlag = kNumberType | kNumberFlag | kIntFlag | kInt64Flag,
-    kNumberUintFlag =
-        kNumberType | kNumberFlag | kUintFlag | kUint64Flag | kInt64Flag,
-    kNumberInt64Flag = kNumberType | kNumberFlag | kInt64Flag,
-    kNumberUint64Flag = kNumberType | kNumberFlag | kUint64Flag,
-    kNumberDoubleFlag = kNumberType | kNumberFlag | kDoubleFlag,
-    kNumberAnyFlag = kNumberType | kNumberFlag | kIntFlag | kInt64Flag |
-                     kUintFlag | kUint64Flag | kDoubleFlag,
-    kConstStringFlag = kStringType | kStringFlag,
-    kCopyStringFlag = kStringType | kStringFlag | kCopyFlag,
-    kShortStringFlag = kStringType | kStringFlag | kCopyFlag | kInlineStrFlag,
-    kObjectFlag = kObjectType,
-    kArrayFlag = kArrayType,
-
-    kTypeMask = 0x07
-  };
-
-  static const SizeType kDefaultArrayCapacity = 16;
-  static const SizeType kDefaultObjectCapacity = 16;
-
-  struct Flag {
-#if RAPIDJSON_48BITPOINTER_OPTIMIZATION
-    char payload[sizeof(SizeType) * 2 +
-                 6];  // 2 x SizeType + lower 48-bit pointer
-#elif RAPIDJSON_64BIT
-    char payload[sizeof(SizeType) * 2 + sizeof(void*) + 6];  // 6 padding bytes
-#else
-          char payload[sizeof(SizeType) * 2 + sizeof(void*) +
-                       2];  // 2 padding bytes
-#endif
-    uint16_t flags;
-  };
-
-  struct String {
-    SizeType length;
-    SizeType hashcode;  //!< reserved
-    const Ch* str;
-  };  // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
-
-  // implementation detail: ShortString can represent zero-terminated strings up
-  // to MaxSize chars (excluding the terminating zero) and store a value to
-  // determine the length of the contained string in the last character
-  // str[LenPos] by storing "MaxSize - length" there. If the string to store has
-  // the maximal length of MaxSize then str[LenPos] will be 0 and therefore act
-  // as the string terminator as well. For getting the string length back from
-  // that value just use "MaxSize - str[LenPos]". This allows to store 13-chars
-  // strings in 32-bit mode, 21-chars strings in 64-bit mode, 13-chars strings
-  // for RAPIDJSON_48BITPOINTER_OPTIMIZATION=1 inline (for `UTF8`-encoded
-  // strings).
-  struct ShortString {
-    enum {
-      MaxChars = sizeof(static_cast<Flag*>(0)->payload) / sizeof(Ch),
-      MaxSize = MaxChars - 1,
-      LenPos = MaxSize
-    };
-    Ch str[MaxChars];
-
-    inline static bool Usable(SizeType len) { return (MaxSize >= len); }
-    inline void SetLength(SizeType len) {
-      str[LenPos] = static_cast<Ch>(MaxSize - len);
-    }
-    inline SizeType GetLength() const {
-      return static_cast<SizeType>(MaxSize - str[LenPos]);
-    }
-  };  // at most as many bytes as "String" above => 12 bytes in 32-bit mode, 16
-      // bytes in 64-bit mode
-
-  // By using proper binary layout, retrieval of different integer types do not
-  // need conversions.
-  union Number {
-#if RAPIDJSON_ENDIAN == RAPIDJSON_LITTLEENDIAN
-    struct I {
-      int i;
-      char padding[4];
-    } i;
-    struct U {
-      unsigned u;
-      char padding2[4];
-    } u;
-#else
-    struct I {
-      char padding[4];
-      int i;
-    } i;
-    struct U {
-      char padding2[4];
-      unsigned u;
-    } u;
-#endif
-    int64_t i64;
-    uint64_t u64;
-    double d;
-  };  // 8 bytes
-
-  struct ObjectData {
-    SizeType size;
-    SizeType capacity;
-    Member* members;
-  };  // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
-
-  struct ArrayData {
-    SizeType size;
-    SizeType capacity;
-    GenericValue* elements;
-  };  // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
-
-  union Data {
-    String s;
-    ShortString ss;
-    Number n;
-    ObjectData o;
-    ArrayData a;
-    Flag f;
-  };  // 16 bytes in 32-bit mode, 24 bytes in 64-bit mode, 16 bytes in 64-bit
-      // with RAPIDJSON_48BITPOINTER_OPTIMIZATION
-
-  RAPIDJSON_FORCEINLINE const Ch* GetStringPointer() const {
-    return RAPIDJSON_GETPOINTER(Ch, data_.s.str);
-  }
-  RAPIDJSON_FORCEINLINE const Ch* SetStringPointer(const Ch* str) {
-    return RAPIDJSON_SETPOINTER(Ch, data_.s.str, str);
-  }
-  RAPIDJSON_FORCEINLINE GenericValue* GetElementsPointer() const {
-    return RAPIDJSON_GETPOINTER(GenericValue, data_.a.elements);
-  }
-  RAPIDJSON_FORCEINLINE GenericValue* SetElementsPointer(
-      GenericValue* elements) {
-    return RAPIDJSON_SETPOINTER(GenericValue, data_.a.elements, elements);
-  }
-  RAPIDJSON_FORCEINLINE Member* GetMembersPointer() const {
-    return RAPIDJSON_GETPOINTER(Member, data_.o.members);
-  }
-  RAPIDJSON_FORCEINLINE Member* SetMembersPointer(Member* members) {
-    return RAPIDJSON_SETPOINTER(Member, data_.o.members, members);
-  }
-
-  // Initialize this value as array with initial data, without calling
-  // destructor.
-  void SetArrayRaw(GenericValue* values, SizeType count, Allocator& allocator) {
-    data_.f.flags = kArrayFlag;
-    if (count) {
-      GenericValue* e = static_cast<GenericValue*>(
-          allocator.Malloc(count * sizeof(GenericValue)));
-      SetElementsPointer(e);
-      std::memcpy(e, values, count * sizeof(GenericValue));
-    } else
-      SetElementsPointer(0);
-    data_.a.size = data_.a.capacity = count;
-  }
-
-  //! Initialize this value as object with initial data, without calling
-  //! destructor.
-  void SetObjectRaw(Member* members, SizeType count, Allocator& allocator) {
-    data_.f.flags = kObjectFlag;
-    if (count) {
-      Member* m =
-          static_cast<Member*>(allocator.Malloc(count * sizeof(Member)));
-      SetMembersPointer(m);
-      std::memcpy(m, members, count * sizeof(Member));
-    } else
-      SetMembersPointer(0);
-    data_.o.size = data_.o.capacity = count;
-  }
-
-  //! Initialize this value as constant string, without calling destructor.
-  void SetStringRaw(StringRefType s) RAPIDJSON_NOEXCEPT {
-    data_.f.flags = kConstStringFlag;
-    SetStringPointer(s);
-    data_.s.length = s.length;
-  }
-
-  //! Initialize this value as copy string with initial data, without calling
-  //! destructor.
-  void SetStringRaw(StringRefType s, Allocator& allocator) {
-    Ch* str = 0;
-    if (ShortString::Usable(s.length)) {
-      data_.f.flags = kShortStringFlag;
-      data_.ss.SetLength(s.length);
-      str = data_.ss.str;
-    } else {
-      data_.f.flags = kCopyStringFlag;
-      data_.s.length = s.length;
-      str = static_cast<Ch*>(allocator.Malloc((s.length + 1) * sizeof(Ch)));
-      SetStringPointer(str);
-    }
-    std::memcpy(str, s, s.length * sizeof(Ch));
-    str[s.length] = '\0';
-  }
-
-  //! Assignment without calling destructor
-  void RawAssign(GenericValue& rhs) RAPIDJSON_NOEXCEPT {
-    data_ = rhs.data_;
-    // data_.f.flags = rhs.data_.f.flags;
-    rhs.data_.f.flags = kNullFlag;
-  }
-
-  template <typename SourceAllocator>
-  bool StringEqual(const GenericValue<Encoding, SourceAllocator>& rhs) const {
-    RAPIDJSON_ASSERT(IsString());
-    RAPIDJSON_ASSERT(rhs.IsString());
-
-    const SizeType len1 = GetStringLength();
-    const SizeType len2 = rhs.GetStringLength();
-    if (len1 != len2) {
-      return false;
-    }
-
-    const Ch* const str1 = GetString();
-    const Ch* const str2 = rhs.GetString();
-    if (str1 == str2) {
-      return true;
-    }  // fast path for constant string
-
-    return (std::memcmp(str1, str2, sizeof(Ch) * len1) == 0);
-  }
-
-  Data data_;
-};
-
-//! GenericValue with UTF8 encoding
-typedef GenericValue<UTF8<> > Value;
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericDocument
-
-//! A document for parsing JSON text as DOM.
-/*!
-    \note implements Handler concept
-    \tparam Encoding Encoding for both parsing and string storage.
-    \tparam Allocator Allocator for allocating memory for the DOM
-    \tparam StackAllocator Allocator for allocating memory for stack during
-   parsing. \warning Although GenericDocument inherits from GenericValue, the
-   API does \b not provide any virtual functions, especially no virtual
-   destructor.  To avoid memory leaks, do not \c delete a GenericDocument object
-   via a pointer to a GenericValue.
-*/
-template <typename Encoding,
-          typename Allocator = MemoryPoolAllocator<>,
-          typename StackAllocator = CrtAllocator>
-class GenericDocument : public GenericValue<Encoding, Allocator> {
- public:
-  typedef typename Encoding::Ch Ch;  //!< Character type derived from Encoding.
-  typedef GenericValue<Encoding, Allocator>
-      ValueType;                    //!< Value type of the document.
-  typedef Allocator AllocatorType;  //!< Allocator type from template parameter.
-
-  //! Constructor
-  /*! Creates an empty document of specified type.
-      \param type             Mandatory type of object to create.
-      \param allocator        Optional allocator for allocating memory.
-      \param stackCapacity    Optional initial capacity of stack in bytes.
-      \param stackAllocator   Optional allocator for allocating memory for
-     stack.
-  */
-  explicit GenericDocument(Type type,
-                           Allocator* allocator = 0,
-                           size_t stackCapacity = kDefaultStackCapacity,
-                           StackAllocator* stackAllocator = 0)
-      : GenericValue<Encoding, Allocator>(type),
-        allocator_(allocator),
-        ownAllocator_(0),
-        stack_(stackAllocator, stackCapacity),
-        parseResult_() {
-    if (!allocator_)
-      ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
-  }
-
-  //! Constructor
-  /*! Creates an empty document which type is Null.
-      \param allocator        Optional allocator for allocating memory.
-      \param stackCapacity    Optional initial capacity of stack in bytes.
-      \param stackAllocator   Optional allocator for allocating memory for
-     stack.
-  */
-  GenericDocument(Allocator* allocator = 0,
-                  size_t stackCapacity = kDefaultStackCapacity,
-                  StackAllocator* stackAllocator = 0)
-      : allocator_(allocator),
-        ownAllocator_(0),
-        stack_(stackAllocator, stackCapacity),
-        parseResult_() {
-    if (!allocator_)
-      ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
-  }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  //! Move constructor in C++11
-  GenericDocument(GenericDocument&& rhs) RAPIDJSON_NOEXCEPT
-      : ValueType(std::forward<ValueType>(
-            rhs)),  // explicit cast to avoid prohibited move from Document
-        allocator_(rhs.allocator_),
-        ownAllocator_(rhs.ownAllocator_),
-        stack_(std::move(rhs.stack_)),
-        parseResult_(rhs.parseResult_) {
-    rhs.allocator_ = 0;
-    rhs.ownAllocator_ = 0;
-    rhs.parseResult_ = ParseResult();
-  }
-#endif
-
-  ~GenericDocument() { Destroy(); }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  //! Move assignment in C++11
-  GenericDocument& operator=(GenericDocument&& rhs) RAPIDJSON_NOEXCEPT {
-    // The cast to ValueType is necessary here, because otherwise it would
-    // attempt to call GenericValue's templated assignment operator.
-    ValueType::operator=(std::forward<ValueType>(rhs));
-
-    // Calling the destructor here would prematurely call stack_'s destructor
-    Destroy();
-
-    allocator_ = rhs.allocator_;
-    ownAllocator_ = rhs.ownAllocator_;
-    stack_ = std::move(rhs.stack_);
-    parseResult_ = rhs.parseResult_;
-
-    rhs.allocator_ = 0;
-    rhs.ownAllocator_ = 0;
-    rhs.parseResult_ = ParseResult();
-
-    return *this;
-  }
-#endif
-
-  //! Exchange the contents of this document with those of another.
-  /*!
-      \param rhs Another document.
-      \note Constant complexity.
-      \see GenericValue::Swap
-  */
-  GenericDocument& Swap(GenericDocument& rhs) RAPIDJSON_NOEXCEPT {
-    ValueType::Swap(rhs);
-    stack_.Swap(rhs.stack_);
-    internal::Swap(allocator_, rhs.allocator_);
-    internal::Swap(ownAllocator_, rhs.ownAllocator_);
-    internal::Swap(parseResult_, rhs.parseResult_);
-    return *this;
-  }
-
-  //! free-standing swap function helper
-  /*!
-      Helper function to enable support for common swap implementation pattern
-     based on \c std::swap: \code void swap(MyClass& a, MyClass& b) { using
-     std::swap; swap(a.doc, b.doc);
-          // ...
-      }
-      \endcode
-      \see Swap()
-   */
-  friend inline void swap(GenericDocument& a,
-                          GenericDocument& b) RAPIDJSON_NOEXCEPT {
-    a.Swap(b);
-  }
-
-  //! Populate this document by a generator which produces SAX events.
-  /*! \tparam Generator A functor with <tt>bool f(Handler)</tt> prototype.
-      \param g Generator functor which sends SAX events to the parameter.
-      \return The document itself for fluent API.
-  */
-  template <typename Generator>
-  GenericDocument& Populate(Generator& g) {
-    ClearStackOnExit scope(*this);
-    if (g(*this)) {
-      RAPIDJSON_ASSERT(stack_.GetSize() ==
-                       sizeof(ValueType));  // Got one and only one root object
-      ValueType::operator=(*stack_.template Pop<ValueType>(
-          1));  // Move value from stack to document
-    }
-    return *this;
-  }
-
-  //!@name Parse from stream
-  //!@{
-
-  //! Parse JSON text from an input stream (with Encoding conversion)
-  /*! \tparam parseFlags Combination of \ref ParseFlag.
-      \tparam SourceEncoding Encoding of input stream
-      \tparam InputStream Type of input stream, implementing Stream concept
-      \param is Input stream to be parsed.
-      \return The document itself for fluent API.
-  */
-  template <unsigned parseFlags, typename SourceEncoding, typename InputStream>
-  GenericDocument& ParseStream(InputStream& is) {
-    GenericReader<SourceEncoding, Encoding, StackAllocator> reader(
-        stack_.HasAllocator() ? &stack_.GetAllocator() : 0);
-    ClearStackOnExit scope(*this);
-    parseResult_ = reader.template Parse<parseFlags>(is, *this);
-    if (parseResult_) {
-      RAPIDJSON_ASSERT(stack_.GetSize() ==
-                       sizeof(ValueType));  // Got one and only one root object
-      ValueType::operator=(*stack_.template Pop<ValueType>(
-          1));  // Move value from stack to document
-    }
-    return *this;
-  }
-
-  //! Parse JSON text from an input stream
-  /*! \tparam parseFlags Combination of \ref ParseFlag.
-      \tparam InputStream Type of input stream, implementing Stream concept
-      \param is Input stream to be parsed.
-      \return The document itself for fluent API.
-  */
-  template <unsigned parseFlags, typename InputStream>
-  GenericDocument& ParseStream(InputStream& is) {
-    return ParseStream<parseFlags, Encoding, InputStream>(is);
-  }
-
-  //! Parse JSON text from an input stream (with \ref kParseDefaultFlags)
-  /*! \tparam InputStream Type of input stream, implementing Stream concept
-      \param is Input stream to be parsed.
-      \return The document itself for fluent API.
-  */
-  template <typename InputStream>
-  GenericDocument& ParseStream(InputStream& is) {
-    return ParseStream<kParseDefaultFlags, Encoding, InputStream>(is);
-  }
-  //!@}
-
-  //!@name Parse in-place from mutable string
-  //!@{
-
-  //! Parse JSON text from a mutable string
-  /*! \tparam parseFlags Combination of \ref ParseFlag.
-      \param str Mutable zero-terminated string to be parsed.
-      \return The document itself for fluent API.
-  */
-  template <unsigned parseFlags>
-  GenericDocument& ParseInsitu(Ch* str) {
-    GenericInsituStringStream<Encoding> s(str);
-    return ParseStream<parseFlags | kParseInsituFlag>(s);
-  }
-
-  //! Parse JSON text from a mutable string (with \ref kParseDefaultFlags)
-  /*! \param str Mutable zero-terminated string to be parsed.
-      \return The document itself for fluent API.
-  */
-  GenericDocument& ParseInsitu(Ch* str) {
-    return ParseInsitu<kParseDefaultFlags>(str);
-  }
-  //!@}
-
-  //!@name Parse from read-only string
-  //!@{
-
-  //! Parse JSON text from a read-only string (with Encoding conversion)
-  /*! \tparam parseFlags Combination of \ref ParseFlag (must not contain \ref
-     kParseInsituFlag). \tparam SourceEncoding Transcoding from input Encoding
-      \param str Read-only zero-terminated string to be parsed.
-  */
-  template <unsigned parseFlags, typename SourceEncoding>
-  GenericDocument& Parse(const typename SourceEncoding::Ch* str) {
-    RAPIDJSON_ASSERT(!(parseFlags & kParseInsituFlag));
-    GenericStringStream<SourceEncoding> s(str);
-    return ParseStream<parseFlags, SourceEncoding>(s);
-  }
-
-  //! Parse JSON text from a read-only string
-  /*! \tparam parseFlags Combination of \ref ParseFlag (must not contain \ref
-     kParseInsituFlag). \param str Read-only zero-terminated string to be
-     parsed.
-  */
-  template <unsigned parseFlags>
-  GenericDocument& Parse(const Ch* str) {
-    return Parse<parseFlags, Encoding>(str);
-  }
-
-  //! Parse JSON text from a read-only string (with \ref kParseDefaultFlags)
-  /*! \param str Read-only zero-terminated string to be parsed.
-   */
-  GenericDocument& Parse(const Ch* str) {
-    return Parse<kParseDefaultFlags>(str);
-  }
-
-  template <unsigned parseFlags, typename SourceEncoding>
-  GenericDocument& Parse(const typename SourceEncoding::Ch* str,
-                         size_t length) {
-    RAPIDJSON_ASSERT(!(parseFlags & kParseInsituFlag));
-    MemoryStream ms(static_cast<const char*>(str),
-                    length * sizeof(typename SourceEncoding::Ch));
-    EncodedInputStream<SourceEncoding, MemoryStream> is(ms);
-    ParseStream<parseFlags, SourceEncoding>(is);
-    return *this;
-  }
-
-  template <unsigned parseFlags>
-  GenericDocument& Parse(const Ch* str, size_t length) {
-    return Parse<parseFlags, Encoding>(str, length);
-  }
-
-  GenericDocument& Parse(const Ch* str, size_t length) {
-    return Parse<kParseDefaultFlags>(str, length);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  template <unsigned parseFlags, typename SourceEncoding>
-  GenericDocument& Parse(
-      const std::basic_string<typename SourceEncoding::Ch>& str) {
-    // c_str() is constant complexity according to standard. Should be faster
-    // than Parse(const char*, size_t)
-    return Parse<parseFlags, SourceEncoding>(str.c_str());
-  }
-
-  template <unsigned parseFlags>
-  GenericDocument& Parse(const std::basic_string<Ch>& str) {
-    return Parse<parseFlags, Encoding>(str.c_str());
-  }
-
-  GenericDocument& Parse(const std::basic_string<Ch>& str) {
-    return Parse<kParseDefaultFlags>(str);
-  }
-#endif  // RAPIDJSON_HAS_STDSTRING
-
-  //!@}
-
-  //!@name Handling parse errors
-  //!@{
-
-  //! Whether a parse error has occured in the last parsing.
-  bool HasParseError() const { return parseResult_.IsError(); }
-
-  //! Get the \ref ParseErrorCode of last parsing.
-  ParseErrorCode GetParseError() const { return parseResult_.Code(); }
-
-  //! Get the position of last parsing error in input, 0 otherwise.
-  size_t GetErrorOffset() const { return parseResult_.Offset(); }
-
-  //! Implicit conversion to get the last parse result
-#ifndef __clang  // -Wdocumentation
-                 /*! \return \ref ParseResult of the last parse operation
-
-                     \code
-                       Document doc;
-                       ParseResult ok = doc.Parse(json);
-                       if (!ok)
-                         printf( "JSON parse error: %s (%u)\n", GetParseError_En(ok.Code()),
-                    ok.Offset());                \endcode
-                  */
-#endif
-  operator ParseResult() const { return parseResult_; }
-  //!@}
-
-  //! Get the allocator of this document.
-  Allocator& GetAllocator() {
-    RAPIDJSON_ASSERT(allocator_);
-    return *allocator_;
-  }
-
-  //! Get the capacity of stack in bytes.
-  size_t GetStackCapacity() const { return stack_.GetCapacity(); }
-
- private:
-  // clear stack on any exit from ParseStream, e.g. due to exception
-  struct ClearStackOnExit {
-    explicit ClearStackOnExit(GenericDocument& d) : d_(d) {}
-    ~ClearStackOnExit() { d_.ClearStack(); }
-
-   private:
-    ClearStackOnExit(const ClearStackOnExit&);
-    ClearStackOnExit& operator=(const ClearStackOnExit&);
-    GenericDocument& d_;
-  };
-
-  // callers of the following private Handler functions
-  // template <typename,typename,typename> friend class GenericReader; // for
-  // parsing
-  template <typename, typename>
-  friend class GenericValue;  // for deep copying
-
- public:
-  // Implementation of Handler
-  bool Null() {
-    new (stack_.template Push<ValueType>()) ValueType();
-    return true;
-  }
-  bool Bool(bool b) {
-    new (stack_.template Push<ValueType>()) ValueType(b);
-    return true;
-  }
-  bool Int(int i) {
-    new (stack_.template Push<ValueType>()) ValueType(i);
-    return true;
-  }
-  bool Uint(unsigned i) {
-    new (stack_.template Push<ValueType>()) ValueType(i);
-    return true;
-  }
-  bool Int64(int64_t i) {
-    new (stack_.template Push<ValueType>()) ValueType(i);
-    return true;
-  }
-  bool Uint64(uint64_t i) {
-    new (stack_.template Push<ValueType>()) ValueType(i);
-    return true;
-  }
-  bool Double(double d) {
-    new (stack_.template Push<ValueType>()) ValueType(d);
-    return true;
-  }
-
-  bool RawNumber(const Ch* str, SizeType length, bool copy) {
-    if (copy)
-      new (stack_.template Push<ValueType>())
-          ValueType(str, length, GetAllocator());
-    else
-      new (stack_.template Push<ValueType>()) ValueType(str, length);
-    return true;
-  }
-
-  bool String(const Ch* str, SizeType length, bool copy) {
-    if (copy)
-      new (stack_.template Push<ValueType>())
-          ValueType(str, length, GetAllocator());
-    else
-      new (stack_.template Push<ValueType>()) ValueType(str, length);
-    return true;
-  }
-
-  bool StartObject() {
-    new (stack_.template Push<ValueType>()) ValueType(kObjectType);
-    return true;
-  }
-
-  bool Key(const Ch* str, SizeType length, bool copy) {
-    return String(str, length, copy);
-  }
-
-  bool EndObject(SizeType memberCount) {
-    typename ValueType::Member* members =
-        stack_.template Pop<typename ValueType::Member>(memberCount);
-    stack_.template Top<ValueType>()->SetObjectRaw(members, memberCount,
-                                                   GetAllocator());
-    return true;
-  }
-
-  bool StartArray() {
-    new (stack_.template Push<ValueType>()) ValueType(kArrayType);
-    return true;
-  }
-
-  bool EndArray(SizeType elementCount) {
-    ValueType* elements = stack_.template Pop<ValueType>(elementCount);
-    stack_.template Top<ValueType>()->SetArrayRaw(elements, elementCount,
-                                                  GetAllocator());
-    return true;
-  }
-
- private:
-  //! Prohibit copying
-  GenericDocument(const GenericDocument&);
-  //! Prohibit assignment
-  GenericDocument& operator=(const GenericDocument&);
-
-  void ClearStack() {
-    if (Allocator::kNeedFree)
-      while (stack_.GetSize() >
-             0)  // Here assumes all elements in stack array are GenericValue
-                 // (Member is actually 2 GenericValue objects)
-        (stack_.template Pop<ValueType>(1))->~ValueType();
-    else
-      stack_.Clear();
-    stack_.ShrinkToFit();
-  }
-
-  void Destroy() { RAPIDJSON_DELETE(ownAllocator_); }
-
-  static const size_t kDefaultStackCapacity = 1024;
-  Allocator* allocator_;
-  Allocator* ownAllocator_;
-  internal::Stack<StackAllocator> stack_;
-  ParseResult parseResult_;
-};
-
-//! GenericDocument with UTF8 encoding
-typedef GenericDocument<UTF8<> > Document;
-
-// defined here due to the dependency on GenericDocument
-template <typename Encoding, typename Allocator>
-template <typename SourceAllocator>
-inline GenericValue<Encoding, Allocator>::GenericValue(
-    const GenericValue<Encoding, SourceAllocator>& rhs,
-    Allocator& allocator) {
-  switch (rhs.GetType()) {
-    case kObjectType:
-    case kArrayType: {  // perform deep copy via SAX Handler
-      GenericDocument<Encoding, Allocator> d(&allocator);
-      rhs.Accept(d);
-      RawAssign(*d.stack_.template Pop<GenericValue>(1));
-    } break;
-    case kStringType:
-      if (rhs.data_.f.flags == kConstStringFlag) {
-        data_.f.flags = rhs.data_.f.flags;
-        data_ = *reinterpret_cast<const Data*>(&rhs.data_);
-      } else {
-        SetStringRaw(StringRef(rhs.GetString(), rhs.GetStringLength()),
-                     allocator);
-      }
-      break;
-    default:
-      data_.f.flags = rhs.data_.f.flags;
-      data_ = *reinterpret_cast<const Data*>(&rhs.data_);
-      break;
-  }
-}
-
-//! Helper class for accessing Value of array type.
-/*!
-    Instance of this helper class is obtained by \c GenericValue::GetArray().
-    In addition to all APIs for array type, it provides range-based for loop if
-   \c RAPIDJSON_HAS_CXX11_RANGE_FOR=1.
-*/
-template <bool Const, typename ValueT>
-class GenericArray {
- public:
-  typedef GenericArray<true, ValueT> ConstArray;
-  typedef GenericArray<false, ValueT> Array;
-  typedef ValueT PlainType;
-  typedef typename internal::MaybeAddConst<Const, PlainType>::Type ValueType;
-  typedef ValueType* ValueIterator;  // This may be const or non-const iterator
-  typedef const ValueT* ConstValueIterator;
-  typedef typename ValueType::AllocatorType AllocatorType;
-  typedef typename ValueType::StringRefType StringRefType;
-
-  template <typename, typename>
-  friend class GenericValue;
-
-  GenericArray(const GenericArray& rhs) : value_(rhs.value_) {}
-  GenericArray& operator=(const GenericArray& rhs) {
-    value_ = rhs.value_;
-    return *this;
-  }
-  ~GenericArray() {}
-
-  SizeType Size() const { return value_.Size(); }
-  SizeType Capacity() const { return value_.Capacity(); }
-  bool Empty() const { return value_.Empty(); }
-  void Clear() const { value_.Clear(); }
-  ValueType& operator[](SizeType index) const { return value_[index]; }
-  ValueIterator Begin() const { return value_.Begin(); }
-  ValueIterator End() const { return value_.End(); }
-  GenericArray Reserve(SizeType newCapacity, AllocatorType& allocator) const {
-    value_.Reserve(newCapacity, allocator);
-    return *this;
-  }
-  GenericArray PushBack(ValueType& value, AllocatorType& allocator) const {
-    value_.PushBack(value, allocator);
-    return *this;
-  }
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericArray PushBack(ValueType&& value, AllocatorType& allocator) const {
-    value_.PushBack(value, allocator);
-    return *this;
-  }
-#endif  // RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericArray PushBack(StringRefType value, AllocatorType& allocator) const {
-    value_.PushBack(value, allocator);
-    return *this;
-  }
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (const GenericArray&))
-  PushBack(T value, AllocatorType& allocator) const {
-    value_.PushBack(value, allocator);
-    return *this;
-  }
-  GenericArray PopBack() const {
-    value_.PopBack();
-    return *this;
-  }
-  ValueIterator Erase(ConstValueIterator pos) const {
-    return value_.Erase(pos);
-  }
-  ValueIterator Erase(ConstValueIterator first, ConstValueIterator last) const {
-    return value_.Erase(first, last);
-  }
-
-#if RAPIDJSON_HAS_CXX11_RANGE_FOR
-  ValueIterator begin() const { return value_.Begin(); }
-  ValueIterator end() const { return value_.End(); }
-#endif
-
- private:
-  GenericArray();
-  GenericArray(ValueType& value) : value_(value) {}
-  ValueType& value_;
-};
-
-//! Helper class for accessing Value of object type.
-/*!
-    Instance of this helper class is obtained by \c GenericValue::GetObject().
-    In addition to all APIs for array type, it provides range-based for loop if
-   \c RAPIDJSON_HAS_CXX11_RANGE_FOR=1.
-*/
-template <bool Const, typename ValueT>
-class GenericObject {
- public:
-  typedef GenericObject<true, ValueT> ConstObject;
-  typedef GenericObject<false, ValueT> Object;
-  typedef ValueT PlainType;
-  typedef typename internal::MaybeAddConst<Const, PlainType>::Type ValueType;
-  typedef GenericMemberIterator<Const,
-                                typename ValueT::EncodingType,
-                                typename ValueT::AllocatorType>
-      MemberIterator;  // This may be const or non-const iterator
-  typedef GenericMemberIterator<true,
-                                typename ValueT::EncodingType,
-                                typename ValueT::AllocatorType>
-      ConstMemberIterator;
-  typedef typename ValueType::AllocatorType AllocatorType;
-  typedef typename ValueType::StringRefType StringRefType;
-  typedef typename ValueType::EncodingType EncodingType;
-  typedef typename ValueType::Ch Ch;
-
-  template <typename, typename>
-  friend class GenericValue;
-
-  GenericObject(const GenericObject& rhs) : value_(rhs.value_) {}
-  GenericObject& operator=(const GenericObject& rhs) {
-    value_ = rhs.value_;
-    return *this;
-  }
-  ~GenericObject() {}
-
-  SizeType MemberCount() const { return value_.MemberCount(); }
-  bool ObjectEmpty() const { return value_.ObjectEmpty(); }
-  template <typename T>
-  ValueType& operator[](T* name) const {
-    return value_[name];
-  }
-  template <typename SourceAllocator>
-  ValueType& operator[](
-      const GenericValue<EncodingType, SourceAllocator>& name) const {
-    return value_[name];
-  }
-#if RAPIDJSON_HAS_STDSTRING
-  ValueType& operator[](const std::basic_string<Ch>& name) const {
-    return value_[name];
-  }
-#endif
-  MemberIterator MemberBegin() const { return value_.MemberBegin(); }
-  MemberIterator MemberEnd() const { return value_.MemberEnd(); }
-  bool HasMember(const Ch* name) const { return value_.HasMember(name); }
-#if RAPIDJSON_HAS_STDSTRING
-  bool HasMember(const std::basic_string<Ch>& name) const {
-    return value_.HasMember(name);
-  }
-#endif
-  template <typename SourceAllocator>
-  bool HasMember(
-      const GenericValue<EncodingType, SourceAllocator>& name) const {
-    return value_.HasMember(name);
-  }
-  MemberIterator FindMember(const Ch* name) const {
-    return value_.FindMember(name);
-  }
-  template <typename SourceAllocator>
-  MemberIterator FindMember(
-      const GenericValue<EncodingType, SourceAllocator>& name) const {
-    return value_.FindMember(name);
-  }
-#if RAPIDJSON_HAS_STDSTRING
-  MemberIterator FindMember(const std::basic_string<Ch>& name) const {
-    return value_.FindMember(name);
-  }
-#endif
-  GenericObject AddMember(ValueType& name,
-                          ValueType& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  GenericObject AddMember(ValueType& name,
-                          StringRefType value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-#if RAPIDJSON_HAS_STDSTRING
-  GenericObject AddMember(ValueType& name,
-                          std::basic_string<Ch>& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-#endif
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (ValueType&))
-  AddMember(ValueType& name, T value, AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericObject AddMember(ValueType&& name,
-                          ValueType&& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  GenericObject AddMember(ValueType&& name,
-                          ValueType& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  GenericObject AddMember(ValueType& name,
-                          ValueType&& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  GenericObject AddMember(StringRefType name,
-                          ValueType&& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-#endif  // RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericObject AddMember(StringRefType name,
-                          ValueType& value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  GenericObject AddMember(StringRefType name,
-                          StringRefType value,
-                          AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (GenericObject))
-  AddMember(StringRefType name, T value, AllocatorType& allocator) const {
-    value_.AddMember(name, value, allocator);
-    return *this;
-  }
-  void RemoveAllMembers() { return value_.RemoveAllMembers(); }
-  bool RemoveMember(const Ch* name) const { return value_.RemoveMember(name); }
-#if RAPIDJSON_HAS_STDSTRING
-  bool RemoveMember(const std::basic_string<Ch>& name) const {
-    return value_.RemoveMember(name);
-  }
-#endif
-  template <typename SourceAllocator>
-  bool RemoveMember(
-      const GenericValue<EncodingType, SourceAllocator>& name) const {
-    return value_.RemoveMember(name);
-  }
-  MemberIterator RemoveMember(MemberIterator m) const {
-    return value_.RemoveMember(m);
-  }
-  MemberIterator EraseMember(ConstMemberIterator pos) const {
-    return value_.EraseMember(pos);
-  }
-  MemberIterator EraseMember(ConstMemberIterator first,
-                             ConstMemberIterator last) const {
-    return value_.EraseMember(first, last);
-  }
-  bool EraseMember(const Ch* name) const { return value_.EraseMember(name); }
-#if RAPIDJSON_HAS_STDSTRING
-  bool EraseMember(const std::basic_string<Ch>& name) const {
-    return EraseMember(ValueType(StringRef(name)));
-  }
-#endif
-  template <typename SourceAllocator>
-  bool EraseMember(
-      const GenericValue<EncodingType, SourceAllocator>& name) const {
-    return value_.EraseMember(name);
-  }
-
-#if RAPIDJSON_HAS_CXX11_RANGE_FOR
-  MemberIterator begin() const { return value_.MemberBegin(); }
-  MemberIterator end() const { return value_.MemberEnd(); }
-#endif
-
- private:
-  GenericObject();
-  GenericObject(ValueType& value) : value_(value) {}
-  ValueType& value_;
-};
-
-RAPIDJSON_NAMESPACE_END
-RAPIDJSON_DIAG_POP
-
-#endif  // RAPIDJSON_DOCUMENT_H_
diff --git a/third_party/rapidjson/encodedstream.h b/third_party/rapidjson/encodedstream.h
deleted file mode 100644
index 14506838..00000000
--- a/third_party/rapidjson/encodedstream.h
+++ /dev/null
@@ -1,299 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_ENCODEDSTREAM_H_
-#define RAPIDJSON_ENCODEDSTREAM_H_
-
-#include "stream.h"
-#include "memorystream.h"
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Input byte stream wrapper with a statically bound encoding.
-/*!
-    \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
-    \tparam InputByteStream Type of input byte stream. For example, FileReadStream.
-*/
-template <typename Encoding, typename InputByteStream>
-class EncodedInputStream {
-    RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-public:
-    typedef typename Encoding::Ch Ch;
-
-    EncodedInputStream(InputByteStream& is) : is_(is) { 
-        current_ = Encoding::TakeBOM(is_);
-    }
-
-    Ch Peek() const { return current_; }
-    Ch Take() { Ch c = current_; current_ = Encoding::Take(is_); return c; }
-    size_t Tell() const { return is_.Tell(); }
-
-    // Not implemented
-    void Put(Ch) { RAPIDJSON_ASSERT(false); }
-    void Flush() { RAPIDJSON_ASSERT(false); } 
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
-    EncodedInputStream(const EncodedInputStream&);
-    EncodedInputStream& operator=(const EncodedInputStream&);
-
-    InputByteStream& is_;
-    Ch current_;
-};
-
-//! Specialized for UTF8 MemoryStream.
-template <>
-class EncodedInputStream<UTF8<>, MemoryStream> {
-public:
-    typedef UTF8<>::Ch Ch;
-
-    EncodedInputStream(MemoryStream& is) : is_(is) {
-        if (static_cast<unsigned char>(is_.Peek()) == 0xEFu) is_.Take();
-        if (static_cast<unsigned char>(is_.Peek()) == 0xBBu) is_.Take();
-        if (static_cast<unsigned char>(is_.Peek()) == 0xBFu) is_.Take();
-    }
-    Ch Peek() const { return is_.Peek(); }
-    Ch Take() { return is_.Take(); }
-    size_t Tell() const { return is_.Tell(); }
-
-    // Not implemented
-    void Put(Ch) {}
-    void Flush() {} 
-    Ch* PutBegin() { return 0; }
-    size_t PutEnd(Ch*) { return 0; }
-
-    MemoryStream& is_;
-
-private:
-    EncodedInputStream(const EncodedInputStream&);
-    EncodedInputStream& operator=(const EncodedInputStream&);
-};
-
-//! Output byte stream wrapper with statically bound encoding.
-/*!
-    \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
-    \tparam OutputByteStream Type of input byte stream. For example, FileWriteStream.
-*/
-template <typename Encoding, typename OutputByteStream>
-class EncodedOutputStream {
-    RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-public:
-    typedef typename Encoding::Ch Ch;
-
-    EncodedOutputStream(OutputByteStream& os, bool putBOM = true) : os_(os) { 
-        if (putBOM)
-            Encoding::PutBOM(os_);
-    }
-
-    void Put(Ch c) { Encoding::Put(os_, c);  }
-    void Flush() { os_.Flush(); }
-
-    // Not implemented
-    Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;}
-    Ch Take() { RAPIDJSON_ASSERT(false); return 0;}
-    size_t Tell() const { RAPIDJSON_ASSERT(false);  return 0; }
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
-    EncodedOutputStream(const EncodedOutputStream&);
-    EncodedOutputStream& operator=(const EncodedOutputStream&);
-
-    OutputByteStream& os_;
-};
-
-#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x
-
-//! Input stream wrapper with dynamically bound encoding and automatic encoding detection.
-/*!
-    \tparam CharType Type of character for reading.
-    \tparam InputByteStream type of input byte stream to be wrapped.
-*/
-template <typename CharType, typename InputByteStream>
-class AutoUTFInputStream {
-    RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-public:
-    typedef CharType Ch;
-
-    //! Constructor.
-    /*!
-        \param is input stream to be wrapped.
-        \param type UTF encoding type if it is not detected from the stream.
-    */
-    AutoUTFInputStream(InputByteStream& is, UTFType type = kUTF8) : is_(&is), type_(type), hasBOM_(false) {
-        RAPIDJSON_ASSERT(type >= kUTF8 && type <= kUTF32BE);        
-        DetectType();
-        static const TakeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Take) };
-        takeFunc_ = f[type_];
-        current_ = takeFunc_(*is_);
-    }
-
-    UTFType GetType() const { return type_; }
-    bool HasBOM() const { return hasBOM_; }
-
-    Ch Peek() const { return current_; }
-    Ch Take() { Ch c = current_; current_ = takeFunc_(*is_); return c; }
-    size_t Tell() const { return is_->Tell(); }
-
-    // Not implemented
-    void Put(Ch) { RAPIDJSON_ASSERT(false); }
-    void Flush() { RAPIDJSON_ASSERT(false); } 
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
-    AutoUTFInputStream(const AutoUTFInputStream&);
-    AutoUTFInputStream& operator=(const AutoUTFInputStream&);
-
-    // Detect encoding type with BOM or RFC 4627
-    void DetectType() {
-        // BOM (Byte Order Mark):
-        // 00 00 FE FF  UTF-32BE
-        // FF FE 00 00  UTF-32LE
-        // FE FF        UTF-16BE
-        // FF FE        UTF-16LE
-        // EF BB BF     UTF-8
-
-        const unsigned char* c = reinterpret_cast<const unsigned char *>(is_->Peek4());
-        if (!c)
-            return;
-
-        unsigned bom = static_cast<unsigned>(c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24));
-        hasBOM_ = false;
-        if (bom == 0xFFFE0000)                  { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
-        else if (bom == 0x0000FEFF)             { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
-        else if ((bom & 0xFFFF) == 0xFFFE)      { type_ = kUTF16BE; hasBOM_ = true; is_->Take(); is_->Take();                           }
-        else if ((bom & 0xFFFF) == 0xFEFF)      { type_ = kUTF16LE; hasBOM_ = true; is_->Take(); is_->Take();                           }
-        else if ((bom & 0xFFFFFF) == 0xBFBBEF)  { type_ = kUTF8;    hasBOM_ = true; is_->Take(); is_->Take(); is_->Take();              }
-
-        // RFC 4627: Section 3
-        // "Since the first two characters of a JSON text will always be ASCII
-        // characters [RFC0020], it is possible to determine whether an octet
-        // stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking
-        // at the pattern of nulls in the first four octets."
-        // 00 00 00 xx  UTF-32BE
-        // 00 xx 00 xx  UTF-16BE
-        // xx 00 00 00  UTF-32LE
-        // xx 00 xx 00  UTF-16LE
-        // xx xx xx xx  UTF-8
-
-        if (!hasBOM_) {
-            unsigned pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
-            switch (pattern) {
-            case 0x08: type_ = kUTF32BE; break;
-            case 0x0A: type_ = kUTF16BE; break;
-            case 0x01: type_ = kUTF32LE; break;
-            case 0x05: type_ = kUTF16LE; break;
-            case 0x0F: type_ = kUTF8;    break;
-            default: break; // Use type defined by user.
-            }
-        }
-
-        // Runtime check whether the size of character type is sufficient. It only perform checks with assertion.
-        if (type_ == kUTF16LE || type_ == kUTF16BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
-        if (type_ == kUTF32LE || type_ == kUTF32BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
-    }
-
-    typedef Ch (*TakeFunc)(InputByteStream& is);
-    InputByteStream* is_;
-    UTFType type_;
-    Ch current_;
-    TakeFunc takeFunc_;
-    bool hasBOM_;
-};
-
-//! Output stream wrapper with dynamically bound encoding and automatic encoding detection.
-/*!
-    \tparam CharType Type of character for writing.
-    \tparam OutputByteStream type of output byte stream to be wrapped.
-*/
-template <typename CharType, typename OutputByteStream>
-class AutoUTFOutputStream {
-    RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-public:
-    typedef CharType Ch;
-
-    //! Constructor.
-    /*!
-        \param os output stream to be wrapped.
-        \param type UTF encoding type.
-        \param putBOM Whether to write BOM at the beginning of the stream.
-    */
-    AutoUTFOutputStream(OutputByteStream& os, UTFType type, bool putBOM) : os_(&os), type_(type) {
-        RAPIDJSON_ASSERT(type >= kUTF8 && type <= kUTF32BE);
-
-        // Runtime check whether the size of character type is sufficient. It only perform checks with assertion.
-        if (type_ == kUTF16LE || type_ == kUTF16BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
-        if (type_ == kUTF32LE || type_ == kUTF32BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
-
-        static const PutFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Put) };
-        putFunc_ = f[type_];
-
-        if (putBOM)
-            PutBOM();
-    }
-
-    UTFType GetType() const { return type_; }
-
-    void Put(Ch c) { putFunc_(*os_, c); }
-    void Flush() { os_->Flush(); } 
-
-    // Not implemented
-    Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;}
-    Ch Take() { RAPIDJSON_ASSERT(false); return 0;}
-    size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
-    AutoUTFOutputStream(const AutoUTFOutputStream&);
-    AutoUTFOutputStream& operator=(const AutoUTFOutputStream&);
-
-    void PutBOM() { 
-        typedef void (*PutBOMFunc)(OutputByteStream&);
-        static const PutBOMFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(PutBOM) };
-        f[type_](*os_);
-    }
-
-    typedef void (*PutFunc)(OutputByteStream&, Ch);
-
-    OutputByteStream* os_;
-    UTFType type_;
-    PutFunc putFunc_;
-};
-
-#undef RAPIDJSON_ENCODINGS_FUNC
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_FILESTREAM_H_
diff --git a/third_party/rapidjson/encodings.h b/third_party/rapidjson/encodings.h
deleted file mode 100644
index baa7c2b1..00000000
--- a/third_party/rapidjson/encodings.h
+++ /dev/null
@@ -1,716 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_ENCODINGS_H_
-#define RAPIDJSON_ENCODINGS_H_
-
-#include "rapidjson.h"
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4244) // conversion from 'type1' to 'type2', possible loss of data
-RAPIDJSON_DIAG_OFF(4702)  // unreachable code
-#elif defined(__GNUC__)
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-RAPIDJSON_DIAG_OFF(overflow)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-// Encoding
-
-/*! \class rapidjson::Encoding
-    \brief Concept for encoding of Unicode characters.
-
-\code
-concept Encoding {
-    typename Ch;    //! Type of character. A "character" is actually a code unit in unicode's definition.
-
-    enum { supportUnicode = 1 }; // or 0 if not supporting unicode
-
-    //! \brief Encode a Unicode codepoint to an output stream.
-    //! \param os Output stream.
-    //! \param codepoint An unicode codepoint, ranging from 0x0 to 0x10FFFF inclusively.
-    template<typename OutputStream>
-    static void Encode(OutputStream& os, unsigned codepoint);
-
-    //! \brief Decode a Unicode codepoint from an input stream.
-    //! \param is Input stream.
-    //! \param codepoint Output of the unicode codepoint.
-    //! \return true if a valid codepoint can be decoded from the stream.
-    template <typename InputStream>
-    static bool Decode(InputStream& is, unsigned* codepoint);
-
-    //! \brief Validate one Unicode codepoint from an encoded stream.
-    //! \param is Input stream to obtain codepoint.
-    //! \param os Output for copying one codepoint.
-    //! \return true if it is valid.
-    //! \note This function just validating and copying the codepoint without actually decode it.
-    template <typename InputStream, typename OutputStream>
-    static bool Validate(InputStream& is, OutputStream& os);
-
-    // The following functions are deal with byte streams.
-
-    //! Take a character from input byte stream, skip BOM if exist.
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is);
-
-    //! Take a character from input byte stream.
-    template <typename InputByteStream>
-    static Ch Take(InputByteStream& is);
-
-    //! Put BOM to output byte stream.
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os);
-
-    //! Put a character to output byte stream.
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, Ch c);
-};
-\endcode
-*/
-
-///////////////////////////////////////////////////////////////////////////////
-// UTF8
-
-//! UTF-8 encoding.
-/*! http://en.wikipedia.org/wiki/UTF-8
-    http://tools.ietf.org/html/rfc3629
-    \tparam CharType Code unit for storing 8-bit UTF-8 data. Default is char.
-    \note implements Encoding concept
-*/
-template<typename CharType = char>
-struct UTF8 {
-    typedef CharType Ch;
-
-    enum { supportUnicode = 1 };
-
-    template<typename OutputStream>
-    static void Encode(OutputStream& os, unsigned codepoint) {
-        if (codepoint <= 0x7F) 
-            os.Put(static_cast<Ch>(codepoint & 0xFF));
-        else if (codepoint <= 0x7FF) {
-            os.Put(static_cast<Ch>(0xC0 | ((codepoint >> 6) & 0xFF)));
-            os.Put(static_cast<Ch>(0x80 | ((codepoint & 0x3F))));
-        }
-        else if (codepoint <= 0xFFFF) {
-            os.Put(static_cast<Ch>(0xE0 | ((codepoint >> 12) & 0xFF)));
-            os.Put(static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
-            os.Put(static_cast<Ch>(0x80 | (codepoint & 0x3F)));
-        }
-        else {
-            RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
-            os.Put(static_cast<Ch>(0xF0 | ((codepoint >> 18) & 0xFF)));
-            os.Put(static_cast<Ch>(0x80 | ((codepoint >> 12) & 0x3F)));
-            os.Put(static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
-            os.Put(static_cast<Ch>(0x80 | (codepoint & 0x3F)));
-        }
-    }
-
-    template<typename OutputStream>
-    static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
-        if (codepoint <= 0x7F) 
-            PutUnsafe(os, static_cast<Ch>(codepoint & 0xFF));
-        else if (codepoint <= 0x7FF) {
-            PutUnsafe(os, static_cast<Ch>(0xC0 | ((codepoint >> 6) & 0xFF)));
-            PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint & 0x3F))));
-        }
-        else if (codepoint <= 0xFFFF) {
-            PutUnsafe(os, static_cast<Ch>(0xE0 | ((codepoint >> 12) & 0xFF)));
-            PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
-            PutUnsafe(os, static_cast<Ch>(0x80 | (codepoint & 0x3F)));
-        }
-        else {
-            RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
-            PutUnsafe(os, static_cast<Ch>(0xF0 | ((codepoint >> 18) & 0xFF)));
-            PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 12) & 0x3F)));
-            PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
-            PutUnsafe(os, static_cast<Ch>(0x80 | (codepoint & 0x3F)));
-        }
-    }
-
-    template <typename InputStream>
-    static bool Decode(InputStream& is, unsigned* codepoint) {
-#define COPY() c = is.Take(); *codepoint = (*codepoint << 6) | (static_cast<unsigned char>(c) & 0x3Fu)
-#define TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
-#define TAIL() COPY(); TRANS(0x70)
-        typename InputStream::Ch c = is.Take();
-        if (!(c & 0x80)) {
-            *codepoint = static_cast<unsigned char>(c);
-            return true;
-        }
-
-        unsigned char type = GetRange(static_cast<unsigned char>(c));
-        if (type >= 32) {
-            *codepoint = 0;
-        } else {
-            *codepoint = (0xFF >> type) & static_cast<unsigned char>(c);
-        }
-        bool result = true;
-        switch (type) {
-        case 2: TAIL(); return result;
-        case 3: TAIL(); TAIL(); return result;
-        case 4: COPY(); TRANS(0x50); TAIL(); return result;
-        case 5: COPY(); TRANS(0x10); TAIL(); TAIL(); return result;
-        case 6: TAIL(); TAIL(); TAIL(); return result;
-        case 10: COPY(); TRANS(0x20); TAIL(); return result;
-        case 11: COPY(); TRANS(0x60); TAIL(); TAIL(); return result;
-        default: return false;
-        }
-#undef COPY
-#undef TRANS
-#undef TAIL
-    }
-
-    template <typename InputStream, typename OutputStream>
-    static bool Validate(InputStream& is, OutputStream& os) {
-#define COPY() os.Put(c = is.Take())
-#define TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
-#define TAIL() COPY(); TRANS(0x70)
-        Ch c;
-        COPY();
-        if (!(c & 0x80))
-            return true;
-
-        bool result = true;
-        switch (GetRange(static_cast<unsigned char>(c))) {
-        case 2: TAIL(); return result;
-        case 3: TAIL(); TAIL(); return result;
-        case 4: COPY(); TRANS(0x50); TAIL(); return result;
-        case 5: COPY(); TRANS(0x10); TAIL(); TAIL(); return result;
-        case 6: TAIL(); TAIL(); TAIL(); return result;
-        case 10: COPY(); TRANS(0x20); TAIL(); return result;
-        case 11: COPY(); TRANS(0x60); TAIL(); TAIL(); return result;
-        default: return false;
-        }
-#undef COPY
-#undef TRANS
-#undef TAIL
-    }
-
-    static unsigned char GetRange(unsigned char c) {
-        // Referring to DFA of http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
-        // With new mapping 1 -> 0x10, 7 -> 0x20, 9 -> 0x40, such that AND operation can test multiple types.
-        static const unsigned char type[] = {
-            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-            0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
-            0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,
-            0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
-            0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
-            8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,  2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
-            10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
-        };
-        return type[c];
-    }
-
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        typename InputByteStream::Ch c = Take(is);
-        if (static_cast<unsigned char>(c) != 0xEFu) return c;
-        c = is.Take();
-        if (static_cast<unsigned char>(c) != 0xBBu) return c;
-        c = is.Take();
-        if (static_cast<unsigned char>(c) != 0xBFu) return c;
-        c = is.Take();
-        return c;
-    }
-
-    template <typename InputByteStream>
-    static Ch Take(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        return static_cast<Ch>(is.Take());
-    }
-
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xEFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xBBu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xBFu));
-    }
-
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, Ch c) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(c));
-    }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// UTF16
-
-//! UTF-16 encoding.
-/*! http://en.wikipedia.org/wiki/UTF-16
-    http://tools.ietf.org/html/rfc2781
-    \tparam CharType Type for storing 16-bit UTF-16 data. Default is wchar_t. C++11 may use char16_t instead.
-    \note implements Encoding concept
-
-    \note For in-memory access, no need to concern endianness. The code units and code points are represented by CPU's endianness.
-    For streaming, use UTF16LE and UTF16BE, which handle endianness.
-*/
-template<typename CharType = wchar_t>
-struct UTF16 {
-    typedef CharType Ch;
-    RAPIDJSON_STATIC_ASSERT(sizeof(Ch) >= 2);
-
-    enum { supportUnicode = 1 };
-
-    template<typename OutputStream>
-    static void Encode(OutputStream& os, unsigned codepoint) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2);
-        if (codepoint <= 0xFFFF) {
-            RAPIDJSON_ASSERT(codepoint < 0xD800 || codepoint > 0xDFFF); // Code point itself cannot be surrogate pair 
-            os.Put(static_cast<typename OutputStream::Ch>(codepoint));
-        }
-        else {
-            RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
-            unsigned v = codepoint - 0x10000;
-            os.Put(static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800));
-            os.Put((v & 0x3FF) | 0xDC00);
-        }
-    }
-
-
-    template<typename OutputStream>
-    static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2);
-        if (codepoint <= 0xFFFF) {
-            RAPIDJSON_ASSERT(codepoint < 0xD800 || codepoint > 0xDFFF); // Code point itself cannot be surrogate pair 
-            PutUnsafe(os, static_cast<typename OutputStream::Ch>(codepoint));
-        }
-        else {
-            RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
-            unsigned v = codepoint - 0x10000;
-            PutUnsafe(os, static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800));
-            PutUnsafe(os, (v & 0x3FF) | 0xDC00);
-        }
-    }
-
-    template <typename InputStream>
-    static bool Decode(InputStream& is, unsigned* codepoint) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2);
-        typename InputStream::Ch c = is.Take();
-        if (c < 0xD800 || c > 0xDFFF) {
-            *codepoint = static_cast<unsigned>(c);
-            return true;
-        }
-        else if (c <= 0xDBFF) {
-            *codepoint = (static_cast<unsigned>(c) & 0x3FF) << 10;
-            c = is.Take();
-            *codepoint |= (static_cast<unsigned>(c) & 0x3FF);
-            *codepoint += 0x10000;
-            return c >= 0xDC00 && c <= 0xDFFF;
-        }
-        return false;
-    }
-
-    template <typename InputStream, typename OutputStream>
-    static bool Validate(InputStream& is, OutputStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2);
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2);
-        typename InputStream::Ch c;
-        os.Put(static_cast<typename OutputStream::Ch>(c = is.Take()));
-        if (c < 0xD800 || c > 0xDFFF)
-            return true;
-        else if (c <= 0xDBFF) {
-            os.Put(c = is.Take());
-            return c >= 0xDC00 && c <= 0xDFFF;
-        }
-        return false;
-    }
-};
-
-//! UTF-16 little endian encoding.
-template<typename CharType = wchar_t>
-struct UTF16LE : UTF16<CharType> {
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        CharType c = Take(is);
-        return static_cast<uint16_t>(c) == 0xFEFFu ? Take(is) : c;
-    }
-
-    template <typename InputByteStream>
-    static CharType Take(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        unsigned c = static_cast<uint8_t>(is.Take());
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
-        return static_cast<CharType>(c);
-    }
-
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
-    }
-
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, CharType c) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(static_cast<unsigned>(c) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>((static_cast<unsigned>(c) >> 8) & 0xFFu));
-    }
-};
-
-//! UTF-16 big endian encoding.
-template<typename CharType = wchar_t>
-struct UTF16BE : UTF16<CharType> {
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        CharType c = Take(is);
-        return static_cast<uint16_t>(c) == 0xFEFFu ? Take(is) : c;
-    }
-
-    template <typename InputByteStream>
-    static CharType Take(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
-        c |= static_cast<uint8_t>(is.Take());
-        return static_cast<CharType>(c);
-    }
-
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
-    }
-
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, CharType c) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>((static_cast<unsigned>(c) >> 8) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(static_cast<unsigned>(c) & 0xFFu));
-    }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// UTF32
-
-//! UTF-32 encoding. 
-/*! http://en.wikipedia.org/wiki/UTF-32
-    \tparam CharType Type for storing 32-bit UTF-32 data. Default is unsigned. C++11 may use char32_t instead.
-    \note implements Encoding concept
-
-    \note For in-memory access, no need to concern endianness. The code units and code points are represented by CPU's endianness.
-    For streaming, use UTF32LE and UTF32BE, which handle endianness.
-*/
-template<typename CharType = unsigned>
-struct UTF32 {
-    typedef CharType Ch;
-    RAPIDJSON_STATIC_ASSERT(sizeof(Ch) >= 4);
-
-    enum { supportUnicode = 1 };
-
-    template<typename OutputStream>
-    static void Encode(OutputStream& os, unsigned codepoint) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 4);
-        RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
-        os.Put(codepoint);
-    }
-
-    template<typename OutputStream>
-    static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 4);
-        RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
-        PutUnsafe(os, codepoint);
-    }
-
-    template <typename InputStream>
-    static bool Decode(InputStream& is, unsigned* codepoint) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 4);
-        Ch c = is.Take();
-        *codepoint = c;
-        return c <= 0x10FFFF;
-    }
-
-    template <typename InputStream, typename OutputStream>
-    static bool Validate(InputStream& is, OutputStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 4);
-        Ch c;
-        os.Put(c = is.Take());
-        return c <= 0x10FFFF;
-    }
-};
-
-//! UTF-32 little endian enocoding.
-template<typename CharType = unsigned>
-struct UTF32LE : UTF32<CharType> {
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        CharType c = Take(is);
-        return static_cast<uint32_t>(c) == 0x0000FEFFu ? Take(is) : c;
-    }
-
-    template <typename InputByteStream>
-    static CharType Take(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        unsigned c = static_cast<uint8_t>(is.Take());
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 16;
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 24;
-        return static_cast<CharType>(c);
-    }
-
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
-    }
-
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, CharType c) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(c & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>((c >> 8) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>((c >> 16) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>((c >> 24) & 0xFFu));
-    }
-};
-
-//! UTF-32 big endian encoding.
-template<typename CharType = unsigned>
-struct UTF32BE : UTF32<CharType> {
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        CharType c = Take(is);
-        return static_cast<uint32_t>(c) == 0x0000FEFFu ? Take(is) : c; 
-    }
-
-    template <typename InputByteStream>
-    static CharType Take(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 24;
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 16;
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
-        c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take()));
-        return static_cast<CharType>(c);
-    }
-
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
-    }
-
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, CharType c) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>((c >> 24) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>((c >> 16) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>((c >> 8) & 0xFFu));
-        os.Put(static_cast<typename OutputByteStream::Ch>(c & 0xFFu));
-    }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// ASCII
-
-//! ASCII encoding.
-/*! http://en.wikipedia.org/wiki/ASCII
-    \tparam CharType Code unit for storing 7-bit ASCII data. Default is char.
-    \note implements Encoding concept
-*/
-template<typename CharType = char>
-struct ASCII {
-    typedef CharType Ch;
-
-    enum { supportUnicode = 0 };
-
-    template<typename OutputStream>
-    static void Encode(OutputStream& os, unsigned codepoint) {
-        RAPIDJSON_ASSERT(codepoint <= 0x7F);
-        os.Put(static_cast<Ch>(codepoint & 0xFF));
-    }
-
-    template<typename OutputStream>
-    static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
-        RAPIDJSON_ASSERT(codepoint <= 0x7F);
-        PutUnsafe(os, static_cast<Ch>(codepoint & 0xFF));
-    }
-
-    template <typename InputStream>
-    static bool Decode(InputStream& is, unsigned* codepoint) {
-        uint8_t c = static_cast<uint8_t>(is.Take());
-        *codepoint = c;
-        return c <= 0X7F;
-    }
-
-    template <typename InputStream, typename OutputStream>
-    static bool Validate(InputStream& is, OutputStream& os) {
-        uint8_t c = static_cast<uint8_t>(is.Take());
-        os.Put(static_cast<typename OutputStream::Ch>(c));
-        return c <= 0x7F;
-    }
-
-    template <typename InputByteStream>
-    static CharType TakeBOM(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        uint8_t c = static_cast<uint8_t>(Take(is));
-        return static_cast<Ch>(c);
-    }
-
-    template <typename InputByteStream>
-    static Ch Take(InputByteStream& is) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-        return static_cast<Ch>(is.Take());
-    }
-
-    template <typename OutputByteStream>
-    static void PutBOM(OutputByteStream& os) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        (void)os;
-    }
-
-    template <typename OutputByteStream>
-    static void Put(OutputByteStream& os, Ch c) {
-        RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-        os.Put(static_cast<typename OutputByteStream::Ch>(c));
-    }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// AutoUTF
-
-//! Runtime-specified UTF encoding type of a stream.
-enum UTFType {
-    kUTF8 = 0,      //!< UTF-8.
-    kUTF16LE = 1,   //!< UTF-16 little endian.
-    kUTF16BE = 2,   //!< UTF-16 big endian.
-    kUTF32LE = 3,   //!< UTF-32 little endian.
-    kUTF32BE = 4    //!< UTF-32 big endian.
-};
-
-//! Dynamically select encoding according to stream's runtime-specified UTF encoding type.
-/*! \note This class can be used with AutoUTFInputtStream and AutoUTFOutputStream, which provides GetType().
-*/
-template<typename CharType>
-struct AutoUTF {
-    typedef CharType Ch;
-
-    enum { supportUnicode = 1 };
-
-#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x
-
-    template<typename OutputStream>
-    RAPIDJSON_FORCEINLINE static void Encode(OutputStream& os, unsigned codepoint) {
-        typedef void (*EncodeFunc)(OutputStream&, unsigned);
-        static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Encode) };
-        (*f[os.GetType()])(os, codepoint);
-    }
-
-    template<typename OutputStream>
-    RAPIDJSON_FORCEINLINE static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
-        typedef void (*EncodeFunc)(OutputStream&, unsigned);
-        static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(EncodeUnsafe) };
-        (*f[os.GetType()])(os, codepoint);
-    }
-
-    template <typename InputStream>
-    RAPIDJSON_FORCEINLINE static bool Decode(InputStream& is, unsigned* codepoint) {
-        typedef bool (*DecodeFunc)(InputStream&, unsigned*);
-        static const DecodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Decode) };
-        return (*f[is.GetType()])(is, codepoint);
-    }
-
-    template <typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) {
-        typedef bool (*ValidateFunc)(InputStream&, OutputStream&);
-        static const ValidateFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Validate) };
-        return (*f[is.GetType()])(is, os);
-    }
-
-#undef RAPIDJSON_ENCODINGS_FUNC
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// Transcoder
-
-//! Encoding conversion.
-template<typename SourceEncoding, typename TargetEncoding>
-struct Transcoder {
-    //! Take one Unicode codepoint from source encoding, convert it to target encoding and put it to the output stream.
-    template<typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool Transcode(InputStream& is, OutputStream& os) {
-        unsigned codepoint;
-        if (!SourceEncoding::Decode(is, &codepoint))
-            return false;
-        TargetEncoding::Encode(os, codepoint);
-        return true;
-    }
-
-    template<typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
-        unsigned codepoint;
-        if (!SourceEncoding::Decode(is, &codepoint))
-            return false;
-        TargetEncoding::EncodeUnsafe(os, codepoint);
-        return true;
-    }
-
-    //! Validate one Unicode codepoint from an encoded stream.
-    template<typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) {
-        return Transcode(is, os);   // Since source/target encoding is different, must transcode.
-    }
-};
-
-// Forward declaration.
-template<typename Stream>
-inline void PutUnsafe(Stream& stream, typename Stream::Ch c);
-
-//! Specialization of Transcoder with same source and target encoding.
-template<typename Encoding>
-struct Transcoder<Encoding, Encoding> {
-    template<typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool Transcode(InputStream& is, OutputStream& os) {
-        os.Put(is.Take());  // Just copy one code unit. This semantic is different from primary template class.
-        return true;
-    }
-    
-    template<typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
-        PutUnsafe(os, is.Take());  // Just copy one code unit. This semantic is different from primary template class.
-        return true;
-    }
-    
-    template<typename InputStream, typename OutputStream>
-    RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) {
-        return Encoding::Validate(is, os);  // source/target encoding are the same
-    }
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#if defined(__GNUC__) || defined(_MSC_VER)
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_ENCODINGS_H_
diff --git a/third_party/rapidjson/error/en.h b/third_party/rapidjson/error/en.h
deleted file mode 100644
index 2db838bf..00000000
--- a/third_party/rapidjson/error/en.h
+++ /dev/null
@@ -1,74 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_ERROR_EN_H_
-#define RAPIDJSON_ERROR_EN_H_
-
-#include "error.h"
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(switch-enum)
-RAPIDJSON_DIAG_OFF(covered-switch-default)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Maps error code of parsing into error message.
-/*!
-    \ingroup RAPIDJSON_ERRORS
-    \param parseErrorCode Error code obtained in parsing.
-    \return the error message.
-    \note User can make a copy of this function for localization.
-        Using switch-case is safer for future modification of error codes.
-*/
-inline const RAPIDJSON_ERROR_CHARTYPE* GetParseError_En(ParseErrorCode parseErrorCode) {
-    switch (parseErrorCode) {
-        case kParseErrorNone:                           return RAPIDJSON_ERROR_STRING("No error.");
-
-        case kParseErrorDocumentEmpty:                  return RAPIDJSON_ERROR_STRING("The document is empty.");
-        case kParseErrorDocumentRootNotSingular:        return RAPIDJSON_ERROR_STRING("The document root must not be followed by other values.");
-    
-        case kParseErrorValueInvalid:                   return RAPIDJSON_ERROR_STRING("Invalid value.");
-    
-        case kParseErrorObjectMissName:                 return RAPIDJSON_ERROR_STRING("Missing a name for object member.");
-        case kParseErrorObjectMissColon:                return RAPIDJSON_ERROR_STRING("Missing a colon after a name of object member.");
-        case kParseErrorObjectMissCommaOrCurlyBracket:  return RAPIDJSON_ERROR_STRING("Missing a comma or '}' after an object member.");
-    
-        case kParseErrorArrayMissCommaOrSquareBracket:  return RAPIDJSON_ERROR_STRING("Missing a comma or ']' after an array element.");
-
-        case kParseErrorStringUnicodeEscapeInvalidHex:  return RAPIDJSON_ERROR_STRING("Incorrect hex digit after \\u escape in string.");
-        case kParseErrorStringUnicodeSurrogateInvalid:  return RAPIDJSON_ERROR_STRING("The surrogate pair in string is invalid.");
-        case kParseErrorStringEscapeInvalid:            return RAPIDJSON_ERROR_STRING("Invalid escape character in string.");
-        case kParseErrorStringMissQuotationMark:        return RAPIDJSON_ERROR_STRING("Missing a closing quotation mark in string.");
-        case kParseErrorStringInvalidEncoding:          return RAPIDJSON_ERROR_STRING("Invalid encoding in string.");
-
-        case kParseErrorNumberTooBig:                   return RAPIDJSON_ERROR_STRING("Number too big to be stored in double.");
-        case kParseErrorNumberMissFraction:             return RAPIDJSON_ERROR_STRING("Miss fraction part in number.");
-        case kParseErrorNumberMissExponent:             return RAPIDJSON_ERROR_STRING("Miss exponent in number.");
-
-        case kParseErrorTermination:                    return RAPIDJSON_ERROR_STRING("Terminate parsing due to Handler error.");
-        case kParseErrorUnspecificSyntaxError:          return RAPIDJSON_ERROR_STRING("Unspecific syntax error.");
-
-        default:                                        return RAPIDJSON_ERROR_STRING("Unknown error.");
-    }
-}
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_ERROR_EN_H_
diff --git a/third_party/rapidjson/error/error.h b/third_party/rapidjson/error/error.h
deleted file mode 100644
index f8058477..00000000
--- a/third_party/rapidjson/error/error.h
+++ /dev/null
@@ -1,172 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_ERROR_ERROR_H_
-#define RAPIDJSON_ERROR_ERROR_H_
-
-#include "rapidjson/rapidjson.h"
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-/*! \file error.h */
-
-/*! \defgroup RAPIDJSON_ERRORS RapidJSON error handling */
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_ERROR_CHARTYPE
-
-//! Character type of error messages.
-/*! \ingroup RAPIDJSON_ERRORS
-    The default character type is \c char.
-    On Windows, user can define this macro as \c TCHAR for supporting both
-    unicode/non-unicode settings.
-*/
-#ifndef RAPIDJSON_ERROR_CHARTYPE
-#define RAPIDJSON_ERROR_CHARTYPE char
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_ERROR_STRING
-
-//! Macro for converting string literial to \ref RAPIDJSON_ERROR_CHARTYPE[].
-/*! \ingroup RAPIDJSON_ERRORS
-    By default this conversion macro does nothing.
-    On Windows, user can define this macro as \c _T(x) for supporting both
-    unicode/non-unicode settings.
-*/
-#ifndef RAPIDJSON_ERROR_STRING
-#define RAPIDJSON_ERROR_STRING(x) x
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-// ParseErrorCode
-
-//! Error code of parsing.
-/*! \ingroup RAPIDJSON_ERRORS
-    \see GenericReader::Parse, GenericReader::GetParseErrorCode
-*/
-enum ParseErrorCode {
-  kParseErrorNone = 0,  //!< No error.
-
-  kParseErrorDocumentEmpty,            //!< The document is empty.
-  kParseErrorDocumentRootNotSingular,  //!< The document root must not follow by
-                                       //!< other values.
-
-  kParseErrorValueInvalid,  //!< Invalid value.
-
-  kParseErrorObjectMissName,   //!< Missing a name for object member.
-  kParseErrorObjectMissColon,  //!< Missing a colon after a name of object
-                               //!< member.
-  kParseErrorObjectMissCommaOrCurlyBracket,  //!< Missing a comma or '}' after
-                                             //!< an object member.
-
-  kParseErrorArrayMissCommaOrSquareBracket,  //!< Missing a comma or ']' after
-                                             //!< an array element.
-
-  kParseErrorStringUnicodeEscapeInvalidHex,  //!< Incorrect hex digit after \\u
-                                             //!< escape in string.
-  kParseErrorStringUnicodeSurrogateInvalid,  //!< The surrogate pair in string
-                                             //!< is invalid.
-  kParseErrorStringEscapeInvalid,      //!< Invalid escape character in string.
-  kParseErrorStringMissQuotationMark,  //!< Missing a closing quotation mark in
-                                       //!< string.
-  kParseErrorStringInvalidEncoding,    //!< Invalid encoding in string.
-
-  kParseErrorNumberTooBig,        //!< Number too big to be stored in double.
-  kParseErrorNumberMissFraction,  //!< Miss fraction part in number.
-  kParseErrorNumberMissExponent,  //!< Miss exponent in number.
-
-  kParseErrorTermination,           //!< Parsing was terminated.
-  kParseErrorUnspecificSyntaxError  //!< Unspecific syntax error.
-};
-
-//! Result of parsing (wraps ParseErrorCode)
-/*!
-    \ingroup RAPIDJSON_ERRORS
-    \code
-        Document doc;
-        ParseResult ok = doc.Parse("[42]");
-        if (!ok) {
-            fprintf(stderr, "JSON parse error: %s (%u)",
-                    GetParseError_En(ok.Code()), ok.Offset());
-            exit(EXIT_FAILURE);
-        }
-    \endcode
-    \see GenericReader::Parse, GenericDocument::Parse
-*/
-struct ParseResult {
- public:
-  //! Default constructor, no error.
-  ParseResult() : code_(kParseErrorNone), offset_(0) {}
-  //! Constructor to set an error.
-  ParseResult(ParseErrorCode code, size_t offset)
-      : code_(code), offset_(offset) {}
-
-  //! Get the error code.
-  ParseErrorCode Code() const { return code_; }
-  //! Get the error offset, if \ref IsError(), 0 otherwise.
-  size_t Offset() const { return offset_; }
-
-  //! Conversion to \c bool, returns \c true, iff !\ref IsError().
-  operator bool() const { return !IsError(); }
-  //! Whether the result is an error.
-  bool IsError() const { return code_ != kParseErrorNone; }
-
-  bool operator==(const ParseResult& that) const { return code_ == that.code_; }
-  bool operator==(ParseErrorCode code) const { return code_ == code; }
-  friend bool operator==(ParseErrorCode code, const ParseResult& err) {
-    return code == err.code_;
-  }
-
-  //! Reset error code.
-  void Clear() { Set(kParseErrorNone); }
-  //! Update error code and offset.
-  void Set(ParseErrorCode code, size_t offset = 0) {
-    code_ = code;
-    offset_ = offset;
-  }
-
- private:
-  ParseErrorCode code_;
-  size_t offset_;
-};
-
-//! Function pointer type of GetParseError().
-/*! \ingroup RAPIDJSON_ERRORS
-
-    This is the prototype for \c GetParseError_X(), where \c X is a locale.
-    User can dynamically change locale in runtime, e.g.:
-\code
-    GetParseErrorFunc GetParseError = GetParseError_En; // or whatever
-    const RAPIDJSON_ERROR_CHARTYPE* s =
-GetParseError(document.GetParseErrorCode()); \endcode
-*/
-typedef const RAPIDJSON_ERROR_CHARTYPE* (*GetParseErrorFunc)(ParseErrorCode);
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_ERROR_ERROR_H_
diff --git a/third_party/rapidjson/filereadstream.h b/third_party/rapidjson/filereadstream.h
deleted file mode 100644
index b56ea13b..00000000
--- a/third_party/rapidjson/filereadstream.h
+++ /dev/null
@@ -1,99 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_FILEREADSTREAM_H_
-#define RAPIDJSON_FILEREADSTREAM_H_
-
-#include "stream.h"
-#include <cstdio>
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-RAPIDJSON_DIAG_OFF(unreachable-code)
-RAPIDJSON_DIAG_OFF(missing-noreturn)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! File byte stream for input using fread().
-/*!
-    \note implements Stream concept
-*/
-class FileReadStream {
-public:
-    typedef char Ch;    //!< Character type (byte).
-
-    //! Constructor.
-    /*!
-        \param fp File pointer opened for read.
-        \param buffer user-supplied buffer.
-        \param bufferSize size of buffer in bytes. Must >=4 bytes.
-    */
-    FileReadStream(std::FILE* fp, char* buffer, size_t bufferSize) : fp_(fp), buffer_(buffer), bufferSize_(bufferSize), bufferLast_(0), current_(buffer_), readCount_(0), count_(0), eof_(false) { 
-        RAPIDJSON_ASSERT(fp_ != 0);
-        RAPIDJSON_ASSERT(bufferSize >= 4);
-        Read();
-    }
-
-    Ch Peek() const { return *current_; }
-    Ch Take() { Ch c = *current_; Read(); return c; }
-    size_t Tell() const { return count_ + static_cast<size_t>(current_ - buffer_); }
-
-    // Not implemented
-    void Put(Ch) { RAPIDJSON_ASSERT(false); }
-    void Flush() { RAPIDJSON_ASSERT(false); } 
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-    // For encoding detection only.
-    const Ch* Peek4() const {
-        return (current_ + 4 <= bufferLast_) ? current_ : 0;
-    }
-
-private:
-    void Read() {
-        if (current_ < bufferLast_)
-            ++current_;
-        else if (!eof_) {
-            count_ += readCount_;
-            readCount_ = fread(buffer_, 1, bufferSize_, fp_);
-            bufferLast_ = buffer_ + readCount_ - 1;
-            current_ = buffer_;
-
-            if (readCount_ < bufferSize_) {
-                buffer_[readCount_] = '\0';
-                ++bufferLast_;
-                eof_ = true;
-            }
-        }
-    }
-
-    std::FILE* fp_;
-    Ch *buffer_;
-    size_t bufferSize_;
-    Ch *bufferLast_;
-    Ch *current_;
-    size_t readCount_;
-    size_t count_;  //!< Number of characters read
-    bool eof_;
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_FILESTREAM_H_
diff --git a/third_party/rapidjson/filewritestream.h b/third_party/rapidjson/filewritestream.h
deleted file mode 100644
index 6378dd60..00000000
--- a/third_party/rapidjson/filewritestream.h
+++ /dev/null
@@ -1,104 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_FILEWRITESTREAM_H_
-#define RAPIDJSON_FILEWRITESTREAM_H_
-
-#include "stream.h"
-#include <cstdio>
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(unreachable-code)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Wrapper of C file stream for input using fread().
-/*!
-    \note implements Stream concept
-*/
-class FileWriteStream {
-public:
-    typedef char Ch;    //!< Character type. Only support char.
-
-    FileWriteStream(std::FILE* fp, char* buffer, size_t bufferSize) : fp_(fp), buffer_(buffer), bufferEnd_(buffer + bufferSize), current_(buffer_) { 
-        RAPIDJSON_ASSERT(fp_ != 0);
-    }
-
-    void Put(char c) { 
-        if (current_ >= bufferEnd_)
-            Flush();
-
-        *current_++ = c;
-    }
-
-    void PutN(char c, size_t n) {
-        size_t avail = static_cast<size_t>(bufferEnd_ - current_);
-        while (n > avail) {
-            std::memset(current_, c, avail);
-            current_ += avail;
-            Flush();
-            n -= avail;
-            avail = static_cast<size_t>(bufferEnd_ - current_);
-        }
-
-        if (n > 0) {
-            std::memset(current_, c, n);
-            current_ += n;
-        }
-    }
-
-    void Flush() {
-        if (current_ != buffer_) {
-            size_t result = fwrite(buffer_, 1, static_cast<size_t>(current_ - buffer_), fp_);
-            if (result < static_cast<size_t>(current_ - buffer_)) {
-                // failure deliberately ignored at this time
-                // added to avoid warn_unused_result build errors
-            }
-            current_ = buffer_;
-        }
-    }
-
-    // Not implemented
-    char Peek() const { RAPIDJSON_ASSERT(false); return 0; }
-    char Take() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
-    char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
-    // Prohibit copy constructor & assignment operator.
-    FileWriteStream(const FileWriteStream&);
-    FileWriteStream& operator=(const FileWriteStream&);
-
-    std::FILE* fp_;
-    char *buffer_;
-    char *bufferEnd_;
-    char *current_;
-};
-
-//! Implement specialized version of PutN() with memset() for better performance.
-template<>
-inline void PutN(FileWriteStream& stream, char c, size_t n) {
-    stream.PutN(c, n);
-}
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_FILESTREAM_H_
diff --git a/third_party/rapidjson/fwd.h b/third_party/rapidjson/fwd.h
deleted file mode 100644
index e8104e84..00000000
--- a/third_party/rapidjson/fwd.h
+++ /dev/null
@@ -1,151 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_FWD_H_
-#define RAPIDJSON_FWD_H_
-
-#include "rapidjson.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-// encodings.h
-
-template<typename CharType> struct UTF8;
-template<typename CharType> struct UTF16;
-template<typename CharType> struct UTF16BE;
-template<typename CharType> struct UTF16LE;
-template<typename CharType> struct UTF32;
-template<typename CharType> struct UTF32BE;
-template<typename CharType> struct UTF32LE;
-template<typename CharType> struct ASCII;
-template<typename CharType> struct AutoUTF;
-
-template<typename SourceEncoding, typename TargetEncoding>
-struct Transcoder;
-
-// allocators.h
-
-class CrtAllocator;
-
-template <typename BaseAllocator>
-class MemoryPoolAllocator;
-
-// stream.h
-
-template <typename Encoding>
-struct GenericStringStream;
-
-typedef GenericStringStream<UTF8<char> > StringStream;
-
-template <typename Encoding>
-struct GenericInsituStringStream;
-
-typedef GenericInsituStringStream<UTF8<char> > InsituStringStream;
-
-// stringbuffer.h
-
-template <typename Encoding, typename Allocator>
-class GenericStringBuffer;
-
-typedef GenericStringBuffer<UTF8<char>, CrtAllocator> StringBuffer;
-
-// filereadstream.h
-
-class FileReadStream;
-
-// filewritestream.h
-
-class FileWriteStream;
-
-// memorybuffer.h
-
-template <typename Allocator>
-struct GenericMemoryBuffer;
-
-typedef GenericMemoryBuffer<CrtAllocator> MemoryBuffer;
-
-// memorystream.h
-
-struct MemoryStream;
-
-// reader.h
-
-template<typename Encoding, typename Derived>
-struct BaseReaderHandler;
-
-template <typename SourceEncoding, typename TargetEncoding, typename StackAllocator>
-class GenericReader;
-
-typedef GenericReader<UTF8<char>, UTF8<char>, CrtAllocator> Reader;
-
-// writer.h
-
-template<typename OutputStream, typename SourceEncoding, typename TargetEncoding, typename StackAllocator, unsigned writeFlags>
-class Writer;
-
-// prettywriter.h
-
-template<typename OutputStream, typename SourceEncoding, typename TargetEncoding, typename StackAllocator, unsigned writeFlags>
-class PrettyWriter;
-
-// document.h
-
-template <typename Encoding, typename Allocator> 
-struct GenericMember;
-
-template <bool Const, typename Encoding, typename Allocator>
-class GenericMemberIterator;
-
-template<typename CharType>
-struct GenericStringRef;
-
-template <typename Encoding, typename Allocator> 
-class GenericValue;
-
-typedef GenericValue<UTF8<char>, MemoryPoolAllocator<CrtAllocator> > Value;
-
-template <typename Encoding, typename Allocator, typename StackAllocator>
-class GenericDocument;
-
-typedef GenericDocument<UTF8<char>, MemoryPoolAllocator<CrtAllocator>, CrtAllocator> Document;
-
-// pointer.h
-
-template <typename ValueType, typename Allocator>
-class GenericPointer;
-
-typedef GenericPointer<Value, CrtAllocator> Pointer;
-
-// schema.h
-
-template <typename SchemaDocumentType>
-class IGenericRemoteSchemaDocumentProvider;
-
-template <typename ValueT, typename Allocator>
-class GenericSchemaDocument;
-
-typedef GenericSchemaDocument<Value, CrtAllocator> SchemaDocument;
-typedef IGenericRemoteSchemaDocumentProvider<SchemaDocument> IRemoteSchemaDocumentProvider;
-
-template <
-    typename SchemaDocumentType,
-    typename OutputHandler,
-    typename StateAllocator>
-class GenericSchemaValidator;
-
-typedef GenericSchemaValidator<SchemaDocument, BaseReaderHandler<UTF8<char>, void>, CrtAllocator> SchemaValidator;
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_RAPIDJSONFWD_H_
diff --git a/third_party/rapidjson/internal/biginteger.h b/third_party/rapidjson/internal/biginteger.h
deleted file mode 100644
index bd6c0539..00000000
--- a/third_party/rapidjson/internal/biginteger.h
+++ /dev/null
@@ -1,319 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_BIGINTEGER_H_
-#define RAPIDJSON_BIGINTEGER_H_
-
-#include "rapidjson/rapidjson.h"
-
-#if defined(_MSC_VER) && defined(_M_AMD64)
-#include <intrin.h>  // for _umul128
-#pragma intrinsic(_umul128)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-class BigInteger {
- public:
-  typedef uint64_t Type;
-
-  BigInteger(const BigInteger& rhs) : count_(rhs.count_) {
-    std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type));
-  }
-
-  explicit BigInteger(uint64_t u) : count_(1) { digits_[0] = u; }
-
-  BigInteger(const char* decimals, size_t length) : count_(1) {
-    RAPIDJSON_ASSERT(length > 0);
-    digits_[0] = 0;
-    size_t i = 0;
-    const size_t kMaxDigitPerIteration =
-        19;  // 2^64 = 18446744073709551616 > 10^19
-    while (length >= kMaxDigitPerIteration) {
-      AppendDecimal64(decimals + i, decimals + i + kMaxDigitPerIteration);
-      length -= kMaxDigitPerIteration;
-      i += kMaxDigitPerIteration;
-    }
-
-    if (length > 0)
-      AppendDecimal64(decimals + i, decimals + i + length);
-  }
-
-  BigInteger& operator=(const BigInteger& rhs) {
-    if (this != &rhs) {
-      count_ = rhs.count_;
-      std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type));
-    }
-    return *this;
-  }
-
-  BigInteger& operator=(uint64_t u) {
-    digits_[0] = u;
-    count_ = 1;
-    return *this;
-  }
-
-  BigInteger& operator+=(uint64_t u) {
-    Type backup = digits_[0];
-    digits_[0] += u;
-    for (size_t i = 0; i < count_ - 1; i++) {
-      if (digits_[i] >= backup)
-        return *this;  // no carry
-      backup = digits_[i + 1];
-      digits_[i + 1] += 1;
-    }
-
-    // Last carry
-    if (digits_[count_ - 1] < backup)
-      PushBack(1);
-
-    return *this;
-  }
-
-  BigInteger& operator*=(uint64_t u) {
-    if (u == 0)
-      return *this = 0;
-    if (u == 1)
-      return *this;
-    if (*this == 1)
-      return *this = u;
-
-    uint64_t k = 0;
-    for (size_t i = 0; i < count_; i++) {
-      uint64_t hi;
-      digits_[i] = MulAdd64(digits_[i], u, k, &hi);
-      k = hi;
-    }
-
-    if (k > 0)
-      PushBack(k);
-
-    return *this;
-  }
-
-  BigInteger& operator*=(uint32_t u) {
-    if (u == 0)
-      return *this = 0;
-    if (u == 1)
-      return *this;
-    if (*this == 1)
-      return *this = u;
-
-    uint64_t k = 0;
-    for (size_t i = 0; i < count_; i++) {
-      const uint64_t c = digits_[i] >> 32;
-      const uint64_t d = digits_[i] & 0xFFFFFFFF;
-      const uint64_t uc = u * c;
-      const uint64_t ud = u * d;
-      const uint64_t p0 = ud + k;
-      const uint64_t p1 = uc + (p0 >> 32);
-      digits_[i] = (p0 & 0xFFFFFFFF) | (p1 << 32);
-      k = p1 >> 32;
-    }
-
-    if (k > 0)
-      PushBack(k);
-
-    return *this;
-  }
-
-  BigInteger& operator<<=(size_t shift) {
-    if (IsZero() || shift == 0)
-      return *this;
-
-    size_t offset = shift / kTypeBit;
-    size_t interShift = shift % kTypeBit;
-    RAPIDJSON_ASSERT(count_ + offset <= kCapacity);
-
-    if (interShift == 0) {
-      std::memmove(&digits_[count_ - 1 + offset], &digits_[count_ - 1],
-                   count_ * sizeof(Type));
-      count_ += offset;
-    } else {
-      digits_[count_] = 0;
-      for (size_t i = count_; i > 0; i--)
-        digits_[i + offset] = (digits_[i] << interShift) |
-                              (digits_[i - 1] >> (kTypeBit - interShift));
-      digits_[offset] = digits_[0] << interShift;
-      count_ += offset;
-      if (digits_[count_])
-        count_++;
-    }
-
-    std::memset(digits_, 0, offset * sizeof(Type));
-
-    return *this;
-  }
-
-  bool operator==(const BigInteger& rhs) const {
-    return count_ == rhs.count_ &&
-           std::memcmp(digits_, rhs.digits_, count_ * sizeof(Type)) == 0;
-  }
-
-  bool operator==(const Type rhs) const {
-    return count_ == 1 && digits_[0] == rhs;
-  }
-
-  BigInteger& MultiplyPow5(unsigned exp) {
-    static const uint32_t kPow5[12] = {
-        5,
-        5 * 5,
-        5 * 5 * 5,
-        5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
-        5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5};
-    if (exp == 0)
-      return *this;
-    for (; exp >= 27; exp -= 27)
-      *this *= RAPIDJSON_UINT64_C2(0X6765C793, 0XFA10079D);  // 5^27
-    for (; exp >= 13; exp -= 13)
-      *this *= static_cast<uint32_t>(1220703125u);  // 5^13
-    if (exp > 0)
-      *this *= kPow5[exp - 1];
-    return *this;
-  }
-
-  // Compute absolute difference of this and rhs.
-  // Assume this != rhs
-  bool Difference(const BigInteger& rhs, BigInteger* out) const {
-    int cmp = Compare(rhs);
-    RAPIDJSON_ASSERT(cmp != 0);
-    const BigInteger *a, *b;  // Makes a > b
-    bool ret;
-    if (cmp < 0) {
-      a = &rhs;
-      b = this;
-      ret = true;
-    } else {
-      a = this;
-      b = &rhs;
-      ret = false;
-    }
-
-    Type borrow = 0;
-    for (size_t i = 0; i < a->count_; i++) {
-      Type d = a->digits_[i] - borrow;
-      if (i < b->count_)
-        d -= b->digits_[i];
-      borrow = (d > a->digits_[i]) ? 1 : 0;
-      out->digits_[i] = d;
-      if (d != 0)
-        out->count_ = i + 1;
-    }
-
-    return ret;
-  }
-
-  int Compare(const BigInteger& rhs) const {
-    if (count_ != rhs.count_)
-      return count_ < rhs.count_ ? -1 : 1;
-
-    for (size_t i = count_; i-- > 0;)
-      if (digits_[i] != rhs.digits_[i])
-        return digits_[i] < rhs.digits_[i] ? -1 : 1;
-
-    return 0;
-  }
-
-  size_t GetCount() const { return count_; }
-  Type GetDigit(size_t index) const {
-    RAPIDJSON_ASSERT(index < count_);
-    return digits_[index];
-  }
-  bool IsZero() const { return count_ == 1 && digits_[0] == 0; }
-
- private:
-  void AppendDecimal64(const char* begin, const char* end) {
-    uint64_t u = ParseUint64(begin, end);
-    if (IsZero())
-      *this = u;
-    else {
-      unsigned exp = static_cast<unsigned>(end - begin);
-      (MultiplyPow5(exp) <<= exp) += u;  // *this = *this * 10^exp + u
-    }
-  }
-
-  void PushBack(Type digit) {
-    RAPIDJSON_ASSERT(count_ < kCapacity);
-    digits_[count_++] = digit;
-  }
-
-  static uint64_t ParseUint64(const char* begin, const char* end) {
-    uint64_t r = 0;
-    for (const char* p = begin; p != end; ++p) {
-      RAPIDJSON_ASSERT(*p >= '0' && *p <= '9');
-      r = r * 10u + static_cast<unsigned>(*p - '0');
-    }
-    return r;
-  }
-
-  // Assume a * b + k < 2^128
-  static uint64_t MulAdd64(uint64_t a,
-                           uint64_t b,
-                           uint64_t k,
-                           uint64_t* outHigh) {
-#if defined(_MSC_VER) && defined(_M_AMD64)
-    uint64_t low = _umul128(a, b, outHigh) + k;
-    if (low < k)
-      (*outHigh)++;
-    return low;
-#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && \
-    defined(__x86_64__)
-    __extension__ typedef unsigned __int128 uint128;
-    uint128 p = static_cast<uint128>(a) * static_cast<uint128>(b);
-    p += k;
-    *outHigh = static_cast<uint64_t>(p >> 64);
-    return static_cast<uint64_t>(p);
-#else
-    const uint64_t a0 = a & 0xFFFFFFFF, a1 = a >> 32, b0 = b & 0xFFFFFFFF,
-                   b1 = b >> 32;
-    uint64_t x0 = a0 * b0, x1 = a0 * b1, x2 = a1 * b0, x3 = a1 * b1;
-    x1 += (x0 >> 32);  // can't give carry
-    x1 += x2;
-    if (x1 < x2)
-      x3 += (static_cast<uint64_t>(1) << 32);
-    uint64_t lo = (x1 << 32) + (x0 & 0xFFFFFFFF);
-    uint64_t hi = x3 + (x1 >> 32);
-
-    lo += k;
-    if (lo < k)
-      hi++;
-    *outHigh = hi;
-    return lo;
-#endif
-  }
-
-  static const size_t kBitCount = 3328;  // 64bit * 54 > 10^1000
-  static const size_t kCapacity = kBitCount / sizeof(Type);
-  static const size_t kTypeBit = sizeof(Type) * 8;
-
-  Type digits_[kCapacity];
-  size_t count_;
-};
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_BIGINTEGER_H_
diff --git a/third_party/rapidjson/internal/diyfp.h b/third_party/rapidjson/internal/diyfp.h
deleted file mode 100644
index 1f3d0e16..00000000
--- a/third_party/rapidjson/internal/diyfp.h
+++ /dev/null
@@ -1,307 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-// This is a C++ header-only implementation of Grisu2 algorithm from the
-// publication: Loitsch, Florian. "Printing floating-point numbers quickly and
-// accurately with integers." ACM Sigplan Notices 45.6 (2010): 233-243.
-
-#ifndef RAPIDJSON_DIYFP_H_
-#define RAPIDJSON_DIYFP_H_
-
-#include "rapidjson/rapidjson.h"
-
-#if defined(_MSC_VER) && defined(_M_AMD64)
-#include <intrin.h>
-#pragma intrinsic(_BitScanReverse64)
-#pragma intrinsic(_umul128)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-struct DiyFp {
-  DiyFp() : f(), e() {}
-
-  DiyFp(uint64_t fp, int exp) : f(fp), e(exp) {}
-
-  explicit DiyFp(double d) {
-    union {
-      double d;
-      uint64_t u64;
-    } u = {d};
-
-    int biased_e =
-        static_cast<int>((u.u64 & kDpExponentMask) >> kDpSignificandSize);
-    uint64_t significand = (u.u64 & kDpSignificandMask);
-    if (biased_e != 0) {
-      f = significand + kDpHiddenBit;
-      e = biased_e - kDpExponentBias;
-    } else {
-      f = significand;
-      e = kDpMinExponent + 1;
-    }
-  }
-
-  DiyFp operator-(const DiyFp& rhs) const { return DiyFp(f - rhs.f, e); }
-
-  DiyFp operator*(const DiyFp& rhs) const {
-#if defined(_MSC_VER) && defined(_M_AMD64)
-    uint64_t h;
-    uint64_t l = _umul128(f, rhs.f, &h);
-    if (l & (uint64_t(1) << 63))  // rounding
-      h++;
-    return DiyFp(h, e + rhs.e + 64);
-#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && \
-    defined(__x86_64__)
-    __extension__ typedef unsigned __int128 uint128;
-    uint128 p = static_cast<uint128>(f) * static_cast<uint128>(rhs.f);
-    uint64_t h = static_cast<uint64_t>(p >> 64);
-    uint64_t l = static_cast<uint64_t>(p);
-    if (l & (uint64_t(1) << 63))  // rounding
-      h++;
-    return DiyFp(h, e + rhs.e + 64);
-#else
-    const uint64_t M32 = 0xFFFFFFFF;
-    const uint64_t a = f >> 32;
-    const uint64_t b = f & M32;
-    const uint64_t c = rhs.f >> 32;
-    const uint64_t d = rhs.f & M32;
-    const uint64_t ac = a * c;
-    const uint64_t bc = b * c;
-    const uint64_t ad = a * d;
-    const uint64_t bd = b * d;
-    uint64_t tmp = (bd >> 32) + (ad & M32) + (bc & M32);
-    tmp += 1U << 31;  /// mult_round
-    return DiyFp(ac + (ad >> 32) + (bc >> 32) + (tmp >> 32), e + rhs.e + 64);
-#endif
-  }
-
-  DiyFp Normalize() const {
-#if defined(_MSC_VER) && defined(_M_AMD64)
-    unsigned long index;
-    _BitScanReverse64(&index, f);
-    return DiyFp(f << (63 - index), e - (63 - index));
-#elif defined(__GNUC__) && __GNUC__ >= 4
-    int s = __builtin_clzll(f);
-    return DiyFp(f << s, e - s);
-#else
-    DiyFp res = *this;
-    while (!(res.f & (static_cast<uint64_t>(1) << 63))) {
-      res.f <<= 1;
-      res.e--;
-    }
-    return res;
-#endif
-  }
-
-  DiyFp NormalizeBoundary() const {
-    DiyFp res = *this;
-    while (!(res.f & (kDpHiddenBit << 1))) {
-      res.f <<= 1;
-      res.e--;
-    }
-    res.f <<= (kDiySignificandSize - kDpSignificandSize - 2);
-    res.e = res.e - (kDiySignificandSize - kDpSignificandSize - 2);
-    return res;
-  }
-
-  void NormalizedBoundaries(DiyFp* minus, DiyFp* plus) const {
-    DiyFp pl = DiyFp((f << 1) + 1, e - 1).NormalizeBoundary();
-    DiyFp mi = (f == kDpHiddenBit) ? DiyFp((f << 2) - 1, e - 2)
-                                   : DiyFp((f << 1) - 1, e - 1);
-    mi.f <<= mi.e - pl.e;
-    mi.e = pl.e;
-    *plus = pl;
-    *minus = mi;
-  }
-
-  double ToDouble() const {
-    union {
-      double d;
-      uint64_t u64;
-    } u;
-    const uint64_t be = (e == kDpDenormalExponent && (f & kDpHiddenBit) == 0)
-                            ? 0
-                            : static_cast<uint64_t>(e + kDpExponentBias);
-    u.u64 = (f & kDpSignificandMask) | (be << kDpSignificandSize);
-    return u.d;
-  }
-
-  static const int kDiySignificandSize = 64;
-  static const int kDpSignificandSize = 52;
-  static const int kDpExponentBias = 0x3FF + kDpSignificandSize;
-  static const int kDpMaxExponent = 0x7FF - kDpExponentBias;
-  static const int kDpMinExponent = -kDpExponentBias;
-  static const int kDpDenormalExponent = -kDpExponentBias + 1;
-  static const uint64_t kDpExponentMask =
-      RAPIDJSON_UINT64_C2(0x7FF00000, 0x00000000);
-  static const uint64_t kDpSignificandMask =
-      RAPIDJSON_UINT64_C2(0x000FFFFF, 0xFFFFFFFF);
-  static const uint64_t kDpHiddenBit =
-      RAPIDJSON_UINT64_C2(0x00100000, 0x00000000);
-
-  uint64_t f;
-  int e;
-};
-
-inline DiyFp GetCachedPowerByIndex(size_t index) {
-  // 10^-348, 10^-340, ..., 10^340
-  static const uint64_t kCachedPowers_F[] = {
-      RAPIDJSON_UINT64_C2(0xfa8fd5a0, 0x081c0288),
-      RAPIDJSON_UINT64_C2(0xbaaee17f, 0xa23ebf76),
-      RAPIDJSON_UINT64_C2(0x8b16fb20, 0x3055ac76),
-      RAPIDJSON_UINT64_C2(0xcf42894a, 0x5dce35ea),
-      RAPIDJSON_UINT64_C2(0x9a6bb0aa, 0x55653b2d),
-      RAPIDJSON_UINT64_C2(0xe61acf03, 0x3d1a45df),
-      RAPIDJSON_UINT64_C2(0xab70fe17, 0xc79ac6ca),
-      RAPIDJSON_UINT64_C2(0xff77b1fc, 0xbebcdc4f),
-      RAPIDJSON_UINT64_C2(0xbe5691ef, 0x416bd60c),
-      RAPIDJSON_UINT64_C2(0x8dd01fad, 0x907ffc3c),
-      RAPIDJSON_UINT64_C2(0xd3515c28, 0x31559a83),
-      RAPIDJSON_UINT64_C2(0x9d71ac8f, 0xada6c9b5),
-      RAPIDJSON_UINT64_C2(0xea9c2277, 0x23ee8bcb),
-      RAPIDJSON_UINT64_C2(0xaecc4991, 0x4078536d),
-      RAPIDJSON_UINT64_C2(0x823c1279, 0x5db6ce57),
-      RAPIDJSON_UINT64_C2(0xc2109436, 0x4dfb5637),
-      RAPIDJSON_UINT64_C2(0x9096ea6f, 0x3848984f),
-      RAPIDJSON_UINT64_C2(0xd77485cb, 0x25823ac7),
-      RAPIDJSON_UINT64_C2(0xa086cfcd, 0x97bf97f4),
-      RAPIDJSON_UINT64_C2(0xef340a98, 0x172aace5),
-      RAPIDJSON_UINT64_C2(0xb23867fb, 0x2a35b28e),
-      RAPIDJSON_UINT64_C2(0x84c8d4df, 0xd2c63f3b),
-      RAPIDJSON_UINT64_C2(0xc5dd4427, 0x1ad3cdba),
-      RAPIDJSON_UINT64_C2(0x936b9fce, 0xbb25c996),
-      RAPIDJSON_UINT64_C2(0xdbac6c24, 0x7d62a584),
-      RAPIDJSON_UINT64_C2(0xa3ab6658, 0x0d5fdaf6),
-      RAPIDJSON_UINT64_C2(0xf3e2f893, 0xdec3f126),
-      RAPIDJSON_UINT64_C2(0xb5b5ada8, 0xaaff80b8),
-      RAPIDJSON_UINT64_C2(0x87625f05, 0x6c7c4a8b),
-      RAPIDJSON_UINT64_C2(0xc9bcff60, 0x34c13053),
-      RAPIDJSON_UINT64_C2(0x964e858c, 0x91ba2655),
-      RAPIDJSON_UINT64_C2(0xdff97724, 0x70297ebd),
-      RAPIDJSON_UINT64_C2(0xa6dfbd9f, 0xb8e5b88f),
-      RAPIDJSON_UINT64_C2(0xf8a95fcf, 0x88747d94),
-      RAPIDJSON_UINT64_C2(0xb9447093, 0x8fa89bcf),
-      RAPIDJSON_UINT64_C2(0x8a08f0f8, 0xbf0f156b),
-      RAPIDJSON_UINT64_C2(0xcdb02555, 0x653131b6),
-      RAPIDJSON_UINT64_C2(0x993fe2c6, 0xd07b7fac),
-      RAPIDJSON_UINT64_C2(0xe45c10c4, 0x2a2b3b06),
-      RAPIDJSON_UINT64_C2(0xaa242499, 0x697392d3),
-      RAPIDJSON_UINT64_C2(0xfd87b5f2, 0x8300ca0e),
-      RAPIDJSON_UINT64_C2(0xbce50864, 0x92111aeb),
-      RAPIDJSON_UINT64_C2(0x8cbccc09, 0x6f5088cc),
-      RAPIDJSON_UINT64_C2(0xd1b71758, 0xe219652c),
-      RAPIDJSON_UINT64_C2(0x9c400000, 0x00000000),
-      RAPIDJSON_UINT64_C2(0xe8d4a510, 0x00000000),
-      RAPIDJSON_UINT64_C2(0xad78ebc5, 0xac620000),
-      RAPIDJSON_UINT64_C2(0x813f3978, 0xf8940984),
-      RAPIDJSON_UINT64_C2(0xc097ce7b, 0xc90715b3),
-      RAPIDJSON_UINT64_C2(0x8f7e32ce, 0x7bea5c70),
-      RAPIDJSON_UINT64_C2(0xd5d238a4, 0xabe98068),
-      RAPIDJSON_UINT64_C2(0x9f4f2726, 0x179a2245),
-      RAPIDJSON_UINT64_C2(0xed63a231, 0xd4c4fb27),
-      RAPIDJSON_UINT64_C2(0xb0de6538, 0x8cc8ada8),
-      RAPIDJSON_UINT64_C2(0x83c7088e, 0x1aab65db),
-      RAPIDJSON_UINT64_C2(0xc45d1df9, 0x42711d9a),
-      RAPIDJSON_UINT64_C2(0x924d692c, 0xa61be758),
-      RAPIDJSON_UINT64_C2(0xda01ee64, 0x1a708dea),
-      RAPIDJSON_UINT64_C2(0xa26da399, 0x9aef774a),
-      RAPIDJSON_UINT64_C2(0xf209787b, 0xb47d6b85),
-      RAPIDJSON_UINT64_C2(0xb454e4a1, 0x79dd1877),
-      RAPIDJSON_UINT64_C2(0x865b8692, 0x5b9bc5c2),
-      RAPIDJSON_UINT64_C2(0xc83553c5, 0xc8965d3d),
-      RAPIDJSON_UINT64_C2(0x952ab45c, 0xfa97a0b3),
-      RAPIDJSON_UINT64_C2(0xde469fbd, 0x99a05fe3),
-      RAPIDJSON_UINT64_C2(0xa59bc234, 0xdb398c25),
-      RAPIDJSON_UINT64_C2(0xf6c69a72, 0xa3989f5c),
-      RAPIDJSON_UINT64_C2(0xb7dcbf53, 0x54e9bece),
-      RAPIDJSON_UINT64_C2(0x88fcf317, 0xf22241e2),
-      RAPIDJSON_UINT64_C2(0xcc20ce9b, 0xd35c78a5),
-      RAPIDJSON_UINT64_C2(0x98165af3, 0x7b2153df),
-      RAPIDJSON_UINT64_C2(0xe2a0b5dc, 0x971f303a),
-      RAPIDJSON_UINT64_C2(0xa8d9d153, 0x5ce3b396),
-      RAPIDJSON_UINT64_C2(0xfb9b7cd9, 0xa4a7443c),
-      RAPIDJSON_UINT64_C2(0xbb764c4c, 0xa7a44410),
-      RAPIDJSON_UINT64_C2(0x8bab8eef, 0xb6409c1a),
-      RAPIDJSON_UINT64_C2(0xd01fef10, 0xa657842c),
-      RAPIDJSON_UINT64_C2(0x9b10a4e5, 0xe9913129),
-      RAPIDJSON_UINT64_C2(0xe7109bfb, 0xa19c0c9d),
-      RAPIDJSON_UINT64_C2(0xac2820d9, 0x623bf429),
-      RAPIDJSON_UINT64_C2(0x80444b5e, 0x7aa7cf85),
-      RAPIDJSON_UINT64_C2(0xbf21e440, 0x03acdd2d),
-      RAPIDJSON_UINT64_C2(0x8e679c2f, 0x5e44ff8f),
-      RAPIDJSON_UINT64_C2(0xd433179d, 0x9c8cb841),
-      RAPIDJSON_UINT64_C2(0x9e19db92, 0xb4e31ba9),
-      RAPIDJSON_UINT64_C2(0xeb96bf6e, 0xbadf77d9),
-      RAPIDJSON_UINT64_C2(0xaf87023b, 0x9bf0ee6b)};
-  static const int16_t kCachedPowers_E[] = {
-      -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954,
-      -927,  -901,  -874,  -847,  -821,  -794,  -768,  -741,  -715,  -688, -661,
-      -635,  -608,  -582,  -555,  -529,  -502,  -475,  -449,  -422,  -396, -369,
-      -343,  -316,  -289,  -263,  -236,  -210,  -183,  -157,  -130,  -103, -77,
-      -50,   -24,   3,     30,    56,    83,    109,   136,   162,   189,  216,
-      242,   269,   295,   322,   348,   375,   402,   428,   455,   481,  508,
-      534,   561,   588,   614,   641,   667,   694,   720,   747,   774,  800,
-      827,   853,   880,   907,   933,   960,   986,   1013,  1039,  1066};
-  return DiyFp(kCachedPowers_F[index], kCachedPowers_E[index]);
-}
-
-inline DiyFp GetCachedPower(int e, int* K) {
-  // int k = static_cast<int>(ceil((-61 - e) * 0.30102999566398114)) + 374;
-  double dk = (-61 - e) * 0.30102999566398114 +
-              347;  // dk must be positive, so can do ceiling in positive
-  int k = static_cast<int>(dk);
-  if (dk - k > 0.0)
-    k++;
-
-  unsigned index = static_cast<unsigned>((k >> 3) + 1);
-  *K = -(-348 + static_cast<int>(
-                    index << 3));  // decimal exponent no need lookup table
-
-  return GetCachedPowerByIndex(index);
-}
-
-inline DiyFp GetCachedPower10(int exp, int* outExp) {
-  unsigned index = (static_cast<unsigned>(exp) + 348u) / 8u;
-  *outExp = -348 + static_cast<int>(index) * 8;
-  return GetCachedPowerByIndex(index);
-}
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_DIYFP_H_
diff --git a/third_party/rapidjson/internal/dtoa.h b/third_party/rapidjson/internal/dtoa.h
deleted file mode 100644
index 8d6350e6..00000000
--- a/third_party/rapidjson/internal/dtoa.h
+++ /dev/null
@@ -1,245 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-// This is a C++ header-only implementation of Grisu2 algorithm from the publication:
-// Loitsch, Florian. "Printing floating-point numbers quickly and accurately with
-// integers." ACM Sigplan Notices 45.6 (2010): 233-243.
-
-#ifndef RAPIDJSON_DTOA_
-#define RAPIDJSON_DTOA_
-
-#include "itoa.h" // GetDigitsLut()
-#include "diyfp.h"
-#include "ieee754.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-RAPIDJSON_DIAG_OFF(array-bounds) // some gcc versions generate wrong warnings https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59124
-#endif
-
-inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t wp_w) {
-    while (rest < wp_w && delta - rest >= ten_kappa &&
-           (rest + ten_kappa < wp_w ||  /// closer
-            wp_w - rest > rest + ten_kappa - wp_w)) {
-        buffer[len - 1]--;
-        rest += ten_kappa;
-    }
-}
-
-inline unsigned CountDecimalDigit32(uint32_t n) {
-    // Simple pure C++ implementation was faster than __builtin_clz version in this situation.
-    if (n < 10) return 1;
-    if (n < 100) return 2;
-    if (n < 1000) return 3;
-    if (n < 10000) return 4;
-    if (n < 100000) return 5;
-    if (n < 1000000) return 6;
-    if (n < 10000000) return 7;
-    if (n < 100000000) return 8;
-    // Will not reach 10 digits in DigitGen()
-    //if (n < 1000000000) return 9;
-    //return 10;
-    return 9;
-}
-
-inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buffer, int* len, int* K) {
-    static const uint32_t kPow10[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000 };
-    const DiyFp one(uint64_t(1) << -Mp.e, Mp.e);
-    const DiyFp wp_w = Mp - W;
-    uint32_t p1 = static_cast<uint32_t>(Mp.f >> -one.e);
-    uint64_t p2 = Mp.f & (one.f - 1);
-    unsigned kappa = CountDecimalDigit32(p1); // kappa in [0, 9]
-    *len = 0;
-
-    while (kappa > 0) {
-        uint32_t d = 0;
-        switch (kappa) {
-            case  9: d = p1 /  100000000; p1 %=  100000000; break;
-            case  8: d = p1 /   10000000; p1 %=   10000000; break;
-            case  7: d = p1 /    1000000; p1 %=    1000000; break;
-            case  6: d = p1 /     100000; p1 %=     100000; break;
-            case  5: d = p1 /      10000; p1 %=      10000; break;
-            case  4: d = p1 /       1000; p1 %=       1000; break;
-            case  3: d = p1 /        100; p1 %=        100; break;
-            case  2: d = p1 /         10; p1 %=         10; break;
-            case  1: d = p1;              p1 =           0; break;
-            default:;
-        }
-        if (d || *len)
-            buffer[(*len)++] = static_cast<char>('0' + static_cast<char>(d));
-        kappa--;
-        uint64_t tmp = (static_cast<uint64_t>(p1) << -one.e) + p2;
-        if (tmp <= delta) {
-            *K += kappa;
-            GrisuRound(buffer, *len, delta, tmp, static_cast<uint64_t>(kPow10[kappa]) << -one.e, wp_w.f);
-            return;
-        }
-    }
-
-    // kappa = 0
-    for (;;) {
-        p2 *= 10;
-        delta *= 10;
-        char d = static_cast<char>(p2 >> -one.e);
-        if (d || *len)
-            buffer[(*len)++] = static_cast<char>('0' + d);
-        p2 &= one.f - 1;
-        kappa--;
-        if (p2 < delta) {
-            *K += kappa;
-            int index = -static_cast<int>(kappa);
-            GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[-static_cast<int>(kappa)] : 0));
-            return;
-        }
-    }
-}
-
-inline void Grisu2(double value, char* buffer, int* length, int* K) {
-    const DiyFp v(value);
-    DiyFp w_m, w_p;
-    v.NormalizedBoundaries(&w_m, &w_p);
-
-    const DiyFp c_mk = GetCachedPower(w_p.e, K);
-    const DiyFp W = v.Normalize() * c_mk;
-    DiyFp Wp = w_p * c_mk;
-    DiyFp Wm = w_m * c_mk;
-    Wm.f++;
-    Wp.f--;
-    DigitGen(W, Wp, Wp.f - Wm.f, buffer, length, K);
-}
-
-inline char* WriteExponent(int K, char* buffer) {
-    if (K < 0) {
-        *buffer++ = '-';
-        K = -K;
-    }
-
-    if (K >= 100) {
-        *buffer++ = static_cast<char>('0' + static_cast<char>(K / 100));
-        K %= 100;
-        const char* d = GetDigitsLut() + K * 2;
-        *buffer++ = d[0];
-        *buffer++ = d[1];
-    }
-    else if (K >= 10) {
-        const char* d = GetDigitsLut() + K * 2;
-        *buffer++ = d[0];
-        *buffer++ = d[1];
-    }
-    else
-        *buffer++ = static_cast<char>('0' + static_cast<char>(K));
-
-    return buffer;
-}
-
-inline char* Prettify(char* buffer, int length, int k, int maxDecimalPlaces) {
-    const int kk = length + k;  // 10^(kk-1) <= v < 10^kk
-
-    if (0 <= k && kk <= 21) {
-        // 1234e7 -> 12340000000
-        for (int i = length; i < kk; i++)
-            buffer[i] = '0';
-        buffer[kk] = '.';
-        buffer[kk + 1] = '0';
-        return &buffer[kk + 2];
-    }
-    else if (0 < kk && kk <= 21) {
-        // 1234e-2 -> 12.34
-        std::memmove(&buffer[kk + 1], &buffer[kk], static_cast<size_t>(length - kk));
-        buffer[kk] = '.';
-        if (0 > k + maxDecimalPlaces) {
-            // When maxDecimalPlaces = 2, 1.2345 -> 1.23, 1.102 -> 1.1
-            // Remove extra trailing zeros (at least one) after truncation.
-            for (int i = kk + maxDecimalPlaces; i > kk + 1; i--)
-                if (buffer[i] != '0')
-                    return &buffer[i + 1];
-            return &buffer[kk + 2]; // Reserve one zero
-        }
-        else
-            return &buffer[length + 1];
-    }
-    else if (-6 < kk && kk <= 0) {
-        // 1234e-6 -> 0.001234
-        const int offset = 2 - kk;
-        std::memmove(&buffer[offset], &buffer[0], static_cast<size_t>(length));
-        buffer[0] = '0';
-        buffer[1] = '.';
-        for (int i = 2; i < offset; i++)
-            buffer[i] = '0';
-        if (length - kk > maxDecimalPlaces) {
-            // When maxDecimalPlaces = 2, 0.123 -> 0.12, 0.102 -> 0.1
-            // Remove extra trailing zeros (at least one) after truncation.
-            for (int i = maxDecimalPlaces + 1; i > 2; i--)
-                if (buffer[i] != '0')
-                    return &buffer[i + 1];
-            return &buffer[3]; // Reserve one zero
-        }
-        else
-            return &buffer[length + offset];
-    }
-    else if (kk < -maxDecimalPlaces) {
-        // Truncate to zero
-        buffer[0] = '0';
-        buffer[1] = '.';
-        buffer[2] = '0';
-        return &buffer[3];
-    }
-    else if (length == 1) {
-        // 1e30
-        buffer[1] = 'e';
-        return WriteExponent(kk - 1, &buffer[2]);
-    }
-    else {
-        // 1234e30 -> 1.234e33
-        std::memmove(&buffer[2], &buffer[1], static_cast<size_t>(length - 1));
-        buffer[1] = '.';
-        buffer[length + 1] = 'e';
-        return WriteExponent(kk - 1, &buffer[0 + length + 2]);
-    }
-}
-
-inline char* dtoa(double value, char* buffer, int maxDecimalPlaces = 324) {
-    RAPIDJSON_ASSERT(maxDecimalPlaces >= 1);
-    Double d(value);
-    if (d.IsZero()) {
-        if (d.Sign())
-            *buffer++ = '-';     // -0.0, Issue #289
-        buffer[0] = '0';
-        buffer[1] = '.';
-        buffer[2] = '0';
-        return &buffer[3];
-    }
-    else {
-        if (value < 0) {
-            *buffer++ = '-';
-            value = -value;
-        }
-        int length, K;
-        Grisu2(value, buffer, &length, &K);
-        return Prettify(buffer, length, K, maxDecimalPlaces);
-    }
-}
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-} // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_DTOA_
diff --git a/third_party/rapidjson/internal/ieee754.h b/third_party/rapidjson/internal/ieee754.h
deleted file mode 100644
index 9a84d645..00000000
--- a/third_party/rapidjson/internal/ieee754.h
+++ /dev/null
@@ -1,100 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_IEEE754_
-#define RAPIDJSON_IEEE754_
-
-#include "rapidjson/rapidjson.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-class Double {
- public:
-  Double() {}
-  Double(double d) : d_(d) {}
-  Double(uint64_t u) : u_(u) {}
-
-  double Value() const { return d_; }
-  uint64_t Uint64Value() const { return u_; }
-
-  double NextPositiveDouble() const {
-    RAPIDJSON_ASSERT(!Sign());
-    return Double(u_ + 1).Value();
-  }
-
-  bool Sign() const { return (u_ & kSignMask) != 0; }
-  uint64_t Significand() const { return u_ & kSignificandMask; }
-  int Exponent() const {
-    return static_cast<int>(((u_ & kExponentMask) >> kSignificandSize) -
-                            kExponentBias);
-  }
-
-  bool IsNan() const {
-    return (u_ & kExponentMask) == kExponentMask && Significand() != 0;
-  }
-  bool IsInf() const {
-    return (u_ & kExponentMask) == kExponentMask && Significand() == 0;
-  }
-  bool IsNanOrInf() const { return (u_ & kExponentMask) == kExponentMask; }
-  bool IsNormal() const {
-    return (u_ & kExponentMask) != 0 || Significand() == 0;
-  }
-  bool IsZero() const { return (u_ & (kExponentMask | kSignificandMask)) == 0; }
-
-  uint64_t IntegerSignificand() const {
-    return IsNormal() ? Significand() | kHiddenBit : Significand();
-  }
-  int IntegerExponent() const {
-    return (IsNormal() ? Exponent() : kDenormalExponent) - kSignificandSize;
-  }
-  uint64_t ToBias() const {
-    return (u_ & kSignMask) ? ~u_ + 1 : u_ | kSignMask;
-  }
-
-  static unsigned EffectiveSignificandSize(int order) {
-    if (order >= -1021)
-      return 53;
-    else if (order <= -1074)
-      return 0;
-    else
-      return static_cast<unsigned>(order) + 1074;
-  }
-
- private:
-  static const int kSignificandSize = 52;
-  static const int kExponentBias = 0x3FF;
-  static const int kDenormalExponent = 1 - kExponentBias;
-  static const uint64_t kSignMask = RAPIDJSON_UINT64_C2(0x80000000, 0x00000000);
-  static const uint64_t kExponentMask =
-      RAPIDJSON_UINT64_C2(0x7FF00000, 0x00000000);
-  static const uint64_t kSignificandMask =
-      RAPIDJSON_UINT64_C2(0x000FFFFF, 0xFFFFFFFF);
-  static const uint64_t kHiddenBit =
-      RAPIDJSON_UINT64_C2(0x00100000, 0x00000000);
-
-  union {
-    double d_;
-    uint64_t u_;
-  };
-};
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_IEEE754_
diff --git a/third_party/rapidjson/internal/itoa.h b/third_party/rapidjson/internal/itoa.h
deleted file mode 100644
index 630be875..00000000
--- a/third_party/rapidjson/internal/itoa.h
+++ /dev/null
@@ -1,303 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_ITOA_
-#define RAPIDJSON_ITOA_
-
-#include "rapidjson/rapidjson.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-inline const char* GetDigitsLut() {
-  static const char cDigitsLut[200] = {
-      '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0',
-      '7', '0', '8', '0', '9', '1', '0', '1', '1', '1', '2', '1', '3', '1', '4',
-      '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', '2', '0', '2', '1', '2',
-      '2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9',
-      '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3',
-      '7', '3', '8', '3', '9', '4', '0', '4', '1', '4', '2', '4', '3', '4', '4',
-      '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', '5', '0', '5', '1', '5',
-      '2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9',
-      '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6',
-      '7', '6', '8', '6', '9', '7', '0', '7', '1', '7', '2', '7', '3', '7', '4',
-      '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', '8', '0', '8', '1', '8',
-      '2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9',
-      '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9', '5', '9', '6', '9',
-      '7', '9', '8', '9', '9'};
-  return cDigitsLut;
-}
-
-inline char* u32toa(uint32_t value, char* buffer) {
-  const char* cDigitsLut = GetDigitsLut();
-
-  if (value < 10000) {
-    const uint32_t d1 = (value / 100) << 1;
-    const uint32_t d2 = (value % 100) << 1;
-
-    if (value >= 1000)
-      *buffer++ = cDigitsLut[d1];
-    if (value >= 100)
-      *buffer++ = cDigitsLut[d1 + 1];
-    if (value >= 10)
-      *buffer++ = cDigitsLut[d2];
-    *buffer++ = cDigitsLut[d2 + 1];
-  } else if (value < 100000000) {
-    // value = bbbbcccc
-    const uint32_t b = value / 10000;
-    const uint32_t c = value % 10000;
-
-    const uint32_t d1 = (b / 100) << 1;
-    const uint32_t d2 = (b % 100) << 1;
-
-    const uint32_t d3 = (c / 100) << 1;
-    const uint32_t d4 = (c % 100) << 1;
-
-    if (value >= 10000000)
-      *buffer++ = cDigitsLut[d1];
-    if (value >= 1000000)
-      *buffer++ = cDigitsLut[d1 + 1];
-    if (value >= 100000)
-      *buffer++ = cDigitsLut[d2];
-    *buffer++ = cDigitsLut[d2 + 1];
-
-    *buffer++ = cDigitsLut[d3];
-    *buffer++ = cDigitsLut[d3 + 1];
-    *buffer++ = cDigitsLut[d4];
-    *buffer++ = cDigitsLut[d4 + 1];
-  } else {
-    // value = aabbbbcccc in decimal
-
-    const uint32_t a = value / 100000000;  // 1 to 42
-    value %= 100000000;
-
-    if (a >= 10) {
-      const unsigned i = a << 1;
-      *buffer++ = cDigitsLut[i];
-      *buffer++ = cDigitsLut[i + 1];
-    } else
-      *buffer++ = static_cast<char>('0' + static_cast<char>(a));
-
-    const uint32_t b = value / 10000;  // 0 to 9999
-    const uint32_t c = value % 10000;  // 0 to 9999
-
-    const uint32_t d1 = (b / 100) << 1;
-    const uint32_t d2 = (b % 100) << 1;
-
-    const uint32_t d3 = (c / 100) << 1;
-    const uint32_t d4 = (c % 100) << 1;
-
-    *buffer++ = cDigitsLut[d1];
-    *buffer++ = cDigitsLut[d1 + 1];
-    *buffer++ = cDigitsLut[d2];
-    *buffer++ = cDigitsLut[d2 + 1];
-    *buffer++ = cDigitsLut[d3];
-    *buffer++ = cDigitsLut[d3 + 1];
-    *buffer++ = cDigitsLut[d4];
-    *buffer++ = cDigitsLut[d4 + 1];
-  }
-  return buffer;
-}
-
-inline char* i32toa(int32_t value, char* buffer) {
-  uint32_t u = static_cast<uint32_t>(value);
-  if (value < 0) {
-    *buffer++ = '-';
-    u = ~u + 1;
-  }
-
-  return u32toa(u, buffer);
-}
-
-inline char* u64toa(uint64_t value, char* buffer) {
-  const char* cDigitsLut = GetDigitsLut();
-  const uint64_t kTen8 = 100000000;
-  const uint64_t kTen9 = kTen8 * 10;
-  const uint64_t kTen10 = kTen8 * 100;
-  const uint64_t kTen11 = kTen8 * 1000;
-  const uint64_t kTen12 = kTen8 * 10000;
-  const uint64_t kTen13 = kTen8 * 100000;
-  const uint64_t kTen14 = kTen8 * 1000000;
-  const uint64_t kTen15 = kTen8 * 10000000;
-  const uint64_t kTen16 = kTen8 * kTen8;
-
-  if (value < kTen8) {
-    uint32_t v = static_cast<uint32_t>(value);
-    if (v < 10000) {
-      const uint32_t d1 = (v / 100) << 1;
-      const uint32_t d2 = (v % 100) << 1;
-
-      if (v >= 1000)
-        *buffer++ = cDigitsLut[d1];
-      if (v >= 100)
-        *buffer++ = cDigitsLut[d1 + 1];
-      if (v >= 10)
-        *buffer++ = cDigitsLut[d2];
-      *buffer++ = cDigitsLut[d2 + 1];
-    } else {
-      // value = bbbbcccc
-      const uint32_t b = v / 10000;
-      const uint32_t c = v % 10000;
-
-      const uint32_t d1 = (b / 100) << 1;
-      const uint32_t d2 = (b % 100) << 1;
-
-      const uint32_t d3 = (c / 100) << 1;
-      const uint32_t d4 = (c % 100) << 1;
-
-      if (value >= 10000000)
-        *buffer++ = cDigitsLut[d1];
-      if (value >= 1000000)
-        *buffer++ = cDigitsLut[d1 + 1];
-      if (value >= 100000)
-        *buffer++ = cDigitsLut[d2];
-      *buffer++ = cDigitsLut[d2 + 1];
-
-      *buffer++ = cDigitsLut[d3];
-      *buffer++ = cDigitsLut[d3 + 1];
-      *buffer++ = cDigitsLut[d4];
-      *buffer++ = cDigitsLut[d4 + 1];
-    }
-  } else if (value < kTen16) {
-    const uint32_t v0 = static_cast<uint32_t>(value / kTen8);
-    const uint32_t v1 = static_cast<uint32_t>(value % kTen8);
-
-    const uint32_t b0 = v0 / 10000;
-    const uint32_t c0 = v0 % 10000;
-
-    const uint32_t d1 = (b0 / 100) << 1;
-    const uint32_t d2 = (b0 % 100) << 1;
-
-    const uint32_t d3 = (c0 / 100) << 1;
-    const uint32_t d4 = (c0 % 100) << 1;
-
-    const uint32_t b1 = v1 / 10000;
-    const uint32_t c1 = v1 % 10000;
-
-    const uint32_t d5 = (b1 / 100) << 1;
-    const uint32_t d6 = (b1 % 100) << 1;
-
-    const uint32_t d7 = (c1 / 100) << 1;
-    const uint32_t d8 = (c1 % 100) << 1;
-
-    if (value >= kTen15)
-      *buffer++ = cDigitsLut[d1];
-    if (value >= kTen14)
-      *buffer++ = cDigitsLut[d1 + 1];
-    if (value >= kTen13)
-      *buffer++ = cDigitsLut[d2];
-    if (value >= kTen12)
-      *buffer++ = cDigitsLut[d2 + 1];
-    if (value >= kTen11)
-      *buffer++ = cDigitsLut[d3];
-    if (value >= kTen10)
-      *buffer++ = cDigitsLut[d3 + 1];
-    if (value >= kTen9)
-      *buffer++ = cDigitsLut[d4];
-    if (value >= kTen8)
-      *buffer++ = cDigitsLut[d4 + 1];
-
-    *buffer++ = cDigitsLut[d5];
-    *buffer++ = cDigitsLut[d5 + 1];
-    *buffer++ = cDigitsLut[d6];
-    *buffer++ = cDigitsLut[d6 + 1];
-    *buffer++ = cDigitsLut[d7];
-    *buffer++ = cDigitsLut[d7 + 1];
-    *buffer++ = cDigitsLut[d8];
-    *buffer++ = cDigitsLut[d8 + 1];
-  } else {
-    const uint32_t a = static_cast<uint32_t>(value / kTen16);  // 1 to 1844
-    value %= kTen16;
-
-    if (a < 10)
-      *buffer++ = static_cast<char>('0' + static_cast<char>(a));
-    else if (a < 100) {
-      const uint32_t i = a << 1;
-      *buffer++ = cDigitsLut[i];
-      *buffer++ = cDigitsLut[i + 1];
-    } else if (a < 1000) {
-      *buffer++ = static_cast<char>('0' + static_cast<char>(a / 100));
-
-      const uint32_t i = (a % 100) << 1;
-      *buffer++ = cDigitsLut[i];
-      *buffer++ = cDigitsLut[i + 1];
-    } else {
-      const uint32_t i = (a / 100) << 1;
-      const uint32_t j = (a % 100) << 1;
-      *buffer++ = cDigitsLut[i];
-      *buffer++ = cDigitsLut[i + 1];
-      *buffer++ = cDigitsLut[j];
-      *buffer++ = cDigitsLut[j + 1];
-    }
-
-    const uint32_t v0 = static_cast<uint32_t>(value / kTen8);
-    const uint32_t v1 = static_cast<uint32_t>(value % kTen8);
-
-    const uint32_t b0 = v0 / 10000;
-    const uint32_t c0 = v0 % 10000;
-
-    const uint32_t d1 = (b0 / 100) << 1;
-    const uint32_t d2 = (b0 % 100) << 1;
-
-    const uint32_t d3 = (c0 / 100) << 1;
-    const uint32_t d4 = (c0 % 100) << 1;
-
-    const uint32_t b1 = v1 / 10000;
-    const uint32_t c1 = v1 % 10000;
-
-    const uint32_t d5 = (b1 / 100) << 1;
-    const uint32_t d6 = (b1 % 100) << 1;
-
-    const uint32_t d7 = (c1 / 100) << 1;
-    const uint32_t d8 = (c1 % 100) << 1;
-
-    *buffer++ = cDigitsLut[d1];
-    *buffer++ = cDigitsLut[d1 + 1];
-    *buffer++ = cDigitsLut[d2];
-    *buffer++ = cDigitsLut[d2 + 1];
-    *buffer++ = cDigitsLut[d3];
-    *buffer++ = cDigitsLut[d3 + 1];
-    *buffer++ = cDigitsLut[d4];
-    *buffer++ = cDigitsLut[d4 + 1];
-    *buffer++ = cDigitsLut[d5];
-    *buffer++ = cDigitsLut[d5 + 1];
-    *buffer++ = cDigitsLut[d6];
-    *buffer++ = cDigitsLut[d6 + 1];
-    *buffer++ = cDigitsLut[d7];
-    *buffer++ = cDigitsLut[d7 + 1];
-    *buffer++ = cDigitsLut[d8];
-    *buffer++ = cDigitsLut[d8 + 1];
-  }
-
-  return buffer;
-}
-
-inline char* i64toa(int64_t value, char* buffer) {
-  uint64_t u = static_cast<uint64_t>(value);
-  if (value < 0) {
-    *buffer++ = '-';
-    u = ~u + 1;
-  }
-
-  return u64toa(u, buffer);
-}
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_ITOA_
diff --git a/third_party/rapidjson/internal/meta.h b/third_party/rapidjson/internal/meta.h
deleted file mode 100644
index 0dabfacf..00000000
--- a/third_party/rapidjson/internal/meta.h
+++ /dev/null
@@ -1,238 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_INTERNAL_META_H_
-#define RAPIDJSON_INTERNAL_META_H_
-
-#include "rapidjson/rapidjson.h"
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-#if defined(_MSC_VER)
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(6334)
-#endif
-
-#if RAPIDJSON_HAS_CXX11_TYPETRAITS
-#include <type_traits>
-#endif
-
-//@cond RAPIDJSON_INTERNAL
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-// Helper to wrap/convert arbitrary types to void, useful for arbitrary type
-// matching
-template <typename T>
-struct Void {
-  typedef void Type;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// BoolType, TrueType, FalseType
-//
-template <bool Cond>
-struct BoolType {
-  static const bool Value = Cond;
-  typedef BoolType Type;
-};
-typedef BoolType<true> TrueType;
-typedef BoolType<false> FalseType;
-
-///////////////////////////////////////////////////////////////////////////////
-// SelectIf, BoolExpr, NotExpr, AndExpr, OrExpr
-//
-
-template <bool C>
-struct SelectIfImpl {
-  template <typename T1, typename T2>
-  struct Apply {
-    typedef T1 Type;
-  };
-};
-template <>
-struct SelectIfImpl<false> {
-  template <typename T1, typename T2>
-  struct Apply {
-    typedef T2 Type;
-  };
-};
-template <bool C, typename T1, typename T2>
-struct SelectIfCond : SelectIfImpl<C>::template Apply<T1, T2> {};
-template <typename C, typename T1, typename T2>
-struct SelectIf : SelectIfCond<C::Value, T1, T2> {};
-
-template <bool Cond1, bool Cond2>
-struct AndExprCond : FalseType {};
-template <>
-struct AndExprCond<true, true> : TrueType {};
-template <bool Cond1, bool Cond2>
-struct OrExprCond : TrueType {};
-template <>
-struct OrExprCond<false, false> : FalseType {};
-
-template <typename C>
-struct BoolExpr : SelectIf<C, TrueType, FalseType>::Type {};
-template <typename C>
-struct NotExpr : SelectIf<C, FalseType, TrueType>::Type {};
-template <typename C1, typename C2>
-struct AndExpr : AndExprCond<C1::Value, C2::Value>::Type {};
-template <typename C1, typename C2>
-struct OrExpr : OrExprCond<C1::Value, C2::Value>::Type {};
-
-///////////////////////////////////////////////////////////////////////////////
-// AddConst, MaybeAddConst, RemoveConst
-template <typename T>
-struct AddConst {
-  typedef const T Type;
-};
-template <bool Constify, typename T>
-struct MaybeAddConst : SelectIfCond<Constify, const T, T> {};
-template <typename T>
-struct RemoveConst {
-  typedef T Type;
-};
-template <typename T>
-struct RemoveConst<const T> {
-  typedef T Type;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// IsSame, IsConst, IsMoreConst, IsPointer
-//
-template <typename T, typename U>
-struct IsSame : FalseType {};
-template <typename T>
-struct IsSame<T, T> : TrueType {};
-
-template <typename T>
-struct IsConst : FalseType {};
-template <typename T>
-struct IsConst<const T> : TrueType {};
-
-template <typename CT, typename T>
-struct IsMoreConst
-    : AndExpr<
-          IsSame<typename RemoveConst<CT>::Type, typename RemoveConst<T>::Type>,
-          BoolType<IsConst<CT>::Value >= IsConst<T>::Value> >::Type {};
-
-template <typename T>
-struct IsPointer : FalseType {};
-template <typename T>
-struct IsPointer<T*> : TrueType {};
-
-///////////////////////////////////////////////////////////////////////////////
-// IsBaseOf
-//
-#if RAPIDJSON_HAS_CXX11_TYPETRAITS
-
-template <typename B, typename D>
-struct IsBaseOf : BoolType< ::std::is_base_of<B, D>::value> {};
-
-#else  // simplified version adopted from Boost
-
-template <typename B, typename D>
-struct IsBaseOfImpl {
-  RAPIDJSON_STATIC_ASSERT(sizeof(B) != 0);
-  RAPIDJSON_STATIC_ASSERT(sizeof(D) != 0);
-
-  typedef char (&Yes)[1];
-  typedef char (&No)[2];
-
-  template <typename T>
-  static Yes Check(const D*, T);
-  static No Check(const B*, int);
-
-  struct Host {
-    operator const B*() const;
-    operator const D*();
-  };
-
-  enum { Value = (sizeof(Check(Host(), 0)) == sizeof(Yes)) };
-};
-
-template <typename B, typename D>
-struct IsBaseOf : OrExpr<IsSame<B, D>, BoolExpr<IsBaseOfImpl<B, D> > >::Type {};
-
-#endif  // RAPIDJSON_HAS_CXX11_TYPETRAITS
-
-//////////////////////////////////////////////////////////////////////////
-// EnableIf / DisableIf
-//
-template <bool Condition, typename T = void>
-struct EnableIfCond {
-  typedef T Type;
-};
-template <typename T>
-struct EnableIfCond<false, T> { /* empty */
-};
-
-template <bool Condition, typename T = void>
-struct DisableIfCond {
-  typedef T Type;
-};
-template <typename T>
-struct DisableIfCond<true, T> { /* empty */
-};
-
-template <typename Condition, typename T = void>
-struct EnableIf : EnableIfCond<Condition::Value, T> {};
-
-template <typename Condition, typename T = void>
-struct DisableIf : DisableIfCond<Condition::Value, T> {};
-
-// SFINAE helpers
-struct SfinaeTag {};
-template <typename T>
-struct RemoveSfinaeTag;
-template <typename T>
-struct RemoveSfinaeTag<SfinaeTag& (*)(T)> {
-  typedef T Type;
-};
-
-#define RAPIDJSON_REMOVEFPTR_(type)                          \
-  typename ::RAPIDJSON_NAMESPACE::internal::RemoveSfinaeTag< \
-      ::RAPIDJSON_NAMESPACE::internal::SfinaeTag&(*)type>::Type
-
-#define RAPIDJSON_ENABLEIF(cond)                                            \
-  typename ::RAPIDJSON_NAMESPACE::internal::EnableIf<RAPIDJSON_REMOVEFPTR_( \
-      cond)>::Type* = NULL
-
-#define RAPIDJSON_DISABLEIF(cond)                                            \
-  typename ::RAPIDJSON_NAMESPACE::internal::DisableIf<RAPIDJSON_REMOVEFPTR_( \
-      cond)>::Type* = NULL
-
-#define RAPIDJSON_ENABLEIF_RETURN(cond, returntype)   \
-  typename ::RAPIDJSON_NAMESPACE::internal::EnableIf< \
-      RAPIDJSON_REMOVEFPTR_(cond), RAPIDJSON_REMOVEFPTR_(returntype)>::Type
-
-#define RAPIDJSON_DISABLEIF_RETURN(cond, returntype)   \
-  typename ::RAPIDJSON_NAMESPACE::internal::DisableIf< \
-      RAPIDJSON_REMOVEFPTR_(cond), RAPIDJSON_REMOVEFPTR_(returntype)>::Type
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-//@endcond
-
-#if defined(__GNUC__) || defined(_MSC_VER)
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_INTERNAL_META_H_
diff --git a/third_party/rapidjson/internal/pow10.h b/third_party/rapidjson/internal/pow10.h
deleted file mode 100644
index be06ab7a..00000000
--- a/third_party/rapidjson/internal/pow10.h
+++ /dev/null
@@ -1,77 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_POW10_
-#define RAPIDJSON_POW10_
-
-#include "rapidjson/rapidjson.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-//! Computes integer powers of 10 in double (10.0^n).
-/*! This function uses lookup table for fast and accurate results.
-    \param n non-negative exponent. Must <= 308.
-    \return 10.0^n
-*/
-inline double Pow10(int n) {
-  static const double e[] = {
-      // 1e-0...1e308: 309 * 8 bytes = 2472 bytes
-      1e+0,   1e+1,   1e+2,   1e+3,   1e+4,   1e+5,   1e+6,   1e+7,   1e+8,
-      1e+9,   1e+10,  1e+11,  1e+12,  1e+13,  1e+14,  1e+15,  1e+16,  1e+17,
-      1e+18,  1e+19,  1e+20,  1e+21,  1e+22,  1e+23,  1e+24,  1e+25,  1e+26,
-      1e+27,  1e+28,  1e+29,  1e+30,  1e+31,  1e+32,  1e+33,  1e+34,  1e+35,
-      1e+36,  1e+37,  1e+38,  1e+39,  1e+40,  1e+41,  1e+42,  1e+43,  1e+44,
-      1e+45,  1e+46,  1e+47,  1e+48,  1e+49,  1e+50,  1e+51,  1e+52,  1e+53,
-      1e+54,  1e+55,  1e+56,  1e+57,  1e+58,  1e+59,  1e+60,  1e+61,  1e+62,
-      1e+63,  1e+64,  1e+65,  1e+66,  1e+67,  1e+68,  1e+69,  1e+70,  1e+71,
-      1e+72,  1e+73,  1e+74,  1e+75,  1e+76,  1e+77,  1e+78,  1e+79,  1e+80,
-      1e+81,  1e+82,  1e+83,  1e+84,  1e+85,  1e+86,  1e+87,  1e+88,  1e+89,
-      1e+90,  1e+91,  1e+92,  1e+93,  1e+94,  1e+95,  1e+96,  1e+97,  1e+98,
-      1e+99,  1e+100, 1e+101, 1e+102, 1e+103, 1e+104, 1e+105, 1e+106, 1e+107,
-      1e+108, 1e+109, 1e+110, 1e+111, 1e+112, 1e+113, 1e+114, 1e+115, 1e+116,
-      1e+117, 1e+118, 1e+119, 1e+120, 1e+121, 1e+122, 1e+123, 1e+124, 1e+125,
-      1e+126, 1e+127, 1e+128, 1e+129, 1e+130, 1e+131, 1e+132, 1e+133, 1e+134,
-      1e+135, 1e+136, 1e+137, 1e+138, 1e+139, 1e+140, 1e+141, 1e+142, 1e+143,
-      1e+144, 1e+145, 1e+146, 1e+147, 1e+148, 1e+149, 1e+150, 1e+151, 1e+152,
-      1e+153, 1e+154, 1e+155, 1e+156, 1e+157, 1e+158, 1e+159, 1e+160, 1e+161,
-      1e+162, 1e+163, 1e+164, 1e+165, 1e+166, 1e+167, 1e+168, 1e+169, 1e+170,
-      1e+171, 1e+172, 1e+173, 1e+174, 1e+175, 1e+176, 1e+177, 1e+178, 1e+179,
-      1e+180, 1e+181, 1e+182, 1e+183, 1e+184, 1e+185, 1e+186, 1e+187, 1e+188,
-      1e+189, 1e+190, 1e+191, 1e+192, 1e+193, 1e+194, 1e+195, 1e+196, 1e+197,
-      1e+198, 1e+199, 1e+200, 1e+201, 1e+202, 1e+203, 1e+204, 1e+205, 1e+206,
-      1e+207, 1e+208, 1e+209, 1e+210, 1e+211, 1e+212, 1e+213, 1e+214, 1e+215,
-      1e+216, 1e+217, 1e+218, 1e+219, 1e+220, 1e+221, 1e+222, 1e+223, 1e+224,
-      1e+225, 1e+226, 1e+227, 1e+228, 1e+229, 1e+230, 1e+231, 1e+232, 1e+233,
-      1e+234, 1e+235, 1e+236, 1e+237, 1e+238, 1e+239, 1e+240, 1e+241, 1e+242,
-      1e+243, 1e+244, 1e+245, 1e+246, 1e+247, 1e+248, 1e+249, 1e+250, 1e+251,
-      1e+252, 1e+253, 1e+254, 1e+255, 1e+256, 1e+257, 1e+258, 1e+259, 1e+260,
-      1e+261, 1e+262, 1e+263, 1e+264, 1e+265, 1e+266, 1e+267, 1e+268, 1e+269,
-      1e+270, 1e+271, 1e+272, 1e+273, 1e+274, 1e+275, 1e+276, 1e+277, 1e+278,
-      1e+279, 1e+280, 1e+281, 1e+282, 1e+283, 1e+284, 1e+285, 1e+286, 1e+287,
-      1e+288, 1e+289, 1e+290, 1e+291, 1e+292, 1e+293, 1e+294, 1e+295, 1e+296,
-      1e+297, 1e+298, 1e+299, 1e+300, 1e+301, 1e+302, 1e+303, 1e+304, 1e+305,
-      1e+306, 1e+307, 1e+308};
-  RAPIDJSON_ASSERT(n >= 0 && n <= 308);
-  return e[n];
-}
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_POW10_
diff --git a/third_party/rapidjson/internal/regex.h b/third_party/rapidjson/internal/regex.h
deleted file mode 100644
index 1543d172..00000000
--- a/third_party/rapidjson/internal/regex.h
+++ /dev/null
@@ -1,733 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_INTERNAL_REGEX_H_
-#define RAPIDJSON_INTERNAL_REGEX_H_
-
-#include "rapidjson/allocators.h"
-#include "rapidjson/stream.h"
-#include "stack.h"
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-RAPIDJSON_DIAG_OFF(switch - enum)
-RAPIDJSON_DIAG_OFF(implicit - fallthrough)
-#endif
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4512)  // assignment operator could not be generated
-#endif
-
-#ifndef RAPIDJSON_REGEX_VERBOSE
-#define RAPIDJSON_REGEX_VERBOSE 0
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericRegex
-
-static const SizeType kRegexInvalidState = ~SizeType(
-    0);  //!< Represents an invalid index in GenericRegex::State::out, out1
-static const SizeType kRegexInvalidRange = ~SizeType(0);
-
-//! Regular expression engine with subset of ECMAscript grammar.
-/*!
-    Supported regular expression syntax:
-    - \c ab     Concatenation
-    - \c a|b    Alternation
-    - \c a?     Zero or one
-    - \c a*     Zero or more
-    - \c a+     One or more
-    - \c a{3}   Exactly 3 times
-    - \c a{3,}  At least 3 times
-    - \c a{3,5} 3 to 5 times
-    - \c (ab)   Grouping
-    - \c ^a     At the beginning
-    - \c a$     At the end
-    - \c .      Any character
-    - \c [abc]  Character classes
-    - \c [a-c]  Character class range
-    - \c [a-z0-9_] Character class combination
-    - \c [^abc] Negated character classes
-    - \c [^a-c] Negated character class range
-    - \c [\b]   Backspace (U+0008)
-    - \c \\| \\\\ ...  Escape characters
-    - \c \\f Form feed (U+000C)
-    - \c \\n Line feed (U+000A)
-    - \c \\r Carriage return (U+000D)
-    - \c \\t Tab (U+0009)
-    - \c \\v Vertical tab (U+000B)
-
-    \note This is a Thompson NFA engine, implemented with reference to
-        Cox, Russ. "Regular Expression Matching Can Be Simple And Fast (but is
-   slow in Java, Perl, PHP, Python, Ruby,...).",
-        https://swtch.com/~rsc/regexp/regexp1.html
-*/
-template <typename Encoding, typename Allocator = CrtAllocator>
-class GenericRegex {
- public:
-  typedef typename Encoding::Ch Ch;
-
-  GenericRegex(const Ch* source, Allocator* allocator = 0)
-      : states_(allocator, 256),
-        ranges_(allocator, 256),
-        root_(kRegexInvalidState),
-        stateCount_(),
-        rangeCount_(),
-        stateSet_(),
-        state0_(allocator, 0),
-        state1_(allocator, 0),
-        anchorBegin_(),
-        anchorEnd_() {
-    GenericStringStream<Encoding> ss(source);
-    DecodedStream<GenericStringStream<Encoding> > ds(ss);
-    Parse(ds);
-  }
-
-  ~GenericRegex() { Allocator::Free(stateSet_); }
-
-  bool IsValid() const { return root_ != kRegexInvalidState; }
-
-  template <typename InputStream>
-  bool Match(InputStream& is) const {
-    return SearchWithAnchoring(is, true, true);
-  }
-
-  bool Match(const Ch* s) const {
-    GenericStringStream<Encoding> is(s);
-    return Match(is);
-  }
-
-  template <typename InputStream>
-  bool Search(InputStream& is) const {
-    return SearchWithAnchoring(is, anchorBegin_, anchorEnd_);
-  }
-
-  bool Search(const Ch* s) const {
-    GenericStringStream<Encoding> is(s);
-    return Search(is);
-  }
-
- private:
-  enum Operator {
-    kZeroOrOne,
-    kZeroOrMore,
-    kOneOrMore,
-    kConcatenation,
-    kAlternation,
-    kLeftParenthesis
-  };
-
-  static const unsigned kAnyCharacterClass = 0xFFFFFFFF;  //!< For '.'
-  static const unsigned kRangeCharacterClass = 0xFFFFFFFE;
-  static const unsigned kRangeNegationFlag = 0x80000000;
-
-  struct Range {
-    unsigned start;  //
-    unsigned end;
-    SizeType next;
-  };
-
-  struct State {
-    SizeType out;   //!< Equals to kInvalid for matching state
-    SizeType out1;  //!< Equals to non-kInvalid for split
-    SizeType rangeStart;
-    unsigned codepoint;
-  };
-
-  struct Frag {
-    Frag(SizeType s, SizeType o, SizeType m) : start(s), out(o), minIndex(m) {}
-    SizeType start;
-    SizeType out;  //!< link-list of all output states
-    SizeType minIndex;
-  };
-
-  template <typename SourceStream>
-  class DecodedStream {
-   public:
-    DecodedStream(SourceStream& ss) : ss_(ss), codepoint_() { Decode(); }
-    unsigned Peek() { return codepoint_; }
-    unsigned Take() {
-      unsigned c = codepoint_;
-      if (c)  // No further decoding when '\0'
-        Decode();
-      return c;
-    }
-
-   private:
-    void Decode() {
-      if (!Encoding::Decode(ss_, &codepoint_))
-        codepoint_ = 0;
-    }
-
-    SourceStream& ss_;
-    unsigned codepoint_;
-  };
-
-  State& GetState(SizeType index) {
-    RAPIDJSON_ASSERT(index < stateCount_);
-    return states_.template Bottom<State>()[index];
-  }
-
-  const State& GetState(SizeType index) const {
-    RAPIDJSON_ASSERT(index < stateCount_);
-    return states_.template Bottom<State>()[index];
-  }
-
-  Range& GetRange(SizeType index) {
-    RAPIDJSON_ASSERT(index < rangeCount_);
-    return ranges_.template Bottom<Range>()[index];
-  }
-
-  const Range& GetRange(SizeType index) const {
-    RAPIDJSON_ASSERT(index < rangeCount_);
-    return ranges_.template Bottom<Range>()[index];
-  }
-
-  template <typename InputStream>
-  void Parse(DecodedStream<InputStream>& ds) {
-    Allocator allocator;
-    Stack<Allocator> operandStack(&allocator, 256);   // Frag
-    Stack<Allocator> operatorStack(&allocator, 256);  // Operator
-    Stack<Allocator> atomCountStack(&allocator,
-                                    256);  // unsigned (Atom per parenthesis)
-
-    *atomCountStack.template Push<unsigned>() = 0;
-
-    unsigned codepoint;
-    while (ds.Peek() != 0) {
-      switch (codepoint = ds.Take()) {
-        case '^':
-          anchorBegin_ = true;
-          break;
-
-        case '$':
-          anchorEnd_ = true;
-          break;
-
-        case '|':
-          while (!operatorStack.Empty() &&
-                 *operatorStack.template Top<Operator>() < kAlternation)
-            if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
-              return;
-          *operatorStack.template Push<Operator>() = kAlternation;
-          *atomCountStack.template Top<unsigned>() = 0;
-          break;
-
-        case '(':
-          *operatorStack.template Push<Operator>() = kLeftParenthesis;
-          *atomCountStack.template Push<unsigned>() = 0;
-          break;
-
-        case ')':
-          while (!operatorStack.Empty() &&
-                 *operatorStack.template Top<Operator>() != kLeftParenthesis)
-            if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
-              return;
-          if (operatorStack.Empty())
-            return;
-          operatorStack.template Pop<Operator>(1);
-          atomCountStack.template Pop<unsigned>(1);
-          ImplicitConcatenation(atomCountStack, operatorStack);
-          break;
-
-        case '?':
-          if (!Eval(operandStack, kZeroOrOne))
-            return;
-          break;
-
-        case '*':
-          if (!Eval(operandStack, kZeroOrMore))
-            return;
-          break;
-
-        case '+':
-          if (!Eval(operandStack, kOneOrMore))
-            return;
-          break;
-
-        case '{': {
-          unsigned n, m;
-          if (!ParseUnsigned(ds, &n))
-            return;
-
-          if (ds.Peek() == ',') {
-            ds.Take();
-            if (ds.Peek() == '}')
-              m = kInfinityQuantifier;
-            else if (!ParseUnsigned(ds, &m) || m < n)
-              return;
-          } else
-            m = n;
-
-          if (!EvalQuantifier(operandStack, n, m) || ds.Peek() != '}')
-            return;
-          ds.Take();
-        } break;
-
-        case '.':
-          PushOperand(operandStack, kAnyCharacterClass);
-          ImplicitConcatenation(atomCountStack, operatorStack);
-          break;
-
-        case '[': {
-          SizeType range;
-          if (!ParseRange(ds, &range))
-            return;
-          SizeType s = NewState(kRegexInvalidState, kRegexInvalidState,
-                                kRangeCharacterClass);
-          GetState(s).rangeStart = range;
-          *operandStack.template Push<Frag>() = Frag(s, s, s);
-        }
-          ImplicitConcatenation(atomCountStack, operatorStack);
-          break;
-
-        case '\\':  // Escape character
-          if (!CharacterEscape(ds, &codepoint))
-            return;  // Unsupported escape character
-                     // fall through to default
-
-        default:  // Pattern character
-          PushOperand(operandStack, codepoint);
-          ImplicitConcatenation(atomCountStack, operatorStack);
-      }
-    }
-
-    while (!operatorStack.Empty())
-      if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
-        return;
-
-    // Link the operand to matching state.
-    if (operandStack.GetSize() == sizeof(Frag)) {
-      Frag* e = operandStack.template Pop<Frag>(1);
-      Patch(e->out, NewState(kRegexInvalidState, kRegexInvalidState, 0));
-      root_ = e->start;
-
-#if RAPIDJSON_REGEX_VERBOSE
-      printf("root: %d\n", root_);
-      for (SizeType i = 0; i < stateCount_; i++) {
-        State& s = GetState(i);
-        printf("[%2d] out: %2d out1: %2d c: '%c'\n", i, s.out, s.out1,
-               (char)s.codepoint);
-      }
-      printf("\n");
-#endif
-    }
-
-    // Preallocate buffer for SearchWithAnchoring()
-    RAPIDJSON_ASSERT(stateSet_ == 0);
-    if (stateCount_ > 0) {
-      stateSet_ = static_cast<unsigned*>(
-          states_.GetAllocator().Malloc(GetStateSetSize()));
-      state0_.template Reserve<SizeType>(stateCount_);
-      state1_.template Reserve<SizeType>(stateCount_);
-    }
-  }
-
-  SizeType NewState(SizeType out, SizeType out1, unsigned codepoint) {
-    State* s = states_.template Push<State>();
-    s->out = out;
-    s->out1 = out1;
-    s->codepoint = codepoint;
-    s->rangeStart = kRegexInvalidRange;
-    return stateCount_++;
-  }
-
-  void PushOperand(Stack<Allocator>& operandStack, unsigned codepoint) {
-    SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, codepoint);
-    *operandStack.template Push<Frag>() = Frag(s, s, s);
-  }
-
-  void ImplicitConcatenation(Stack<Allocator>& atomCountStack,
-                             Stack<Allocator>& operatorStack) {
-    if (*atomCountStack.template Top<unsigned>())
-      *operatorStack.template Push<Operator>() = kConcatenation;
-    (*atomCountStack.template Top<unsigned>())++;
-  }
-
-  SizeType Append(SizeType l1, SizeType l2) {
-    SizeType old = l1;
-    while (GetState(l1).out != kRegexInvalidState)
-      l1 = GetState(l1).out;
-    GetState(l1).out = l2;
-    return old;
-  }
-
-  void Patch(SizeType l, SizeType s) {
-    for (SizeType next; l != kRegexInvalidState; l = next) {
-      next = GetState(l).out;
-      GetState(l).out = s;
-    }
-  }
-
-  bool Eval(Stack<Allocator>& operandStack, Operator op) {
-    switch (op) {
-      case kConcatenation:
-        RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag) * 2);
-        {
-          Frag e2 = *operandStack.template Pop<Frag>(1);
-          Frag e1 = *operandStack.template Pop<Frag>(1);
-          Patch(e1.out, e2.start);
-          *operandStack.template Push<Frag>() =
-              Frag(e1.start, e2.out, Min(e1.minIndex, e2.minIndex));
-        }
-        return true;
-
-      case kAlternation:
-        if (operandStack.GetSize() >= sizeof(Frag) * 2) {
-          Frag e2 = *operandStack.template Pop<Frag>(1);
-          Frag e1 = *operandStack.template Pop<Frag>(1);
-          SizeType s = NewState(e1.start, e2.start, 0);
-          *operandStack.template Push<Frag>() =
-              Frag(s, Append(e1.out, e2.out), Min(e1.minIndex, e2.minIndex));
-          return true;
-        }
-        return false;
-
-      case kZeroOrOne:
-        if (operandStack.GetSize() >= sizeof(Frag)) {
-          Frag e = *operandStack.template Pop<Frag>(1);
-          SizeType s = NewState(kRegexInvalidState, e.start, 0);
-          *operandStack.template Push<Frag>() =
-              Frag(s, Append(e.out, s), e.minIndex);
-          return true;
-        }
-        return false;
-
-      case kZeroOrMore:
-        if (operandStack.GetSize() >= sizeof(Frag)) {
-          Frag e = *operandStack.template Pop<Frag>(1);
-          SizeType s = NewState(kRegexInvalidState, e.start, 0);
-          Patch(e.out, s);
-          *operandStack.template Push<Frag>() = Frag(s, s, e.minIndex);
-          return true;
-        }
-        return false;
-
-      default:
-        RAPIDJSON_ASSERT(op == kOneOrMore);
-        if (operandStack.GetSize() >= sizeof(Frag)) {
-          Frag e = *operandStack.template Pop<Frag>(1);
-          SizeType s = NewState(kRegexInvalidState, e.start, 0);
-          Patch(e.out, s);
-          *operandStack.template Push<Frag>() = Frag(e.start, s, e.minIndex);
-          return true;
-        }
-        return false;
-    }
-  }
-
-  bool EvalQuantifier(Stack<Allocator>& operandStack, unsigned n, unsigned m) {
-    RAPIDJSON_ASSERT(n <= m);
-    RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag));
-
-    if (n == 0) {
-      if (m == 0)  // a{0} not support
-        return false;
-      else if (m == kInfinityQuantifier)
-        Eval(operandStack, kZeroOrMore);  // a{0,} -> a*
-      else {
-        Eval(operandStack, kZeroOrOne);  // a{0,5} -> a?
-        for (unsigned i = 0; i < m - 1; i++)
-          CloneTopOperand(operandStack);  // a{0,5} -> a? a? a? a? a?
-        for (unsigned i = 0; i < m - 1; i++)
-          Eval(operandStack, kConcatenation);  // a{0,5} -> a?a?a?a?a?
-      }
-      return true;
-    }
-
-    for (unsigned i = 0; i < n - 1; i++)  // a{3} -> a a a
-      CloneTopOperand(operandStack);
-
-    if (m == kInfinityQuantifier)
-      Eval(operandStack, kOneOrMore);  // a{3,} -> a a a+
-    else if (m > n) {
-      CloneTopOperand(operandStack);   // a{3,5} -> a a a a
-      Eval(operandStack, kZeroOrOne);  // a{3,5} -> a a a a?
-      for (unsigned i = n; i < m - 1; i++)
-        CloneTopOperand(operandStack);  // a{3,5} -> a a a a? a?
-      for (unsigned i = n; i < m; i++)
-        Eval(operandStack, kConcatenation);  // a{3,5} -> a a aa?a?
-    }
-
-    for (unsigned i = 0; i < n - 1; i++)
-      Eval(operandStack,
-           kConcatenation);  // a{3} -> aaa, a{3,} -> aaa+, a{3.5} -> aaaa?a?
-
-    return true;
-  }
-
-  static SizeType Min(SizeType a, SizeType b) { return a < b ? a : b; }
-
-  void CloneTopOperand(Stack<Allocator>& operandStack) {
-    const Frag src =
-        *operandStack
-             .template Top<Frag>();  // Copy constructor to prevent invalidation
-    SizeType count =
-        stateCount_ - src.minIndex;  // Assumes top operand contains states in
-                                     // [src->minIndex, stateCount_)
-    State* s = states_.template Push<State>(count);
-    memcpy(s, &GetState(src.minIndex), count * sizeof(State));
-    for (SizeType j = 0; j < count; j++) {
-      if (s[j].out != kRegexInvalidState)
-        s[j].out += count;
-      if (s[j].out1 != kRegexInvalidState)
-        s[j].out1 += count;
-    }
-    *operandStack.template Push<Frag>() =
-        Frag(src.start + count, src.out + count, src.minIndex + count);
-    stateCount_ += count;
-  }
-
-  template <typename InputStream>
-  bool ParseUnsigned(DecodedStream<InputStream>& ds, unsigned* u) {
-    unsigned r = 0;
-    if (ds.Peek() < '0' || ds.Peek() > '9')
-      return false;
-    while (ds.Peek() >= '0' && ds.Peek() <= '9') {
-      if (r >= 429496729 && ds.Peek() > '5')  // 2^32 - 1 = 4294967295
-        return false;                         // overflow
-      r = r * 10 + (ds.Take() - '0');
-    }
-    *u = r;
-    return true;
-  }
-
-  template <typename InputStream>
-  bool ParseRange(DecodedStream<InputStream>& ds, SizeType* range) {
-    bool isBegin = true;
-    bool negate = false;
-    int step = 0;
-    SizeType start = kRegexInvalidRange;
-    SizeType current = kRegexInvalidRange;
-    unsigned codepoint;
-    while ((codepoint = ds.Take()) != 0) {
-      if (isBegin) {
-        isBegin = false;
-        if (codepoint == '^') {
-          negate = true;
-          continue;
-        }
-      }
-
-      switch (codepoint) {
-        case ']':
-          if (start == kRegexInvalidRange)
-            return false;   // Error: nothing inside []
-          if (step == 2) {  // Add trailing '-'
-            SizeType r = NewRange('-');
-            RAPIDJSON_ASSERT(current != kRegexInvalidRange);
-            GetRange(current).next = r;
-          }
-          if (negate)
-            GetRange(start).start |= kRangeNegationFlag;
-          *range = start;
-          return true;
-
-        case '\\':
-          if (ds.Peek() == 'b') {
-            ds.Take();
-            codepoint = 0x0008;  // Escape backspace character
-          } else if (!CharacterEscape(ds, &codepoint))
-            return false;
-          // fall through to default
-
-        default:
-          switch (step) {
-            case 1:
-              if (codepoint == '-') {
-                step++;
-                break;
-              }
-              // fall through to step 0 for other characters
-
-            case 0: {
-              SizeType r = NewRange(codepoint);
-              if (current != kRegexInvalidRange)
-                GetRange(current).next = r;
-              if (start == kRegexInvalidRange)
-                start = r;
-              current = r;
-            }
-              step = 1;
-              break;
-
-            default:
-              RAPIDJSON_ASSERT(step == 2);
-              GetRange(current).end = codepoint;
-              step = 0;
-          }
-      }
-    }
-    return false;
-  }
-
-  SizeType NewRange(unsigned codepoint) {
-    Range* r = ranges_.template Push<Range>();
-    r->start = r->end = codepoint;
-    r->next = kRegexInvalidRange;
-    return rangeCount_++;
-  }
-
-  template <typename InputStream>
-  bool CharacterEscape(DecodedStream<InputStream>& ds,
-                       unsigned* escapedCodepoint) {
-    unsigned codepoint;
-    switch (codepoint = ds.Take()) {
-      case '^':
-      case '$':
-      case '|':
-      case '(':
-      case ')':
-      case '?':
-      case '*':
-      case '+':
-      case '.':
-      case '[':
-      case ']':
-      case '{':
-      case '}':
-      case '\\':
-        *escapedCodepoint = codepoint;
-        return true;
-      case 'f':
-        *escapedCodepoint = 0x000C;
-        return true;
-      case 'n':
-        *escapedCodepoint = 0x000A;
-        return true;
-      case 'r':
-        *escapedCodepoint = 0x000D;
-        return true;
-      case 't':
-        *escapedCodepoint = 0x0009;
-        return true;
-      case 'v':
-        *escapedCodepoint = 0x000B;
-        return true;
-      default:
-        return false;  // Unsupported escape character
-    }
-  }
-
-  template <typename InputStream>
-  bool SearchWithAnchoring(InputStream& is,
-                           bool anchorBegin,
-                           bool anchorEnd) const {
-    RAPIDJSON_ASSERT(IsValid());
-    DecodedStream<InputStream> ds(is);
-
-    state0_.Clear();
-    Stack<Allocator>*current = &state0_, *next = &state1_;
-    const size_t stateSetSize = GetStateSetSize();
-    std::memset(stateSet_, 0, stateSetSize);
-
-    bool matched = AddState(*current, root_);
-    unsigned codepoint;
-    while (!current->Empty() && (codepoint = ds.Take()) != 0) {
-      std::memset(stateSet_, 0, stateSetSize);
-      next->Clear();
-      matched = false;
-      for (const SizeType* s = current->template Bottom<SizeType>();
-           s != current->template End<SizeType>(); ++s) {
-        const State& sr = GetState(*s);
-        if (sr.codepoint == codepoint || sr.codepoint == kAnyCharacterClass ||
-            (sr.codepoint == kRangeCharacterClass &&
-             MatchRange(sr.rangeStart, codepoint))) {
-          matched = AddState(*next, sr.out) || matched;
-          if (!anchorEnd && matched)
-            return true;
-        }
-        if (!anchorBegin)
-          AddState(*next, root_);
-      }
-      internal::Swap(current, next);
-    }
-
-    return matched;
-  }
-
-  size_t GetStateSetSize() const { return (stateCount_ + 31) / 32 * 4; }
-
-  // Return whether the added states is a match state
-  bool AddState(Stack<Allocator>& l, SizeType index) const {
-    RAPIDJSON_ASSERT(index != kRegexInvalidState);
-
-    const State& s = GetState(index);
-    if (s.out1 != kRegexInvalidState) {  // Split
-      bool matched = AddState(l, s.out);
-      return AddState(l, s.out1) || matched;
-    } else if (!(stateSet_[index >> 5] & (1 << (index & 31)))) {
-      stateSet_[index >> 5] |= (1 << (index & 31));
-      *l.template PushUnsafe<SizeType>() = index;
-    }
-    return s.out ==
-           kRegexInvalidState;  // by using PushUnsafe() above, we can ensure s
-                                // is not validated due to reallocation.
-  }
-
-  bool MatchRange(SizeType rangeIndex, unsigned codepoint) const {
-    bool yes = (GetRange(rangeIndex).start & kRangeNegationFlag) == 0;
-    while (rangeIndex != kRegexInvalidRange) {
-      const Range& r = GetRange(rangeIndex);
-      if (codepoint >= (r.start & ~kRangeNegationFlag) && codepoint <= r.end)
-        return yes;
-      rangeIndex = r.next;
-    }
-    return !yes;
-  }
-
-  Stack<Allocator> states_;
-  Stack<Allocator> ranges_;
-  SizeType root_;
-  SizeType stateCount_;
-  SizeType rangeCount_;
-
-  static const unsigned kInfinityQuantifier = ~0u;
-
-  // For SearchWithAnchoring()
-  uint32_t* stateSet_;  // allocated by states_.GetAllocator()
-  mutable Stack<Allocator> state0_;
-  mutable Stack<Allocator> state1_;
-  bool anchorBegin_;
-  bool anchorEnd_;
-};
-
-typedef GenericRegex<UTF8<> > Regex;
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_INTERNAL_REGEX_H_
diff --git a/third_party/rapidjson/internal/stack.h b/third_party/rapidjson/internal/stack.h
deleted file mode 100644
index ec5d9239..00000000
--- a/third_party/rapidjson/internal/stack.h
+++ /dev/null
@@ -1,243 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_INTERNAL_STACK_H_
-#define RAPIDJSON_INTERNAL_STACK_H_
-
-#include "rapidjson/allocators.h"
-#include "swap.h"
-
-#if defined(__clang__)
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(c++ 98 - compat)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-///////////////////////////////////////////////////////////////////////////////
-// Stack
-
-//! A type-unsafe stack for storing different types of data.
-/*! \tparam Allocator Allocator for allocating stack memory.
- */
-template <typename Allocator>
-class Stack {
- public:
-  // Optimization note: Do not allocate memory for stack_ in constructor.
-  // Do it lazily when first Push() -> Expand() -> Resize().
-  Stack(Allocator* allocator, size_t stackCapacity)
-      : allocator_(allocator),
-        ownAllocator_(0),
-        stack_(0),
-        stackTop_(0),
-        stackEnd_(0),
-        initialCapacity_(stackCapacity) {}
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  Stack(Stack&& rhs)
-      : allocator_(rhs.allocator_),
-        ownAllocator_(rhs.ownAllocator_),
-        stack_(rhs.stack_),
-        stackTop_(rhs.stackTop_),
-        stackEnd_(rhs.stackEnd_),
-        initialCapacity_(rhs.initialCapacity_) {
-    rhs.allocator_ = 0;
-    rhs.ownAllocator_ = 0;
-    rhs.stack_ = 0;
-    rhs.stackTop_ = 0;
-    rhs.stackEnd_ = 0;
-    rhs.initialCapacity_ = 0;
-  }
-#endif
-
-  ~Stack() { Destroy(); }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  Stack& operator=(Stack&& rhs) {
-    if (&rhs != this) {
-      Destroy();
-
-      allocator_ = rhs.allocator_;
-      ownAllocator_ = rhs.ownAllocator_;
-      stack_ = rhs.stack_;
-      stackTop_ = rhs.stackTop_;
-      stackEnd_ = rhs.stackEnd_;
-      initialCapacity_ = rhs.initialCapacity_;
-
-      rhs.allocator_ = 0;
-      rhs.ownAllocator_ = 0;
-      rhs.stack_ = 0;
-      rhs.stackTop_ = 0;
-      rhs.stackEnd_ = 0;
-      rhs.initialCapacity_ = 0;
-    }
-    return *this;
-  }
-#endif
-
-  void Swap(Stack& rhs) RAPIDJSON_NOEXCEPT {
-    internal::Swap(allocator_, rhs.allocator_);
-    internal::Swap(ownAllocator_, rhs.ownAllocator_);
-    internal::Swap(stack_, rhs.stack_);
-    internal::Swap(stackTop_, rhs.stackTop_);
-    internal::Swap(stackEnd_, rhs.stackEnd_);
-    internal::Swap(initialCapacity_, rhs.initialCapacity_);
-  }
-
-  void Clear() { stackTop_ = stack_; }
-
-  void ShrinkToFit() {
-    if (Empty()) {
-      // If the stack is empty, completely deallocate the memory.
-      Allocator::Free(stack_);
-      stack_ = 0;
-      stackTop_ = 0;
-      stackEnd_ = 0;
-    } else
-      Resize(GetSize());
-  }
-
-  // Optimization note: try to minimize the size of this function for force
-  // inline. Expansion is run very infrequently, so it is moved to another
-  // (probably non-inline) function.
-  template <typename T>
-  RAPIDJSON_FORCEINLINE void Reserve(size_t count = 1) {
-    // Expand the stack if needed
-    if (RAPIDJSON_UNLIKELY(stackTop_ + sizeof(T) * count > stackEnd_))
-      Expand<T>(count);
-  }
-
-  template <typename T>
-  RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) {
-    Reserve<T>(count);
-    return PushUnsafe<T>(count);
-  }
-
-  template <typename T>
-  RAPIDJSON_FORCEINLINE T* PushUnsafe(size_t count = 1) {
-    RAPIDJSON_ASSERT(stackTop_ + sizeof(T) * count <= stackEnd_);
-    T* ret = reinterpret_cast<T*>(stackTop_);
-    stackTop_ += sizeof(T) * count;
-    return ret;
-  }
-
-  template <typename T>
-  T* Pop(size_t count) {
-    RAPIDJSON_ASSERT(GetSize() >= count * sizeof(T));
-    stackTop_ -= count * sizeof(T);
-    return reinterpret_cast<T*>(stackTop_);
-  }
-
-  template <typename T>
-  T* Top() {
-    RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
-    return reinterpret_cast<T*>(stackTop_ - sizeof(T));
-  }
-
-  template <typename T>
-  const T* Top() const {
-    RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
-    return reinterpret_cast<T*>(stackTop_ - sizeof(T));
-  }
-
-  template <typename T>
-  T* End() {
-    return reinterpret_cast<T*>(stackTop_);
-  }
-
-  template <typename T>
-  const T* End() const {
-    return reinterpret_cast<T*>(stackTop_);
-  }
-
-  template <typename T>
-  T* Bottom() {
-    return reinterpret_cast<T*>(stack_);
-  }
-
-  template <typename T>
-  const T* Bottom() const {
-    return reinterpret_cast<T*>(stack_);
-  }
-
-  bool HasAllocator() const { return allocator_ != 0; }
-
-  Allocator& GetAllocator() {
-    RAPIDJSON_ASSERT(allocator_);
-    return *allocator_;
-  }
-
-  bool Empty() const { return stackTop_ == stack_; }
-  size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); }
-  size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); }
-
- private:
-  template <typename T>
-  void Expand(size_t count) {
-    // Only expand the capacity if the current stack exists. Otherwise just
-    // create a stack with initial capacity.
-    size_t newCapacity;
-    if (stack_ == 0) {
-      if (!allocator_)
-        ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
-      newCapacity = initialCapacity_;
-    } else {
-      newCapacity = GetCapacity();
-      newCapacity += (newCapacity + 1) / 2;
-    }
-    size_t newSize = GetSize() + sizeof(T) * count;
-    if (newCapacity < newSize)
-      newCapacity = newSize;
-
-    Resize(newCapacity);
-  }
-
-  void Resize(size_t newCapacity) {
-    const size_t size = GetSize();  // Backup the current size
-    stack_ = static_cast<char*>(
-        allocator_->Realloc(stack_, GetCapacity(), newCapacity));
-    stackTop_ = stack_ + size;
-    stackEnd_ = stack_ + newCapacity;
-  }
-
-  void Destroy() {
-    Allocator::Free(stack_);
-    RAPIDJSON_DELETE(ownAllocator_);  // Only delete if it is owned by the stack
-  }
-
-  // Prohibit copy constructor & assignment operator.
-  Stack(const Stack&);
-  Stack& operator=(const Stack&);
-
-  Allocator* allocator_;
-  Allocator* ownAllocator_;
-  char* stack_;
-  char* stackTop_;
-  char* stackEnd_;
-  size_t initialCapacity_;
-};
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#if defined(__clang__)
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_STACK_H_
diff --git a/third_party/rapidjson/internal/strfunc.h b/third_party/rapidjson/internal/strfunc.h
deleted file mode 100644
index 59b63188..00000000
--- a/third_party/rapidjson/internal/strfunc.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_INTERNAL_STRFUNC_H_
-#define RAPIDJSON_INTERNAL_STRFUNC_H_
-
-#include "rapidjson/stream.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-//! Custom strlen() which works on different character types.
-/*! \tparam Ch Character type (e.g. char, wchar_t, short)
-    \param s Null-terminated input string.
-    \return Number of characters in the string.
-    \note This has the same semantics as strlen(), the return value is not
-   number of Unicode codepoints.
-*/
-template <typename Ch>
-inline SizeType StrLen(const Ch* s) {
-  const Ch* p = s;
-  while (*p)
-    ++p;
-  return SizeType(p - s);
-}
-
-//! Returns number of code points in a encoded string.
-template <typename Encoding>
-bool CountStringCodePoint(const typename Encoding::Ch* s,
-                          SizeType length,
-                          SizeType* outCount) {
-  GenericStringStream<Encoding> is(s);
-  const typename Encoding::Ch* end = s + length;
-  SizeType count = 0;
-  while (is.src_ < end) {
-    unsigned codepoint;
-    if (!Encoding::Decode(is, &codepoint))
-      return false;
-    count++;
-  }
-  *outCount = count;
-  return true;
-}
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_INTERNAL_STRFUNC_H_
diff --git a/third_party/rapidjson/internal/strtod.h b/third_party/rapidjson/internal/strtod.h
deleted file mode 100644
index 289c413b..00000000
--- a/third_party/rapidjson/internal/strtod.h
+++ /dev/null
@@ -1,269 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_STRTOD_
-#define RAPIDJSON_STRTOD_
-
-#include "ieee754.h"
-#include "biginteger.h"
-#include "diyfp.h"
-#include "pow10.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-inline double FastPath(double significand, int exp) {
-    if (exp < -308)
-        return 0.0;
-    else if (exp >= 0)
-        return significand * internal::Pow10(exp);
-    else
-        return significand / internal::Pow10(-exp);
-}
-
-inline double StrtodNormalPrecision(double d, int p) {
-    if (p < -308) {
-        // Prevent expSum < -308, making Pow10(p) = 0
-        d = FastPath(d, -308);
-        d = FastPath(d, p + 308);
-    }
-    else
-        d = FastPath(d, p);
-    return d;
-}
-
-template <typename T>
-inline T Min3(T a, T b, T c) {
-    T m = a;
-    if (m > b) m = b;
-    if (m > c) m = c;
-    return m;
-}
-
-inline int CheckWithinHalfULP(double b, const BigInteger& d, int dExp) {
-    const Double db(b);
-    const uint64_t bInt = db.IntegerSignificand();
-    const int bExp = db.IntegerExponent();
-    const int hExp = bExp - 1;
-
-    int dS_Exp2 = 0, dS_Exp5 = 0, bS_Exp2 = 0, bS_Exp5 = 0, hS_Exp2 = 0, hS_Exp5 = 0;
-
-    // Adjust for decimal exponent
-    if (dExp >= 0) {
-        dS_Exp2 += dExp;
-        dS_Exp5 += dExp;
-    }
-    else {
-        bS_Exp2 -= dExp;
-        bS_Exp5 -= dExp;
-        hS_Exp2 -= dExp;
-        hS_Exp5 -= dExp;
-    }
-
-    // Adjust for binary exponent
-    if (bExp >= 0)
-        bS_Exp2 += bExp;
-    else {
-        dS_Exp2 -= bExp;
-        hS_Exp2 -= bExp;
-    }
-
-    // Adjust for half ulp exponent
-    if (hExp >= 0)
-        hS_Exp2 += hExp;
-    else {
-        dS_Exp2 -= hExp;
-        bS_Exp2 -= hExp;
-    }
-
-    // Remove common power of two factor from all three scaled values
-    int common_Exp2 = Min3(dS_Exp2, bS_Exp2, hS_Exp2);
-    dS_Exp2 -= common_Exp2;
-    bS_Exp2 -= common_Exp2;
-    hS_Exp2 -= common_Exp2;
-
-    BigInteger dS = d;
-    dS.MultiplyPow5(static_cast<unsigned>(dS_Exp5)) <<= static_cast<unsigned>(dS_Exp2);
-
-    BigInteger bS(bInt);
-    bS.MultiplyPow5(static_cast<unsigned>(bS_Exp5)) <<= static_cast<unsigned>(bS_Exp2);
-
-    BigInteger hS(1);
-    hS.MultiplyPow5(static_cast<unsigned>(hS_Exp5)) <<= static_cast<unsigned>(hS_Exp2);
-
-    BigInteger delta(0);
-    dS.Difference(bS, &delta);
-
-    return delta.Compare(hS);
-}
-
-inline bool StrtodFast(double d, int p, double* result) {
-    // Use fast path for string-to-double conversion if possible
-    // see http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/
-    if (p > 22  && p < 22 + 16) {
-        // Fast Path Cases In Disguise
-        d *= internal::Pow10(p - 22);
-        p = 22;
-    }
-
-    if (p >= -22 && p <= 22 && d <= 9007199254740991.0) { // 2^53 - 1
-        *result = FastPath(d, p);
-        return true;
-    }
-    else
-        return false;
-}
-
-// Compute an approximation and see if it is within 1/2 ULP
-inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosition, int exp, double* result) {
-    uint64_t significand = 0;
-    size_t i = 0;   // 2^64 - 1 = 18446744073709551615, 1844674407370955161 = 0x1999999999999999    
-    for (; i < length; i++) {
-        if (significand  >  RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) ||
-            (significand == RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) && decimals[i] > '5'))
-            break;
-        significand = significand * 10u + static_cast<unsigned>(decimals[i] - '0');
-    }
-    
-    if (i < length && decimals[i] >= '5') // Rounding
-        significand++;
-
-    size_t remaining = length - i;
-    const unsigned kUlpShift = 3;
-    const unsigned kUlp = 1 << kUlpShift;
-    int64_t error = (remaining == 0) ? 0 : kUlp / 2;
-
-    DiyFp v(significand, 0);
-    v = v.Normalize();
-    error <<= -v.e;
-
-    const int dExp = static_cast<int>(decimalPosition) - static_cast<int>(i) + exp;
-
-    int actualExp;
-    DiyFp cachedPower = GetCachedPower10(dExp, &actualExp);
-    if (actualExp != dExp) {
-        static const DiyFp kPow10[] = {
-            DiyFp(RAPIDJSON_UINT64_C2(0xa0000000, 00000000), -60),  // 10^1
-            DiyFp(RAPIDJSON_UINT64_C2(0xc8000000, 00000000), -57),  // 10^2
-            DiyFp(RAPIDJSON_UINT64_C2(0xfa000000, 00000000), -54),  // 10^3
-            DiyFp(RAPIDJSON_UINT64_C2(0x9c400000, 00000000), -50),  // 10^4
-            DiyFp(RAPIDJSON_UINT64_C2(0xc3500000, 00000000), -47),  // 10^5
-            DiyFp(RAPIDJSON_UINT64_C2(0xf4240000, 00000000), -44),  // 10^6
-            DiyFp(RAPIDJSON_UINT64_C2(0x98968000, 00000000), -40)   // 10^7
-        };
-        int  adjustment = dExp - actualExp - 1;
-        RAPIDJSON_ASSERT(adjustment >= 0 && adjustment < 7);
-        v = v * kPow10[adjustment];
-        if (length + static_cast<unsigned>(adjustment)> 19u) // has more digits than decimal digits in 64-bit
-            error += kUlp / 2;
-    }
-
-    v = v * cachedPower;
-
-    error += kUlp + (error == 0 ? 0 : 1);
-
-    const int oldExp = v.e;
-    v = v.Normalize();
-    error <<= oldExp - v.e;
-
-    const unsigned effectiveSignificandSize = Double::EffectiveSignificandSize(64 + v.e);
-    unsigned precisionSize = 64 - effectiveSignificandSize;
-    if (precisionSize + kUlpShift >= 64) {
-        unsigned scaleExp = (precisionSize + kUlpShift) - 63;
-        v.f >>= scaleExp;
-        v.e += scaleExp; 
-        error = (error >> scaleExp) + 1 + static_cast<int>(kUlp);
-        precisionSize -= scaleExp;
-    }
-
-    DiyFp rounded(v.f >> precisionSize, v.e + static_cast<int>(precisionSize));
-    const uint64_t precisionBits = (v.f & ((uint64_t(1) << precisionSize) - 1)) * kUlp;
-    const uint64_t halfWay = (uint64_t(1) << (precisionSize - 1)) * kUlp;
-    if (precisionBits >= halfWay + static_cast<unsigned>(error)) {
-        rounded.f++;
-        if (rounded.f & (DiyFp::kDpHiddenBit << 1)) { // rounding overflows mantissa (issue #340)
-            rounded.f >>= 1;
-            rounded.e++;
-        }
-    }
-
-    *result = rounded.ToDouble();
-
-    return halfWay - static_cast<unsigned>(error) >= precisionBits || precisionBits >= halfWay + static_cast<unsigned>(error);
-}
-
-inline double StrtodBigInteger(double approx, const char* decimals, size_t length, size_t decimalPosition, int exp) {
-    const BigInteger dInt(decimals, length);
-    const int dExp = static_cast<int>(decimalPosition) - static_cast<int>(length) + exp;
-    Double a(approx);
-    int cmp = CheckWithinHalfULP(a.Value(), dInt, dExp);
-    if (cmp < 0)
-        return a.Value();  // within half ULP
-    else if (cmp == 0) {
-        // Round towards even
-        if (a.Significand() & 1)
-            return a.NextPositiveDouble();
-        else
-            return a.Value();
-    }
-    else // adjustment
-        return a.NextPositiveDouble();
-}
-
-inline double StrtodFullPrecision(double d, int p, const char* decimals, size_t length, size_t decimalPosition, int exp) {
-    RAPIDJSON_ASSERT(d >= 0.0);
-    RAPIDJSON_ASSERT(length >= 1);
-
-    double result;
-    if (StrtodFast(d, p, &result))
-        return result;
-
-    // Trim leading zeros
-    while (*decimals == '0' && length > 1) {
-        length--;
-        decimals++;
-        decimalPosition--;
-    }
-
-    // Trim trailing zeros
-    while (decimals[length - 1] == '0' && length > 1) {
-        length--;
-        decimalPosition--;
-        exp++;
-    }
-
-    // Trim right-most digits
-    const int kMaxDecimalDigit = 780;
-    if (static_cast<int>(length) > kMaxDecimalDigit) {
-        int delta = (static_cast<int>(length) - kMaxDecimalDigit);
-        exp += delta;
-        decimalPosition -= static_cast<unsigned>(delta);
-        length = kMaxDecimalDigit;
-    }
-
-    // If too small, underflow to zero
-    if (int(length) + exp < -324)
-        return 0.0;
-
-    if (StrtodDiyFp(decimals, length, decimalPosition, exp, &result))
-        return result;
-
-    // Use approximation from StrtodDiyFp and make adjustment with BigInteger comparison
-    return StrtodBigInteger(result, decimals, length, decimalPosition, exp);
-}
-
-} // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_STRTOD_
diff --git a/third_party/rapidjson/internal/swap.h b/third_party/rapidjson/internal/swap.h
deleted file mode 100644
index 33e24dcb..00000000
--- a/third_party/rapidjson/internal/swap.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_INTERNAL_SWAP_H_
-#define RAPIDJSON_INTERNAL_SWAP_H_
-
-#include "rapidjson/rapidjson.h"
-
-#if defined(__clang__)
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(c++ 98 - compat)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-namespace internal {
-
-//! Custom swap() to avoid dependency on C++ <algorithm> header
-/*! \tparam T Type of the arguments to swap, should be instantiated with
-   primitive C++ types only. \note This has the same semantics as std::swap().
-*/
-template <typename T>
-inline void Swap(T& a, T& b) RAPIDJSON_NOEXCEPT {
-  T tmp = a;
-  a = b;
-  b = tmp;
-}
-
-}  // namespace internal
-RAPIDJSON_NAMESPACE_END
-
-#if defined(__clang__)
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_INTERNAL_SWAP_H_
diff --git a/third_party/rapidjson/istreamwrapper.h b/third_party/rapidjson/istreamwrapper.h
deleted file mode 100644
index f5fe2897..00000000
--- a/third_party/rapidjson/istreamwrapper.h
+++ /dev/null
@@ -1,115 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_ISTREAMWRAPPER_H_
-#define RAPIDJSON_ISTREAMWRAPPER_H_
-
-#include "stream.h"
-#include <iosfwd>
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4351) // new behavior: elements of array 'array' will be default initialized
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Wrapper of \c std::basic_istream into RapidJSON's Stream concept.
-/*!
-    The classes can be wrapped including but not limited to:
-
-    - \c std::istringstream
-    - \c std::stringstream
-    - \c std::wistringstream
-    - \c std::wstringstream
-    - \c std::ifstream
-    - \c std::fstream
-    - \c std::wifstream
-    - \c std::wfstream
-
-    \tparam StreamType Class derived from \c std::basic_istream.
-*/
-   
-template <typename StreamType>
-class BasicIStreamWrapper {
-public:
-    typedef typename StreamType::char_type Ch;
-    BasicIStreamWrapper(StreamType& stream) : stream_(stream), count_(), peekBuffer_() {}
-
-    Ch Peek() const { 
-        typename StreamType::int_type c = stream_.peek();
-        return RAPIDJSON_LIKELY(c != StreamType::traits_type::eof()) ? static_cast<Ch>(c) : '\0';
-    }
-
-    Ch Take() { 
-        typename StreamType::int_type c = stream_.get();
-        if (RAPIDJSON_LIKELY(c != StreamType::traits_type::eof())) {
-            count_++;
-            return static_cast<Ch>(c);
-        }
-        else
-            return '\0';
-    }
-
-    // tellg() may return -1 when failed. So we count by ourself.
-    size_t Tell() const { return count_; }
-
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    void Put(Ch) { RAPIDJSON_ASSERT(false); }
-    void Flush() { RAPIDJSON_ASSERT(false); }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-    // For encoding detection only.
-    const Ch* Peek4() const {
-        RAPIDJSON_ASSERT(sizeof(Ch) == 1); // Only usable for byte stream.
-        int i;
-        bool hasError = false;
-        for (i = 0; i < 4; ++i) {
-            typename StreamType::int_type c = stream_.get();
-            if (c == StreamType::traits_type::eof()) {
-                hasError = true;
-                stream_.clear();
-                break;
-            }
-            peekBuffer_[i] = static_cast<Ch>(c);
-        }
-        for (--i; i >= 0; --i)
-            stream_.putback(peekBuffer_[i]);
-        return !hasError ? peekBuffer_ : 0;
-    }
-
-private:
-    BasicIStreamWrapper(const BasicIStreamWrapper&);
-    BasicIStreamWrapper& operator=(const BasicIStreamWrapper&);
-
-    StreamType& stream_;
-    size_t count_;  //!< Number of characters read. Note:
-    mutable Ch peekBuffer_[4];
-};
-
-typedef BasicIStreamWrapper<std::istream> IStreamWrapper;
-typedef BasicIStreamWrapper<std::wistream> WIStreamWrapper;
-
-#if defined(__clang__) || defined(_MSC_VER)
-RAPIDJSON_DIAG_POP
-#endif
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_ISTREAMWRAPPER_H_
diff --git a/third_party/rapidjson/memorybuffer.h b/third_party/rapidjson/memorybuffer.h
deleted file mode 100644
index 200dd1ae..00000000
--- a/third_party/rapidjson/memorybuffer.h
+++ /dev/null
@@ -1,78 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_MEMORYBUFFER_H_
-#define RAPIDJSON_MEMORYBUFFER_H_
-
-#include "rapidjson/internal/stack.h"
-#include "stream.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Represents an in-memory output byte stream.
-/*!
-    This class is mainly for being wrapped by EncodedOutputStream or
-   AutoUTFOutputStream.
-
-    It is similar to FileWriteBuffer but the destination is an in-memory buffer
-   instead of a file.
-
-    Differences between MemoryBuffer and StringBuffer:
-    1. StringBuffer has Encoding but MemoryBuffer is only a byte buffer.
-    2. StringBuffer::GetString() returns a null-terminated string.
-   MemoryBuffer::GetBuffer() returns a buffer without terminator.
-
-    \tparam Allocator type for allocating memory buffer.
-    \note implements Stream concept
-*/
-template <typename Allocator = CrtAllocator>
-struct GenericMemoryBuffer {
-  typedef char Ch;  // byte
-
-  GenericMemoryBuffer(Allocator* allocator = 0,
-                      size_t capacity = kDefaultCapacity)
-      : stack_(allocator, capacity) {}
-
-  void Put(Ch c) { *stack_.template Push<Ch>() = c; }
-  void Flush() {}
-
-  void Clear() { stack_.Clear(); }
-  void ShrinkToFit() { stack_.ShrinkToFit(); }
-  Ch* Push(size_t count) { return stack_.template Push<Ch>(count); }
-  void Pop(size_t count) { stack_.template Pop<Ch>(count); }
-
-  const Ch* GetBuffer() const { return stack_.template Bottom<Ch>(); }
-
-  size_t GetSize() const { return stack_.GetSize(); }
-
-  static const size_t kDefaultCapacity = 256;
-  mutable internal::Stack<Allocator> stack_;
-};
-
-typedef GenericMemoryBuffer<> MemoryBuffer;
-
-//! Implement specialized version of PutN() with memset() for better
-//! performance.
-template <>
-inline void PutN(MemoryBuffer& memoryBuffer, char c, size_t n) {
-  std::memset(memoryBuffer.stack_.Push<char>(n), c, n * sizeof(c));
-}
-
-RAPIDJSON_NAMESPACE_END
-
-#endif  // RAPIDJSON_MEMORYBUFFER_H_
diff --git a/third_party/rapidjson/memorystream.h b/third_party/rapidjson/memorystream.h
deleted file mode 100644
index 1d71d8a4..00000000
--- a/third_party/rapidjson/memorystream.h
+++ /dev/null
@@ -1,71 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_MEMORYSTREAM_H_
-#define RAPIDJSON_MEMORYSTREAM_H_
-
-#include "stream.h"
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(unreachable-code)
-RAPIDJSON_DIAG_OFF(missing-noreturn)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Represents an in-memory input byte stream.
-/*!
-    This class is mainly for being wrapped by EncodedInputStream or AutoUTFInputStream.
-
-    It is similar to FileReadBuffer but the source is an in-memory buffer instead of a file.
-
-    Differences between MemoryStream and StringStream:
-    1. StringStream has encoding but MemoryStream is a byte stream.
-    2. MemoryStream needs size of the source buffer and the buffer don't need to be null terminated. StringStream assume null-terminated string as source.
-    3. MemoryStream supports Peek4() for encoding detection. StringStream is specified with an encoding so it should not have Peek4().
-    \note implements Stream concept
-*/
-struct MemoryStream {
-    typedef char Ch; // byte
-
-    MemoryStream(const Ch *src, size_t size) : src_(src), begin_(src), end_(src + size), size_(size) {}
-
-    Ch Peek() const { return RAPIDJSON_UNLIKELY(src_ == end_) ? '\0' : *src_; }
-    Ch Take() { return RAPIDJSON_UNLIKELY(src_ == end_) ? '\0' : *src_++; }
-    size_t Tell() const { return static_cast<size_t>(src_ - begin_); }
-
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    void Put(Ch) { RAPIDJSON_ASSERT(false); }
-    void Flush() { RAPIDJSON_ASSERT(false); }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-    // For encoding detection only.
-    const Ch* Peek4() const {
-        return Tell() + 4 <= size_ ? src_ : 0;
-    }
-
-    const Ch* src_;     //!< Current read position.
-    const Ch* begin_;   //!< Original head of the string.
-    const Ch* end_;     //!< End of stream.
-    size_t size_;       //!< Size of the stream.
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_MEMORYBUFFER_H_
diff --git a/third_party/rapidjson/msinttypes/inttypes.h b/third_party/rapidjson/msinttypes/inttypes.h
deleted file mode 100644
index 18111286..00000000
--- a/third_party/rapidjson/msinttypes/inttypes.h
+++ /dev/null
@@ -1,316 +0,0 @@
-// ISO C9x  compliant inttypes.h for Microsoft Visual Studio
-// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
-// 
-//  Copyright (c) 2006-2013 Alexander Chemeris
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-// 
-//   1. Redistributions of source code must retain the above copyright notice,
-//      this list of conditions and the following disclaimer.
-// 
-//   2. Redistributions in binary form must reproduce the above copyright
-//      notice, this list of conditions and the following disclaimer in the
-//      documentation and/or other materials provided with the distribution.
-// 
-//   3. Neither the name of the product nor the names of its contributors may
-//      be used to endorse or promote products derived from this software
-//      without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
-// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// 
-///////////////////////////////////////////////////////////////////////////////
-
-// The above software in this distribution may have been modified by 
-// THL A29 Limited ("Tencent Modifications"). 
-// All Tencent Modifications are Copyright (C) 2015 THL A29 Limited.
-
-#ifndef _MSC_VER // [
-#error "Use this header only with Microsoft Visual C++ compilers!"
-#endif // _MSC_VER ]
-
-#ifndef _MSC_INTTYPES_H_ // [
-#define _MSC_INTTYPES_H_
-
-#if _MSC_VER > 1000
-#pragma once
-#endif
-
-#include "stdint.h"
-
-// miloyip: VC supports inttypes.h since VC2013
-#if _MSC_VER >= 1800
-#include <inttypes.h>
-#else
-
-// 7.8 Format conversion of integer types
-
-typedef struct {
-   intmax_t quot;
-   intmax_t rem;
-} imaxdiv_t;
-
-// 7.8.1 Macros for format specifiers
-
-#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [   See footnote 185 at page 198
-
-// The fprintf macros for signed integers are:
-#define PRId8       "d"
-#define PRIi8       "i"
-#define PRIdLEAST8  "d"
-#define PRIiLEAST8  "i"
-#define PRIdFAST8   "d"
-#define PRIiFAST8   "i"
-
-#define PRId16       "hd"
-#define PRIi16       "hi"
-#define PRIdLEAST16  "hd"
-#define PRIiLEAST16  "hi"
-#define PRIdFAST16   "hd"
-#define PRIiFAST16   "hi"
-
-#define PRId32       "I32d"
-#define PRIi32       "I32i"
-#define PRIdLEAST32  "I32d"
-#define PRIiLEAST32  "I32i"
-#define PRIdFAST32   "I32d"
-#define PRIiFAST32   "I32i"
-
-#define PRId64       "I64d"
-#define PRIi64       "I64i"
-#define PRIdLEAST64  "I64d"
-#define PRIiLEAST64  "I64i"
-#define PRIdFAST64   "I64d"
-#define PRIiFAST64   "I64i"
-
-#define PRIdMAX     "I64d"
-#define PRIiMAX     "I64i"
-
-#define PRIdPTR     "Id"
-#define PRIiPTR     "Ii"
-
-// The fprintf macros for unsigned integers are:
-#define PRIo8       "o"
-#define PRIu8       "u"
-#define PRIx8       "x"
-#define PRIX8       "X"
-#define PRIoLEAST8  "o"
-#define PRIuLEAST8  "u"
-#define PRIxLEAST8  "x"
-#define PRIXLEAST8  "X"
-#define PRIoFAST8   "o"
-#define PRIuFAST8   "u"
-#define PRIxFAST8   "x"
-#define PRIXFAST8   "X"
-
-#define PRIo16       "ho"
-#define PRIu16       "hu"
-#define PRIx16       "hx"
-#define PRIX16       "hX"
-#define PRIoLEAST16  "ho"
-#define PRIuLEAST16  "hu"
-#define PRIxLEAST16  "hx"
-#define PRIXLEAST16  "hX"
-#define PRIoFAST16   "ho"
-#define PRIuFAST16   "hu"
-#define PRIxFAST16   "hx"
-#define PRIXFAST16   "hX"
-
-#define PRIo32       "I32o"
-#define PRIu32       "I32u"
-#define PRIx32       "I32x"
-#define PRIX32       "I32X"
-#define PRIoLEAST32  "I32o"
-#define PRIuLEAST32  "I32u"
-#define PRIxLEAST32  "I32x"
-#define PRIXLEAST32  "I32X"
-#define PRIoFAST32   "I32o"
-#define PRIuFAST32   "I32u"
-#define PRIxFAST32   "I32x"
-#define PRIXFAST32   "I32X"
-
-#define PRIo64       "I64o"
-#define PRIu64       "I64u"
-#define PRIx64       "I64x"
-#define PRIX64       "I64X"
-#define PRIoLEAST64  "I64o"
-#define PRIuLEAST64  "I64u"
-#define PRIxLEAST64  "I64x"
-#define PRIXLEAST64  "I64X"
-#define PRIoFAST64   "I64o"
-#define PRIuFAST64   "I64u"
-#define PRIxFAST64   "I64x"
-#define PRIXFAST64   "I64X"
-
-#define PRIoMAX     "I64o"
-#define PRIuMAX     "I64u"
-#define PRIxMAX     "I64x"
-#define PRIXMAX     "I64X"
-
-#define PRIoPTR     "Io"
-#define PRIuPTR     "Iu"
-#define PRIxPTR     "Ix"
-#define PRIXPTR     "IX"
-
-// The fscanf macros for signed integers are:
-#define SCNd8       "d"
-#define SCNi8       "i"
-#define SCNdLEAST8  "d"
-#define SCNiLEAST8  "i"
-#define SCNdFAST8   "d"
-#define SCNiFAST8   "i"
-
-#define SCNd16       "hd"
-#define SCNi16       "hi"
-#define SCNdLEAST16  "hd"
-#define SCNiLEAST16  "hi"
-#define SCNdFAST16   "hd"
-#define SCNiFAST16   "hi"
-
-#define SCNd32       "ld"
-#define SCNi32       "li"
-#define SCNdLEAST32  "ld"
-#define SCNiLEAST32  "li"
-#define SCNdFAST32   "ld"
-#define SCNiFAST32   "li"
-
-#define SCNd64       "I64d"
-#define SCNi64       "I64i"
-#define SCNdLEAST64  "I64d"
-#define SCNiLEAST64  "I64i"
-#define SCNdFAST64   "I64d"
-#define SCNiFAST64   "I64i"
-
-#define SCNdMAX     "I64d"
-#define SCNiMAX     "I64i"
-
-#ifdef _WIN64 // [
-#  define SCNdPTR     "I64d"
-#  define SCNiPTR     "I64i"
-#else  // _WIN64 ][
-#  define SCNdPTR     "ld"
-#  define SCNiPTR     "li"
-#endif  // _WIN64 ]
-
-// The fscanf macros for unsigned integers are:
-#define SCNo8       "o"
-#define SCNu8       "u"
-#define SCNx8       "x"
-#define SCNX8       "X"
-#define SCNoLEAST8  "o"
-#define SCNuLEAST8  "u"
-#define SCNxLEAST8  "x"
-#define SCNXLEAST8  "X"
-#define SCNoFAST8   "o"
-#define SCNuFAST8   "u"
-#define SCNxFAST8   "x"
-#define SCNXFAST8   "X"
-
-#define SCNo16       "ho"
-#define SCNu16       "hu"
-#define SCNx16       "hx"
-#define SCNX16       "hX"
-#define SCNoLEAST16  "ho"
-#define SCNuLEAST16  "hu"
-#define SCNxLEAST16  "hx"
-#define SCNXLEAST16  "hX"
-#define SCNoFAST16   "ho"
-#define SCNuFAST16   "hu"
-#define SCNxFAST16   "hx"
-#define SCNXFAST16   "hX"
-
-#define SCNo32       "lo"
-#define SCNu32       "lu"
-#define SCNx32       "lx"
-#define SCNX32       "lX"
-#define SCNoLEAST32  "lo"
-#define SCNuLEAST32  "lu"
-#define SCNxLEAST32  "lx"
-#define SCNXLEAST32  "lX"
-#define SCNoFAST32   "lo"
-#define SCNuFAST32   "lu"
-#define SCNxFAST32   "lx"
-#define SCNXFAST32   "lX"
-
-#define SCNo64       "I64o"
-#define SCNu64       "I64u"
-#define SCNx64       "I64x"
-#define SCNX64       "I64X"
-#define SCNoLEAST64  "I64o"
-#define SCNuLEAST64  "I64u"
-#define SCNxLEAST64  "I64x"
-#define SCNXLEAST64  "I64X"
-#define SCNoFAST64   "I64o"
-#define SCNuFAST64   "I64u"
-#define SCNxFAST64   "I64x"
-#define SCNXFAST64   "I64X"
-
-#define SCNoMAX     "I64o"
-#define SCNuMAX     "I64u"
-#define SCNxMAX     "I64x"
-#define SCNXMAX     "I64X"
-
-#ifdef _WIN64 // [
-#  define SCNoPTR     "I64o"
-#  define SCNuPTR     "I64u"
-#  define SCNxPTR     "I64x"
-#  define SCNXPTR     "I64X"
-#else  // _WIN64 ][
-#  define SCNoPTR     "lo"
-#  define SCNuPTR     "lu"
-#  define SCNxPTR     "lx"
-#  define SCNXPTR     "lX"
-#endif  // _WIN64 ]
-
-#endif // __STDC_FORMAT_MACROS ]
-
-// 7.8.2 Functions for greatest-width integer types
-
-// 7.8.2.1 The imaxabs function
-#define imaxabs _abs64
-
-// 7.8.2.2 The imaxdiv function
-
-// This is modified version of div() function from Microsoft's div.c found
-// in %MSVC.NET%\crt\src\div.c
-#ifdef STATIC_IMAXDIV // [
-static
-#else // STATIC_IMAXDIV ][
-_inline
-#endif // STATIC_IMAXDIV ]
-imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom)
-{
-   imaxdiv_t result;
-
-   result.quot = numer / denom;
-   result.rem = numer % denom;
-
-   if (numer < 0 && result.rem > 0) {
-      // did division wrong; must fix up
-      ++result.quot;
-      result.rem -= denom;
-   }
-
-   return result;
-}
-
-// 7.8.2.3 The strtoimax and strtoumax functions
-#define strtoimax _strtoi64
-#define strtoumax _strtoui64
-
-// 7.8.2.4 The wcstoimax and wcstoumax functions
-#define wcstoimax _wcstoi64
-#define wcstoumax _wcstoui64
-
-#endif // _MSC_VER >= 1800
-
-#endif // _MSC_INTTYPES_H_ ]
diff --git a/third_party/rapidjson/msinttypes/stdint.h b/third_party/rapidjson/msinttypes/stdint.h
deleted file mode 100644
index 3d4477b9..00000000
--- a/third_party/rapidjson/msinttypes/stdint.h
+++ /dev/null
@@ -1,300 +0,0 @@
-// ISO C9x  compliant stdint.h for Microsoft Visual Studio
-// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
-// 
-//  Copyright (c) 2006-2013 Alexander Chemeris
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-// 
-//   1. Redistributions of source code must retain the above copyright notice,
-//      this list of conditions and the following disclaimer.
-// 
-//   2. Redistributions in binary form must reproduce the above copyright
-//      notice, this list of conditions and the following disclaimer in the
-//      documentation and/or other materials provided with the distribution.
-// 
-//   3. Neither the name of the product nor the names of its contributors may
-//      be used to endorse or promote products derived from this software
-//      without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
-// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// 
-///////////////////////////////////////////////////////////////////////////////
-
-// The above software in this distribution may have been modified by 
-// THL A29 Limited ("Tencent Modifications"). 
-// All Tencent Modifications are Copyright (C) 2015 THL A29 Limited.
-
-#ifndef _MSC_VER // [
-#error "Use this header only with Microsoft Visual C++ compilers!"
-#endif // _MSC_VER ]
-
-#ifndef _MSC_STDINT_H_ // [
-#define _MSC_STDINT_H_
-
-#if _MSC_VER > 1000
-#pragma once
-#endif
-
-// miloyip: Originally Visual Studio 2010 uses its own stdint.h. However it generates warning with INT64_C(), so change to use this file for vs2010.
-#if _MSC_VER >= 1600 // [
-#include <stdint.h>
-
-#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [   See footnote 224 at page 260
-
-#undef INT8_C
-#undef INT16_C
-#undef INT32_C
-#undef INT64_C
-#undef UINT8_C
-#undef UINT16_C
-#undef UINT32_C
-#undef UINT64_C
-
-// 7.18.4.1 Macros for minimum-width integer constants
-
-#define INT8_C(val)  val##i8
-#define INT16_C(val) val##i16
-#define INT32_C(val) val##i32
-#define INT64_C(val) val##i64
-
-#define UINT8_C(val)  val##ui8
-#define UINT16_C(val) val##ui16
-#define UINT32_C(val) val##ui32
-#define UINT64_C(val) val##ui64
-
-// 7.18.4.2 Macros for greatest-width integer constants
-// These #ifndef's are needed to prevent collisions with <boost/cstdint.hpp>.
-// Check out Issue 9 for the details.
-#ifndef INTMAX_C //   [
-#  define INTMAX_C   INT64_C
-#endif // INTMAX_C    ]
-#ifndef UINTMAX_C //  [
-#  define UINTMAX_C  UINT64_C
-#endif // UINTMAX_C   ]
-
-#endif // __STDC_CONSTANT_MACROS ]
-
-#else // ] _MSC_VER >= 1700 [
-
-#include <limits.h>
-
-// For Visual Studio 6 in C++ mode and for many Visual Studio versions when
-// compiling for ARM we have to wrap <wchar.h> include with 'extern "C++" {}'
-// or compiler would give many errors like this:
-//   error C2733: second C linkage of overloaded function 'wmemchr' not allowed
-#if defined(__cplusplus) && !defined(_M_ARM)
-extern "C" {
-#endif
-#  include <wchar.h>
-#if defined(__cplusplus) && !defined(_M_ARM)
-}
-#endif
-
-// Define _W64 macros to mark types changing their size, like intptr_t.
-#ifndef _W64
-#  if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
-#     define _W64 __w64
-#  else
-#     define _W64
-#  endif
-#endif
-
-
-// 7.18.1 Integer types
-
-// 7.18.1.1 Exact-width integer types
-
-// Visual Studio 6 and Embedded Visual C++ 4 doesn't
-// realize that, e.g. char has the same size as __int8
-// so we give up on __intX for them.
-#if (_MSC_VER < 1300)
-   typedef signed char       int8_t;
-   typedef signed short      int16_t;
-   typedef signed int        int32_t;
-   typedef unsigned char     uint8_t;
-   typedef unsigned short    uint16_t;
-   typedef unsigned int      uint32_t;
-#else
-   typedef signed __int8     int8_t;
-   typedef signed __int16    int16_t;
-   typedef signed __int32    int32_t;
-   typedef unsigned __int8   uint8_t;
-   typedef unsigned __int16  uint16_t;
-   typedef unsigned __int32  uint32_t;
-#endif
-typedef signed __int64       int64_t;
-typedef unsigned __int64     uint64_t;
-
-
-// 7.18.1.2 Minimum-width integer types
-typedef int8_t    int_least8_t;
-typedef int16_t   int_least16_t;
-typedef int32_t   int_least32_t;
-typedef int64_t   int_least64_t;
-typedef uint8_t   uint_least8_t;
-typedef uint16_t  uint_least16_t;
-typedef uint32_t  uint_least32_t;
-typedef uint64_t  uint_least64_t;
-
-// 7.18.1.3 Fastest minimum-width integer types
-typedef int8_t    int_fast8_t;
-typedef int16_t   int_fast16_t;
-typedef int32_t   int_fast32_t;
-typedef int64_t   int_fast64_t;
-typedef uint8_t   uint_fast8_t;
-typedef uint16_t  uint_fast16_t;
-typedef uint32_t  uint_fast32_t;
-typedef uint64_t  uint_fast64_t;
-
-// 7.18.1.4 Integer types capable of holding object pointers
-#ifdef _WIN64 // [
-   typedef signed __int64    intptr_t;
-   typedef unsigned __int64  uintptr_t;
-#else // _WIN64 ][
-   typedef _W64 signed int   intptr_t;
-   typedef _W64 unsigned int uintptr_t;
-#endif // _WIN64 ]
-
-// 7.18.1.5 Greatest-width integer types
-typedef int64_t   intmax_t;
-typedef uint64_t  uintmax_t;
-
-
-// 7.18.2 Limits of specified-width integer types
-
-#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [   See footnote 220 at page 257 and footnote 221 at page 259
-
-// 7.18.2.1 Limits of exact-width integer types
-#define INT8_MIN     ((int8_t)_I8_MIN)
-#define INT8_MAX     _I8_MAX
-#define INT16_MIN    ((int16_t)_I16_MIN)
-#define INT16_MAX    _I16_MAX
-#define INT32_MIN    ((int32_t)_I32_MIN)
-#define INT32_MAX    _I32_MAX
-#define INT64_MIN    ((int64_t)_I64_MIN)
-#define INT64_MAX    _I64_MAX
-#define UINT8_MAX    _UI8_MAX
-#define UINT16_MAX   _UI16_MAX
-#define UINT32_MAX   _UI32_MAX
-#define UINT64_MAX   _UI64_MAX
-
-// 7.18.2.2 Limits of minimum-width integer types
-#define INT_LEAST8_MIN    INT8_MIN
-#define INT_LEAST8_MAX    INT8_MAX
-#define INT_LEAST16_MIN   INT16_MIN
-#define INT_LEAST16_MAX   INT16_MAX
-#define INT_LEAST32_MIN   INT32_MIN
-#define INT_LEAST32_MAX   INT32_MAX
-#define INT_LEAST64_MIN   INT64_MIN
-#define INT_LEAST64_MAX   INT64_MAX
-#define UINT_LEAST8_MAX   UINT8_MAX
-#define UINT_LEAST16_MAX  UINT16_MAX
-#define UINT_LEAST32_MAX  UINT32_MAX
-#define UINT_LEAST64_MAX  UINT64_MAX
-
-// 7.18.2.3 Limits of fastest minimum-width integer types
-#define INT_FAST8_MIN    INT8_MIN
-#define INT_FAST8_MAX    INT8_MAX
-#define INT_FAST16_MIN   INT16_MIN
-#define INT_FAST16_MAX   INT16_MAX
-#define INT_FAST32_MIN   INT32_MIN
-#define INT_FAST32_MAX   INT32_MAX
-#define INT_FAST64_MIN   INT64_MIN
-#define INT_FAST64_MAX   INT64_MAX
-#define UINT_FAST8_MAX   UINT8_MAX
-#define UINT_FAST16_MAX  UINT16_MAX
-#define UINT_FAST32_MAX  UINT32_MAX
-#define UINT_FAST64_MAX  UINT64_MAX
-
-// 7.18.2.4 Limits of integer types capable of holding object pointers
-#ifdef _WIN64 // [
-#  define INTPTR_MIN   INT64_MIN
-#  define INTPTR_MAX   INT64_MAX
-#  define UINTPTR_MAX  UINT64_MAX
-#else // _WIN64 ][
-#  define INTPTR_MIN   INT32_MIN
-#  define INTPTR_MAX   INT32_MAX
-#  define UINTPTR_MAX  UINT32_MAX
-#endif // _WIN64 ]
-
-// 7.18.2.5 Limits of greatest-width integer types
-#define INTMAX_MIN   INT64_MIN
-#define INTMAX_MAX   INT64_MAX
-#define UINTMAX_MAX  UINT64_MAX
-
-// 7.18.3 Limits of other integer types
-
-#ifdef _WIN64 // [
-#  define PTRDIFF_MIN  _I64_MIN
-#  define PTRDIFF_MAX  _I64_MAX
-#else  // _WIN64 ][
-#  define PTRDIFF_MIN  _I32_MIN
-#  define PTRDIFF_MAX  _I32_MAX
-#endif  // _WIN64 ]
-
-#define SIG_ATOMIC_MIN  INT_MIN
-#define SIG_ATOMIC_MAX  INT_MAX
-
-#ifndef SIZE_MAX // [
-#  ifdef _WIN64 // [
-#     define SIZE_MAX  _UI64_MAX
-#  else // _WIN64 ][
-#     define SIZE_MAX  _UI32_MAX
-#  endif // _WIN64 ]
-#endif // SIZE_MAX ]
-
-// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
-#ifndef WCHAR_MIN // [
-#  define WCHAR_MIN  0
-#endif  // WCHAR_MIN ]
-#ifndef WCHAR_MAX // [
-#  define WCHAR_MAX  _UI16_MAX
-#endif  // WCHAR_MAX ]
-
-#define WINT_MIN  0
-#define WINT_MAX  _UI16_MAX
-
-#endif // __STDC_LIMIT_MACROS ]
-
-
-// 7.18.4 Limits of other integer types
-
-#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [   See footnote 224 at page 260
-
-// 7.18.4.1 Macros for minimum-width integer constants
-
-#define INT8_C(val)  val##i8
-#define INT16_C(val) val##i16
-#define INT32_C(val) val##i32
-#define INT64_C(val) val##i64
-
-#define UINT8_C(val)  val##ui8
-#define UINT16_C(val) val##ui16
-#define UINT32_C(val) val##ui32
-#define UINT64_C(val) val##ui64
-
-// 7.18.4.2 Macros for greatest-width integer constants
-// These #ifndef's are needed to prevent collisions with <boost/cstdint.hpp>.
-// Check out Issue 9 for the details.
-#ifndef INTMAX_C //   [
-#  define INTMAX_C   INT64_C
-#endif // INTMAX_C    ]
-#ifndef UINTMAX_C //  [
-#  define UINTMAX_C  UINT64_C
-#endif // UINTMAX_C   ]
-
-#endif // __STDC_CONSTANT_MACROS ]
-
-#endif // _MSC_VER >= 1600 ]
-
-#endif // _MSC_STDINT_H_ ]
diff --git a/third_party/rapidjson/ostreamwrapper.h b/third_party/rapidjson/ostreamwrapper.h
deleted file mode 100644
index 6f4667c0..00000000
--- a/third_party/rapidjson/ostreamwrapper.h
+++ /dev/null
@@ -1,81 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_OSTREAMWRAPPER_H_
-#define RAPIDJSON_OSTREAMWRAPPER_H_
-
-#include "stream.h"
-#include <iosfwd>
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Wrapper of \c std::basic_ostream into RapidJSON's Stream concept.
-/*!
-    The classes can be wrapped including but not limited to:
-
-    - \c std::ostringstream
-    - \c std::stringstream
-    - \c std::wpstringstream
-    - \c std::wstringstream
-    - \c std::ifstream
-    - \c std::fstream
-    - \c std::wofstream
-    - \c std::wfstream
-
-    \tparam StreamType Class derived from \c std::basic_ostream.
-*/
-   
-template <typename StreamType>
-class BasicOStreamWrapper {
-public:
-    typedef typename StreamType::char_type Ch;
-    BasicOStreamWrapper(StreamType& stream) : stream_(stream) {}
-
-    void Put(Ch c) {
-        stream_.put(c);
-    }
-
-    void Flush() {
-        stream_.flush();
-    }
-
-    // Not implemented
-    char Peek() const { RAPIDJSON_ASSERT(false); return 0; }
-    char Take() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
-    char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
-    BasicOStreamWrapper(const BasicOStreamWrapper&);
-    BasicOStreamWrapper& operator=(const BasicOStreamWrapper&);
-
-    StreamType& stream_;
-};
-
-typedef BasicOStreamWrapper<std::ostream> OStreamWrapper;
-typedef BasicOStreamWrapper<std::wostream> WOStreamWrapper;
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_OSTREAMWRAPPER_H_
diff --git a/third_party/rapidjson/pointer.h b/third_party/rapidjson/pointer.h
deleted file mode 100644
index ad401606..00000000
--- a/third_party/rapidjson/pointer.h
+++ /dev/null
@@ -1,1716 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_POINTER_H_
-#define RAPIDJSON_POINTER_H_
-
-#include "document.h"
-#include "rapidjson/internal/itoa.h"
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(switch - enum)
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4512)  // assignment operator could not be generated
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-static const SizeType kPointerInvalidIndex =
-    ~SizeType(0);  //!< Represents an invalid index in GenericPointer::Token
-
-//! Error code of parsing.
-/*! \ingroup RAPIDJSON_ERRORS
-    \see GenericPointer::GenericPointer, GenericPointer::GetParseErrorCode
-*/
-enum PointerParseErrorCode {
-  kPointerParseErrorNone = 0,  //!< The parse is successful
-
-  kPointerParseErrorTokenMustBeginWithSolidus,  //!< A token must begin with a
-                                                //!< '/'
-  kPointerParseErrorInvalidEscape,              //!< Invalid escape
-  kPointerParseErrorInvalidPercentEncoding,     //!< Invalid percent encoding in
-                                                //!< URI fragment
-  kPointerParseErrorCharacterMustPercentEncode  //!< A character must percent
-                                                //!< encoded in URI fragment
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericPointer
-
-//! Represents a JSON Pointer. Use Pointer for UTF8 encoding and default
-//! allocator.
-/*!
-    This class implements RFC 6901 "JavaScript Object Notation (JSON) Pointer"
-    (https://tools.ietf.org/html/rfc6901).
-
-    A JSON pointer is for identifying a specific value in a JSON document
-    (GenericDocument). It can simplify coding of DOM tree manipulation, because
-   it can access multiple-level depth of DOM tree with single API call.
-
-    After it parses a string representation (e.g. "/foo/0" or URI fragment
-    representation (e.g. "#/foo/0") into its internal representation (tokens),
-    it can be used to resolve a specific value in multiple documents, or
-   sub-tree of documents.
-
-    Contrary to GenericValue, Pointer can be copy constructed and copy assigned.
-    Apart from assignment, a Pointer cannot be modified after construction.
-
-    Although Pointer is very convenient, please aware that constructing Pointer
-    involves parsing and dynamic memory allocation. A special constructor with
-   user- supplied tokens eliminates these.
-
-    GenericPointer depends on GenericDocument and GenericValue.
-
-    \tparam ValueType The value type of the DOM tree. E.g. GenericValue<UTF8<> >
-    \tparam Allocator The allocator type for allocating memory for internal
-   representation.
-
-    \note GenericPointer uses same encoding of ValueType.
-    However, Allocator of GenericPointer is independent of Allocator of Value.
-*/
-template <typename ValueType, typename Allocator = CrtAllocator>
-class GenericPointer {
- public:
-  typedef typename ValueType::EncodingType
-      EncodingType;                   //!< Encoding type from Value
-  typedef typename ValueType::Ch Ch;  //!< Character type from Value
-
-  //! A token is the basic units of internal representation.
-  /*!
-      A JSON pointer string representation "/foo/123" is parsed to two tokens:
-      "foo" and 123. 123 will be represented in both numeric form and string
-     form. They are resolved according to the actual value type (object or
-     array).
-
-      For token that are not numbers, or the numeric value is out of bound
-      (greater than limits of SizeType), they are only treated as string form
-      (i.e. the token's index will be equal to kPointerInvalidIndex).
-
-      This struct is public so that user can create a Pointer without parsing
-     and allocation, using a special constructor.
-  */
-  struct Token {
-    const Ch* name;   //!< Name of the token. It has null character at the end
-                      //!< but it can contain null character.
-    SizeType length;  //!< Length of the name.
-    SizeType index;   //!< A valid array index, if it is not equal to
-                      //!< kPointerInvalidIndex.
-  };
-
-  //!@name Constructors and destructor.
-  //@{
-
-  //! Default constructor.
-  GenericPointer(Allocator* allocator = 0)
-      : allocator_(allocator),
-        ownAllocator_(),
-        nameBuffer_(),
-        tokens_(),
-        tokenCount_(),
-        parseErrorOffset_(),
-        parseErrorCode_(kPointerParseErrorNone) {}
-
-  //! Constructor that parses a string or URI fragment representation.
-  /*!
-      \param source A null-terminated, string or URI fragment representation of
-     JSON pointer. \param allocator User supplied allocator for this pointer. If
-     no allocator is provided, it creates a self-owned one.
-  */
-  explicit GenericPointer(const Ch* source, Allocator* allocator = 0)
-      : allocator_(allocator),
-        ownAllocator_(),
-        nameBuffer_(),
-        tokens_(),
-        tokenCount_(),
-        parseErrorOffset_(),
-        parseErrorCode_(kPointerParseErrorNone) {
-    Parse(source, internal::StrLen(source));
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Constructor that parses a string or URI fragment representation.
-  /*!
-      \param source A string or URI fragment representation of JSON pointer.
-      \param allocator User supplied allocator for this pointer. If no allocator
-     is provided, it creates a self-owned one. \note Requires the definition of
-     the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING.
-  */
-  explicit GenericPointer(const std::basic_string<Ch>& source,
-                          Allocator* allocator = 0)
-      : allocator_(allocator),
-        ownAllocator_(),
-        nameBuffer_(),
-        tokens_(),
-        tokenCount_(),
-        parseErrorOffset_(),
-        parseErrorCode_(kPointerParseErrorNone) {
-    Parse(source.c_str(), source.size());
-  }
-#endif
-
-  //! Constructor that parses a string or URI fragment representation, with
-  //! length of the source string.
-  /*!
-      \param source A string or URI fragment representation of JSON pointer.
-      \param length Length of source.
-      \param allocator User supplied allocator for this pointer. If no allocator
-     is provided, it creates a self-owned one. \note Slightly faster than the
-     overload without length.
-  */
-  GenericPointer(const Ch* source, size_t length, Allocator* allocator = 0)
-      : allocator_(allocator),
-        ownAllocator_(),
-        nameBuffer_(),
-        tokens_(),
-        tokenCount_(),
-        parseErrorOffset_(),
-        parseErrorCode_(kPointerParseErrorNone) {
-    Parse(source, length);
-  }
-
-  //! Constructor with user-supplied tokens.
-  /*!
-      This constructor let user supplies const array of tokens.
-      This prevents the parsing process and eliminates allocation.
-      This is preferred for memory constrained environments.
-
-      \param tokens An constant array of tokens representing the JSON pointer.
-      \param tokenCount Number of tokens.
-
-      \b Example
-      \code
-      #define NAME(s) { s, sizeof(s) / sizeof(s[0]) - 1, kPointerInvalidIndex }
-      #define INDEX(i) { #i, sizeof(#i) - 1, i }
-
-      static const Pointer::Token kTokens[] = { NAME("foo"), INDEX(123) };
-      static const Pointer p(kTokens, sizeof(kTokens) / sizeof(kTokens[0]));
-      // Equivalent to static const Pointer p("/foo/123");
-
-      #undef NAME
-      #undef INDEX
-      \endcode
-  */
-  GenericPointer(const Token* tokens, size_t tokenCount)
-      : allocator_(),
-        ownAllocator_(),
-        nameBuffer_(),
-        tokens_(const_cast<Token*>(tokens)),
-        tokenCount_(tokenCount),
-        parseErrorOffset_(),
-        parseErrorCode_(kPointerParseErrorNone) {}
-
-  //! Copy constructor.
-  GenericPointer(const GenericPointer& rhs, Allocator* allocator = 0)
-      : allocator_(allocator),
-        ownAllocator_(),
-        nameBuffer_(),
-        tokens_(),
-        tokenCount_(),
-        parseErrorOffset_(),
-        parseErrorCode_(kPointerParseErrorNone) {
-    *this = rhs;
-  }
-
-  //! Destructor.
-  ~GenericPointer() {
-    if (nameBuffer_)  // If user-supplied tokens constructor is used,
-                      // nameBuffer_ is nullptr and tokens_ are not deallocated.
-      Allocator::Free(tokens_);
-    RAPIDJSON_DELETE(ownAllocator_);
-  }
-
-  //! Assignment operator.
-  GenericPointer& operator=(const GenericPointer& rhs) {
-    if (this != &rhs) {
-      // Do not delete ownAllcator
-      if (nameBuffer_)
-        Allocator::Free(tokens_);
-
-      tokenCount_ = rhs.tokenCount_;
-      parseErrorOffset_ = rhs.parseErrorOffset_;
-      parseErrorCode_ = rhs.parseErrorCode_;
-
-      if (rhs.nameBuffer_)
-        CopyFromRaw(rhs);  // Normally parsed tokens.
-      else {
-        tokens_ = rhs.tokens_;  // User supplied const tokens.
-        nameBuffer_ = 0;
-      }
-    }
-    return *this;
-  }
-
-  //@}
-
-  //!@name Append token
-  //@{
-
-  //! Append a token and return a new Pointer
-  /*!
-      \param token Token to be appended.
-      \param allocator Allocator for the newly return Pointer.
-      \return A new Pointer with appended token.
-  */
-  GenericPointer Append(const Token& token, Allocator* allocator = 0) const {
-    GenericPointer r;
-    r.allocator_ = allocator;
-    Ch* p = r.CopyFromRaw(*this, 1, token.length + 1);
-    std::memcpy(p, token.name, (token.length + 1) * sizeof(Ch));
-    r.tokens_[tokenCount_].name = p;
-    r.tokens_[tokenCount_].length = token.length;
-    r.tokens_[tokenCount_].index = token.index;
-    return r;
-  }
-
-  //! Append a name token with length, and return a new Pointer
-  /*!
-      \param name Name to be appended.
-      \param length Length of name.
-      \param allocator Allocator for the newly return Pointer.
-      \return A new Pointer with appended token.
-  */
-  GenericPointer Append(const Ch* name,
-                        SizeType length,
-                        Allocator* allocator = 0) const {
-    Token token = {name, length, kPointerInvalidIndex};
-    return Append(token, allocator);
-  }
-
-  //! Append a name token without length, and return a new Pointer
-  /*!
-      \param name Name (const Ch*) to be appended.
-      \param allocator Allocator for the newly return Pointer.
-      \return A new Pointer with appended token.
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::NotExpr<
-          internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >),
-      (GenericPointer))
-  Append(T* name, Allocator* allocator = 0) const {
-    return Append(name, StrLen(name), allocator);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Append a name token, and return a new Pointer
-  /*!
-      \param name Name to be appended.
-      \param allocator Allocator for the newly return Pointer.
-      \return A new Pointer with appended token.
-  */
-  GenericPointer Append(const std::basic_string<Ch>& name,
-                        Allocator* allocator = 0) const {
-    return Append(name.c_str(), static_cast<SizeType>(name.size()), allocator);
-  }
-#endif
-
-  //! Append a index token, and return a new Pointer
-  /*!
-      \param index Index to be appended.
-      \param allocator Allocator for the newly return Pointer.
-      \return A new Pointer with appended token.
-  */
-  GenericPointer Append(SizeType index, Allocator* allocator = 0) const {
-    char buffer[21];
-    char* end = sizeof(SizeType) == 4 ? internal::u32toa(index, buffer)
-                                      : internal::u64toa(index, buffer);
-    SizeType length = static_cast<SizeType>(end - buffer);
-    buffer[length] = '\0';
-
-    if (sizeof(Ch) == 1) {
-      Token token = {reinterpret_cast<Ch*>(buffer), length, index};
-      return Append(token, allocator);
-    } else {
-      Ch name[21];
-      for (size_t i = 0; i <= length; i++)
-        name[i] = buffer[i];
-      Token token = {name, length, index};
-      return Append(token, allocator);
-    }
-  }
-
-  //! Append a token by value, and return a new Pointer
-  /*!
-      \param token token to be appended.
-      \param allocator Allocator for the newly return Pointer.
-      \return A new Pointer with appended token.
-  */
-  GenericPointer Append(const ValueType& token,
-                        Allocator* allocator = 0) const {
-    if (token.IsString())
-      return Append(token.GetString(), token.GetStringLength(), allocator);
-    else {
-      RAPIDJSON_ASSERT(token.IsUint64());
-      RAPIDJSON_ASSERT(token.GetUint64() <= SizeType(~0));
-      return Append(static_cast<SizeType>(token.GetUint64()), allocator);
-    }
-  }
-
-  //!@name Handling Parse Error
-  //@{
-
-  //! Check whether this is a valid pointer.
-  bool IsValid() const { return parseErrorCode_ == kPointerParseErrorNone; }
-
-  //! Get the parsing error offset in code unit.
-  size_t GetParseErrorOffset() const { return parseErrorOffset_; }
-
-  //! Get the parsing error code.
-  PointerParseErrorCode GetParseErrorCode() const { return parseErrorCode_; }
-
-  //@}
-
-  //! Get the allocator of this pointer.
-  Allocator& GetAllocator() { return *allocator_; }
-
-  //!@name Tokens
-  //@{
-
-  //! Get the token array (const version only).
-  const Token* GetTokens() const { return tokens_; }
-
-  //! Get the number of tokens.
-  size_t GetTokenCount() const { return tokenCount_; }
-
-  //@}
-
-  //!@name Equality/inequality operators
-  //@{
-
-  //! Equality operator.
-  /*!
-      \note When any pointers are invalid, always returns false.
-  */
-  bool operator==(const GenericPointer& rhs) const {
-    if (!IsValid() || !rhs.IsValid() || tokenCount_ != rhs.tokenCount_)
-      return false;
-
-    for (size_t i = 0; i < tokenCount_; i++) {
-      if (tokens_[i].index != rhs.tokens_[i].index ||
-          tokens_[i].length != rhs.tokens_[i].length ||
-          (tokens_[i].length != 0 &&
-           std::memcmp(tokens_[i].name, rhs.tokens_[i].name,
-                       sizeof(Ch) * tokens_[i].length) != 0)) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  //! Inequality operator.
-  /*!
-      \note When any pointers are invalid, always returns true.
-  */
-  bool operator!=(const GenericPointer& rhs) const { return !(*this == rhs); }
-
-  //@}
-
-  //!@name Stringify
-  //@{
-
-  //! Stringify the pointer into string representation.
-  /*!
-      \tparam OutputStream Type of output stream.
-      \param os The output stream.
-  */
-  template <typename OutputStream>
-  bool Stringify(OutputStream& os) const {
-    return Stringify<false, OutputStream>(os);
-  }
-
-  //! Stringify the pointer into URI fragment representation.
-  /*!
-      \tparam OutputStream Type of output stream.
-      \param os The output stream.
-  */
-  template <typename OutputStream>
-  bool StringifyUriFragment(OutputStream& os) const {
-    return Stringify<true, OutputStream>(os);
-  }
-
-  //@}
-
-  //!@name Create value
-  //@{
-
-  //! Create a value in a subtree.
-  /*!
-      If the value is not exist, it creates all parent values and a JSON Null
-     value. So it always succeed and return the newly created or existing value.
-
-      Remind that it may change types of parents according to tokens, so it
-      potentially removes previously stored values. For example, if a document
-      was an array, and "/foo" is used to create a value, then the document
-      will be changed to an object, and all existing array elements are lost.
-
-      \param root Root value of a DOM subtree to be resolved. It can be any
-     value other than document root. \param allocator Allocator for creating the
-     values if the specified value or its parents are not exist. \param
-     alreadyExist If non-null, it stores whether the resolved value is already
-     exist. \return The resolved newly created (a JSON Null value), or already
-     exists value.
-  */
-  ValueType& Create(ValueType& root,
-                    typename ValueType::AllocatorType& allocator,
-                    bool* alreadyExist = 0) const {
-    RAPIDJSON_ASSERT(IsValid());
-    ValueType* v = &root;
-    bool exist = true;
-    for (const Token* t = tokens_; t != tokens_ + tokenCount_; ++t) {
-      if (v->IsArray() && t->name[0] == '-' && t->length == 1) {
-        v->PushBack(ValueType().Move(), allocator);
-        v = &((*v)[v->Size() - 1]);
-        exist = false;
-      } else {
-        if (t->index == kPointerInvalidIndex) {  // must be object name
-          if (!v->IsObject())
-            v->SetObject();  // Change to Object
-        } else {             // object name or array index
-          if (!v->IsArray() && !v->IsObject())
-            v->SetArray();  // Change to Array
-        }
-
-        if (v->IsArray()) {
-          if (t->index >= v->Size()) {
-            v->Reserve(t->index + 1, allocator);
-            while (t->index >= v->Size())
-              v->PushBack(ValueType().Move(), allocator);
-            exist = false;
-          }
-          v = &((*v)[t->index]);
-        } else {
-          typename ValueType::MemberIterator m =
-              v->FindMember(GenericStringRef<Ch>(t->name, t->length));
-          if (m == v->MemberEnd()) {
-            v->AddMember(ValueType(t->name, t->length, allocator).Move(),
-                         ValueType().Move(), allocator);
-            v = &(--v->MemberEnd())
-                     ->value;  // Assumes AddMember() appends at the end
-            exist = false;
-          } else
-            v = &m->value;
-        }
-      }
-    }
-
-    if (alreadyExist)
-      *alreadyExist = exist;
-
-    return *v;
-  }
-
-  //! Creates a value in a document.
-  /*!
-      \param document A document to be resolved.
-      \param alreadyExist If non-null, it stores whether the resolved value is
-     already exist. \return The resolved newly created, or already exists value.
-  */
-  template <typename stackAllocator>
-  ValueType& Create(GenericDocument<EncodingType,
-                                    typename ValueType::AllocatorType,
-                                    stackAllocator>& document,
-                    bool* alreadyExist = 0) const {
-    return Create(document, document.GetAllocator(), alreadyExist);
-  }
-
-  //@}
-
-  //!@name Query value
-  //@{
-
-  //! Query a value in a subtree.
-  /*!
-      \param root Root value of a DOM sub-tree to be resolved. It can be any
-     value other than document root. \param unresolvedTokenIndex If the pointer
-     cannot resolve a token in the pointer, this parameter can obtain the index
-     of unresolved token. \return Pointer to the value if it can be resolved.
-     Otherwise null.
-
-      \note
-      There are only 3 situations when a value cannot be resolved:
-      1. A value in the path is not an array nor object.
-      2. An object value does not contain the token.
-      3. A token is out of range of an array value.
-
-      Use unresolvedTokenIndex to retrieve the token index.
-  */
-  ValueType* Get(ValueType& root, size_t* unresolvedTokenIndex = 0) const {
-    RAPIDJSON_ASSERT(IsValid());
-    ValueType* v = &root;
-    for (const Token* t = tokens_; t != tokens_ + tokenCount_; ++t) {
-      switch (v->GetType()) {
-        case kObjectType: {
-          typename ValueType::MemberIterator m =
-              v->FindMember(GenericStringRef<Ch>(t->name, t->length));
-          if (m == v->MemberEnd())
-            break;
-          v = &m->value;
-        }
-          continue;
-        case kArrayType:
-          if (t->index == kPointerInvalidIndex || t->index >= v->Size())
-            break;
-          v = &((*v)[t->index]);
-          continue;
-        default:
-          break;
-      }
-
-      // Error: unresolved token
-      if (unresolvedTokenIndex)
-        *unresolvedTokenIndex = static_cast<size_t>(t - tokens_);
-      return 0;
-    }
-    return v;
-  }
-
-  //! Query a const value in a const subtree.
-  /*!
-      \param root Root value of a DOM sub-tree to be resolved. It can be any
-     value other than document root. \return Pointer to the value if it can be
-     resolved. Otherwise null.
-  */
-  const ValueType* Get(const ValueType& root,
-                       size_t* unresolvedTokenIndex = 0) const {
-    return Get(const_cast<ValueType&>(root), unresolvedTokenIndex);
-  }
-
-  //@}
-
-  //!@name Query a value with default
-  //@{
-
-  //! Query a value in a subtree with default value.
-  /*!
-      Similar to Get(), but if the specified value do not exists, it creates all
-     parents and clone the default value. So that this function always succeed.
-
-      \param root Root value of a DOM sub-tree to be resolved. It can be any
-     value other than document root. \param defaultValue Default value to be
-     cloned if the value was not exists. \param allocator Allocator for creating
-     the values if the specified value or its parents are not exist. \see
-     Create()
-  */
-  ValueType& GetWithDefault(
-      ValueType& root,
-      const ValueType& defaultValue,
-      typename ValueType::AllocatorType& allocator) const {
-    bool alreadyExist;
-    Value& v = Create(root, allocator, &alreadyExist);
-    return alreadyExist ? v : v.CopyFrom(defaultValue, allocator);
-  }
-
-  //! Query a value in a subtree with default null-terminated string.
-  ValueType& GetWithDefault(
-      ValueType& root,
-      const Ch* defaultValue,
-      typename ValueType::AllocatorType& allocator) const {
-    bool alreadyExist;
-    Value& v = Create(root, allocator, &alreadyExist);
-    return alreadyExist ? v : v.SetString(defaultValue, allocator);
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Query a value in a subtree with default std::basic_string.
-  ValueType& GetWithDefault(
-      ValueType& root,
-      const std::basic_string<Ch>& defaultValue,
-      typename ValueType::AllocatorType& allocator) const {
-    bool alreadyExist;
-    Value& v = Create(root, allocator, &alreadyExist);
-    return alreadyExist ? v : v.SetString(defaultValue, allocator);
-  }
-#endif
-
-  //! Query a value in a subtree with default primitive value.
-  /*!
-      \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t,
-     \c bool
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (ValueType&))
-  GetWithDefault(ValueType& root,
-                 T defaultValue,
-                 typename ValueType::AllocatorType& allocator) const {
-    return GetWithDefault(root, ValueType(defaultValue).Move(), allocator);
-  }
-
-  //! Query a value in a document with default value.
-  template <typename stackAllocator>
-  ValueType& GetWithDefault(GenericDocument<EncodingType,
-                                            typename ValueType::AllocatorType,
-                                            stackAllocator>& document,
-                            const ValueType& defaultValue) const {
-    return GetWithDefault(document, defaultValue, document.GetAllocator());
-  }
-
-  //! Query a value in a document with default null-terminated string.
-  template <typename stackAllocator>
-  ValueType& GetWithDefault(GenericDocument<EncodingType,
-                                            typename ValueType::AllocatorType,
-                                            stackAllocator>& document,
-                            const Ch* defaultValue) const {
-    return GetWithDefault(document, defaultValue, document.GetAllocator());
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Query a value in a document with default std::basic_string.
-  template <typename stackAllocator>
-  ValueType& GetWithDefault(GenericDocument<EncodingType,
-                                            typename ValueType::AllocatorType,
-                                            stackAllocator>& document,
-                            const std::basic_string<Ch>& defaultValue) const {
-    return GetWithDefault(document, defaultValue, document.GetAllocator());
-  }
-#endif
-
-  //! Query a value in a document with default primitive value.
-  /*!
-      \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t,
-     \c bool
-  */
-  template <typename T, typename stackAllocator>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (ValueType&))
-  GetWithDefault(GenericDocument<EncodingType,
-                                 typename ValueType::AllocatorType,
-                                 stackAllocator>& document,
-                 T defaultValue) const {
-    return GetWithDefault(document, defaultValue, document.GetAllocator());
-  }
-
-  //@}
-
-  //!@name Set a value
-  //@{
-
-  //! Set a value in a subtree, with move semantics.
-  /*!
-      It creates all parents if they are not exist or types are different to the
-     tokens. So this function always succeeds but potentially remove existing
-     values.
-
-      \param root Root value of a DOM sub-tree to be resolved. It can be any
-     value other than document root. \param value Value to be set. \param
-     allocator Allocator for creating the values if the specified value or its
-     parents are not exist. \see Create()
-  */
-  ValueType& Set(ValueType& root,
-                 ValueType& value,
-                 typename ValueType::AllocatorType& allocator) const {
-    return Create(root, allocator) = value;
-  }
-
-  //! Set a value in a subtree, with copy semantics.
-  ValueType& Set(ValueType& root,
-                 const ValueType& value,
-                 typename ValueType::AllocatorType& allocator) const {
-    return Create(root, allocator).CopyFrom(value, allocator);
-  }
-
-  //! Set a null-terminated string in a subtree.
-  ValueType& Set(ValueType& root,
-                 const Ch* value,
-                 typename ValueType::AllocatorType& allocator) const {
-    return Create(root, allocator) = ValueType(value, allocator).Move();
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Set a std::basic_string in a subtree.
-  ValueType& Set(ValueType& root,
-                 const std::basic_string<Ch>& value,
-                 typename ValueType::AllocatorType& allocator) const {
-    return Create(root, allocator) = ValueType(value, allocator).Move();
-  }
-#endif
-
-  //! Set a primitive value in a subtree.
-  /*!
-      \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t,
-     \c bool
-  */
-  template <typename T>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (ValueType&))
-  Set(ValueType& root,
-      T value,
-      typename ValueType::AllocatorType& allocator) const {
-    return Create(root, allocator) = ValueType(value).Move();
-  }
-
-  //! Set a value in a document, with move semantics.
-  template <typename stackAllocator>
-  ValueType& Set(GenericDocument<EncodingType,
-                                 typename ValueType::AllocatorType,
-                                 stackAllocator>& document,
-                 ValueType& value) const {
-    return Create(document) = value;
-  }
-
-  //! Set a value in a document, with copy semantics.
-  template <typename stackAllocator>
-  ValueType& Set(GenericDocument<EncodingType,
-                                 typename ValueType::AllocatorType,
-                                 stackAllocator>& document,
-                 const ValueType& value) const {
-    return Create(document).CopyFrom(value, document.GetAllocator());
-  }
-
-  //! Set a null-terminated string in a document.
-  template <typename stackAllocator>
-  ValueType& Set(GenericDocument<EncodingType,
-                                 typename ValueType::AllocatorType,
-                                 stackAllocator>& document,
-                 const Ch* value) const {
-    return Create(document) = ValueType(value, document.GetAllocator()).Move();
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  //! Sets a std::basic_string in a document.
-  template <typename stackAllocator>
-  ValueType& Set(GenericDocument<EncodingType,
-                                 typename ValueType::AllocatorType,
-                                 stackAllocator>& document,
-                 const std::basic_string<Ch>& value) const {
-    return Create(document) = ValueType(value, document.GetAllocator()).Move();
-  }
-#endif
-
-  //! Set a primitive value in a document.
-  /*!
-  \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c
-  bool
-  */
-  template <typename T, typename stackAllocator>
-  RAPIDJSON_DISABLEIF_RETURN(
-      (internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >),
-      (ValueType&))
-  Set(GenericDocument<EncodingType,
-                      typename ValueType::AllocatorType,
-                      stackAllocator>& document,
-      T value) const {
-    return Create(document) = value;
-  }
-
-  //@}
-
-  //!@name Swap a value
-  //@{
-
-  //! Swap a value with a value in a subtree.
-  /*!
-      It creates all parents if they are not exist or types are different to the
-     tokens. So this function always succeeds but potentially remove existing
-     values.
-
-      \param root Root value of a DOM sub-tree to be resolved. It can be any
-     value other than document root. \param value Value to be swapped. \param
-     allocator Allocator for creating the values if the specified value or its
-     parents are not exist. \see Create()
-  */
-  ValueType& Swap(ValueType& root,
-                  ValueType& value,
-                  typename ValueType::AllocatorType& allocator) const {
-    return Create(root, allocator).Swap(value);
-  }
-
-  //! Swap a value with a value in a document.
-  template <typename stackAllocator>
-  ValueType& Swap(GenericDocument<EncodingType,
-                                  typename ValueType::AllocatorType,
-                                  stackAllocator>& document,
-                  ValueType& value) const {
-    return Create(document).Swap(value);
-  }
-
-  //@}
-
-  //! Erase a value in a subtree.
-  /*!
-      \param root Root value of a DOM sub-tree to be resolved. It can be any
-     value other than document root. \return Whether the resolved value is found
-     and erased.
-
-      \note Erasing with an empty pointer \c Pointer(""), i.e. the root, always
-     fail and return false.
-  */
-  bool Erase(ValueType& root) const {
-    RAPIDJSON_ASSERT(IsValid());
-    if (tokenCount_ == 0)  // Cannot erase the root
-      return false;
-
-    ValueType* v = &root;
-    const Token* last = tokens_ + (tokenCount_ - 1);
-    for (const Token* t = tokens_; t != last; ++t) {
-      switch (v->GetType()) {
-        case kObjectType: {
-          typename ValueType::MemberIterator m =
-              v->FindMember(GenericStringRef<Ch>(t->name, t->length));
-          if (m == v->MemberEnd())
-            return false;
-          v = &m->value;
-        } break;
-        case kArrayType:
-          if (t->index == kPointerInvalidIndex || t->index >= v->Size())
-            return false;
-          v = &((*v)[t->index]);
-          break;
-        default:
-          return false;
-      }
-    }
-
-    switch (v->GetType()) {
-      case kObjectType:
-        return v->EraseMember(GenericStringRef<Ch>(last->name, last->length));
-      case kArrayType:
-        if (last->index == kPointerInvalidIndex || last->index >= v->Size())
-          return false;
-        v->Erase(v->Begin() + last->index);
-        return true;
-      default:
-        return false;
-    }
-  }
-
- private:
-  //! Clone the content from rhs to this.
-  /*!
-      \param rhs Source pointer.
-      \param extraToken Extra tokens to be allocated.
-      \param extraNameBufferSize Extra name buffer size (in number of Ch) to be
-     allocated. \return Start of non-occupied name buffer, for storing extra
-     names.
-  */
-  Ch* CopyFromRaw(const GenericPointer& rhs,
-                  size_t extraToken = 0,
-                  size_t extraNameBufferSize = 0) {
-    if (!allocator_)  // allocator is independently owned.
-      ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
-
-    size_t nameBufferSize = rhs.tokenCount_;  // null terminators for tokens
-    for (Token* t = rhs.tokens_; t != rhs.tokens_ + rhs.tokenCount_; ++t)
-      nameBufferSize += t->length;
-
-    tokenCount_ = rhs.tokenCount_ + extraToken;
-    tokens_ = static_cast<Token*>(allocator_->Malloc(
-        tokenCount_ * sizeof(Token) +
-        (nameBufferSize + extraNameBufferSize) * sizeof(Ch)));
-    nameBuffer_ = reinterpret_cast<Ch*>(tokens_ + tokenCount_);
-    if (rhs.tokenCount_ > 0) {
-      std::memcpy(tokens_, rhs.tokens_, rhs.tokenCount_ * sizeof(Token));
-    }
-    if (nameBufferSize > 0) {
-      std::memcpy(nameBuffer_, rhs.nameBuffer_, nameBufferSize * sizeof(Ch));
-    }
-
-    // Adjust pointers to name buffer
-    std::ptrdiff_t diff = nameBuffer_ - rhs.nameBuffer_;
-    for (Token* t = tokens_; t != tokens_ + rhs.tokenCount_; ++t)
-      t->name += diff;
-
-    return nameBuffer_ + nameBufferSize;
-  }
-
-  //! Check whether a character should be percent-encoded.
-  /*!
-      According to RFC 3986 2.3 Unreserved Characters.
-      \param c The character (code unit) to be tested.
-  */
-  bool NeedPercentEncode(Ch c) const {
-    return !((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') ||
-             (c >= 'a' && c <= 'z') || c == '-' || c == '.' || c == '_' ||
-             c == '~');
-  }
-
-  //! Parse a JSON String or its URI fragment representation into tokens.
-#ifndef __clang__  // -Wdocumentation
-                   /*!
-                       \param source Either a JSON Pointer string, or its URI fragment
-                      representation. Not need to be null terminated.                  \param length Length of the
-                      source string.                  \note Source cannot be JSON String Representation of JSON
-                      Pointer, e.g. In "/\u0000", \u0000 will not be unescaped.
-                   */
-#endif
-  void Parse(const Ch* source, size_t length) {
-    RAPIDJSON_ASSERT(source != NULL);
-    RAPIDJSON_ASSERT(nameBuffer_ == 0);
-    RAPIDJSON_ASSERT(tokens_ == 0);
-
-    // Create own allocator if user did not supply.
-    if (!allocator_)
-      ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
-
-    // Count number of '/' as tokenCount
-    tokenCount_ = 0;
-    for (const Ch* s = source; s != source + length; s++)
-      if (*s == '/')
-        tokenCount_++;
-
-    Token* token = tokens_ = static_cast<Token*>(
-        allocator_->Malloc(tokenCount_ * sizeof(Token) + length * sizeof(Ch)));
-    Ch* name = nameBuffer_ = reinterpret_cast<Ch*>(tokens_ + tokenCount_);
-    size_t i = 0;
-
-    // Detect if it is a URI fragment
-    bool uriFragment = false;
-    if (source[i] == '#') {
-      uriFragment = true;
-      i++;
-    }
-
-    if (i != length && source[i] != '/') {
-      parseErrorCode_ = kPointerParseErrorTokenMustBeginWithSolidus;
-      goto error;
-    }
-
-    while (i < length) {
-      RAPIDJSON_ASSERT(source[i] == '/');
-      i++;  // consumes '/'
-
-      token->name = name;
-      bool isNumber = true;
-
-      while (i < length && source[i] != '/') {
-        Ch c = source[i];
-        if (uriFragment) {
-          // Decoding percent-encoding for URI fragment
-          if (c == '%') {
-            PercentDecodeStream is(&source[i], source + length);
-            GenericInsituStringStream<EncodingType> os(name);
-            Ch* begin = os.PutBegin();
-            if (!Transcoder<UTF8<>, EncodingType>().Validate(is, os) ||
-                !is.IsValid()) {
-              parseErrorCode_ = kPointerParseErrorInvalidPercentEncoding;
-              goto error;
-            }
-            size_t len = os.PutEnd(begin);
-            i += is.Tell() - 1;
-            if (len == 1)
-              c = *name;
-            else {
-              name += len;
-              isNumber = false;
-              i++;
-              continue;
-            }
-          } else if (NeedPercentEncode(c)) {
-            parseErrorCode_ = kPointerParseErrorCharacterMustPercentEncode;
-            goto error;
-          }
-        }
-
-        i++;
-
-        // Escaping "~0" -> '~', "~1" -> '/'
-        if (c == '~') {
-          if (i < length) {
-            c = source[i];
-            if (c == '0')
-              c = '~';
-            else if (c == '1')
-              c = '/';
-            else {
-              parseErrorCode_ = kPointerParseErrorInvalidEscape;
-              goto error;
-            }
-            i++;
-          } else {
-            parseErrorCode_ = kPointerParseErrorInvalidEscape;
-            goto error;
-          }
-        }
-
-        // First check for index: all of characters are digit
-        if (c < '0' || c > '9')
-          isNumber = false;
-
-        *name++ = c;
-      }
-      token->length = static_cast<SizeType>(name - token->name);
-      if (token->length == 0)
-        isNumber = false;
-      *name++ = '\0';  // Null terminator
-
-      // Second check for index: more than one digit cannot have leading zero
-      if (isNumber && token->length > 1 && token->name[0] == '0')
-        isNumber = false;
-
-      // String to SizeType conversion
-      SizeType n = 0;
-      if (isNumber) {
-        for (size_t j = 0; j < token->length; j++) {
-          SizeType m = n * 10 + static_cast<SizeType>(token->name[j] - '0');
-          if (m < n) {  // overflow detection
-            isNumber = false;
-            break;
-          }
-          n = m;
-        }
-      }
-
-      token->index = isNumber ? n : kPointerInvalidIndex;
-      token++;
-    }
-
-    RAPIDJSON_ASSERT(name <=
-                     nameBuffer_ + length);  // Should not overflow buffer
-    parseErrorCode_ = kPointerParseErrorNone;
-    return;
-
-  error:
-    Allocator::Free(tokens_);
-    nameBuffer_ = 0;
-    tokens_ = 0;
-    tokenCount_ = 0;
-    parseErrorOffset_ = i;
-    return;
-  }
-
-  //! Stringify to string or URI fragment representation.
-  /*!
-      \tparam uriFragment True for stringifying to URI fragment representation.
-     False for string representation. \tparam OutputStream type of output
-     stream. \param os The output stream.
-  */
-  template <bool uriFragment, typename OutputStream>
-  bool Stringify(OutputStream& os) const {
-    RAPIDJSON_ASSERT(IsValid());
-
-    if (uriFragment)
-      os.Put('#');
-
-    for (Token* t = tokens_; t != tokens_ + tokenCount_; ++t) {
-      os.Put('/');
-      for (size_t j = 0; j < t->length; j++) {
-        Ch c = t->name[j];
-        if (c == '~') {
-          os.Put('~');
-          os.Put('0');
-        } else if (c == '/') {
-          os.Put('~');
-          os.Put('1');
-        } else if (uriFragment && NeedPercentEncode(c)) {
-          // Transcode to UTF8 sequence
-          GenericStringStream<typename ValueType::EncodingType> source(
-              &t->name[j]);
-          PercentEncodeStream<OutputStream> target(os);
-          if (!Transcoder<EncodingType, UTF8<> >().Validate(source, target))
-            return false;
-          j += source.Tell() - 1;
-        } else
-          os.Put(c);
-      }
-    }
-    return true;
-  }
-
-  //! A helper stream for decoding a percent-encoded sequence into code unit.
-  /*!
-      This stream decodes %XY triplet into code unit (0-255).
-      If it encounters invalid characters, it sets output code unit as 0 and
-      mark invalid, and to be checked by IsValid().
-  */
-  class PercentDecodeStream {
-   public:
-    typedef typename ValueType::Ch Ch;
-
-    //! Constructor
-    /*!
-        \param source Start of the stream
-        \param end Past-the-end of the stream.
-    */
-    PercentDecodeStream(const Ch* source, const Ch* end)
-        : src_(source), head_(source), end_(end), valid_(true) {}
-
-    Ch Take() {
-      if (*src_ != '%' || src_ + 3 > end_) {  // %XY triplet
-        valid_ = false;
-        return 0;
-      }
-      src_++;
-      Ch c = 0;
-      for (int j = 0; j < 2; j++) {
-        c = static_cast<Ch>(c << 4);
-        Ch h = *src_;
-        if (h >= '0' && h <= '9')
-          c = static_cast<Ch>(c + h - '0');
-        else if (h >= 'A' && h <= 'F')
-          c = static_cast<Ch>(c + h - 'A' + 10);
-        else if (h >= 'a' && h <= 'f')
-          c = static_cast<Ch>(c + h - 'a' + 10);
-        else {
-          valid_ = false;
-          return 0;
-        }
-        src_++;
-      }
-      return c;
-    }
-
-    size_t Tell() const { return static_cast<size_t>(src_ - head_); }
-    bool IsValid() const { return valid_; }
-
-   private:
-    const Ch* src_;   //!< Current read position.
-    const Ch* head_;  //!< Original head of the string.
-    const Ch* end_;   //!< Past-the-end position.
-    bool valid_;      //!< Whether the parsing is valid.
-  };
-
-  //! A helper stream to encode character (UTF-8 code unit) into percent-encoded
-  //! sequence.
-  template <typename OutputStream>
-  class PercentEncodeStream {
-   public:
-    PercentEncodeStream(OutputStream& os) : os_(os) {}
-    void Put(char c) {  // UTF-8 must be byte
-      unsigned char u = static_cast<unsigned char>(c);
-      static const char hexDigits[16] = {'0', '1', '2', '3', '4', '5',
-                                         '6', '7', '8', '9', 'A', 'B',
-                                         'C', 'D', 'E', 'F'};
-      os_.Put('%');
-      os_.Put(hexDigits[u >> 4]);
-      os_.Put(hexDigits[u & 15]);
-    }
-
-   private:
-    OutputStream& os_;
-  };
-
-  Allocator* allocator_;  //!< The current allocator. It is either user-supplied
-                          //!< or equal to ownAllocator_.
-  Allocator* ownAllocator_;  //!< Allocator owned by this Pointer.
-  Ch* nameBuffer_;           //!< A buffer containing all names in tokens.
-  Token* tokens_;            //!< A list of tokens.
-  size_t tokenCount_;        //!< Number of tokens in tokens_.
-  size_t parseErrorOffset_;  //!< Offset in code unit when parsing fail.
-  PointerParseErrorCode parseErrorCode_;  //!< Parsing error code.
-};
-
-//! GenericPointer for Value (UTF-8, default allocator).
-typedef GenericPointer<Value> Pointer;
-
-//!@name Helper functions for GenericPointer
-//@{
-
-//////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-typename T::ValueType& CreateValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    typename T::AllocatorType& a) {
-  return pointer.Create(root, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& CreateValueByPointer(T& root,
-                                            const CharType (&source)[N],
-                                            typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1).Create(root, a);
-}
-
-// No allocator parameter
-
-template <typename DocumentType>
-typename DocumentType::ValueType& CreateValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer) {
-  return pointer.Create(document);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& CreateValueByPointer(
-    DocumentType& document,
-    const CharType (&source)[N]) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Create(document);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-typename T::ValueType* GetValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    size_t* unresolvedTokenIndex = 0) {
-  return pointer.Get(root, unresolvedTokenIndex);
-}
-
-template <typename T>
-const typename T::ValueType* GetValueByPointer(
-    const T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    size_t* unresolvedTokenIndex = 0) {
-  return pointer.Get(root, unresolvedTokenIndex);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType* GetValueByPointer(T& root,
-                                         const CharType (&source)[N],
-                                         size_t* unresolvedTokenIndex = 0) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Get(root, unresolvedTokenIndex);
-}
-
-template <typename T, typename CharType, size_t N>
-const typename T::ValueType* GetValueByPointer(
-    const T& root,
-    const CharType (&source)[N],
-    size_t* unresolvedTokenIndex = 0) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Get(root, unresolvedTokenIndex);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-typename T::ValueType& GetValueByPointerWithDefault(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    const typename T::ValueType& defaultValue,
-    typename T::AllocatorType& a) {
-  return pointer.GetWithDefault(root, defaultValue, a);
-}
-
-template <typename T>
-typename T::ValueType& GetValueByPointerWithDefault(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    const typename T::Ch* defaultValue,
-    typename T::AllocatorType& a) {
-  return pointer.GetWithDefault(root, defaultValue, a);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename T>
-typename T::ValueType& GetValueByPointerWithDefault(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    const std::basic_string<typename T::Ch>& defaultValue,
-    typename T::AllocatorType& a) {
-  return pointer.GetWithDefault(root, defaultValue, a);
-}
-#endif
-
-template <typename T, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename T::ValueType&))
-GetValueByPointerWithDefault(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    T2 defaultValue,
-    typename T::AllocatorType& a) {
-  return pointer.GetWithDefault(root, defaultValue, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& GetValueByPointerWithDefault(
-    T& root,
-    const CharType (&source)[N],
-    const typename T::ValueType& defaultValue,
-    typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .GetWithDefault(root, defaultValue, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& GetValueByPointerWithDefault(
-    T& root,
-    const CharType (&source)[N],
-    const typename T::Ch* defaultValue,
-    typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .GetWithDefault(root, defaultValue, a);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& GetValueByPointerWithDefault(
-    T& root,
-    const CharType (&source)[N],
-    const std::basic_string<typename T::Ch>& defaultValue,
-    typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .GetWithDefault(root, defaultValue, a);
-}
-#endif
-
-template <typename T, typename CharType, size_t N, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename T::ValueType&))
-GetValueByPointerWithDefault(T& root,
-                             const CharType (&source)[N],
-                             T2 defaultValue,
-                             typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .GetWithDefault(root, defaultValue, a);
-}
-
-// No allocator parameter
-
-template <typename DocumentType>
-typename DocumentType::ValueType& GetValueByPointerWithDefault(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    const typename DocumentType::ValueType& defaultValue) {
-  return pointer.GetWithDefault(document, defaultValue);
-}
-
-template <typename DocumentType>
-typename DocumentType::ValueType& GetValueByPointerWithDefault(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    const typename DocumentType::Ch* defaultValue) {
-  return pointer.GetWithDefault(document, defaultValue);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename DocumentType>
-typename DocumentType::ValueType& GetValueByPointerWithDefault(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    const std::basic_string<typename DocumentType::Ch>& defaultValue) {
-  return pointer.GetWithDefault(document, defaultValue);
-}
-#endif
-
-template <typename DocumentType, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename DocumentType::ValueType&))
-GetValueByPointerWithDefault(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    T2 defaultValue) {
-  return pointer.GetWithDefault(document, defaultValue);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& GetValueByPointerWithDefault(
-    DocumentType& document,
-    const CharType (&source)[N],
-    const typename DocumentType::ValueType& defaultValue) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .GetWithDefault(document, defaultValue);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& GetValueByPointerWithDefault(
-    DocumentType& document,
-    const CharType (&source)[N],
-    const typename DocumentType::Ch* defaultValue) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .GetWithDefault(document, defaultValue);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& GetValueByPointerWithDefault(
-    DocumentType& document,
-    const CharType (&source)[N],
-    const std::basic_string<typename DocumentType::Ch>& defaultValue) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .GetWithDefault(document, defaultValue);
-}
-#endif
-
-template <typename DocumentType, typename CharType, size_t N, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename DocumentType::ValueType&))
-GetValueByPointerWithDefault(DocumentType& document,
-                             const CharType (&source)[N],
-                             T2 defaultValue) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .GetWithDefault(document, defaultValue);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-typename T::ValueType& SetValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    typename T::ValueType& value,
-    typename T::AllocatorType& a) {
-  return pointer.Set(root, value, a);
-}
-
-template <typename T>
-typename T::ValueType& SetValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    const typename T::ValueType& value,
-    typename T::AllocatorType& a) {
-  return pointer.Set(root, value, a);
-}
-
-template <typename T>
-typename T::ValueType& SetValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    const typename T::Ch* value,
-    typename T::AllocatorType& a) {
-  return pointer.Set(root, value, a);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename T>
-typename T::ValueType& SetValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    const std::basic_string<typename T::Ch>& value,
-    typename T::AllocatorType& a) {
-  return pointer.Set(root, value, a);
-}
-#endif
-
-template <typename T, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename T::ValueType&))
-SetValueByPointer(T& root,
-                  const GenericPointer<typename T::ValueType>& pointer,
-                  T2 value,
-                  typename T::AllocatorType& a) {
-  return pointer.Set(root, value, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& SetValueByPointer(T& root,
-                                         const CharType (&source)[N],
-                                         typename T::ValueType& value,
-                                         typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Set(root, value, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& SetValueByPointer(T& root,
-                                         const CharType (&source)[N],
-                                         const typename T::ValueType& value,
-                                         typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Set(root, value, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& SetValueByPointer(T& root,
-                                         const CharType (&source)[N],
-                                         const typename T::Ch* value,
-                                         typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Set(root, value, a);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& SetValueByPointer(
-    T& root,
-    const CharType (&source)[N],
-    const std::basic_string<typename T::Ch>& value,
-    typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Set(root, value, a);
-}
-#endif
-
-template <typename T, typename CharType, size_t N, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename T::ValueType&))
-SetValueByPointer(T& root,
-                  const CharType (&source)[N],
-                  T2 value,
-                  typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Set(root, value, a);
-}
-
-// No allocator parameter
-
-template <typename DocumentType>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    typename DocumentType::ValueType& value) {
-  return pointer.Set(document, value);
-}
-
-template <typename DocumentType>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    const typename DocumentType::ValueType& value) {
-  return pointer.Set(document, value);
-}
-
-template <typename DocumentType>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    const typename DocumentType::Ch* value) {
-  return pointer.Set(document, value);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename DocumentType>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    const std::basic_string<typename DocumentType::Ch>& value) {
-  return pointer.Set(document, value);
-}
-#endif
-
-template <typename DocumentType, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename DocumentType::ValueType&))
-SetValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    T2 value) {
-  return pointer.Set(document, value);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const CharType (&source)[N],
-    typename DocumentType::ValueType& value) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Set(document, value);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const CharType (&source)[N],
-    const typename DocumentType::ValueType& value) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Set(document, value);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const CharType (&source)[N],
-    const typename DocumentType::Ch* value) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Set(document, value);
-}
-
-#if RAPIDJSON_HAS_STDSTRING
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& SetValueByPointer(
-    DocumentType& document,
-    const CharType (&source)[N],
-    const std::basic_string<typename DocumentType::Ch>& value) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Set(document, value);
-}
-#endif
-
-template <typename DocumentType, typename CharType, size_t N, typename T2>
-RAPIDJSON_DISABLEIF_RETURN(
-    (internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >),
-    (typename DocumentType::ValueType&))
-SetValueByPointer(DocumentType& document,
-                  const CharType (&source)[N],
-                  T2 value) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Set(document, value);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-typename T::ValueType& SwapValueByPointer(
-    T& root,
-    const GenericPointer<typename T::ValueType>& pointer,
-    typename T::ValueType& value,
-    typename T::AllocatorType& a) {
-  return pointer.Swap(root, value, a);
-}
-
-template <typename T, typename CharType, size_t N>
-typename T::ValueType& SwapValueByPointer(T& root,
-                                          const CharType (&source)[N],
-                                          typename T::ValueType& value,
-                                          typename T::AllocatorType& a) {
-  return GenericPointer<typename T::ValueType>(source, N - 1)
-      .Swap(root, value, a);
-}
-
-template <typename DocumentType>
-typename DocumentType::ValueType& SwapValueByPointer(
-    DocumentType& document,
-    const GenericPointer<typename DocumentType::ValueType>& pointer,
-    typename DocumentType::ValueType& value) {
-  return pointer.Swap(document, value);
-}
-
-template <typename DocumentType, typename CharType, size_t N>
-typename DocumentType::ValueType& SwapValueByPointer(
-    DocumentType& document,
-    const CharType (&source)[N],
-    typename DocumentType::ValueType& value) {
-  return GenericPointer<typename DocumentType::ValueType>(source, N - 1)
-      .Swap(document, value);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-template <typename T>
-bool EraseValueByPointer(T& root,
-                         const GenericPointer<typename T::ValueType>& pointer) {
-  return pointer.Erase(root);
-}
-
-template <typename T, typename CharType, size_t N>
-bool EraseValueByPointer(T& root, const CharType (&source)[N]) {
-  return GenericPointer<typename T::ValueType>(source, N - 1).Erase(root);
-}
-
-//@}
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_POINTER_H_
diff --git a/third_party/rapidjson/prettywriter.h b/third_party/rapidjson/prettywriter.h
deleted file mode 100644
index 0dcb0fee..00000000
--- a/third_party/rapidjson/prettywriter.h
+++ /dev/null
@@ -1,255 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_PRETTYWRITER_H_
-#define RAPIDJSON_PRETTYWRITER_H_
-
-#include "writer.h"
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Combination of PrettyWriter format flags.
-/*! \see PrettyWriter::SetFormatOptions
- */
-enum PrettyFormatOptions {
-    kFormatDefault = 0,         //!< Default pretty formatting.
-    kFormatSingleLineArray = 1  //!< Format arrays on a single line.
-};
-
-//! Writer with indentation and spacing.
-/*!
-    \tparam OutputStream Type of ouptut os.
-    \tparam SourceEncoding Encoding of source string.
-    \tparam TargetEncoding Encoding of output stream.
-    \tparam StackAllocator Type of allocator for allocating memory of stack.
-*/
-template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags>
-class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> {
-public:
-    typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> Base;
-    typedef typename Base::Ch Ch;
-
-    //! Constructor
-    /*! \param os Output stream.
-        \param allocator User supplied allocator. If it is null, it will create a private one.
-        \param levelDepth Initial capacity of stack.
-    */
-    explicit PrettyWriter(OutputStream& os, StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) : 
-        Base(os, allocator, levelDepth), indentChar_(' '), indentCharCount_(4), formatOptions_(kFormatDefault) {}
-
-
-    explicit PrettyWriter(StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) : 
-        Base(allocator, levelDepth), indentChar_(' '), indentCharCount_(4) {}
-
-    //! Set custom indentation.
-    /*! \param indentChar       Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r').
-        \param indentCharCount  Number of indent characters for each indentation level.
-        \note The default indentation is 4 spaces.
-    */
-    PrettyWriter& SetIndent(Ch indentChar, unsigned indentCharCount) {
-        RAPIDJSON_ASSERT(indentChar == ' ' || indentChar == '\t' || indentChar == '\n' || indentChar == '\r');
-        indentChar_ = indentChar;
-        indentCharCount_ = indentCharCount;
-        return *this;
-    }
-
-    //! Set pretty writer formatting options.
-    /*! \param options Formatting options.
-    */
-    PrettyWriter& SetFormatOptions(PrettyFormatOptions options) {
-        formatOptions_ = options;
-        return *this;
-    }
-
-    /*! @name Implementation of Handler
-        \see Handler
-    */
-    //@{
-
-    bool Null()                 { PrettyPrefix(kNullType);   return Base::WriteNull(); }
-    bool Bool(bool b)           { PrettyPrefix(b ? kTrueType : kFalseType); return Base::WriteBool(b); }
-    bool Int(int i)             { PrettyPrefix(kNumberType); return Base::WriteInt(i); }
-    bool Uint(unsigned u)       { PrettyPrefix(kNumberType); return Base::WriteUint(u); }
-    bool Int64(int64_t i64)     { PrettyPrefix(kNumberType); return Base::WriteInt64(i64); }
-    bool Uint64(uint64_t u64)   { PrettyPrefix(kNumberType); return Base::WriteUint64(u64);  }
-    bool Double(double d)       { PrettyPrefix(kNumberType); return Base::WriteDouble(d); }
-
-    bool RawNumber(const Ch* str, SizeType length, bool copy = false) {
-        (void)copy;
-        PrettyPrefix(kNumberType);
-        return Base::WriteString(str, length);
-    }
-
-    bool String(const Ch* str, SizeType length, bool copy = false) {
-        (void)copy;
-        PrettyPrefix(kStringType);
-        return Base::WriteString(str, length);
-    }
-
-#if RAPIDJSON_HAS_STDSTRING
-    bool String(const std::basic_string<Ch>& str) {
-        return String(str.data(), SizeType(str.size()));
-    }
-#endif
-
-    bool StartObject() {
-        PrettyPrefix(kObjectType);
-        new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(false);
-        return Base::WriteStartObject();
-    }
-
-    bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); }
-
-#if RAPIDJSON_HAS_STDSTRING
-    bool Key(const std::basic_string<Ch>& str) {
-        return Key(str.data(), SizeType(str.size()));
-    }
-#endif
-	
-    bool EndObject(SizeType memberCount = 0) {
-        (void)memberCount;
-        RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level));
-        RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray);
-        bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
-
-        if (!empty) {
-            Base::os_->Put('\n');
-            WriteIndent();
-        }
-        bool ret = Base::WriteEndObject();
-        (void)ret;
-        RAPIDJSON_ASSERT(ret == true);
-        if (Base::level_stack_.Empty()) // end of json text
-            Base::os_->Flush();
-        return true;
-    }
-
-    bool StartArray() {
-        PrettyPrefix(kArrayType);
-        new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(true);
-        return Base::WriteStartArray();
-    }
-
-    bool EndArray(SizeType memberCount = 0) {
-        (void)memberCount;
-        RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level));
-        RAPIDJSON_ASSERT(Base::level_stack_.template Top<typename Base::Level>()->inArray);
-        bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
-
-        if (!empty && !(formatOptions_ & kFormatSingleLineArray)) {
-            Base::os_->Put('\n');
-            WriteIndent();
-        }
-        bool ret = Base::WriteEndArray();
-        (void)ret;
-        RAPIDJSON_ASSERT(ret == true);
-        if (Base::level_stack_.Empty()) // end of json text
-            Base::os_->Flush();
-        return true;
-    }
-
-    //@}
-
-    /*! @name Convenience extensions */
-    //@{
-
-    //! Simpler but slower overload.
-    bool String(const Ch* str) { return String(str, internal::StrLen(str)); }
-    bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); }
-
-    //@}
-
-    //! Write a raw JSON value.
-    /*!
-        For user to write a stringified JSON as a value.
-
-        \param json A well-formed JSON value. It should not contain null character within [0, length - 1] range.
-        \param length Length of the json.
-        \param type Type of the root of json.
-        \note When using PrettyWriter::RawValue(), the result json may not be indented correctly.
-    */
-    bool RawValue(const Ch* json, size_t length, Type type) { PrettyPrefix(type); return Base::WriteRawValue(json, length); }
-
-protected:
-    void PrettyPrefix(Type type) {
-        (void)type;
-        if (Base::level_stack_.GetSize() != 0) { // this value is not at root
-            typename Base::Level* level = Base::level_stack_.template Top<typename Base::Level>();
-
-            if (level->inArray) {
-                if (level->valueCount > 0) {
-                    Base::os_->Put(','); // add comma if it is not the first element in array
-                    if (formatOptions_ & kFormatSingleLineArray)
-                        Base::os_->Put(' ');
-                }
-
-                if (!(formatOptions_ & kFormatSingleLineArray)) {
-                    Base::os_->Put('\n');
-                    WriteIndent();
-                }
-            }
-            else {  // in object
-                if (level->valueCount > 0) {
-                    if (level->valueCount % 2 == 0) {
-                        Base::os_->Put(',');
-                        Base::os_->Put('\n');
-                    }
-                    else {
-                        Base::os_->Put(':');
-                        Base::os_->Put(' ');
-                    }
-                }
-                else
-                    Base::os_->Put('\n');
-
-                if (level->valueCount % 2 == 0)
-                    WriteIndent();
-            }
-            if (!level->inArray && level->valueCount % 2 == 0)
-                RAPIDJSON_ASSERT(type == kStringType);  // if it's in object, then even number should be a name
-            level->valueCount++;
-        }
-        else {
-            RAPIDJSON_ASSERT(!Base::hasRoot_);  // Should only has one and only one root.
-            Base::hasRoot_ = true;
-        }
-    }
-
-    void WriteIndent()  {
-        size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_;
-        PutN(*Base::os_, static_cast<typename TargetEncoding::Ch>(indentChar_), count);
-    }
-
-    Ch indentChar_;
-    unsigned indentCharCount_;
-    PrettyFormatOptions formatOptions_;
-
-private:
-    // Prohibit copy constructor & assignment operator.
-    PrettyWriter(const PrettyWriter&);
-    PrettyWriter& operator=(const PrettyWriter&);
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_RAPIDJSON_H_
diff --git a/third_party/rapidjson/rapidjson.h b/third_party/rapidjson/rapidjson.h
deleted file mode 100644
index 053b2ce4..00000000
--- a/third_party/rapidjson/rapidjson.h
+++ /dev/null
@@ -1,615 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_RAPIDJSON_H_
-#define RAPIDJSON_RAPIDJSON_H_
-
-/*!\file rapidjson.h
-    \brief common definitions and configuration
-    
-    \see RAPIDJSON_CONFIG
- */
-
-/*! \defgroup RAPIDJSON_CONFIG RapidJSON configuration
-    \brief Configuration macros for library features
-
-    Some RapidJSON features are configurable to adapt the library to a wide
-    variety of platforms, environments and usage scenarios.  Most of the
-    features can be configured in terms of overriden or predefined
-    preprocessor macros at compile-time.
-
-    Some additional customization is available in the \ref RAPIDJSON_ERRORS APIs.
-
-    \note These macros should be given on the compiler command-line
-          (where applicable)  to avoid inconsistent values when compiling
-          different translation units of a single application.
- */
-
-#include <cstdlib>  // malloc(), realloc(), free(), size_t
-#include <cstring>  // memset(), memcpy(), memmove(), memcmp()
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_VERSION_STRING
-//
-// ALWAYS synchronize the following 3 macros with corresponding variables in /CMakeLists.txt.
-//
-
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-// token stringification
-#define RAPIDJSON_STRINGIFY(x) RAPIDJSON_DO_STRINGIFY(x)
-#define RAPIDJSON_DO_STRINGIFY(x) #x
-//!@endcond
-
-/*! \def RAPIDJSON_MAJOR_VERSION
-    \ingroup RAPIDJSON_CONFIG
-    \brief Major version of RapidJSON in integer.
-*/
-/*! \def RAPIDJSON_MINOR_VERSION
-    \ingroup RAPIDJSON_CONFIG
-    \brief Minor version of RapidJSON in integer.
-*/
-/*! \def RAPIDJSON_PATCH_VERSION
-    \ingroup RAPIDJSON_CONFIG
-    \brief Patch version of RapidJSON in integer.
-*/
-/*! \def RAPIDJSON_VERSION_STRING
-    \ingroup RAPIDJSON_CONFIG
-    \brief Version of RapidJSON in "<major>.<minor>.<patch>" string format.
-*/
-#define RAPIDJSON_MAJOR_VERSION 1
-#define RAPIDJSON_MINOR_VERSION 1
-#define RAPIDJSON_PATCH_VERSION 0
-#define RAPIDJSON_VERSION_STRING \
-    RAPIDJSON_STRINGIFY(RAPIDJSON_MAJOR_VERSION.RAPIDJSON_MINOR_VERSION.RAPIDJSON_PATCH_VERSION)
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_NAMESPACE_(BEGIN|END)
-/*! \def RAPIDJSON_NAMESPACE
-    \ingroup RAPIDJSON_CONFIG
-    \brief   provide custom rapidjson namespace
-
-    In order to avoid symbol clashes and/or "One Definition Rule" errors
-    between multiple inclusions of (different versions of) RapidJSON in
-    a single binary, users can customize the name of the main RapidJSON
-    namespace.
-
-    In case of a single nesting level, defining \c RAPIDJSON_NAMESPACE
-    to a custom name (e.g. \c MyRapidJSON) is sufficient.  If multiple
-    levels are needed, both \ref RAPIDJSON_NAMESPACE_BEGIN and \ref
-    RAPIDJSON_NAMESPACE_END need to be defined as well:
-
-    \code
-    // in some .cpp file
-    #define RAPIDJSON_NAMESPACE my::rapidjson
-    #define RAPIDJSON_NAMESPACE_BEGIN namespace my { namespace rapidjson {
-    #define RAPIDJSON_NAMESPACE_END   } }
-    #include "rapidjson/..."
-    \endcode
-
-    \see rapidjson
- */
-/*! \def RAPIDJSON_NAMESPACE_BEGIN
-    \ingroup RAPIDJSON_CONFIG
-    \brief   provide custom rapidjson namespace (opening expression)
-    \see RAPIDJSON_NAMESPACE
-*/
-/*! \def RAPIDJSON_NAMESPACE_END
-    \ingroup RAPIDJSON_CONFIG
-    \brief   provide custom rapidjson namespace (closing expression)
-    \see RAPIDJSON_NAMESPACE
-*/
-#ifndef RAPIDJSON_NAMESPACE
-#define RAPIDJSON_NAMESPACE rapidjson
-#endif
-#ifndef RAPIDJSON_NAMESPACE_BEGIN
-#define RAPIDJSON_NAMESPACE_BEGIN namespace RAPIDJSON_NAMESPACE {
-#endif
-#ifndef RAPIDJSON_NAMESPACE_END
-#define RAPIDJSON_NAMESPACE_END }
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_HAS_STDSTRING
-
-#ifndef RAPIDJSON_HAS_STDSTRING
-#ifdef RAPIDJSON_DOXYGEN_RUNNING
-#define RAPIDJSON_HAS_STDSTRING 1 // force generation of documentation
-#else
-#define RAPIDJSON_HAS_STDSTRING 0 // no std::string support by default
-#endif
-/*! \def RAPIDJSON_HAS_STDSTRING
-    \ingroup RAPIDJSON_CONFIG
-    \brief Enable RapidJSON support for \c std::string
-
-    By defining this preprocessor symbol to \c 1, several convenience functions for using
-    \ref rapidjson::GenericValue with \c std::string are enabled, especially
-    for construction and comparison.
-
-    \hideinitializer
-*/
-#endif // !defined(RAPIDJSON_HAS_STDSTRING)
-
-#if RAPIDJSON_HAS_STDSTRING
-#include <string>
-#endif // RAPIDJSON_HAS_STDSTRING
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_NO_INT64DEFINE
-
-/*! \def RAPIDJSON_NO_INT64DEFINE
-    \ingroup RAPIDJSON_CONFIG
-    \brief Use external 64-bit integer types.
-
-    RapidJSON requires the 64-bit integer types \c int64_t and  \c uint64_t types
-    to be available at global scope.
-
-    If users have their own definition, define RAPIDJSON_NO_INT64DEFINE to
-    prevent RapidJSON from defining its own types.
-*/
-#ifndef RAPIDJSON_NO_INT64DEFINE
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-#if defined(_MSC_VER) && (_MSC_VER < 1800)	// Visual Studio 2013
-#include "msinttypes/stdint.h"
-#include "msinttypes/inttypes.h"
-#else
-// Other compilers should have this.
-#include <stdint.h>
-#include <inttypes.h>
-#endif
-//!@endcond
-#ifdef RAPIDJSON_DOXYGEN_RUNNING
-#define RAPIDJSON_NO_INT64DEFINE
-#endif
-#endif // RAPIDJSON_NO_INT64TYPEDEF
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_FORCEINLINE
-
-#ifndef RAPIDJSON_FORCEINLINE
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-#if defined(_MSC_VER) && defined(NDEBUG)
-#define RAPIDJSON_FORCEINLINE __forceinline
-#elif defined(__GNUC__) && __GNUC__ >= 4 && defined(NDEBUG)
-#define RAPIDJSON_FORCEINLINE __attribute__((always_inline))
-#else
-#define RAPIDJSON_FORCEINLINE
-#endif
-//!@endcond
-#endif // RAPIDJSON_FORCEINLINE
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_ENDIAN
-#define RAPIDJSON_LITTLEENDIAN  0   //!< Little endian machine
-#define RAPIDJSON_BIGENDIAN     1   //!< Big endian machine
-
-//! Endianness of the machine.
-/*!
-    \def RAPIDJSON_ENDIAN
-    \ingroup RAPIDJSON_CONFIG
-
-    GCC 4.6 provided macro for detecting endianness of the target machine. But other
-    compilers may not have this. User can define RAPIDJSON_ENDIAN to either
-    \ref RAPIDJSON_LITTLEENDIAN or \ref RAPIDJSON_BIGENDIAN.
-
-    Default detection implemented with reference to
-    \li https://gcc.gnu.org/onlinedocs/gcc-4.6.0/cpp/Common-Predefined-Macros.html
-    \li http://www.boost.org/doc/libs/1_42_0/boost/detail/endian.hpp
-*/
-#ifndef RAPIDJSON_ENDIAN
-// Detect with GCC 4.6's macro
-#  ifdef __BYTE_ORDER__
-#    if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-#      define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
-#    elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
-#      define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
-#    else
-#      error Unknown machine endianess detected. User needs to define RAPIDJSON_ENDIAN.
-#    endif // __BYTE_ORDER__
-// Detect with GLIBC's endian.h
-#  elif defined(__GLIBC__)
-#    include <endian.h>
-#    if (__BYTE_ORDER == __LITTLE_ENDIAN)
-#      define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
-#    elif (__BYTE_ORDER == __BIG_ENDIAN)
-#      define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
-#    else
-#      error Unknown machine endianess detected. User needs to define RAPIDJSON_ENDIAN.
-#   endif // __GLIBC__
-// Detect with _LITTLE_ENDIAN and _BIG_ENDIAN macro
-#  elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
-#    define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
-#  elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)
-#    define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
-// Detect with architecture macros
-#  elif defined(__sparc) || defined(__sparc__) || defined(_POWER) || defined(__powerpc__) || defined(__ppc__) || defined(__hpux) || defined(__hppa) || defined(_MIPSEB) || defined(_POWER) || defined(__s390__)
-#    define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
-#  elif defined(__i386__) || defined(__alpha__) || defined(__ia64) || defined(__ia64__) || defined(_M_IX86) || defined(_M_IA64) || defined(_M_ALPHA) || defined(__amd64) || defined(__amd64__) || defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || defined(__bfin__)
-#    define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
-#  elif defined(_MSC_VER) && defined(_M_ARM)
-#    define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
-#  elif defined(RAPIDJSON_DOXYGEN_RUNNING)
-#    define RAPIDJSON_ENDIAN
-#  else
-#    error Unknown machine endianess detected. User needs to define RAPIDJSON_ENDIAN.   
-#  endif
-#endif // RAPIDJSON_ENDIAN
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_64BIT
-
-//! Whether using 64-bit architecture
-#ifndef RAPIDJSON_64BIT
-#if defined(__LP64__) || (defined(__x86_64__) && defined(__ILP32__)) || defined(_WIN64) || defined(__EMSCRIPTEN__)
-#define RAPIDJSON_64BIT 1
-#else
-#define RAPIDJSON_64BIT 0
-#endif
-#endif // RAPIDJSON_64BIT
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_ALIGN
-
-//! Data alignment of the machine.
-/*! \ingroup RAPIDJSON_CONFIG
-    \param x pointer to align
-
-    Some machines require strict data alignment. Currently the default uses 4 bytes
-    alignment on 32-bit platforms and 8 bytes alignment for 64-bit platforms.
-    User can customize by defining the RAPIDJSON_ALIGN function macro.
-*/
-#ifndef RAPIDJSON_ALIGN
-#if RAPIDJSON_64BIT == 1
-#define RAPIDJSON_ALIGN(x) (((x) + static_cast<uint64_t>(7u)) & ~static_cast<uint64_t>(7u))
-#else
-#define RAPIDJSON_ALIGN(x) (((x) + 3u) & ~3u)
-#endif
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_UINT64_C2
-
-//! Construct a 64-bit literal by a pair of 32-bit integer.
-/*!
-    64-bit literal with or without ULL suffix is prone to compiler warnings.
-    UINT64_C() is C macro which cause compilation problems.
-    Use this macro to define 64-bit constants by a pair of 32-bit integer.
-*/
-#ifndef RAPIDJSON_UINT64_C2
-#define RAPIDJSON_UINT64_C2(high32, low32) ((static_cast<uint64_t>(high32) << 32) | static_cast<uint64_t>(low32))
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_48BITPOINTER_OPTIMIZATION
-
-//! Use only lower 48-bit address for some pointers.
-/*!
-    \ingroup RAPIDJSON_CONFIG
-
-    This optimization uses the fact that current X86-64 architecture only implement lower 48-bit virtual address.
-    The higher 16-bit can be used for storing other data.
-    \c GenericValue uses this optimization to reduce its size form 24 bytes to 16 bytes in 64-bit architecture.
-*/
-#ifndef RAPIDJSON_48BITPOINTER_OPTIMIZATION
-#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
-#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 1
-#else
-#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 0
-#endif
-#endif // RAPIDJSON_48BITPOINTER_OPTIMIZATION
-
-#if RAPIDJSON_48BITPOINTER_OPTIMIZATION == 1
-#if RAPIDJSON_64BIT != 1
-#error RAPIDJSON_48BITPOINTER_OPTIMIZATION can only be set to 1 when RAPIDJSON_64BIT=1
-#endif
-#define RAPIDJSON_SETPOINTER(type, p, x) (p = reinterpret_cast<type *>((reinterpret_cast<uintptr_t>(p) & static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0xFFFF0000, 0x00000000))) | reinterpret_cast<uintptr_t>(reinterpret_cast<const void*>(x))))
-#define RAPIDJSON_GETPOINTER(type, p) (reinterpret_cast<type *>(reinterpret_cast<uintptr_t>(p) & static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0x0000FFFF, 0xFFFFFFFF))))
-#else
-#define RAPIDJSON_SETPOINTER(type, p, x) (p = (x))
-#define RAPIDJSON_GETPOINTER(type, p) (p)
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_SIMD
-
-/*! \def RAPIDJSON_SIMD
-    \ingroup RAPIDJSON_CONFIG
-    \brief Enable SSE2/SSE4.2 optimization.
-
-    RapidJSON supports optimized implementations for some parsing operations
-    based on the SSE2 or SSE4.2 SIMD extensions on modern Intel-compatible
-    processors.
-
-    To enable these optimizations, two different symbols can be defined;
-    \code
-    // Enable SSE2 optimization.
-    #define RAPIDJSON_SSE2
-
-    // Enable SSE4.2 optimization.
-    #define RAPIDJSON_SSE42
-    \endcode
-
-    \c RAPIDJSON_SSE42 takes precedence, if both are defined.
-
-    If any of these symbols is defined, RapidJSON defines the macro
-    \c RAPIDJSON_SIMD to indicate the availability of the optimized code.
-*/
-#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) \
-    || defined(RAPIDJSON_DOXYGEN_RUNNING)
-#define RAPIDJSON_SIMD
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_NO_SIZETYPEDEFINE
-
-#ifndef RAPIDJSON_NO_SIZETYPEDEFINE
-/*! \def RAPIDJSON_NO_SIZETYPEDEFINE
-    \ingroup RAPIDJSON_CONFIG
-    \brief User-provided \c SizeType definition.
-
-    In order to avoid using 32-bit size types for indexing strings and arrays,
-    define this preprocessor symbol and provide the type rapidjson::SizeType
-    before including RapidJSON:
-    \code
-    #define RAPIDJSON_NO_SIZETYPEDEFINE
-    namespace rapidjson { typedef ::std::size_t SizeType; }
-    #include "rapidjson/..."
-    \endcode
-
-    \see rapidjson::SizeType
-*/
-#ifdef RAPIDJSON_DOXYGEN_RUNNING
-#define RAPIDJSON_NO_SIZETYPEDEFINE
-#endif
-RAPIDJSON_NAMESPACE_BEGIN
-//! Size type (for string lengths, array sizes, etc.)
-/*! RapidJSON uses 32-bit array/string indices even on 64-bit platforms,
-    instead of using \c size_t. Users may override the SizeType by defining
-    \ref RAPIDJSON_NO_SIZETYPEDEFINE.
-*/
-typedef unsigned SizeType;
-RAPIDJSON_NAMESPACE_END
-#endif
-
-// always import std::size_t to rapidjson namespace
-RAPIDJSON_NAMESPACE_BEGIN
-using std::size_t;
-RAPIDJSON_NAMESPACE_END
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_ASSERT
-
-//! Assertion.
-/*! \ingroup RAPIDJSON_CONFIG
-    By default, rapidjson uses C \c assert() for internal assertions.
-    User can override it by defining RAPIDJSON_ASSERT(x) macro.
-
-    \note Parsing errors are handled and can be customized by the
-          \ref RAPIDJSON_ERRORS APIs.
-*/
-#ifndef RAPIDJSON_ASSERT
-#include <cassert>
-#define RAPIDJSON_ASSERT(x) assert(x)
-#endif // RAPIDJSON_ASSERT
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_STATIC_ASSERT
-
-// Adopt from boost
-#ifndef RAPIDJSON_STATIC_ASSERT
-#ifndef __clang__
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-#endif
-RAPIDJSON_NAMESPACE_BEGIN
-template <bool x> struct STATIC_ASSERTION_FAILURE;
-template <> struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; };
-template<int x> struct StaticAssertTest {};
-RAPIDJSON_NAMESPACE_END
-
-#define RAPIDJSON_JOIN(X, Y) RAPIDJSON_DO_JOIN(X, Y)
-#define RAPIDJSON_DO_JOIN(X, Y) RAPIDJSON_DO_JOIN2(X, Y)
-#define RAPIDJSON_DO_JOIN2(X, Y) X##Y
-
-#if defined(__GNUC__)
-#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused))
-#else
-#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE 
-#endif
-#ifndef __clang__
-//!@endcond
-#endif
-
-/*! \def RAPIDJSON_STATIC_ASSERT
-    \brief (Internal) macro to check for conditions at compile-time
-    \param x compile-time condition
-    \hideinitializer
- */
-#define RAPIDJSON_STATIC_ASSERT(x) \
-    typedef ::RAPIDJSON_NAMESPACE::StaticAssertTest< \
-      sizeof(::RAPIDJSON_NAMESPACE::STATIC_ASSERTION_FAILURE<bool(x) >)> \
-    RAPIDJSON_JOIN(StaticAssertTypedef, __LINE__) RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_LIKELY, RAPIDJSON_UNLIKELY
-
-//! Compiler branching hint for expression with high probability to be true.
-/*!
-    \ingroup RAPIDJSON_CONFIG
-    \param x Boolean expression likely to be true.
-*/
-#ifndef RAPIDJSON_LIKELY
-#if defined(__GNUC__) || defined(__clang__)
-#define RAPIDJSON_LIKELY(x) __builtin_expect(!!(x), 1)
-#else
-#define RAPIDJSON_LIKELY(x) (x)
-#endif
-#endif
-
-//! Compiler branching hint for expression with low probability to be true.
-/*!
-    \ingroup RAPIDJSON_CONFIG
-    \param x Boolean expression unlikely to be true.
-*/
-#ifndef RAPIDJSON_UNLIKELY
-#if defined(__GNUC__) || defined(__clang__)
-#define RAPIDJSON_UNLIKELY(x) __builtin_expect(!!(x), 0)
-#else
-#define RAPIDJSON_UNLIKELY(x) (x)
-#endif
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// Helpers
-
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-
-#define RAPIDJSON_MULTILINEMACRO_BEGIN do {  
-#define RAPIDJSON_MULTILINEMACRO_END \
-} while((void)0, 0)
-
-// adopted from Boost
-#define RAPIDJSON_VERSION_CODE(x,y,z) \
-  (((x)*100000) + ((y)*100) + (z))
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_DIAG_PUSH/POP, RAPIDJSON_DIAG_OFF
-
-#if defined(__GNUC__)
-#define RAPIDJSON_GNUC \
-    RAPIDJSON_VERSION_CODE(__GNUC__,__GNUC_MINOR__,__GNUC_PATCHLEVEL__)
-#endif
-
-#if defined(__clang__) || (defined(RAPIDJSON_GNUC) && RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,2,0))
-
-#define RAPIDJSON_PRAGMA(x) _Pragma(RAPIDJSON_STRINGIFY(x))
-#define RAPIDJSON_DIAG_PRAGMA(x) RAPIDJSON_PRAGMA(GCC diagnostic x)
-#define RAPIDJSON_DIAG_OFF(x) \
-    RAPIDJSON_DIAG_PRAGMA(ignored RAPIDJSON_STRINGIFY(RAPIDJSON_JOIN(-W,x)))
-
-// push/pop support in Clang and GCC>=4.6
-#if defined(__clang__) || (defined(RAPIDJSON_GNUC) && RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,6,0))
-#define RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PRAGMA(push)
-#define RAPIDJSON_DIAG_POP  RAPIDJSON_DIAG_PRAGMA(pop)
-#else // GCC >= 4.2, < 4.6
-#define RAPIDJSON_DIAG_PUSH /* ignored */
-#define RAPIDJSON_DIAG_POP /* ignored */
-#endif
-
-#elif defined(_MSC_VER)
-
-// pragma (MSVC specific)
-#define RAPIDJSON_PRAGMA(x) __pragma(x)
-#define RAPIDJSON_DIAG_PRAGMA(x) RAPIDJSON_PRAGMA(warning(x))
-
-#define RAPIDJSON_DIAG_OFF(x) RAPIDJSON_DIAG_PRAGMA(disable: x)
-#define RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PRAGMA(push)
-#define RAPIDJSON_DIAG_POP  RAPIDJSON_DIAG_PRAGMA(pop)
-
-#else
-
-#define RAPIDJSON_DIAG_OFF(x) /* ignored */
-#define RAPIDJSON_DIAG_PUSH   /* ignored */
-#define RAPIDJSON_DIAG_POP    /* ignored */
-
-#endif // RAPIDJSON_DIAG_*
-
-///////////////////////////////////////////////////////////////////////////////
-// C++11 features
-
-#ifndef RAPIDJSON_HAS_CXX11_RVALUE_REFS
-#if defined(__clang__)
-#if __has_feature(cxx_rvalue_references) && \
-    (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__) && __GLIBCXX__ >= 20080306)
-#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
-#else
-#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0
-#endif
-#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,3,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \
-      (defined(_MSC_VER) && _MSC_VER >= 1600)
-
-#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
-#else
-#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0
-#endif
-#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS
-
-#ifndef RAPIDJSON_HAS_CXX11_NOEXCEPT
-#if defined(__clang__)
-#define RAPIDJSON_HAS_CXX11_NOEXCEPT __has_feature(cxx_noexcept)
-#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,6,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__))
-//    (defined(_MSC_VER) && _MSC_VER >= ????) // not yet supported
-#define RAPIDJSON_HAS_CXX11_NOEXCEPT 1
-#else
-#define RAPIDJSON_HAS_CXX11_NOEXCEPT 0
-#endif
-#endif
-#if RAPIDJSON_HAS_CXX11_NOEXCEPT
-#define RAPIDJSON_NOEXCEPT noexcept
-#else
-#define RAPIDJSON_NOEXCEPT /* noexcept */
-#endif // RAPIDJSON_HAS_CXX11_NOEXCEPT
-
-// no automatic detection, yet
-#ifndef RAPIDJSON_HAS_CXX11_TYPETRAITS
-#define RAPIDJSON_HAS_CXX11_TYPETRAITS 0
-#endif
-
-#ifndef RAPIDJSON_HAS_CXX11_RANGE_FOR
-#if defined(__clang__)
-#define RAPIDJSON_HAS_CXX11_RANGE_FOR __has_feature(cxx_range_for)
-#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,3,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \
-      (defined(_MSC_VER) && _MSC_VER >= 1700)
-#define RAPIDJSON_HAS_CXX11_RANGE_FOR 1
-#else
-#define RAPIDJSON_HAS_CXX11_RANGE_FOR 0
-#endif
-#endif // RAPIDJSON_HAS_CXX11_RANGE_FOR
-
-//!@endcond
-
-///////////////////////////////////////////////////////////////////////////////
-// new/delete
-
-#ifndef RAPIDJSON_NEW
-///! customization point for global \c new
-#define RAPIDJSON_NEW(x) new x
-#endif
-#ifndef RAPIDJSON_DELETE
-///! customization point for global \c delete
-#define RAPIDJSON_DELETE(x) delete x
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-// Type
-
-/*! \namespace rapidjson
-    \brief main RapidJSON namespace
-    \see RAPIDJSON_NAMESPACE
-*/
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Type of JSON value
-enum Type {
-    kNullType = 0,      //!< null
-    kFalseType = 1,     //!< false
-    kTrueType = 2,      //!< true
-    kObjectType = 3,    //!< object
-    kArrayType = 4,     //!< array 
-    kStringType = 5,    //!< string
-    kNumberType = 6     //!< number
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_RAPIDJSON_H_
diff --git a/third_party/rapidjson/reader.h b/third_party/rapidjson/reader.h
deleted file mode 100644
index ec6bc4ce..00000000
--- a/third_party/rapidjson/reader.h
+++ /dev/null
@@ -1,2113 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_READER_H_
-#define RAPIDJSON_READER_H_
-
-/*! \file reader.h */
-
-#include <limits>
-#include "allocators.h"
-#include "encodedstream.h"
-#include "rapidjson/internal/meta.h"
-#include "rapidjson/internal/stack.h"
-#include "rapidjson/internal/strtod.h"
-#include "stream.h"
-
-#if defined(RAPIDJSON_SIMD) && defined(_MSC_VER)
-#include <intrin.h>
-#pragma intrinsic(_BitScanForward)
-#endif
-#ifdef RAPIDJSON_SSE42
-#include <nmmintrin.h>
-#elif defined(RAPIDJSON_SSE2)
-#include <emmintrin.h>
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4127)  // conditional expression is constant
-RAPIDJSON_DIAG_OFF(4702)  // unreachable code
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(old - style - cast)
-RAPIDJSON_DIAG_OFF(padded)
-RAPIDJSON_DIAG_OFF(switch - enum)
-#endif
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-#define RAPIDJSON_NOTHING /* deliberately empty */
-#ifndef RAPIDJSON_PARSE_ERROR_EARLY_RETURN
-#define RAPIDJSON_PARSE_ERROR_EARLY_RETURN(value) \
-  RAPIDJSON_MULTILINEMACRO_BEGIN                  \
-  if (RAPIDJSON_UNLIKELY(HasParseError())) {      \
-    return value;                                 \
-  }                                               \
-  RAPIDJSON_MULTILINEMACRO_END
-#endif
-#define RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID \
-  RAPIDJSON_PARSE_ERROR_EARLY_RETURN(RAPIDJSON_NOTHING)
-//!@endcond
-
-/*! \def RAPIDJSON_PARSE_ERROR_NORETURN
-    \ingroup RAPIDJSON_ERRORS
-    \brief Macro to indicate a parse error.
-    \param parseErrorCode \ref rapidjson::ParseErrorCode of the error
-    \param offset  position of the error in JSON input (\c size_t)
-
-    This macros can be used as a customization point for the internal
-    error handling mechanism of RapidJSON.
-
-    A common usage model is to throw an exception instead of requiring the
-    caller to explicitly check the \ref rapidjson::GenericReader::Parse's
-    return value:
-
-    \code
-    #define RAPIDJSON_PARSE_ERROR_NORETURN(parseErrorCode,offset) \
-       throw ParseException(parseErrorCode, #parseErrorCode, offset)
-
-    #include <stdexcept>               // std::runtime_error
-    #include "rapidjson/error/error.h" // rapidjson::ParseResult
-
-    struct ParseException : std::runtime_error, rapidjson::ParseResult {
-      ParseException(rapidjson::ParseErrorCode code, const char* msg, size_t
-   offset) : std::runtime_error(msg), ParseResult(code, offset) {}
-    };
-
-    #include "rapidjson/reader.h"
-    \endcode
-
-    \see RAPIDJSON_PARSE_ERROR, rapidjson::GenericReader::Parse
- */
-#ifndef RAPIDJSON_PARSE_ERROR_NORETURN
-#define RAPIDJSON_PARSE_ERROR_NORETURN(parseErrorCode, offset)              \
-  RAPIDJSON_MULTILINEMACRO_BEGIN                                            \
-  RAPIDJSON_ASSERT(!HasParseError()); /* Error can only be assigned once */ \
-  SetParseError(parseErrorCode, offset);                                    \
-  RAPIDJSON_MULTILINEMACRO_END
-#endif
-
-/*! \def RAPIDJSON_PARSE_ERROR
-    \ingroup RAPIDJSON_ERRORS
-    \brief (Internal) macro to indicate and handle a parse error.
-    \param parseErrorCode \ref rapidjson::ParseErrorCode of the error
-    \param offset  position of the error in JSON input (\c size_t)
-
-    Invokes RAPIDJSON_PARSE_ERROR_NORETURN and stops the parsing.
-
-    \see RAPIDJSON_PARSE_ERROR_NORETURN
-    \hideinitializer
- */
-#ifndef RAPIDJSON_PARSE_ERROR
-#define RAPIDJSON_PARSE_ERROR(parseErrorCode, offset)     \
-  RAPIDJSON_MULTILINEMACRO_BEGIN                          \
-  RAPIDJSON_PARSE_ERROR_NORETURN(parseErrorCode, offset); \
-  RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;                \
-  RAPIDJSON_MULTILINEMACRO_END
-#endif
-
-#include "rapidjson/error/error.h"  // ParseErrorCode, ParseResult
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-// ParseFlag
-
-/*! \def RAPIDJSON_PARSE_DEFAULT_FLAGS
-    \ingroup RAPIDJSON_CONFIG
-    \brief User-defined kParseDefaultFlags definition.
-
-    User can define this as any \c ParseFlag combinations.
-*/
-#ifndef RAPIDJSON_PARSE_DEFAULT_FLAGS
-#define RAPIDJSON_PARSE_DEFAULT_FLAGS kParseNoFlags
-#endif
-
-//! Combination of parseFlags
-/*! \see Reader::Parse, Document::Parse, Document::ParseInsitu,
- * Document::ParseStream
- */
-enum ParseFlag {
-  kParseNoFlags = 0,               //!< No flags are set.
-  kParseInsituFlag = 1,            //!< In-situ(destructive) parsing.
-  kParseValidateEncodingFlag = 2,  //!< Validate encoding of JSON strings.
-  kParseIterativeFlag = 4,  //!< Iterative(constant complexity in terms of
-                            //!< function call stack size) parsing.
-  kParseStopWhenDoneFlag =
-      8,  //!< After parsing a complete JSON root from stream, stop further
-          //!< processing the rest of stream. When this flag is used, parser
-          //!< will not generate kParseErrorDocumentRootNotSingular error.
-  kParseFullPrecisionFlag =
-      16,  //!< Parse number in full precision (but slower).
-  kParseCommentsFlag =
-      32,  //!< Allow one-line (//) and multi-line (/**/) comments.
-  kParseNumbersAsStringsFlag =
-      64,  //!< Parse all numbers (ints/doubles) as strings.
-  kParseTrailingCommasFlag =
-      128,  //!< Allow trailing commas at the end of objects and arrays.
-  kParseNanAndInfFlag = 256,  //!< Allow parsing NaN, Inf, Infinity, -Inf and
-                              //!< -Infinity as doubles.
-  kParseDefaultFlags =
-      RAPIDJSON_PARSE_DEFAULT_FLAGS  //!< Default parse flags. Can be customized
-                                     //!< by defining
-                                     //!< RAPIDJSON_PARSE_DEFAULT_FLAGS
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// Handler
-
-/*! \class rapidjson::Handler
-    \brief Concept for receiving events from GenericReader upon parsing.
-    The functions return true if no error occurs. If they return false,
-    the event publisher should terminate the process.
-\code
-concept Handler {
-    typename Ch;
-
-    bool Null();
-    bool Bool(bool b);
-    bool Int(int i);
-    bool Uint(unsigned i);
-    bool Int64(int64_t i);
-    bool Uint64(uint64_t i);
-    bool Double(double d);
-    /// enabled via kParseNumbersAsStringsFlag, string is not null-terminated
-(use length) bool RawNumber(const Ch* str, SizeType length, bool copy); bool
-String(const Ch* str, SizeType length, bool copy); bool StartObject(); bool
-Key(const Ch* str, SizeType length, bool copy); bool EndObject(SizeType
-memberCount); bool StartArray(); bool EndArray(SizeType elementCount);
-};
-\endcode
-*/
-///////////////////////////////////////////////////////////////////////////////
-// BaseReaderHandler
-
-//! Default implementation of Handler.
-/*! This can be used as base class of any reader handler.
-    \note implements Handler concept
-*/
-template <typename Encoding = UTF8<>, typename Derived = void>
-struct BaseReaderHandler {
-  typedef typename Encoding::Ch Ch;
-
-  typedef typename internal::SelectIf<internal::IsSame<Derived, void>,
-                                      BaseReaderHandler,
-                                      Derived>::Type Override;
-
-  bool Default() { return true; }
-  bool Null() { return static_cast<Override&>(*this).Default(); }
-  bool Bool(bool) { return static_cast<Override&>(*this).Default(); }
-  bool Int(int) { return static_cast<Override&>(*this).Default(); }
-  bool Uint(unsigned) { return static_cast<Override&>(*this).Default(); }
-  bool Int64(int64_t) { return static_cast<Override&>(*this).Default(); }
-  bool Uint64(uint64_t) { return static_cast<Override&>(*this).Default(); }
-  bool Double(double) { return static_cast<Override&>(*this).Default(); }
-  /// enabled via kParseNumbersAsStringsFlag, string is not null-terminated (use
-  /// length)
-  bool RawNumber(const Ch* str, SizeType len, bool copy) {
-    return static_cast<Override&>(*this).String(str, len, copy);
-  }
-  bool String(const Ch*, SizeType, bool) {
-    return static_cast<Override&>(*this).Default();
-  }
-  bool StartObject() { return static_cast<Override&>(*this).Default(); }
-  bool Key(const Ch* str, SizeType len, bool copy) {
-    return static_cast<Override&>(*this).String(str, len, copy);
-  }
-  bool EndObject(SizeType) { return static_cast<Override&>(*this).Default(); }
-  bool StartArray() { return static_cast<Override&>(*this).Default(); }
-  bool EndArray(SizeType) { return static_cast<Override&>(*this).Default(); }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// StreamLocalCopy
-
-namespace internal {
-
-template <typename Stream, int = StreamTraits<Stream>::copyOptimization>
-class StreamLocalCopy;
-
-//! Do copy optimization.
-template <typename Stream>
-class StreamLocalCopy<Stream, 1> {
- public:
-  StreamLocalCopy(Stream& original) : s(original), original_(original) {}
-  ~StreamLocalCopy() { original_ = s; }
-
-  Stream s;
-
- private:
-  StreamLocalCopy& operator=(const StreamLocalCopy&) /* = delete */;
-
-  Stream& original_;
-};
-
-//! Keep reference.
-template <typename Stream>
-class StreamLocalCopy<Stream, 0> {
- public:
-  StreamLocalCopy(Stream& original) : s(original) {}
-
-  Stream& s;
-
- private:
-  StreamLocalCopy& operator=(const StreamLocalCopy&) /* = delete */;
-};
-
-}  // namespace internal
-
-///////////////////////////////////////////////////////////////////////////////
-// SkipWhitespace
-
-//! Skip the JSON white spaces in a stream.
-/*! \param is A input stream for skipping white spaces.
-    \note This function has SSE2/SSE4.2 specialization.
-*/
-template <typename InputStream>
-void SkipWhitespace(InputStream& is) {
-  internal::StreamLocalCopy<InputStream> copy(is);
-  InputStream& s(copy.s);
-
-  typename InputStream::Ch c;
-  while ((c = s.Peek()) == ' ' || c == '\n' || c == '\r' || c == '\t')
-    s.Take();
-}
-
-inline const char* SkipWhitespace(const char* p, const char* end) {
-  while (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t'))
-    ++p;
-  return p;
-}
-
-#ifdef RAPIDJSON_SSE42
-//! Skip whitespace with SSE 4.2 pcmpistrm instruction, testing 16 8-byte
-//! characters at once.
-inline const char* SkipWhitespace_SIMD(const char* p) {
-  // Fast return for single non-whitespace
-  if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
-    ++p;
-  else
-    return p;
-
-  // 16-byte align to the next boundary
-  const char* nextAligned = reinterpret_cast<const char*>(
-      (reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
-  while (p != nextAligned)
-    if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
-      ++p;
-    else
-      return p;
-
-  // The rest of string using SIMD
-  static const char whitespace[16] = " \n\r\t";
-  const __m128i w =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespace[0]));
-
-  for (;; p += 16) {
-    const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i*>(p));
-    const int r = _mm_cvtsi128_si32(
-        _mm_cmpistrm(w, s,
-                     _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_BIT_MASK |
-                         _SIDD_NEGATIVE_POLARITY));
-    if (r != 0) {  // some of characters is non-whitespace
-#ifdef _MSC_VER    // Find the index of first non-whitespace
-      unsigned long offset;
-      _BitScanForward(&offset, r);
-      return p + offset;
-#else
-      return p + __builtin_ffs(r) - 1;
-#endif
-    }
-  }
-}
-
-inline const char* SkipWhitespace_SIMD(const char* p, const char* end) {
-  // Fast return for single non-whitespace
-  if (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t'))
-    ++p;
-  else
-    return p;
-
-  // The middle of string using SIMD
-  static const char whitespace[16] = " \n\r\t";
-  const __m128i w =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespace[0]));
-
-  for (; p <= end - 16; p += 16) {
-    const __m128i s = _mm_loadu_si128(reinterpret_cast<const __m128i*>(p));
-    const int r = _mm_cvtsi128_si32(
-        _mm_cmpistrm(w, s,
-                     _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_BIT_MASK |
-                         _SIDD_NEGATIVE_POLARITY));
-    if (r != 0) {  // some of characters is non-whitespace
-#ifdef _MSC_VER    // Find the index of first non-whitespace
-      unsigned long offset;
-      _BitScanForward(&offset, r);
-      return p + offset;
-#else
-      return p + __builtin_ffs(r) - 1;
-#endif
-    }
-  }
-
-  return SkipWhitespace(p, end);
-}
-
-#elif defined(RAPIDJSON_SSE2)
-
-//! Skip whitespace with SSE2 instructions, testing 16 8-byte characters at
-//! once.
-inline const char* SkipWhitespace_SIMD(const char* p) {
-  // Fast return for single non-whitespace
-  if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
-    ++p;
-  else
-    return p;
-
-  // 16-byte align to the next boundary
-  const char* nextAligned = reinterpret_cast<const char*>(
-      (reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
-  while (p != nextAligned)
-    if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
-      ++p;
-    else
-      return p;
-
-// The rest of string
-#define C16(c) \
-  { c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c }
-  static const char whitespaces[4][16] = {C16(' '), C16('\n'), C16('\r'),
-                                          C16('\t')};
-#undef C16
-
-  const __m128i w0 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[0][0]));
-  const __m128i w1 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[1][0]));
-  const __m128i w2 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[2][0]));
-  const __m128i w3 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[3][0]));
-
-  for (;; p += 16) {
-    const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i*>(p));
-    __m128i x = _mm_cmpeq_epi8(s, w0);
-    x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w1));
-    x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w2));
-    x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w3));
-    unsigned short r = static_cast<unsigned short>(~_mm_movemask_epi8(x));
-    if (r != 0) {  // some of characters may be non-whitespace
-#ifdef _MSC_VER  // Find the index of first non-whitespace
-      unsigned long offset;
-      _BitScanForward(&offset, r);
-      return p + offset;
-#else
-      return p + __builtin_ffs(r) - 1;
-#endif
-    }
-  }
-}
-
-inline const char* SkipWhitespace_SIMD(const char* p, const char* end) {
-  // Fast return for single non-whitespace
-  if (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t'))
-    ++p;
-  else
-    return p;
-
-// The rest of string
-#define C16(c) \
-  { c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c }
-  static const char whitespaces[4][16] = {C16(' '), C16('\n'), C16('\r'),
-                                          C16('\t')};
-#undef C16
-
-  const __m128i w0 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[0][0]));
-  const __m128i w1 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[1][0]));
-  const __m128i w2 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[2][0]));
-  const __m128i w3 =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&whitespaces[3][0]));
-
-  for (; p <= end - 16; p += 16) {
-    const __m128i s = _mm_loadu_si128(reinterpret_cast<const __m128i*>(p));
-    __m128i x = _mm_cmpeq_epi8(s, w0);
-    x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w1));
-    x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w2));
-    x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w3));
-    unsigned short r = static_cast<unsigned short>(~_mm_movemask_epi8(x));
-    if (r != 0) {  // some of characters may be non-whitespace
-#ifdef _MSC_VER  // Find the index of first non-whitespace
-      unsigned long offset;
-      _BitScanForward(&offset, r);
-      return p + offset;
-#else
-      return p + __builtin_ffs(r) - 1;
-#endif
-    }
-  }
-
-  return SkipWhitespace(p, end);
-}
-
-#endif  // RAPIDJSON_SSE2
-
-#ifdef RAPIDJSON_SIMD
-//! Template function specialization for InsituStringStream
-template <>
-inline void SkipWhitespace(InsituStringStream& is) {
-  is.src_ = const_cast<char*>(SkipWhitespace_SIMD(is.src_));
-}
-
-//! Template function specialization for StringStream
-template <>
-inline void SkipWhitespace(StringStream& is) {
-  is.src_ = SkipWhitespace_SIMD(is.src_);
-}
-
-template <>
-inline void SkipWhitespace(EncodedInputStream<UTF8<>, MemoryStream>& is) {
-  is.is_.src_ = SkipWhitespace_SIMD(is.is_.src_, is.is_.end_);
-}
-#endif  // RAPIDJSON_SIMD
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericReader
-
-//! SAX-style JSON parser. Use \ref Reader for UTF8 encoding and default
-//! allocator.
-/*! GenericReader parses JSON text from a stream, and send events synchronously
-   to an object implementing Handler concept.
-
-    It needs to allocate a stack for storing a single decoded string during
-    non-destructive parsing.
-
-    For in-situ parsing, the decoded string is directly written to the source
-    text string, no temporary buffer is required.
-
-    A GenericReader object can be reused for parsing multiple JSON text.
-
-    \tparam SourceEncoding Encoding of the input stream.
-    \tparam TargetEncoding Encoding of the parse output.
-    \tparam StackAllocator Allocator type for stack.
-*/
-template <typename SourceEncoding,
-          typename TargetEncoding,
-          typename StackAllocator = CrtAllocator>
-class GenericReader {
- public:
-  typedef typename SourceEncoding::Ch Ch;  //!< SourceEncoding character type
-
-  //! Constructor.
-  /*! \param stackAllocator Optional allocator for allocating stack memory.
-     (Only use for non-destructive parsing) \param stackCapacity stack capacity
-     in bytes for storing a single decoded string.  (Only use for
-     non-destructive parsing)
-  */
-  GenericReader(StackAllocator* stackAllocator = 0,
-                size_t stackCapacity = kDefaultStackCapacity)
-      : stack_(stackAllocator, stackCapacity), parseResult_() {}
-
-  //! Parse JSON text.
-  /*! \tparam parseFlags Combination of \ref ParseFlag.
-      \tparam InputStream Type of input stream, implementing Stream concept.
-      \tparam Handler Type of handler, implementing Handler concept.
-      \param is Input stream to be parsed.
-      \param handler The handler to receive events.
-      \return Whether the parsing is successful.
-  */
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  ParseResult Parse(InputStream& is, Handler& handler) {
-    if (parseFlags & kParseIterativeFlag)
-      return IterativeParse<parseFlags>(is, handler);
-
-    parseResult_.Clear();
-
-    ClearStackOnExit scope(*this);
-
-    SkipWhitespaceAndComments<parseFlags>(is);
-    RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-
-    if (RAPIDJSON_UNLIKELY(is.Peek() == '\0')) {
-      RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorDocumentEmpty, is.Tell());
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-    } else {
-      ParseValue<parseFlags>(is, handler);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-
-      if (!(parseFlags & kParseStopWhenDoneFlag)) {
-        SkipWhitespaceAndComments<parseFlags>(is);
-        RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-
-        if (RAPIDJSON_UNLIKELY(is.Peek() != '\0')) {
-          RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorDocumentRootNotSingular,
-                                         is.Tell());
-          RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-        }
-      }
-    }
-
-    return parseResult_;
-  }
-
-  //! Parse JSON text (with \ref kParseDefaultFlags)
-  /*! \tparam InputStream Type of input stream, implementing Stream concept
-      \tparam Handler Type of handler, implementing Handler concept.
-      \param is Input stream to be parsed.
-      \param handler The handler to receive events.
-      \return Whether the parsing is successful.
-  */
-  template <typename InputStream, typename Handler>
-  ParseResult Parse(InputStream& is, Handler& handler) {
-    return Parse<kParseDefaultFlags>(is, handler);
-  }
-
-  //! Whether a parse error has occured in the last parsing.
-  bool HasParseError() const { return parseResult_.IsError(); }
-
-  //! Get the \ref ParseErrorCode of last parsing.
-  ParseErrorCode GetParseErrorCode() const { return parseResult_.Code(); }
-
-  //! Get the position of last parsing error in input, 0 otherwise.
-  size_t GetErrorOffset() const { return parseResult_.Offset(); }
-
- protected:
-  void SetParseError(ParseErrorCode code, size_t offset) {
-    parseResult_.Set(code, offset);
-  }
-
- private:
-  // Prohibit copy constructor & assignment operator.
-  GenericReader(const GenericReader&);
-  GenericReader& operator=(const GenericReader&);
-
-  void ClearStack() { stack_.Clear(); }
-
-  // clear stack on any exit from ParseStream, e.g. due to exception
-  struct ClearStackOnExit {
-    explicit ClearStackOnExit(GenericReader& r) : r_(r) {}
-    ~ClearStackOnExit() { r_.ClearStack(); }
-
-   private:
-    GenericReader& r_;
-    ClearStackOnExit(const ClearStackOnExit&);
-    ClearStackOnExit& operator=(const ClearStackOnExit&);
-  };
-
-  template <unsigned parseFlags, typename InputStream>
-  void SkipWhitespaceAndComments(InputStream& is) {
-    SkipWhitespace(is);
-
-    if (parseFlags & kParseCommentsFlag) {
-      while (RAPIDJSON_UNLIKELY(Consume(is, '/'))) {
-        if (Consume(is, '*')) {
-          while (true) {
-            if (RAPIDJSON_UNLIKELY(is.Peek() == '\0'))
-              RAPIDJSON_PARSE_ERROR(kParseErrorUnspecificSyntaxError,
-                                    is.Tell());
-            else if (Consume(is, '*')) {
-              if (Consume(is, '/'))
-                break;
-            } else
-              is.Take();
-          }
-        } else if (RAPIDJSON_LIKELY(Consume(is, '/')))
-          while (is.Peek() != '\0' && is.Take() != '\n')
-            ;
-        else
-          RAPIDJSON_PARSE_ERROR(kParseErrorUnspecificSyntaxError, is.Tell());
-
-        SkipWhitespace(is);
-      }
-    }
-  }
-
-  // Parse object: { string : value, ... }
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseObject(InputStream& is, Handler& handler) {
-    RAPIDJSON_ASSERT(is.Peek() == '{');
-    is.Take();  // Skip '{'
-
-    if (RAPIDJSON_UNLIKELY(!handler.StartObject()))
-      RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-
-    SkipWhitespaceAndComments<parseFlags>(is);
-    RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-    if (Consume(is, '}')) {
-      if (RAPIDJSON_UNLIKELY(!handler.EndObject(0)))  // empty object
-        RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-      return;
-    }
-
-    for (SizeType memberCount = 0;;) {
-      if (RAPIDJSON_UNLIKELY(is.Peek() != '"'))
-        RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissName, is.Tell());
-
-      ParseString<parseFlags>(is, handler, true);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      SkipWhitespaceAndComments<parseFlags>(is);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      if (RAPIDJSON_UNLIKELY(!Consume(is, ':')))
-        RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissColon, is.Tell());
-
-      SkipWhitespaceAndComments<parseFlags>(is);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      ParseValue<parseFlags>(is, handler);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      SkipWhitespaceAndComments<parseFlags>(is);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      ++memberCount;
-
-      switch (is.Peek()) {
-        case ',':
-          is.Take();
-          SkipWhitespaceAndComments<parseFlags>(is);
-          RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-          break;
-        case '}':
-          is.Take();
-          if (RAPIDJSON_UNLIKELY(!handler.EndObject(memberCount)))
-            RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-          return;
-        default:
-          RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissCommaOrCurlyBracket,
-                                is.Tell());
-          break;  // This useless break is only for making warning and coverage
-                  // happy
-      }
-
-      if (parseFlags & kParseTrailingCommasFlag) {
-        if (is.Peek() == '}') {
-          if (RAPIDJSON_UNLIKELY(!handler.EndObject(memberCount)))
-            RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-          is.Take();
-          return;
-        }
-      }
-    }
-  }
-
-  // Parse array: [ value, ... ]
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseArray(InputStream& is, Handler& handler) {
-    RAPIDJSON_ASSERT(is.Peek() == '[');
-    is.Take();  // Skip '['
-
-    if (RAPIDJSON_UNLIKELY(!handler.StartArray()))
-      RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-
-    SkipWhitespaceAndComments<parseFlags>(is);
-    RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-    if (Consume(is, ']')) {
-      if (RAPIDJSON_UNLIKELY(!handler.EndArray(0)))  // empty array
-        RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-      return;
-    }
-
-    for (SizeType elementCount = 0;;) {
-      ParseValue<parseFlags>(is, handler);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      ++elementCount;
-      SkipWhitespaceAndComments<parseFlags>(is);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-
-      if (Consume(is, ',')) {
-        SkipWhitespaceAndComments<parseFlags>(is);
-        RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-      } else if (Consume(is, ']')) {
-        if (RAPIDJSON_UNLIKELY(!handler.EndArray(elementCount)))
-          RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-        return;
-      } else
-        RAPIDJSON_PARSE_ERROR(kParseErrorArrayMissCommaOrSquareBracket,
-                              is.Tell());
-
-      if (parseFlags & kParseTrailingCommasFlag) {
-        if (is.Peek() == ']') {
-          if (RAPIDJSON_UNLIKELY(!handler.EndArray(elementCount)))
-            RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-          is.Take();
-          return;
-        }
-      }
-    }
-  }
-
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseNull(InputStream& is, Handler& handler) {
-    RAPIDJSON_ASSERT(is.Peek() == 'n');
-    is.Take();
-
-    if (RAPIDJSON_LIKELY(Consume(is, 'u') && Consume(is, 'l') &&
-                         Consume(is, 'l'))) {
-      if (RAPIDJSON_UNLIKELY(!handler.Null()))
-        RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-    } else
-      RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell());
-  }
-
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseTrue(InputStream& is, Handler& handler) {
-    RAPIDJSON_ASSERT(is.Peek() == 't');
-    is.Take();
-
-    if (RAPIDJSON_LIKELY(Consume(is, 'r') && Consume(is, 'u') &&
-                         Consume(is, 'e'))) {
-      if (RAPIDJSON_UNLIKELY(!handler.Bool(true)))
-        RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-    } else
-      RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell());
-  }
-
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseFalse(InputStream& is, Handler& handler) {
-    RAPIDJSON_ASSERT(is.Peek() == 'f');
-    is.Take();
-
-    if (RAPIDJSON_LIKELY(Consume(is, 'a') && Consume(is, 'l') &&
-                         Consume(is, 's') && Consume(is, 'e'))) {
-      if (RAPIDJSON_UNLIKELY(!handler.Bool(false)))
-        RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell());
-    } else
-      RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell());
-  }
-
-  template <typename InputStream>
-  RAPIDJSON_FORCEINLINE static bool Consume(InputStream& is,
-                                            typename InputStream::Ch expect) {
-    if (RAPIDJSON_LIKELY(is.Peek() == expect)) {
-      is.Take();
-      return true;
-    } else
-      return false;
-  }
-
-  // Helper function to parse four hexidecimal digits in \uXXXX in
-  // ParseString().
-  template <typename InputStream>
-  unsigned ParseHex4(InputStream& is, size_t escapeOffset) {
-    unsigned codepoint = 0;
-    for (int i = 0; i < 4; i++) {
-      Ch c = is.Peek();
-      codepoint <<= 4;
-      codepoint += static_cast<unsigned>(c);
-      if (c >= '0' && c <= '9')
-        codepoint -= '0';
-      else if (c >= 'A' && c <= 'F')
-        codepoint -= 'A' - 10;
-      else if (c >= 'a' && c <= 'f')
-        codepoint -= 'a' - 10;
-      else {
-        RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorStringUnicodeEscapeInvalidHex,
-                                       escapeOffset);
-        RAPIDJSON_PARSE_ERROR_EARLY_RETURN(0);
-      }
-      is.Take();
-    }
-    return codepoint;
-  }
-
-  template <typename CharType>
-  class StackStream {
-   public:
-    typedef CharType Ch;
-
-    StackStream(internal::Stack<StackAllocator>& stack)
-        : stack_(stack), length_(0) {}
-    RAPIDJSON_FORCEINLINE void Put(Ch c) {
-      *stack_.template Push<Ch>() = c;
-      ++length_;
-    }
-
-    RAPIDJSON_FORCEINLINE void* Push(SizeType count) {
-      length_ += count;
-      return stack_.template Push<Ch>(count);
-    }
-
-    size_t Length() const { return length_; }
-
-    Ch* Pop() { return stack_.template Pop<Ch>(length_); }
-
-   private:
-    StackStream(const StackStream&);
-    StackStream& operator=(const StackStream&);
-
-    internal::Stack<StackAllocator>& stack_;
-    SizeType length_;
-  };
-
-  // Parse string and generate String event. Different code paths for
-  // kParseInsituFlag.
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseString(InputStream& is, Handler& handler, bool isKey = false) {
-    internal::StreamLocalCopy<InputStream> copy(is);
-    InputStream& s(copy.s);
-
-    RAPIDJSON_ASSERT(s.Peek() == '\"');
-    s.Take();  // Skip '\"'
-
-    bool success = false;
-    if (parseFlags & kParseInsituFlag) {
-      typename InputStream::Ch* head = s.PutBegin();
-      ParseStringToStream<parseFlags, SourceEncoding, SourceEncoding>(s, s);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-      size_t length = s.PutEnd(head) - 1;
-      RAPIDJSON_ASSERT(length <= 0xFFFFFFFF);
-      const typename TargetEncoding::Ch* const str =
-          reinterpret_cast<typename TargetEncoding::Ch*>(head);
-      success = (isKey ? handler.Key(str, SizeType(length), false)
-                       : handler.String(str, SizeType(length), false));
-    } else {
-      StackStream<typename TargetEncoding::Ch> stackStream(stack_);
-      ParseStringToStream<parseFlags, SourceEncoding, TargetEncoding>(
-          s, stackStream);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-      SizeType length = static_cast<SizeType>(stackStream.Length()) - 1;
-      const typename TargetEncoding::Ch* const str = stackStream.Pop();
-      success = (isKey ? handler.Key(str, length, true)
-                       : handler.String(str, length, true));
-    }
-    if (RAPIDJSON_UNLIKELY(!success))
-      RAPIDJSON_PARSE_ERROR(kParseErrorTermination, s.Tell());
-  }
-
-  // Parse string to an output is
-  // This function handles the prefix/suffix double quotes, escaping, and
-  // optional encoding validation.
-  template <unsigned parseFlags,
-            typename SEncoding,
-            typename TEncoding,
-            typename InputStream,
-            typename OutputStream>
-  RAPIDJSON_FORCEINLINE void ParseStringToStream(InputStream& is,
-                                                 OutputStream& os) {
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-#define Z16 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-    static const char escape[256] = {
-        Z16, Z16, 0,    0,    '\"', 0,   0,    0,   0,   0,   0,  0,    0,
-        0,   0,   0,    0,    '/',  Z16, Z16,  0,   0,   0,   0,  0,    0,
-        0,   0,   0,    0,    0,    0,   '\\', 0,   0,   0,   0,  0,    '\b',
-        0,   0,   0,    '\f', 0,    0,   0,    0,   0,   0,   0,  '\n', 0,
-        0,   0,   '\r', 0,    '\t', 0,   0,    0,   0,   0,   0,  0,    0,
-        0,   0,   0,    Z16,  Z16,  Z16, Z16,  Z16, Z16, Z16, Z16};
-#undef Z16
-    //!@endcond
-
-    for (;;) {
-      // Scan and copy string before "\\\"" or < 0x20. This is an optional
-      // optimzation.
-      if (!(parseFlags & kParseValidateEncodingFlag))
-        ScanCopyUnescapedString(is, os);
-
-      Ch c = is.Peek();
-      if (RAPIDJSON_UNLIKELY(c == '\\')) {  // Escape
-        size_t escapeOffset = is.Tell();    // For invalid escaping, report the
-                                            // inital '\\' as error offset
-        is.Take();
-        Ch e = is.Peek();
-        if ((sizeof(Ch) == 1 || unsigned(e) < 256) &&
-            RAPIDJSON_LIKELY(escape[static_cast<unsigned char>(e)])) {
-          is.Take();
-          os.Put(static_cast<typename TEncoding::Ch>(
-              escape[static_cast<unsigned char>(e)]));
-        } else if (RAPIDJSON_LIKELY(e == 'u')) {  // Unicode
-          is.Take();
-          unsigned codepoint = ParseHex4(is, escapeOffset);
-          RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-          if (RAPIDJSON_UNLIKELY(codepoint >= 0xD800 && codepoint <= 0xDBFF)) {
-            // Handle UTF-16 surrogate pair
-            if (RAPIDJSON_UNLIKELY(!Consume(is, '\\') || !Consume(is, 'u')))
-              RAPIDJSON_PARSE_ERROR(kParseErrorStringUnicodeSurrogateInvalid,
-                                    escapeOffset);
-            unsigned codepoint2 = ParseHex4(is, escapeOffset);
-            RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID;
-            if (RAPIDJSON_UNLIKELY(codepoint2 < 0xDC00 || codepoint2 > 0xDFFF))
-              RAPIDJSON_PARSE_ERROR(kParseErrorStringUnicodeSurrogateInvalid,
-                                    escapeOffset);
-            codepoint = (((codepoint - 0xD800) << 10) | (codepoint2 - 0xDC00)) +
-                        0x10000;
-          }
-          TEncoding::Encode(os, codepoint);
-        } else
-          RAPIDJSON_PARSE_ERROR(kParseErrorStringEscapeInvalid, escapeOffset);
-      } else if (RAPIDJSON_UNLIKELY(c == '"')) {  // Closing double quote
-        is.Take();
-        os.Put('\0');  // null-terminate the string
-        return;
-      } else if (RAPIDJSON_UNLIKELY(static_cast<unsigned>(c) <
-                                    0x20)) {  // RFC 4627: unescaped = %x20-21 /
-                                              // %x23-5B / %x5D-10FFFF
-        if (c == '\0')
-          RAPIDJSON_PARSE_ERROR(kParseErrorStringMissQuotationMark, is.Tell());
-        else
-          RAPIDJSON_PARSE_ERROR(kParseErrorStringEscapeInvalid, is.Tell());
-      } else {
-        size_t offset = is.Tell();
-        if (RAPIDJSON_UNLIKELY(
-                (parseFlags & kParseValidateEncodingFlag
-                     ? !Transcoder<SEncoding, TEncoding>::Validate(is, os)
-                     : !Transcoder<SEncoding, TEncoding>::Transcode(is, os))))
-          RAPIDJSON_PARSE_ERROR(kParseErrorStringInvalidEncoding, offset);
-      }
-    }
-  }
-
-  template <typename InputStream, typename OutputStream>
-  static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(InputStream&,
-                                                            OutputStream&) {
-    // Do nothing for generic version
-  }
-
-#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42)
-  // StringStream -> StackStream<char>
-  static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(
-      StringStream& is,
-      StackStream<char>& os) {
-    const char* p = is.src_;
-
-    // Scan one by one until alignment (unaligned load may cross page boundary
-    // and cause crash)
-    const char* nextAligned = reinterpret_cast<const char*>(
-        (reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
-    while (p != nextAligned)
-      if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') ||
-          RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) {
-        is.src_ = p;
-        return;
-      } else
-        os.Put(*p++);
-
-    // The rest of string using SIMD
-    static const char dquote[16] = {'\"', '\"', '\"', '\"', '\"', '\"',
-                                    '\"', '\"', '\"', '\"', '\"', '\"',
-                                    '\"', '\"', '\"', '\"'};
-    static const char bslash[16] = {'\\', '\\', '\\', '\\', '\\', '\\',
-                                    '\\', '\\', '\\', '\\', '\\', '\\',
-                                    '\\', '\\', '\\', '\\'};
-    static const char space[16] = {0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                   0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                   0x19, 0x19, 0x19, 0x19};
-    const __m128i dq =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&dquote[0]));
-    const __m128i bs =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&bslash[0]));
-    const __m128i sp =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&space[0]));
-
-    for (;; p += 16) {
-      const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i*>(p));
-      const __m128i t1 = _mm_cmpeq_epi8(s, dq);
-      const __m128i t2 = _mm_cmpeq_epi8(s, bs);
-      const __m128i t3 = _mm_cmpeq_epi8(
-          _mm_max_epu8(s, sp), sp);  // s < 0x20 <=> max(s, 0x19) == 0x19
-      const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
-      unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
-      if (RAPIDJSON_UNLIKELY(r != 0)) {  // some of characters is escaped
-        SizeType length;
-#ifdef _MSC_VER  // Find the index of first escaped
-        unsigned long offset;
-        _BitScanForward(&offset, r);
-        length = offset;
-#else
-        length = static_cast<SizeType>(__builtin_ffs(r) - 1);
-#endif
-        char* q = reinterpret_cast<char*>(os.Push(length));
-        for (size_t i = 0; i < length; i++)
-          q[i] = p[i];
-
-        p += length;
-        break;
-      }
-      _mm_storeu_si128(reinterpret_cast<__m128i*>(os.Push(16)), s);
-    }
-
-    is.src_ = p;
-  }
-
-  // InsituStringStream -> InsituStringStream
-  static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(
-      InsituStringStream& is,
-      InsituStringStream& os) {
-    RAPIDJSON_ASSERT(&is == &os);
-    (void)os;
-
-    if (is.src_ == is.dst_) {
-      SkipUnescapedString(is);
-      return;
-    }
-
-    char* p = is.src_;
-    char* q = is.dst_;
-
-    // Scan one by one until alignment (unaligned load may cross page boundary
-    // and cause crash)
-    const char* nextAligned = reinterpret_cast<const char*>(
-        (reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
-    while (p != nextAligned)
-      if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') ||
-          RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) {
-        is.src_ = p;
-        is.dst_ = q;
-        return;
-      } else
-        *q++ = *p++;
-
-    // The rest of string using SIMD
-    static const char dquote[16] = {'\"', '\"', '\"', '\"', '\"', '\"',
-                                    '\"', '\"', '\"', '\"', '\"', '\"',
-                                    '\"', '\"', '\"', '\"'};
-    static const char bslash[16] = {'\\', '\\', '\\', '\\', '\\', '\\',
-                                    '\\', '\\', '\\', '\\', '\\', '\\',
-                                    '\\', '\\', '\\', '\\'};
-    static const char space[16] = {0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                   0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                   0x19, 0x19, 0x19, 0x19};
-    const __m128i dq =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&dquote[0]));
-    const __m128i bs =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&bslash[0]));
-    const __m128i sp =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&space[0]));
-
-    for (;; p += 16, q += 16) {
-      const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i*>(p));
-      const __m128i t1 = _mm_cmpeq_epi8(s, dq);
-      const __m128i t2 = _mm_cmpeq_epi8(s, bs);
-      const __m128i t3 = _mm_cmpeq_epi8(
-          _mm_max_epu8(s, sp), sp);  // s < 0x20 <=> max(s, 0x19) == 0x19
-      const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
-      unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
-      if (RAPIDJSON_UNLIKELY(r != 0)) {  // some of characters is escaped
-        size_t length;
-#ifdef _MSC_VER  // Find the index of first escaped
-        unsigned long offset;
-        _BitScanForward(&offset, r);
-        length = offset;
-#else
-        length = static_cast<size_t>(__builtin_ffs(r) - 1);
-#endif
-        for (const char* pend = p + length; p != pend;)
-          *q++ = *p++;
-        break;
-      }
-      _mm_storeu_si128(reinterpret_cast<__m128i*>(q), s);
-    }
-
-    is.src_ = p;
-    is.dst_ = q;
-  }
-
-  // When read/write pointers are the same for insitu stream, just skip
-  // unescaped characters
-  static RAPIDJSON_FORCEINLINE void SkipUnescapedString(
-      InsituStringStream& is) {
-    RAPIDJSON_ASSERT(is.src_ == is.dst_);
-    char* p = is.src_;
-
-    // Scan one by one until alignment (unaligned load may cross page boundary
-    // and cause crash)
-    const char* nextAligned = reinterpret_cast<const char*>(
-        (reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
-    for (; p != nextAligned; p++)
-      if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') ||
-          RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) {
-        is.src_ = is.dst_ = p;
-        return;
-      }
-
-    // The rest of string using SIMD
-    static const char dquote[16] = {'\"', '\"', '\"', '\"', '\"', '\"',
-                                    '\"', '\"', '\"', '\"', '\"', '\"',
-                                    '\"', '\"', '\"', '\"'};
-    static const char bslash[16] = {'\\', '\\', '\\', '\\', '\\', '\\',
-                                    '\\', '\\', '\\', '\\', '\\', '\\',
-                                    '\\', '\\', '\\', '\\'};
-    static const char space[16] = {0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                   0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                   0x19, 0x19, 0x19, 0x19};
-    const __m128i dq =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&dquote[0]));
-    const __m128i bs =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&bslash[0]));
-    const __m128i sp =
-        _mm_loadu_si128(reinterpret_cast<const __m128i*>(&space[0]));
-
-    for (;; p += 16) {
-      const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i*>(p));
-      const __m128i t1 = _mm_cmpeq_epi8(s, dq);
-      const __m128i t2 = _mm_cmpeq_epi8(s, bs);
-      const __m128i t3 = _mm_cmpeq_epi8(
-          _mm_max_epu8(s, sp), sp);  // s < 0x20 <=> max(s, 0x19) == 0x19
-      const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
-      unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
-      if (RAPIDJSON_UNLIKELY(r != 0)) {  // some of characters is escaped
-        size_t length;
-#ifdef _MSC_VER  // Find the index of first escaped
-        unsigned long offset;
-        _BitScanForward(&offset, r);
-        length = offset;
-#else
-        length = static_cast<size_t>(__builtin_ffs(r) - 1);
-#endif
-        p += length;
-        break;
-      }
-    }
-
-    is.src_ = is.dst_ = p;
-  }
-#endif
-
-  template <typename InputStream, bool backup, bool pushOnTake>
-  class NumberStream;
-
-  template <typename InputStream>
-  class NumberStream<InputStream, false, false> {
-   public:
-    typedef typename InputStream::Ch Ch;
-
-    NumberStream(GenericReader& reader, InputStream& s) : is(s) {
-      (void)reader;
-    }
-    ~NumberStream() {}
-
-    RAPIDJSON_FORCEINLINE Ch Peek() const { return is.Peek(); }
-    RAPIDJSON_FORCEINLINE Ch TakePush() { return is.Take(); }
-    RAPIDJSON_FORCEINLINE Ch Take() { return is.Take(); }
-    RAPIDJSON_FORCEINLINE void Push(char) {}
-
-    size_t Tell() { return is.Tell(); }
-    size_t Length() { return 0; }
-    const char* Pop() { return 0; }
-
-   protected:
-    NumberStream& operator=(const NumberStream&);
-
-    InputStream& is;
-  };
-
-  template <typename InputStream>
-  class NumberStream<InputStream, true, false>
-      : public NumberStream<InputStream, false, false> {
-    typedef NumberStream<InputStream, false, false> Base;
-
-   public:
-    NumberStream(GenericReader& reader, InputStream& is)
-        : Base(reader, is), stackStream(reader.stack_) {}
-    ~NumberStream() {}
-
-    RAPIDJSON_FORCEINLINE Ch TakePush() {
-      stackStream.Put(static_cast<char>(Base::is.Peek()));
-      return Base::is.Take();
-    }
-
-    RAPIDJSON_FORCEINLINE void Push(char c) { stackStream.Put(c); }
-
-    size_t Length() { return stackStream.Length(); }
-
-    const char* Pop() {
-      stackStream.Put('\0');
-      return stackStream.Pop();
-    }
-
-   private:
-    StackStream<char> stackStream;
-  };
-
-  template <typename InputStream>
-  class NumberStream<InputStream, true, true>
-      : public NumberStream<InputStream, true, false> {
-    typedef NumberStream<InputStream, true, false> Base;
-
-   public:
-    NumberStream(GenericReader& reader, InputStream& is) : Base(reader, is) {}
-    ~NumberStream() {}
-
-    RAPIDJSON_FORCEINLINE Ch Take() { return Base::TakePush(); }
-  };
-
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseNumber(InputStream& is, Handler& handler) {
-    internal::StreamLocalCopy<InputStream> copy(is);
-    NumberStream<InputStream,
-                 ((parseFlags & kParseNumbersAsStringsFlag) != 0)
-                     ? ((parseFlags & kParseInsituFlag) == 0)
-                     : ((parseFlags & kParseFullPrecisionFlag) != 0),
-                 (parseFlags & kParseNumbersAsStringsFlag) != 0 &&
-                     (parseFlags & kParseInsituFlag) == 0>
-        s(*this, copy.s);
-
-    size_t startOffset = s.Tell();
-    double d = 0.0;
-    bool useNanOrInf = false;
-
-    // Parse minus
-    bool minus = Consume(s, '-');
-
-    // Parse int: zero / ( digit1-9 *DIGIT )
-    unsigned i = 0;
-    uint64_t i64 = 0;
-    bool use64bit = false;
-    int significandDigit = 0;
-    if (RAPIDJSON_UNLIKELY(s.Peek() == '0')) {
-      i = 0;
-      s.TakePush();
-    } else if (RAPIDJSON_LIKELY(s.Peek() >= '1' && s.Peek() <= '9')) {
-      i = static_cast<unsigned>(s.TakePush() - '0');
-
-      if (minus)
-        while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-          if (RAPIDJSON_UNLIKELY(i >= 214748364)) {  // 2^31 = 2147483648
-            if (RAPIDJSON_LIKELY(i != 214748364 || s.Peek() > '8')) {
-              i64 = i;
-              use64bit = true;
-              break;
-            }
-          }
-          i = i * 10 + static_cast<unsigned>(s.TakePush() - '0');
-          significandDigit++;
-        }
-      else
-        while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-          if (RAPIDJSON_UNLIKELY(i >= 429496729)) {  // 2^32 - 1 = 4294967295
-            if (RAPIDJSON_LIKELY(i != 429496729 || s.Peek() > '5')) {
-              i64 = i;
-              use64bit = true;
-              break;
-            }
-          }
-          i = i * 10 + static_cast<unsigned>(s.TakePush() - '0');
-          significandDigit++;
-        }
-    }
-    // Parse NaN or Infinity here
-    else if ((parseFlags & kParseNanAndInfFlag) &&
-             RAPIDJSON_LIKELY((s.Peek() == 'I' || s.Peek() == 'N'))) {
-      useNanOrInf = true;
-      if (RAPIDJSON_LIKELY(Consume(s, 'N') && Consume(s, 'a') &&
-                           Consume(s, 'N'))) {
-        d = std::numeric_limits<double>::quiet_NaN();
-      } else if (RAPIDJSON_LIKELY(Consume(s, 'I') && Consume(s, 'n') &&
-                                  Consume(s, 'f'))) {
-        d = (minus ? -std::numeric_limits<double>::infinity()
-                   : std::numeric_limits<double>::infinity());
-        if (RAPIDJSON_UNLIKELY(s.Peek() == 'i' &&
-                               !(Consume(s, 'i') && Consume(s, 'n') &&
-                                 Consume(s, 'i') && Consume(s, 't') &&
-                                 Consume(s, 'y'))))
-          RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
-      } else
-        RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
-    } else
-      RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
-
-    // Parse 64bit int
-    bool useDouble = false;
-    if (use64bit) {
-      if (minus)
-        while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-          if (RAPIDJSON_UNLIKELY(
-                  i64 >=
-                  RAPIDJSON_UINT64_C2(
-                      0x0CCCCCCC, 0xCCCCCCCC)))  // 2^63 = 9223372036854775808
-            if (RAPIDJSON_LIKELY(
-                    i64 != RAPIDJSON_UINT64_C2(0x0CCCCCCC, 0xCCCCCCCC) ||
-                    s.Peek() > '8')) {
-              d = static_cast<double>(i64);
-              useDouble = true;
-              break;
-            }
-          i64 = i64 * 10 + static_cast<unsigned>(s.TakePush() - '0');
-          significandDigit++;
-        }
-      else
-        while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-          if (RAPIDJSON_UNLIKELY(
-                  i64 >= RAPIDJSON_UINT64_C2(
-                             0x19999999,
-                             0x99999999)))  // 2^64 - 1 = 18446744073709551615
-            if (RAPIDJSON_LIKELY(
-                    i64 != RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) ||
-                    s.Peek() > '5')) {
-              d = static_cast<double>(i64);
-              useDouble = true;
-              break;
-            }
-          i64 = i64 * 10 + static_cast<unsigned>(s.TakePush() - '0');
-          significandDigit++;
-        }
-    }
-
-    // Force double for big integer
-    if (useDouble) {
-      while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-        if (RAPIDJSON_UNLIKELY(d >= 1.7976931348623157e307))  // DBL_MAX / 10.0
-          RAPIDJSON_PARSE_ERROR(kParseErrorNumberTooBig, startOffset);
-        d = d * 10 + (s.TakePush() - '0');
-      }
-    }
-
-    // Parse frac = decimal-point 1*DIGIT
-    int expFrac = 0;
-    size_t decimalPosition;
-    if (Consume(s, '.')) {
-      decimalPosition = s.Length();
-
-      if (RAPIDJSON_UNLIKELY(!(s.Peek() >= '0' && s.Peek() <= '9')))
-        RAPIDJSON_PARSE_ERROR(kParseErrorNumberMissFraction, s.Tell());
-
-      if (!useDouble) {
-#if RAPIDJSON_64BIT
-        // Use i64 to store significand in 64-bit architecture
-        if (!use64bit)
-          i64 = i;
-
-        while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-          if (i64 > RAPIDJSON_UINT64_C2(0x1FFFFF,
-                                        0xFFFFFFFF))  // 2^53 - 1 for fast path
-            break;
-          else {
-            i64 = i64 * 10 + static_cast<unsigned>(s.TakePush() - '0');
-            --expFrac;
-            if (i64 != 0)
-              significandDigit++;
-          }
-        }
-
-        d = static_cast<double>(i64);
-#else
-        // Use double to store significand in 32-bit architecture
-        d = static_cast<double>(use64bit ? i64 : i);
-#endif
-        useDouble = true;
-      }
-
-      while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-        if (significandDigit < 17) {
-          d = d * 10.0 + (s.TakePush() - '0');
-          --expFrac;
-          if (RAPIDJSON_LIKELY(d > 0.0))
-            significandDigit++;
-        } else
-          s.TakePush();
-      }
-    } else
-      decimalPosition = s.Length();  // decimal position at the end of integer.
-
-    // Parse exp = e [ minus / plus ] 1*DIGIT
-    int exp = 0;
-    if (Consume(s, 'e') || Consume(s, 'E')) {
-      if (!useDouble) {
-        d = static_cast<double>(use64bit ? i64 : i);
-        useDouble = true;
-      }
-
-      bool expMinus = false;
-      if (Consume(s, '+'))
-        ;
-      else if (Consume(s, '-'))
-        expMinus = true;
-
-      if (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-        exp = static_cast<int>(s.Take() - '0');
-        if (expMinus) {
-          while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-            exp = exp * 10 + static_cast<int>(s.Take() - '0');
-            if (exp >= 214748364) {  // Issue #313: prevent overflow exponent
-              while (RAPIDJSON_UNLIKELY(
-                  s.Peek() >= '0' &&
-                  s.Peek() <= '9'))  // Consume the rest of exponent
-                s.Take();
-            }
-          }
-        } else {  // positive exp
-          int maxExp = 308 - expFrac;
-          while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
-            exp = exp * 10 + static_cast<int>(s.Take() - '0');
-            if (RAPIDJSON_UNLIKELY(exp > maxExp))
-              RAPIDJSON_PARSE_ERROR(kParseErrorNumberTooBig, startOffset);
-          }
-        }
-      } else
-        RAPIDJSON_PARSE_ERROR(kParseErrorNumberMissExponent, s.Tell());
-
-      if (expMinus)
-        exp = -exp;
-    }
-
-    // Finish parsing, call event according to the type of number.
-    bool cont = true;
-
-    if (parseFlags & kParseNumbersAsStringsFlag) {
-      if (parseFlags & kParseInsituFlag) {
-        s.Pop();  // Pop stack no matter if it will be used or not.
-        typename InputStream::Ch* head = is.PutBegin();
-        const size_t length = s.Tell() - startOffset;
-        RAPIDJSON_ASSERT(length <= 0xFFFFFFFF);
-        // unable to insert the \0 character here, it will erase the comma after
-        // this number
-        const typename TargetEncoding::Ch* const str =
-            reinterpret_cast<typename TargetEncoding::Ch*>(head);
-        cont = handler.RawNumber(str, SizeType(length), false);
-      } else {
-        SizeType numCharsToCopy = static_cast<SizeType>(s.Length());
-        StringStream srcStream(s.Pop());
-        StackStream<typename TargetEncoding::Ch> dstStream(stack_);
-        while (numCharsToCopy--) {
-          Transcoder<UTF8<>, TargetEncoding>::Transcode(srcStream, dstStream);
-        }
-        dstStream.Put('\0');
-        const typename TargetEncoding::Ch* str = dstStream.Pop();
-        const SizeType length = static_cast<SizeType>(dstStream.Length()) - 1;
-        cont = handler.RawNumber(str, SizeType(length), true);
-      }
-    } else {
-      size_t length = s.Length();
-      const char* decimal =
-          s.Pop();  // Pop stack no matter if it will be used or not.
-
-      if (useDouble) {
-        int p = exp + expFrac;
-        if (parseFlags & kParseFullPrecisionFlag)
-          d = internal::StrtodFullPrecision(d, p, decimal, length,
-                                            decimalPosition, exp);
-        else
-          d = internal::StrtodNormalPrecision(d, p);
-
-        cont = handler.Double(minus ? -d : d);
-      } else if (useNanOrInf) {
-        cont = handler.Double(d);
-      } else {
-        if (use64bit) {
-          if (minus)
-            cont = handler.Int64(static_cast<int64_t>(~i64 + 1));
-          else
-            cont = handler.Uint64(i64);
-        } else {
-          if (minus)
-            cont = handler.Int(static_cast<int32_t>(~i + 1));
-          else
-            cont = handler.Uint(i);
-        }
-      }
-    }
-    if (RAPIDJSON_UNLIKELY(!cont))
-      RAPIDJSON_PARSE_ERROR(kParseErrorTermination, startOffset);
-  }
-
-  // Parse any JSON value
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  void ParseValue(InputStream& is, Handler& handler) {
-    switch (is.Peek()) {
-      case 'n':
-        ParseNull<parseFlags>(is, handler);
-        break;
-      case 't':
-        ParseTrue<parseFlags>(is, handler);
-        break;
-      case 'f':
-        ParseFalse<parseFlags>(is, handler);
-        break;
-      case '"':
-        ParseString<parseFlags>(is, handler);
-        break;
-      case '{':
-        ParseObject<parseFlags>(is, handler);
-        break;
-      case '[':
-        ParseArray<parseFlags>(is, handler);
-        break;
-      default:
-        ParseNumber<parseFlags>(is, handler);
-        break;
-    }
-  }
-
-  // Iterative Parsing
-
-  // States
-  enum IterativeParsingState {
-    IterativeParsingStartState = 0,
-    IterativeParsingFinishState,
-    IterativeParsingErrorState,
-
-    // Object states
-    IterativeParsingObjectInitialState,
-    IterativeParsingMemberKeyState,
-    IterativeParsingKeyValueDelimiterState,
-    IterativeParsingMemberValueState,
-    IterativeParsingMemberDelimiterState,
-    IterativeParsingObjectFinishState,
-
-    // Array states
-    IterativeParsingArrayInitialState,
-    IterativeParsingElementState,
-    IterativeParsingElementDelimiterState,
-    IterativeParsingArrayFinishState,
-
-    // Single value state
-    IterativeParsingValueState
-  };
-
-  enum { cIterativeParsingStateCount = IterativeParsingValueState + 1 };
-
-  // Tokens
-  enum Token {
-    LeftBracketToken = 0,
-    RightBracketToken,
-
-    LeftCurlyBracketToken,
-    RightCurlyBracketToken,
-
-    CommaToken,
-    ColonToken,
-
-    StringToken,
-    FalseToken,
-    TrueToken,
-    NullToken,
-    NumberToken,
-
-    kTokenCount
-  };
-
-  RAPIDJSON_FORCEINLINE Token Tokenize(Ch c) {
-//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
-#define N NumberToken
-#define N16 N, N, N, N, N, N, N, N, N, N, N, N, N, N, N, N
-    // Maps from ASCII to Token
-    static const unsigned char tokenMap[256] = {
-        N16,  // 00~0F
-        N16,  // 10~1F
-        N,           N,
-        StringToken, N,
-        N,           N,
-        N,           N,
-        N,           N,
-        N,           N,
-        CommaToken,  N,
-        N,           N,  // 20~2F
-        N,           N,
-        N,           N,
-        N,           N,
-        N,           N,
-        N,           N,
-        ColonToken,  N,
-        N,           N,
-        N,           N,  // 30~3F
-        N16,             // 40~4F
-        N,           N,
-        N,           N,
-        N,           N,
-        N,           N,
-        N,           N,
-        N,           LeftBracketToken,
-        N,           RightBracketToken,
-        N,           N,  // 50~5F
-        N,           N,
-        N,           N,
-        N,           N,
-        FalseToken,  N,
-        N,           N,
-        N,           N,
-        N,           N,
-        NullToken,   N,  // 60~6F
-        N,           N,
-        N,           N,
-        TrueToken,   N,
-        N,           N,
-        N,           N,
-        N,           LeftCurlyBracketToken,
-        N,           RightCurlyBracketToken,
-        N,           N,  // 70~7F
-        N16,         N16,
-        N16,         N16,
-        N16,         N16,
-        N16,         N16  // 80~FF
-    };
-#undef N
-#undef N16
-    //!@endcond
-
-    if (sizeof(Ch) == 1 || static_cast<unsigned>(c) < 256)
-      return static_cast<Token>(tokenMap[static_cast<unsigned char>(c)]);
-    else
-      return NumberToken;
-  }
-
-  RAPIDJSON_FORCEINLINE IterativeParsingState
-  Predict(IterativeParsingState state, Token token) {
-    // current state x one lookahead token -> new state
-    static const char G[cIterativeParsingStateCount][kTokenCount] = {
-        // Start
-        {
-            IterativeParsingArrayInitialState,   // Left bracket
-            IterativeParsingErrorState,          // Right bracket
-            IterativeParsingObjectInitialState,  // Left curly bracket
-            IterativeParsingErrorState,          // Right curly bracket
-            IterativeParsingErrorState,          // Comma
-            IterativeParsingErrorState,          // Colon
-            IterativeParsingValueState,          // String
-            IterativeParsingValueState,          // False
-            IterativeParsingValueState,          // True
-            IterativeParsingValueState,          // Null
-            IterativeParsingValueState           // Number
-        },
-        // Finish(sink state)
-        {IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState},
-        // Error(sink state)
-        {IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState},
-        // ObjectInitial
-        {
-            IterativeParsingErrorState,         // Left bracket
-            IterativeParsingErrorState,         // Right bracket
-            IterativeParsingErrorState,         // Left curly bracket
-            IterativeParsingObjectFinishState,  // Right curly bracket
-            IterativeParsingErrorState,         // Comma
-            IterativeParsingErrorState,         // Colon
-            IterativeParsingMemberKeyState,     // String
-            IterativeParsingErrorState,         // False
-            IterativeParsingErrorState,         // True
-            IterativeParsingErrorState,         // Null
-            IterativeParsingErrorState          // Number
-        },
-        // MemberKey
-        {
-            IterativeParsingErrorState,              // Left bracket
-            IterativeParsingErrorState,              // Right bracket
-            IterativeParsingErrorState,              // Left curly bracket
-            IterativeParsingErrorState,              // Right curly bracket
-            IterativeParsingErrorState,              // Comma
-            IterativeParsingKeyValueDelimiterState,  // Colon
-            IterativeParsingErrorState,              // String
-            IterativeParsingErrorState,              // False
-            IterativeParsingErrorState,              // True
-            IterativeParsingErrorState,              // Null
-            IterativeParsingErrorState               // Number
-        },
-        // KeyValueDelimiter
-        {
-            IterativeParsingArrayInitialState,  // Left bracket(push MemberValue
-                                                // state)
-            IterativeParsingErrorState,         // Right bracket
-            IterativeParsingObjectInitialState,  // Left curly bracket(push
-                                                 // MemberValue state)
-            IterativeParsingErrorState,          // Right curly bracket
-            IterativeParsingErrorState,          // Comma
-            IterativeParsingErrorState,          // Colon
-            IterativeParsingMemberValueState,    // String
-            IterativeParsingMemberValueState,    // False
-            IterativeParsingMemberValueState,    // True
-            IterativeParsingMemberValueState,    // Null
-            IterativeParsingMemberValueState     // Number
-        },
-        // MemberValue
-        {
-            IterativeParsingErrorState,            // Left bracket
-            IterativeParsingErrorState,            // Right bracket
-            IterativeParsingErrorState,            // Left curly bracket
-            IterativeParsingObjectFinishState,     // Right curly bracket
-            IterativeParsingMemberDelimiterState,  // Comma
-            IterativeParsingErrorState,            // Colon
-            IterativeParsingErrorState,            // String
-            IterativeParsingErrorState,            // False
-            IterativeParsingErrorState,            // True
-            IterativeParsingErrorState,            // Null
-            IterativeParsingErrorState             // Number
-        },
-        // MemberDelimiter
-        {
-            IterativeParsingErrorState,         // Left bracket
-            IterativeParsingErrorState,         // Right bracket
-            IterativeParsingErrorState,         // Left curly bracket
-            IterativeParsingObjectFinishState,  // Right curly bracket
-            IterativeParsingErrorState,         // Comma
-            IterativeParsingErrorState,         // Colon
-            IterativeParsingMemberKeyState,     // String
-            IterativeParsingErrorState,         // False
-            IterativeParsingErrorState,         // True
-            IterativeParsingErrorState,         // Null
-            IterativeParsingErrorState          // Number
-        },
-        // ObjectFinish(sink state)
-        {IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState},
-        // ArrayInitial
-        {
-            IterativeParsingArrayInitialState,   // Left bracket(push Element
-                                                 // state)
-            IterativeParsingArrayFinishState,    // Right bracket
-            IterativeParsingObjectInitialState,  // Left curly bracket(push
-                                                 // Element state)
-            IterativeParsingErrorState,          // Right curly bracket
-            IterativeParsingErrorState,          // Comma
-            IterativeParsingErrorState,          // Colon
-            IterativeParsingElementState,        // String
-            IterativeParsingElementState,        // False
-            IterativeParsingElementState,        // True
-            IterativeParsingElementState,        // Null
-            IterativeParsingElementState         // Number
-        },
-        // Element
-        {
-            IterativeParsingErrorState,             // Left bracket
-            IterativeParsingArrayFinishState,       // Right bracket
-            IterativeParsingErrorState,             // Left curly bracket
-            IterativeParsingErrorState,             // Right curly bracket
-            IterativeParsingElementDelimiterState,  // Comma
-            IterativeParsingErrorState,             // Colon
-            IterativeParsingErrorState,             // String
-            IterativeParsingErrorState,             // False
-            IterativeParsingErrorState,             // True
-            IterativeParsingErrorState,             // Null
-            IterativeParsingErrorState              // Number
-        },
-        // ElementDelimiter
-        {
-            IterativeParsingArrayInitialState,   // Left bracket(push Element
-                                                 // state)
-            IterativeParsingArrayFinishState,    // Right bracket
-            IterativeParsingObjectInitialState,  // Left curly bracket(push
-                                                 // Element state)
-            IterativeParsingErrorState,          // Right curly bracket
-            IterativeParsingErrorState,          // Comma
-            IterativeParsingErrorState,          // Colon
-            IterativeParsingElementState,        // String
-            IterativeParsingElementState,        // False
-            IterativeParsingElementState,        // True
-            IterativeParsingElementState,        // Null
-            IterativeParsingElementState         // Number
-        },
-        // ArrayFinish(sink state)
-        {IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState},
-        // Single Value (sink state)
-        {IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState, IterativeParsingErrorState,
-         IterativeParsingErrorState}};  // End of G
-
-    return static_cast<IterativeParsingState>(G[state][token]);
-  }
-
-  // Make an advance in the token stream and state based on the candidate
-  // destination state which was returned by Transit(). May return a new state
-  // on state pop.
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  RAPIDJSON_FORCEINLINE IterativeParsingState Transit(IterativeParsingState src,
-                                                      Token token,
-                                                      IterativeParsingState dst,
-                                                      InputStream& is,
-                                                      Handler& handler) {
-    (void)token;
-
-    switch (dst) {
-      case IterativeParsingErrorState:
-        return dst;
-
-      case IterativeParsingObjectInitialState:
-      case IterativeParsingArrayInitialState: {
-        // Push the state(Element or MemeberValue) if we are nested in another
-        // array or value of member. In this way we can get the correct state on
-        // ObjectFinish or ArrayFinish by frame pop.
-        IterativeParsingState n = src;
-        if (src == IterativeParsingArrayInitialState ||
-            src == IterativeParsingElementDelimiterState)
-          n = IterativeParsingElementState;
-        else if (src == IterativeParsingKeyValueDelimiterState)
-          n = IterativeParsingMemberValueState;
-        // Push current state.
-        *stack_.template Push<SizeType>(1) = n;
-        // Initialize and push the member/element count.
-        *stack_.template Push<SizeType>(1) = 0;
-        // Call handler
-        bool hr = (dst == IterativeParsingObjectInitialState)
-                      ? handler.StartObject()
-                      : handler.StartArray();
-        // On handler short circuits the parsing.
-        if (!hr) {
-          RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorTermination, is.Tell());
-          return IterativeParsingErrorState;
-        } else {
-          is.Take();
-          return dst;
-        }
-      }
-
-      case IterativeParsingMemberKeyState:
-        ParseString<parseFlags>(is, handler, true);
-        if (HasParseError())
-          return IterativeParsingErrorState;
-        else
-          return dst;
-
-      case IterativeParsingKeyValueDelimiterState:
-        RAPIDJSON_ASSERT(token == ColonToken);
-        is.Take();
-        return dst;
-
-      case IterativeParsingMemberValueState:
-        // Must be non-compound value. Or it would be ObjectInitial or
-        // ArrayInitial state.
-        ParseValue<parseFlags>(is, handler);
-        if (HasParseError()) {
-          return IterativeParsingErrorState;
-        }
-        return dst;
-
-      case IterativeParsingElementState:
-        // Must be non-compound value. Or it would be ObjectInitial or
-        // ArrayInitial state.
-        ParseValue<parseFlags>(is, handler);
-        if (HasParseError()) {
-          return IterativeParsingErrorState;
-        }
-        return dst;
-
-      case IterativeParsingMemberDelimiterState:
-      case IterativeParsingElementDelimiterState:
-        is.Take();
-        // Update member/element count.
-        *stack_.template Top<SizeType>() = *stack_.template Top<SizeType>() + 1;
-        return dst;
-
-      case IterativeParsingObjectFinishState: {
-        // Transit from delimiter is only allowed when trailing commas are
-        // enabled
-        if (!(parseFlags & kParseTrailingCommasFlag) &&
-            src == IterativeParsingMemberDelimiterState) {
-          RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorObjectMissName, is.Tell());
-          return IterativeParsingErrorState;
-        }
-        // Get member count.
-        SizeType c = *stack_.template Pop<SizeType>(1);
-        // If the object is not empty, count the last member.
-        if (src == IterativeParsingMemberValueState)
-          ++c;
-        // Restore the state.
-        IterativeParsingState n = static_cast<IterativeParsingState>(
-            *stack_.template Pop<SizeType>(1));
-        // Transit to Finish state if this is the topmost scope.
-        if (n == IterativeParsingStartState)
-          n = IterativeParsingFinishState;
-        // Call handler
-        bool hr = handler.EndObject(c);
-        // On handler short circuits the parsing.
-        if (!hr) {
-          RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorTermination, is.Tell());
-          return IterativeParsingErrorState;
-        } else {
-          is.Take();
-          return n;
-        }
-      }
-
-      case IterativeParsingArrayFinishState: {
-        // Transit from delimiter is only allowed when trailing commas are
-        // enabled
-        if (!(parseFlags & kParseTrailingCommasFlag) &&
-            src == IterativeParsingElementDelimiterState) {
-          RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorValueInvalid, is.Tell());
-          return IterativeParsingErrorState;
-        }
-        // Get element count.
-        SizeType c = *stack_.template Pop<SizeType>(1);
-        // If the array is not empty, count the last element.
-        if (src == IterativeParsingElementState)
-          ++c;
-        // Restore the state.
-        IterativeParsingState n = static_cast<IterativeParsingState>(
-            *stack_.template Pop<SizeType>(1));
-        // Transit to Finish state if this is the topmost scope.
-        if (n == IterativeParsingStartState)
-          n = IterativeParsingFinishState;
-        // Call handler
-        bool hr = handler.EndArray(c);
-        // On handler short circuits the parsing.
-        if (!hr) {
-          RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorTermination, is.Tell());
-          return IterativeParsingErrorState;
-        } else {
-          is.Take();
-          return n;
-        }
-      }
-
-      default:
-        // This branch is for IterativeParsingValueState actually.
-        // Use `default:` rather than
-        // `case IterativeParsingValueState:` is for code coverage.
-
-        // The IterativeParsingStartState is not enumerated in this switch-case.
-        // It is impossible for that case. And it can be caught by following
-        // assertion.
-
-        // The IterativeParsingFinishState is not enumerated in this switch-case
-        // either. It is a "derivative" state which cannot triggered from
-        // Predict() directly. Therefore it cannot happen here. And it can be
-        // caught by following assertion.
-        RAPIDJSON_ASSERT(dst == IterativeParsingValueState);
-
-        // Must be non-compound value. Or it would be ObjectInitial or
-        // ArrayInitial state.
-        ParseValue<parseFlags>(is, handler);
-        if (HasParseError()) {
-          return IterativeParsingErrorState;
-        }
-        return IterativeParsingFinishState;
-    }
-  }
-
-  template <typename InputStream>
-  void HandleError(IterativeParsingState src, InputStream& is) {
-    if (HasParseError()) {
-      // Error flag has been set.
-      return;
-    }
-
-    switch (src) {
-      case IterativeParsingStartState:
-        RAPIDJSON_PARSE_ERROR(kParseErrorDocumentEmpty, is.Tell());
-        return;
-      case IterativeParsingFinishState:
-        RAPIDJSON_PARSE_ERROR(kParseErrorDocumentRootNotSingular, is.Tell());
-        return;
-      case IterativeParsingObjectInitialState:
-      case IterativeParsingMemberDelimiterState:
-        RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissName, is.Tell());
-        return;
-      case IterativeParsingMemberKeyState:
-        RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissColon, is.Tell());
-        return;
-      case IterativeParsingMemberValueState:
-        RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissCommaOrCurlyBracket,
-                              is.Tell());
-        return;
-      case IterativeParsingKeyValueDelimiterState:
-      case IterativeParsingArrayInitialState:
-      case IterativeParsingElementDelimiterState:
-        RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell());
-        return;
-      default:
-        RAPIDJSON_ASSERT(src == IterativeParsingElementState);
-        RAPIDJSON_PARSE_ERROR(kParseErrorArrayMissCommaOrSquareBracket,
-                              is.Tell());
-        return;
-    }
-  }
-
-  template <unsigned parseFlags, typename InputStream, typename Handler>
-  ParseResult IterativeParse(InputStream& is, Handler& handler) {
-    parseResult_.Clear();
-    ClearStackOnExit scope(*this);
-    IterativeParsingState state = IterativeParsingStartState;
-
-    SkipWhitespaceAndComments<parseFlags>(is);
-    RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-    while (is.Peek() != '\0') {
-      Token t = Tokenize(is.Peek());
-      IterativeParsingState n = Predict(state, t);
-      IterativeParsingState d = Transit<parseFlags>(state, t, n, is, handler);
-
-      if (d == IterativeParsingErrorState) {
-        HandleError(state, is);
-        break;
-      }
-
-      state = d;
-
-      // Do not further consume streams if a root JSON has been parsed.
-      if ((parseFlags & kParseStopWhenDoneFlag) &&
-          state == IterativeParsingFinishState)
-        break;
-
-      SkipWhitespaceAndComments<parseFlags>(is);
-      RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_);
-    }
-
-    // Handle the end of file.
-    if (state != IterativeParsingFinishState)
-      HandleError(state, is);
-
-    return parseResult_;
-  }
-
-  static const size_t kDefaultStackCapacity =
-      256;  //!< Default stack capacity in bytes for storing a single decoded
-            //!< string.
-  internal::Stack<StackAllocator>
-      stack_;  //!< A stack for storing decoded string temporarily during
-               //!< non-destructive parsing.
-  ParseResult parseResult_;
-};  // class GenericReader
-
-//! Reader with UTF8 encoding and default allocator.
-typedef GenericReader<UTF8<>, UTF8<> > Reader;
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_READER_H_
diff --git a/third_party/rapidjson/schema.h b/third_party/rapidjson/schema.h
deleted file mode 100644
index 36e27332..00000000
--- a/third_party/rapidjson/schema.h
+++ /dev/null
@@ -1,2399 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available->
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip-> All
-// rights reserved->
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License-> You may obtain a copy of the License
-// at
-//
-// http://opensource->org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied-> See the
-// License for the specific language governing permissions and limitations under
-// the License->
-
-#ifndef RAPIDJSON_SCHEMA_H_
-#define RAPIDJSON_SCHEMA_H_
-
-#include <cmath>  // abs, floor
-#include "document.h"
-#include "pointer.h"
-
-#if !defined(RAPIDJSON_SCHEMA_USE_INTERNALREGEX)
-#define RAPIDJSON_SCHEMA_USE_INTERNALREGEX 1
-#else
-#define RAPIDJSON_SCHEMA_USE_INTERNALREGEX 0
-#endif
-
-#if !RAPIDJSON_SCHEMA_USE_INTERNALREGEX &&     \
-    !defined(RAPIDJSON_SCHEMA_USE_STDREGEX) && \
-    (__cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1800))
-#define RAPIDJSON_SCHEMA_USE_STDREGEX 1
-#else
-#define RAPIDJSON_SCHEMA_USE_STDREGEX 0
-#endif
-
-#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX
-#include "rapidjson/internal/regex.h"
-#elif RAPIDJSON_SCHEMA_USE_STDREGEX
-#include <regex>
-#endif
-
-#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX || RAPIDJSON_SCHEMA_USE_STDREGEX
-#define RAPIDJSON_SCHEMA_HAS_REGEX 1
-#else
-#define RAPIDJSON_SCHEMA_HAS_REGEX 0
-#endif
-
-#ifndef RAPIDJSON_SCHEMA_VERBOSE
-#define RAPIDJSON_SCHEMA_VERBOSE 0
-#endif
-
-#if RAPIDJSON_SCHEMA_VERBOSE
-#include "stringbuffer.h"
-#endif
-
-RAPIDJSON_DIAG_PUSH
-
-#if defined(__GNUC__)
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_OFF(weak - vtables)
-RAPIDJSON_DIAG_OFF(exit - time - destructors)
-RAPIDJSON_DIAG_OFF(c++ 98 - compat - pedantic)
-RAPIDJSON_DIAG_OFF(variadic - macros)
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_OFF(4512)  // assignment operator could not be generated
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-// Verbose Utilities
-
-#if RAPIDJSON_SCHEMA_VERBOSE
-
-namespace internal {
-
-inline void PrintInvalidKeyword(const char* keyword) {
-  printf("Fail keyword: %s\n", keyword);
-}
-
-inline void PrintInvalidKeyword(const wchar_t* keyword) {
-  wprintf(L"Fail keyword: %ls\n", keyword);
-}
-
-inline void PrintInvalidDocument(const char* document) {
-  printf("Fail document: %s\n\n", document);
-}
-
-inline void PrintInvalidDocument(const wchar_t* document) {
-  wprintf(L"Fail document: %ls\n\n", document);
-}
-
-inline void PrintValidatorPointers(unsigned depth,
-                                   const char* s,
-                                   const char* d) {
-  printf("S: %*s%s\nD: %*s%s\n\n", depth * 4, " ", s, depth * 4, " ", d);
-}
-
-inline void PrintValidatorPointers(unsigned depth,
-                                   const wchar_t* s,
-                                   const wchar_t* d) {
-  wprintf(L"S: %*ls%ls\nD: %*ls%ls\n\n", depth * 4, L" ", s, depth * 4, L" ",
-          d);
-}
-
-}  // namespace internal
-
-#endif  // RAPIDJSON_SCHEMA_VERBOSE
-
-///////////////////////////////////////////////////////////////////////////////
-// RAPIDJSON_INVALID_KEYWORD_RETURN
-
-#if RAPIDJSON_SCHEMA_VERBOSE
-#define RAPIDJSON_INVALID_KEYWORD_VERBOSE(keyword) \
-  internal::PrintInvalidKeyword(keyword)
-#else
-#define RAPIDJSON_INVALID_KEYWORD_VERBOSE(keyword)
-#endif
-
-#define RAPIDJSON_INVALID_KEYWORD_RETURN(keyword)         \
-  RAPIDJSON_MULTILINEMACRO_BEGIN                          \
-  context.invalidKeyword = keyword.GetString();           \
-  RAPIDJSON_INVALID_KEYWORD_VERBOSE(keyword.GetString()); \
-  return false;                                           \
-  RAPIDJSON_MULTILINEMACRO_END
-
-///////////////////////////////////////////////////////////////////////////////
-// Forward declarations
-
-template <typename ValueType, typename Allocator>
-class GenericSchemaDocument;
-
-namespace internal {
-
-template <typename SchemaDocumentType>
-class Schema;
-
-///////////////////////////////////////////////////////////////////////////////
-// ISchemaValidator
-
-class ISchemaValidator {
- public:
-  virtual ~ISchemaValidator() {}
-  virtual bool IsValid() const = 0;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// ISchemaStateFactory
-
-template <typename SchemaType>
-class ISchemaStateFactory {
- public:
-  virtual ~ISchemaStateFactory() {}
-  virtual ISchemaValidator* CreateSchemaValidator(const SchemaType&) = 0;
-  virtual void DestroySchemaValidator(ISchemaValidator* validator) = 0;
-  virtual void* CreateHasher() = 0;
-  virtual uint64_t GetHashCode(void* hasher) = 0;
-  virtual void DestroryHasher(void* hasher) = 0;
-  virtual void* MallocState(size_t size) = 0;
-  virtual void FreeState(void* p) = 0;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// Hasher
-
-// For comparison of compound value
-template <typename Encoding, typename Allocator>
-class Hasher {
- public:
-  typedef typename Encoding::Ch Ch;
-
-  Hasher(Allocator* allocator = 0, size_t stackCapacity = kDefaultSize)
-      : stack_(allocator, stackCapacity) {}
-
-  bool Null() { return WriteType(kNullType); }
-  bool Bool(bool b) { return WriteType(b ? kTrueType : kFalseType); }
-  bool Int(int i) {
-    Number n;
-    n.u.i = i;
-    n.d = static_cast<double>(i);
-    return WriteNumber(n);
-  }
-  bool Uint(unsigned u) {
-    Number n;
-    n.u.u = u;
-    n.d = static_cast<double>(u);
-    return WriteNumber(n);
-  }
-  bool Int64(int64_t i) {
-    Number n;
-    n.u.i = i;
-    n.d = static_cast<double>(i);
-    return WriteNumber(n);
-  }
-  bool Uint64(uint64_t u) {
-    Number n;
-    n.u.u = u;
-    n.d = static_cast<double>(u);
-    return WriteNumber(n);
-  }
-  bool Double(double d) {
-    Number n;
-    if (d < 0)
-      n.u.i = static_cast<int64_t>(d);
-    else
-      n.u.u = static_cast<uint64_t>(d);
-    n.d = d;
-    return WriteNumber(n);
-  }
-
-  bool RawNumber(const Ch* str, SizeType len, bool) {
-    WriteBuffer(kNumberType, str, len * sizeof(Ch));
-    return true;
-  }
-
-  bool String(const Ch* str, SizeType len, bool) {
-    WriteBuffer(kStringType, str, len * sizeof(Ch));
-    return true;
-  }
-
-  bool StartObject() { return true; }
-  bool Key(const Ch* str, SizeType len, bool copy) {
-    return String(str, len, copy);
-  }
-  bool EndObject(SizeType memberCount) {
-    uint64_t h = Hash(0, kObjectType);
-    uint64_t* kv = stack_.template Pop<uint64_t>(memberCount * 2);
-    for (SizeType i = 0; i < memberCount; i++)
-      h ^= Hash(kv[i * 2],
-                kv[i * 2 + 1]);  // Use xor to achieve member order insensitive
-    *stack_.template Push<uint64_t>() = h;
-    return true;
-  }
-
-  bool StartArray() { return true; }
-  bool EndArray(SizeType elementCount) {
-    uint64_t h = Hash(0, kArrayType);
-    uint64_t* e = stack_.template Pop<uint64_t>(elementCount);
-    for (SizeType i = 0; i < elementCount; i++)
-      h = Hash(h, e[i]);  // Use hash to achieve element order sensitive
-    *stack_.template Push<uint64_t>() = h;
-    return true;
-  }
-
-  bool IsValid() const { return stack_.GetSize() == sizeof(uint64_t); }
-
-  uint64_t GetHashCode() const {
-    RAPIDJSON_ASSERT(IsValid());
-    return *stack_.template Top<uint64_t>();
-  }
-
- private:
-  static const size_t kDefaultSize = 256;
-  struct Number {
-    union U {
-      uint64_t u;
-      int64_t i;
-    } u;
-    double d;
-  };
-
-  bool WriteType(Type type) { return WriteBuffer(type, 0, 0); }
-
-  bool WriteNumber(const Number& n) {
-    return WriteBuffer(kNumberType, &n, sizeof(n));
-  }
-
-  bool WriteBuffer(Type type, const void* data, size_t len) {
-    // FNV-1a from http://isthe.com/chongo/tech/comp/fnv/
-    uint64_t h = Hash(RAPIDJSON_UINT64_C2(0x84222325, 0xcbf29ce4), type);
-    const unsigned char* d = static_cast<const unsigned char*>(data);
-    for (size_t i = 0; i < len; i++)
-      h = Hash(h, d[i]);
-    *stack_.template Push<uint64_t>() = h;
-    return true;
-  }
-
-  static uint64_t Hash(uint64_t h, uint64_t d) {
-    static const uint64_t kPrime = RAPIDJSON_UINT64_C2(0x00000100, 0x000001b3);
-    h ^= d;
-    h *= kPrime;
-    return h;
-  }
-
-  Stack<Allocator> stack_;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// SchemaValidationContext
-
-template <typename SchemaDocumentType>
-struct SchemaValidationContext {
-  typedef Schema<SchemaDocumentType> SchemaType;
-  typedef ISchemaStateFactory<SchemaType> SchemaValidatorFactoryType;
-  typedef typename SchemaType::ValueType ValueType;
-  typedef typename ValueType::Ch Ch;
-
-  enum PatternValidatorType {
-    kPatternValidatorOnly,
-    kPatternValidatorWithProperty,
-    kPatternValidatorWithAdditionalProperty
-  };
-
-  SchemaValidationContext(SchemaValidatorFactoryType& f, const SchemaType* s)
-      : factory(f),
-        schema(s),
-        valueSchema(),
-        invalidKeyword(),
-        hasher(),
-        arrayElementHashCodes(),
-        validators(),
-        validatorCount(),
-        patternPropertiesValidators(),
-        patternPropertiesValidatorCount(),
-        patternPropertiesSchemas(),
-        patternPropertiesSchemaCount(),
-        valuePatternValidatorType(kPatternValidatorOnly),
-        propertyExist(),
-        inArray(false),
-        valueUniqueness(false),
-        arrayUniqueness(false) {}
-
-  ~SchemaValidationContext() {
-    if (hasher)
-      factory.DestroryHasher(hasher);
-    if (validators) {
-      for (SizeType i = 0; i < validatorCount; i++)
-        factory.DestroySchemaValidator(validators[i]);
-      factory.FreeState(validators);
-    }
-    if (patternPropertiesValidators) {
-      for (SizeType i = 0; i < patternPropertiesValidatorCount; i++)
-        factory.DestroySchemaValidator(patternPropertiesValidators[i]);
-      factory.FreeState(patternPropertiesValidators);
-    }
-    if (patternPropertiesSchemas)
-      factory.FreeState(patternPropertiesSchemas);
-    if (propertyExist)
-      factory.FreeState(propertyExist);
-  }
-
-  SchemaValidatorFactoryType& factory;
-  const SchemaType* schema;
-  const SchemaType* valueSchema;
-  const Ch* invalidKeyword;
-  void* hasher;                 // Only validator access
-  void* arrayElementHashCodes;  // Only validator access this
-  ISchemaValidator** validators;
-  SizeType validatorCount;
-  ISchemaValidator** patternPropertiesValidators;
-  SizeType patternPropertiesValidatorCount;
-  const SchemaType** patternPropertiesSchemas;
-  SizeType patternPropertiesSchemaCount;
-  PatternValidatorType valuePatternValidatorType;
-  PatternValidatorType objectPatternValidatorType;
-  SizeType arrayElementIndex;
-  bool* propertyExist;
-  bool inArray;
-  bool valueUniqueness;
-  bool arrayUniqueness;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// Schema
-
-template <typename SchemaDocumentType>
-class Schema {
- public:
-  typedef typename SchemaDocumentType::ValueType ValueType;
-  typedef typename SchemaDocumentType::AllocatorType AllocatorType;
-  typedef typename SchemaDocumentType::PointerType PointerType;
-  typedef typename ValueType::EncodingType EncodingType;
-  typedef typename EncodingType::Ch Ch;
-  typedef SchemaValidationContext<SchemaDocumentType> Context;
-  typedef Schema<SchemaDocumentType> SchemaType;
-  typedef GenericValue<EncodingType, AllocatorType> SValue;
-  friend class GenericSchemaDocument<ValueType, AllocatorType>;
-
-  Schema(SchemaDocumentType* schemaDocument,
-         const PointerType& p,
-         const ValueType& value,
-         const ValueType& document,
-         AllocatorType* allocator)
-      : allocator_(allocator),
-        enum_(),
-        enumCount_(),
-        not_(),
-        type_((1 << kTotalSchemaType) - 1),  // typeless
-        validatorCount_(),
-        properties_(),
-        additionalPropertiesSchema_(),
-        patternProperties_(),
-        patternPropertyCount_(),
-        propertyCount_(),
-        minProperties_(),
-        maxProperties_(SizeType(~0)),
-        additionalProperties_(true),
-        hasDependencies_(),
-        hasRequired_(),
-        hasSchemaDependencies_(),
-        additionalItemsSchema_(),
-        itemsList_(),
-        itemsTuple_(),
-        itemsTupleCount_(),
-        minItems_(),
-        maxItems_(SizeType(~0)),
-        additionalItems_(true),
-        uniqueItems_(false),
-        pattern_(),
-        minLength_(0),
-        maxLength_(~SizeType(0)),
-        exclusiveMinimum_(false),
-        exclusiveMaximum_(false) {
-    typedef typename SchemaDocumentType::ValueType ValueType;
-    typedef typename ValueType::ConstValueIterator ConstValueIterator;
-    typedef typename ValueType::ConstMemberIterator ConstMemberIterator;
-
-    if (!value.IsObject())
-      return;
-
-    if (const ValueType* v = GetMember(value, GetTypeString())) {
-      type_ = 0;
-      if (v->IsString())
-        AddType(*v);
-      else if (v->IsArray())
-        for (ConstValueIterator itr = v->Begin(); itr != v->End(); ++itr)
-          AddType(*itr);
-    }
-
-    if (const ValueType* v = GetMember(value, GetEnumString()))
-      if (v->IsArray() && v->Size() > 0) {
-        enum_ = static_cast<uint64_t*>(
-            allocator_->Malloc(sizeof(uint64_t) * v->Size()));
-        for (ConstValueIterator itr = v->Begin(); itr != v->End(); ++itr) {
-          typedef Hasher<EncodingType, MemoryPoolAllocator<> > EnumHasherType;
-          char buffer[256 + 24];
-          MemoryPoolAllocator<> hasherAllocator(buffer, sizeof(buffer));
-          EnumHasherType h(&hasherAllocator, 256);
-          itr->Accept(h);
-          enum_[enumCount_++] = h.GetHashCode();
-        }
-      }
-
-    if (schemaDocument) {
-      AssignIfExist(allOf_, *schemaDocument, p, value, GetAllOfString(),
-                    document);
-      AssignIfExist(anyOf_, *schemaDocument, p, value, GetAnyOfString(),
-                    document);
-      AssignIfExist(oneOf_, *schemaDocument, p, value, GetOneOfString(),
-                    document);
-    }
-
-    if (const ValueType* v = GetMember(value, GetNotString())) {
-      schemaDocument->CreateSchema(&not_, p.Append(GetNotString(), allocator_),
-                                   *v, document);
-      notValidatorIndex_ = validatorCount_;
-      validatorCount_++;
-    }
-
-    // Object
-
-    const ValueType* properties = GetMember(value, GetPropertiesString());
-    const ValueType* required = GetMember(value, GetRequiredString());
-    const ValueType* dependencies = GetMember(value, GetDependenciesString());
-    {
-      // Gather properties from properties/required/dependencies
-      SValue allProperties(kArrayType);
-
-      if (properties && properties->IsObject())
-        for (ConstMemberIterator itr = properties->MemberBegin();
-             itr != properties->MemberEnd(); ++itr)
-          AddUniqueElement(allProperties, itr->name);
-
-      if (required && required->IsArray())
-        for (ConstValueIterator itr = required->Begin(); itr != required->End();
-             ++itr)
-          if (itr->IsString())
-            AddUniqueElement(allProperties, *itr);
-
-      if (dependencies && dependencies->IsObject())
-        for (ConstMemberIterator itr = dependencies->MemberBegin();
-             itr != dependencies->MemberEnd(); ++itr) {
-          AddUniqueElement(allProperties, itr->name);
-          if (itr->value.IsArray())
-            for (ConstValueIterator i = itr->value.Begin();
-                 i != itr->value.End(); ++i)
-              if (i->IsString())
-                AddUniqueElement(allProperties, *i);
-        }
-
-      if (allProperties.Size() > 0) {
-        propertyCount_ = allProperties.Size();
-        properties_ = static_cast<Property*>(
-            allocator_->Malloc(sizeof(Property) * propertyCount_));
-        for (SizeType i = 0; i < propertyCount_; i++) {
-          new (&properties_[i]) Property();
-          properties_[i].name = allProperties[i];
-          properties_[i].schema = GetTypeless();
-        }
-      }
-    }
-
-    if (properties && properties->IsObject()) {
-      PointerType q = p.Append(GetPropertiesString(), allocator_);
-      for (ConstMemberIterator itr = properties->MemberBegin();
-           itr != properties->MemberEnd(); ++itr) {
-        SizeType index;
-        if (FindPropertyIndex(itr->name, &index))
-          schemaDocument->CreateSchema(&properties_[index].schema,
-                                       q.Append(itr->name, allocator_),
-                                       itr->value, document);
-      }
-    }
-
-    if (const ValueType* v = GetMember(value, GetPatternPropertiesString())) {
-      PointerType q = p.Append(GetPatternPropertiesString(), allocator_);
-      patternProperties_ = static_cast<PatternProperty*>(
-          allocator_->Malloc(sizeof(PatternProperty) * v->MemberCount()));
-      patternPropertyCount_ = 0;
-
-      for (ConstMemberIterator itr = v->MemberBegin(); itr != v->MemberEnd();
-           ++itr) {
-        new (&patternProperties_[patternPropertyCount_]) PatternProperty();
-        patternProperties_[patternPropertyCount_].pattern =
-            CreatePattern(itr->name);
-        schemaDocument->CreateSchema(
-            &patternProperties_[patternPropertyCount_].schema,
-            q.Append(itr->name, allocator_), itr->value, document);
-        patternPropertyCount_++;
-      }
-    }
-
-    if (required && required->IsArray())
-      for (ConstValueIterator itr = required->Begin(); itr != required->End();
-           ++itr)
-        if (itr->IsString()) {
-          SizeType index;
-          if (FindPropertyIndex(*itr, &index)) {
-            properties_[index].required = true;
-            hasRequired_ = true;
-          }
-        }
-
-    if (dependencies && dependencies->IsObject()) {
-      PointerType q = p.Append(GetDependenciesString(), allocator_);
-      hasDependencies_ = true;
-      for (ConstMemberIterator itr = dependencies->MemberBegin();
-           itr != dependencies->MemberEnd(); ++itr) {
-        SizeType sourceIndex;
-        if (FindPropertyIndex(itr->name, &sourceIndex)) {
-          if (itr->value.IsArray()) {
-            properties_[sourceIndex].dependencies = static_cast<bool*>(
-                allocator_->Malloc(sizeof(bool) * propertyCount_));
-            std::memset(properties_[sourceIndex].dependencies, 0,
-                        sizeof(bool) * propertyCount_);
-            for (ConstValueIterator targetItr = itr->value.Begin();
-                 targetItr != itr->value.End(); ++targetItr) {
-              SizeType targetIndex;
-              if (FindPropertyIndex(*targetItr, &targetIndex))
-                properties_[sourceIndex].dependencies[targetIndex] = true;
-            }
-          } else if (itr->value.IsObject()) {
-            hasSchemaDependencies_ = true;
-            schemaDocument->CreateSchema(
-                &properties_[sourceIndex].dependenciesSchema,
-                q.Append(itr->name, allocator_), itr->value, document);
-            properties_[sourceIndex].dependenciesValidatorIndex =
-                validatorCount_;
-            validatorCount_++;
-          }
-        }
-      }
-    }
-
-    if (const ValueType* v =
-            GetMember(value, GetAdditionalPropertiesString())) {
-      if (v->IsBool())
-        additionalProperties_ = v->GetBool();
-      else if (v->IsObject())
-        schemaDocument->CreateSchema(
-            &additionalPropertiesSchema_,
-            p.Append(GetAdditionalPropertiesString(), allocator_), *v,
-            document);
-    }
-
-    AssignIfExist(minProperties_, value, GetMinPropertiesString());
-    AssignIfExist(maxProperties_, value, GetMaxPropertiesString());
-
-    // Array
-    if (const ValueType* v = GetMember(value, GetItemsString())) {
-      PointerType q = p.Append(GetItemsString(), allocator_);
-      if (v->IsObject())  // List validation
-        schemaDocument->CreateSchema(&itemsList_, q, *v, document);
-      else if (v->IsArray()) {  // Tuple validation
-        itemsTuple_ = static_cast<const Schema**>(
-            allocator_->Malloc(sizeof(const Schema*) * v->Size()));
-        SizeType index = 0;
-        for (ConstValueIterator itr = v->Begin(); itr != v->End();
-             ++itr, index++)
-          schemaDocument->CreateSchema(&itemsTuple_[itemsTupleCount_++],
-                                       q.Append(index, allocator_), *itr,
-                                       document);
-      }
-    }
-
-    AssignIfExist(minItems_, value, GetMinItemsString());
-    AssignIfExist(maxItems_, value, GetMaxItemsString());
-
-    if (const ValueType* v = GetMember(value, GetAdditionalItemsString())) {
-      if (v->IsBool())
-        additionalItems_ = v->GetBool();
-      else if (v->IsObject())
-        schemaDocument->CreateSchema(
-            &additionalItemsSchema_,
-            p.Append(GetAdditionalItemsString(), allocator_), *v, document);
-    }
-
-    AssignIfExist(uniqueItems_, value, GetUniqueItemsString());
-
-    // String
-    AssignIfExist(minLength_, value, GetMinLengthString());
-    AssignIfExist(maxLength_, value, GetMaxLengthString());
-
-    if (const ValueType* v = GetMember(value, GetPatternString()))
-      pattern_ = CreatePattern(*v);
-
-    // Number
-    if (const ValueType* v = GetMember(value, GetMinimumString()))
-      if (v->IsNumber())
-        minimum_.CopyFrom(*v, *allocator_);
-
-    if (const ValueType* v = GetMember(value, GetMaximumString()))
-      if (v->IsNumber())
-        maximum_.CopyFrom(*v, *allocator_);
-
-    AssignIfExist(exclusiveMinimum_, value, GetExclusiveMinimumString());
-    AssignIfExist(exclusiveMaximum_, value, GetExclusiveMaximumString());
-
-    if (const ValueType* v = GetMember(value, GetMultipleOfString()))
-      if (v->IsNumber() && v->GetDouble() > 0.0)
-        multipleOf_.CopyFrom(*v, *allocator_);
-  }
-
-  ~Schema() {
-    if (allocator_) {
-      allocator_->Free(enum_);
-    }
-    if (properties_) {
-      for (SizeType i = 0; i < propertyCount_; i++)
-        properties_[i].~Property();
-      AllocatorType::Free(properties_);
-    }
-    if (patternProperties_) {
-      for (SizeType i = 0; i < patternPropertyCount_; i++)
-        patternProperties_[i].~PatternProperty();
-      AllocatorType::Free(patternProperties_);
-    }
-    AllocatorType::Free(itemsTuple_);
-#if RAPIDJSON_SCHEMA_HAS_REGEX
-    if (pattern_) {
-      pattern_->~RegexType();
-      allocator_->Free(pattern_);
-    }
-#endif
-  }
-
-  bool BeginValue(Context& context) const {
-    if (context.inArray) {
-      if (uniqueItems_)
-        context.valueUniqueness = true;
-
-      if (itemsList_)
-        context.valueSchema = itemsList_;
-      else if (itemsTuple_) {
-        if (context.arrayElementIndex < itemsTupleCount_)
-          context.valueSchema = itemsTuple_[context.arrayElementIndex];
-        else if (additionalItemsSchema_)
-          context.valueSchema = additionalItemsSchema_;
-        else if (additionalItems_)
-          context.valueSchema = GetTypeless();
-        else
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetItemsString());
-      } else
-        context.valueSchema = GetTypeless();
-
-      context.arrayElementIndex++;
-    }
-    return true;
-  }
-
-  RAPIDJSON_FORCEINLINE bool EndValue(Context& context) const {
-    if (context.patternPropertiesValidatorCount > 0) {
-      bool otherValid = false;
-      SizeType count = context.patternPropertiesValidatorCount;
-      if (context.objectPatternValidatorType != Context::kPatternValidatorOnly)
-        otherValid = context.patternPropertiesValidators[--count]->IsValid();
-
-      bool patternValid = true;
-      for (SizeType i = 0; i < count; i++)
-        if (!context.patternPropertiesValidators[i]->IsValid()) {
-          patternValid = false;
-          break;
-        }
-
-      if (context.objectPatternValidatorType ==
-          Context::kPatternValidatorOnly) {
-        if (!patternValid)
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternPropertiesString());
-      } else if (context.objectPatternValidatorType ==
-                 Context::kPatternValidatorWithProperty) {
-        if (!patternValid || !otherValid)
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternPropertiesString());
-      } else if (!patternValid &&
-                 !otherValid)  // kPatternValidatorWithAdditionalProperty)
-        RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternPropertiesString());
-    }
-
-    if (enum_) {
-      const uint64_t h = context.factory.GetHashCode(context.hasher);
-      for (SizeType i = 0; i < enumCount_; i++)
-        if (enum_[i] == h)
-          goto foundEnum;
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetEnumString());
-    foundEnum:;
-    }
-
-    if (allOf_.schemas)
-      for (SizeType i = allOf_.begin; i < allOf_.begin + allOf_.count; i++)
-        if (!context.validators[i]->IsValid())
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetAllOfString());
-
-    if (anyOf_.schemas) {
-      for (SizeType i = anyOf_.begin; i < anyOf_.begin + anyOf_.count; i++)
-        if (context.validators[i]->IsValid())
-          goto foundAny;
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetAnyOfString());
-    foundAny:;
-    }
-
-    if (oneOf_.schemas) {
-      bool oneValid = false;
-      for (SizeType i = oneOf_.begin; i < oneOf_.begin + oneOf_.count; i++)
-        if (context.validators[i]->IsValid()) {
-          if (oneValid)
-            RAPIDJSON_INVALID_KEYWORD_RETURN(GetOneOfString());
-          else
-            oneValid = true;
-        }
-      if (!oneValid)
-        RAPIDJSON_INVALID_KEYWORD_RETURN(GetOneOfString());
-    }
-
-    if (not_ && context.validators[notValidatorIndex_]->IsValid())
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetNotString());
-
-    return true;
-  }
-
-  bool Null(Context& context) const {
-    if (!(type_ & (1 << kNullSchemaType)))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-    return CreateParallelValidator(context);
-  }
-
-  bool Bool(Context& context, bool) const {
-    if (!(type_ & (1 << kBooleanSchemaType)))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-    return CreateParallelValidator(context);
-  }
-
-  bool Int(Context& context, int i) const {
-    if (!CheckInt(context, i))
-      return false;
-    return CreateParallelValidator(context);
-  }
-
-  bool Uint(Context& context, unsigned u) const {
-    if (!CheckUint(context, u))
-      return false;
-    return CreateParallelValidator(context);
-  }
-
-  bool Int64(Context& context, int64_t i) const {
-    if (!CheckInt(context, i))
-      return false;
-    return CreateParallelValidator(context);
-  }
-
-  bool Uint64(Context& context, uint64_t u) const {
-    if (!CheckUint(context, u))
-      return false;
-    return CreateParallelValidator(context);
-  }
-
-  bool Double(Context& context, double d) const {
-    if (!(type_ & (1 << kNumberSchemaType)))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-
-    if (!minimum_.IsNull() && !CheckDoubleMinimum(context, d))
-      return false;
-
-    if (!maximum_.IsNull() && !CheckDoubleMaximum(context, d))
-      return false;
-
-    if (!multipleOf_.IsNull() && !CheckDoubleMultipleOf(context, d))
-      return false;
-
-    return CreateParallelValidator(context);
-  }
-
-  bool String(Context& context, const Ch* str, SizeType length, bool) const {
-    if (!(type_ & (1 << kStringSchemaType)))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-
-    if (minLength_ != 0 || maxLength_ != SizeType(~0)) {
-      SizeType count;
-      if (internal::CountStringCodePoint<EncodingType>(str, length, &count)) {
-        if (count < minLength_)
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinLengthString());
-        if (count > maxLength_)
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaxLengthString());
-      }
-    }
-
-    if (pattern_ && !IsPatternMatch(pattern_, str, length))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternString());
-
-    return CreateParallelValidator(context);
-  }
-
-  bool StartObject(Context& context) const {
-    if (!(type_ & (1 << kObjectSchemaType)))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-
-    if (hasDependencies_ || hasRequired_) {
-      context.propertyExist = static_cast<bool*>(
-          context.factory.MallocState(sizeof(bool) * propertyCount_));
-      std::memset(context.propertyExist, 0, sizeof(bool) * propertyCount_);
-    }
-
-    if (patternProperties_) {  // pre-allocate schema array
-      SizeType count =
-          patternPropertyCount_ + 1;  // extra for valuePatternValidatorType
-      context.patternPropertiesSchemas = static_cast<const SchemaType**>(
-          context.factory.MallocState(sizeof(const SchemaType*) * count));
-      context.patternPropertiesSchemaCount = 0;
-      std::memset(context.patternPropertiesSchemas, 0,
-                  sizeof(SchemaType*) * count);
-    }
-
-    return CreateParallelValidator(context);
-  }
-
-  bool Key(Context& context, const Ch* str, SizeType len, bool) const {
-    if (patternProperties_) {
-      context.patternPropertiesSchemaCount = 0;
-      for (SizeType i = 0; i < patternPropertyCount_; i++)
-        if (patternProperties_[i].pattern &&
-            IsPatternMatch(patternProperties_[i].pattern, str, len))
-          context.patternPropertiesSchemas
-              [context.patternPropertiesSchemaCount++] =
-              patternProperties_[i].schema;
-    }
-
-    SizeType index;
-    if (FindPropertyIndex(ValueType(str, len).Move(), &index)) {
-      if (context.patternPropertiesSchemaCount > 0) {
-        context
-            .patternPropertiesSchemas[context.patternPropertiesSchemaCount++] =
-            properties_[index].schema;
-        context.valueSchema = GetTypeless();
-        context.valuePatternValidatorType =
-            Context::kPatternValidatorWithProperty;
-      } else
-        context.valueSchema = properties_[index].schema;
-
-      if (context.propertyExist)
-        context.propertyExist[index] = true;
-
-      return true;
-    }
-
-    if (additionalPropertiesSchema_) {
-      if (additionalPropertiesSchema_ &&
-          context.patternPropertiesSchemaCount > 0) {
-        context
-            .patternPropertiesSchemas[context.patternPropertiesSchemaCount++] =
-            additionalPropertiesSchema_;
-        context.valueSchema = GetTypeless();
-        context.valuePatternValidatorType =
-            Context::kPatternValidatorWithAdditionalProperty;
-      } else
-        context.valueSchema = additionalPropertiesSchema_;
-      return true;
-    } else if (additionalProperties_) {
-      context.valueSchema = GetTypeless();
-      return true;
-    }
-
-    if (context.patternPropertiesSchemaCount ==
-        0)  // patternProperties are not additional properties
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetAdditionalPropertiesString());
-
-    return true;
-  }
-
-  bool EndObject(Context& context, SizeType memberCount) const {
-    if (hasRequired_)
-      for (SizeType index = 0; index < propertyCount_; index++)
-        if (properties_[index].required)
-          if (!context.propertyExist[index])
-            RAPIDJSON_INVALID_KEYWORD_RETURN(GetRequiredString());
-
-    if (memberCount < minProperties_)
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinPropertiesString());
-
-    if (memberCount > maxProperties_)
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaxPropertiesString());
-
-    if (hasDependencies_) {
-      for (SizeType sourceIndex = 0; sourceIndex < propertyCount_;
-           sourceIndex++)
-        if (context.propertyExist[sourceIndex]) {
-          if (properties_[sourceIndex].dependencies) {
-            for (SizeType targetIndex = 0; targetIndex < propertyCount_;
-                 targetIndex++)
-              if (properties_[sourceIndex].dependencies[targetIndex] &&
-                  !context.propertyExist[targetIndex])
-                RAPIDJSON_INVALID_KEYWORD_RETURN(GetDependenciesString());
-          } else if (properties_[sourceIndex].dependenciesSchema)
-            if (!context
-                     .validators[properties_[sourceIndex]
-                                     .dependenciesValidatorIndex]
-                     ->IsValid())
-              RAPIDJSON_INVALID_KEYWORD_RETURN(GetDependenciesString());
-        }
-    }
-
-    return true;
-  }
-
-  bool StartArray(Context& context) const {
-    if (!(type_ & (1 << kArraySchemaType)))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-
-    context.arrayElementIndex = 0;
-    context.inArray = true;
-
-    return CreateParallelValidator(context);
-  }
-
-  bool EndArray(Context& context, SizeType elementCount) const {
-    context.inArray = false;
-
-    if (elementCount < minItems_)
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinItemsString());
-
-    if (elementCount > maxItems_)
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaxItemsString());
-
-    return true;
-  }
-
-  // Generate functions for string literal according to Ch
-#define RAPIDJSON_STRING_(name, ...)                         \
-  static const ValueType& Get##name##String() {              \
-    static const Ch s[] = {__VA_ARGS__, '\0'};               \
-    static const ValueType v(s, sizeof(s) / sizeof(Ch) - 1); \
-    return v;                                                \
-  }
-
-  RAPIDJSON_STRING_(Null, 'n', 'u', 'l', 'l')
-  RAPIDJSON_STRING_(Boolean, 'b', 'o', 'o', 'l', 'e', 'a', 'n')
-  RAPIDJSON_STRING_(Object, 'o', 'b', 'j', 'e', 'c', 't')
-  RAPIDJSON_STRING_(Array, 'a', 'r', 'r', 'a', 'y')
-  RAPIDJSON_STRING_(String, 's', 't', 'r', 'i', 'n', 'g')
-  RAPIDJSON_STRING_(Number, 'n', 'u', 'm', 'b', 'e', 'r')
-  RAPIDJSON_STRING_(Integer, 'i', 'n', 't', 'e', 'g', 'e', 'r')
-  RAPIDJSON_STRING_(Type, 't', 'y', 'p', 'e')
-  RAPIDJSON_STRING_(Enum, 'e', 'n', 'u', 'm')
-  RAPIDJSON_STRING_(AllOf, 'a', 'l', 'l', 'O', 'f')
-  RAPIDJSON_STRING_(AnyOf, 'a', 'n', 'y', 'O', 'f')
-  RAPIDJSON_STRING_(OneOf, 'o', 'n', 'e', 'O', 'f')
-  RAPIDJSON_STRING_(Not, 'n', 'o', 't')
-  RAPIDJSON_STRING_(Properties,
-                    'p',
-                    'r',
-                    'o',
-                    'p',
-                    'e',
-                    'r',
-                    't',
-                    'i',
-                    'e',
-                    's')
-  RAPIDJSON_STRING_(Required, 'r', 'e', 'q', 'u', 'i', 'r', 'e', 'd')
-  RAPIDJSON_STRING_(Dependencies,
-                    'd',
-                    'e',
-                    'p',
-                    'e',
-                    'n',
-                    'd',
-                    'e',
-                    'n',
-                    'c',
-                    'i',
-                    'e',
-                    's')
-  RAPIDJSON_STRING_(PatternProperties,
-                    'p',
-                    'a',
-                    't',
-                    't',
-                    'e',
-                    'r',
-                    'n',
-                    'P',
-                    'r',
-                    'o',
-                    'p',
-                    'e',
-                    'r',
-                    't',
-                    'i',
-                    'e',
-                    's')
-  RAPIDJSON_STRING_(AdditionalProperties,
-                    'a',
-                    'd',
-                    'd',
-                    'i',
-                    't',
-                    'i',
-                    'o',
-                    'n',
-                    'a',
-                    'l',
-                    'P',
-                    'r',
-                    'o',
-                    'p',
-                    'e',
-                    'r',
-                    't',
-                    'i',
-                    'e',
-                    's')
-  RAPIDJSON_STRING_(MinProperties,
-                    'm',
-                    'i',
-                    'n',
-                    'P',
-                    'r',
-                    'o',
-                    'p',
-                    'e',
-                    'r',
-                    't',
-                    'i',
-                    'e',
-                    's')
-  RAPIDJSON_STRING_(MaxProperties,
-                    'm',
-                    'a',
-                    'x',
-                    'P',
-                    'r',
-                    'o',
-                    'p',
-                    'e',
-                    'r',
-                    't',
-                    'i',
-                    'e',
-                    's')
-  RAPIDJSON_STRING_(Items, 'i', 't', 'e', 'm', 's')
-  RAPIDJSON_STRING_(MinItems, 'm', 'i', 'n', 'I', 't', 'e', 'm', 's')
-  RAPIDJSON_STRING_(MaxItems, 'm', 'a', 'x', 'I', 't', 'e', 'm', 's')
-  RAPIDJSON_STRING_(AdditionalItems,
-                    'a',
-                    'd',
-                    'd',
-                    'i',
-                    't',
-                    'i',
-                    'o',
-                    'n',
-                    'a',
-                    'l',
-                    'I',
-                    't',
-                    'e',
-                    'm',
-                    's')
-  RAPIDJSON_STRING_(UniqueItems,
-                    'u',
-                    'n',
-                    'i',
-                    'q',
-                    'u',
-                    'e',
-                    'I',
-                    't',
-                    'e',
-                    'm',
-                    's')
-  RAPIDJSON_STRING_(MinLength, 'm', 'i', 'n', 'L', 'e', 'n', 'g', 't', 'h')
-  RAPIDJSON_STRING_(MaxLength, 'm', 'a', 'x', 'L', 'e', 'n', 'g', 't', 'h')
-  RAPIDJSON_STRING_(Pattern, 'p', 'a', 't', 't', 'e', 'r', 'n')
-  RAPIDJSON_STRING_(Minimum, 'm', 'i', 'n', 'i', 'm', 'u', 'm')
-  RAPIDJSON_STRING_(Maximum, 'm', 'a', 'x', 'i', 'm', 'u', 'm')
-  RAPIDJSON_STRING_(ExclusiveMinimum,
-                    'e',
-                    'x',
-                    'c',
-                    'l',
-                    'u',
-                    's',
-                    'i',
-                    'v',
-                    'e',
-                    'M',
-                    'i',
-                    'n',
-                    'i',
-                    'm',
-                    'u',
-                    'm')
-  RAPIDJSON_STRING_(ExclusiveMaximum,
-                    'e',
-                    'x',
-                    'c',
-                    'l',
-                    'u',
-                    's',
-                    'i',
-                    'v',
-                    'e',
-                    'M',
-                    'a',
-                    'x',
-                    'i',
-                    'm',
-                    'u',
-                    'm')
-  RAPIDJSON_STRING_(MultipleOf,
-                    'm',
-                    'u',
-                    'l',
-                    't',
-                    'i',
-                    'p',
-                    'l',
-                    'e',
-                    'O',
-                    'f')
-
-#undef RAPIDJSON_STRING_
-
- private:
-  enum SchemaValueType {
-    kNullSchemaType,
-    kBooleanSchemaType,
-    kObjectSchemaType,
-    kArraySchemaType,
-    kStringSchemaType,
-    kNumberSchemaType,
-    kIntegerSchemaType,
-    kTotalSchemaType
-  };
-
-#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX
-  typedef internal::GenericRegex<EncodingType> RegexType;
-#elif RAPIDJSON_SCHEMA_USE_STDREGEX
-  typedef std::basic_regex<Ch> RegexType;
-#else
-  typedef char RegexType;
-#endif
-
-  struct SchemaArray {
-    SchemaArray() : schemas(), count() {}
-    ~SchemaArray() { AllocatorType::Free(schemas); }
-    const SchemaType** schemas;
-    SizeType begin;  // begin index of context.validators
-    SizeType count;
-  };
-
-  static const SchemaType* GetTypeless() {
-    static SchemaType typeless(0, PointerType(), ValueType(kObjectType).Move(),
-                               ValueType(kObjectType).Move(), 0);
-    return &typeless;
-  }
-
-  template <typename V1, typename V2>
-  void AddUniqueElement(V1& a, const V2& v) {
-    for (typename V1::ConstValueIterator itr = a.Begin(); itr != a.End(); ++itr)
-      if (*itr == v)
-        return;
-    V1 c(v, *allocator_);
-    a.PushBack(c, *allocator_);
-  }
-
-  static const ValueType* GetMember(const ValueType& value,
-                                    const ValueType& name) {
-    typename ValueType::ConstMemberIterator itr = value.FindMember(name);
-    return itr != value.MemberEnd() ? &(itr->value) : 0;
-  }
-
-  static void AssignIfExist(bool& out,
-                            const ValueType& value,
-                            const ValueType& name) {
-    if (const ValueType* v = GetMember(value, name))
-      if (v->IsBool())
-        out = v->GetBool();
-  }
-
-  static void AssignIfExist(SizeType& out,
-                            const ValueType& value,
-                            const ValueType& name) {
-    if (const ValueType* v = GetMember(value, name))
-      if (v->IsUint64() && v->GetUint64() <= SizeType(~0))
-        out = static_cast<SizeType>(v->GetUint64());
-  }
-
-  void AssignIfExist(SchemaArray& out,
-                     SchemaDocumentType& schemaDocument,
-                     const PointerType& p,
-                     const ValueType& value,
-                     const ValueType& name,
-                     const ValueType& document) {
-    if (const ValueType* v = GetMember(value, name)) {
-      if (v->IsArray() && v->Size() > 0) {
-        PointerType q = p.Append(name, allocator_);
-        out.count = v->Size();
-        out.schemas = static_cast<const Schema**>(
-            allocator_->Malloc(out.count * sizeof(const Schema*)));
-        memset(out.schemas, 0, sizeof(Schema*) * out.count);
-        for (SizeType i = 0; i < out.count; i++)
-          schemaDocument.CreateSchema(&out.schemas[i], q.Append(i, allocator_),
-                                      (*v)[i], document);
-        out.begin = validatorCount_;
-        validatorCount_ += out.count;
-      }
-    }
-  }
-
-#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX
-  template <typename ValueType>
-  RegexType* CreatePattern(const ValueType& value) {
-    if (value.IsString()) {
-      RegexType* r = new (allocator_->Malloc(sizeof(RegexType)))
-          RegexType(value.GetString());
-      if (!r->IsValid()) {
-        r->~RegexType();
-        AllocatorType::Free(r);
-        r = 0;
-      }
-      return r;
-    }
-    return 0;
-  }
-
-  static bool IsPatternMatch(const RegexType* pattern,
-                             const Ch* str,
-                             SizeType) {
-    return pattern->Search(str);
-  }
-#elif RAPIDJSON_SCHEMA_USE_STDREGEX
-  template <typename ValueType>
-  RegexType* CreatePattern(const ValueType& value) {
-    if (value.IsString())
-      try {
-        return new (allocator_->Malloc(sizeof(RegexType)))
-            RegexType(value.GetString(), std::size_t(value.GetStringLength()),
-                      std::regex_constants::ECMAScript);
-      } catch (const std::regex_error&) {
-      }
-    return 0;
-  }
-
-  static bool IsPatternMatch(const RegexType* pattern,
-                             const Ch* str,
-                             SizeType length) {
-    std::match_results<const Ch*> r;
-    return std::regex_search(str, str + length, r, *pattern);
-  }
-#else
-  template <typename ValueType>
-  RegexType* CreatePattern(const ValueType&) {
-    return 0;
-  }
-
-  static bool IsPatternMatch(const RegexType*, const Ch*, SizeType) {
-    return true;
-  }
-#endif  // RAPIDJSON_SCHEMA_USE_STDREGEX
-
-  void AddType(const ValueType& type) {
-    if (type == GetNullString())
-      type_ |= 1 << kNullSchemaType;
-    else if (type == GetBooleanString())
-      type_ |= 1 << kBooleanSchemaType;
-    else if (type == GetObjectString())
-      type_ |= 1 << kObjectSchemaType;
-    else if (type == GetArrayString())
-      type_ |= 1 << kArraySchemaType;
-    else if (type == GetStringString())
-      type_ |= 1 << kStringSchemaType;
-    else if (type == GetIntegerString())
-      type_ |= 1 << kIntegerSchemaType;
-    else if (type == GetNumberString())
-      type_ |= (1 << kNumberSchemaType) | (1 << kIntegerSchemaType);
-  }
-
-  bool CreateParallelValidator(Context& context) const {
-    if (enum_ || context.arrayUniqueness)
-      context.hasher = context.factory.CreateHasher();
-
-    if (validatorCount_) {
-      RAPIDJSON_ASSERT(context.validators == 0);
-      context.validators =
-          static_cast<ISchemaValidator**>(context.factory.MallocState(
-              sizeof(ISchemaValidator*) * validatorCount_));
-      context.validatorCount = validatorCount_;
-
-      if (allOf_.schemas)
-        CreateSchemaValidators(context, allOf_);
-
-      if (anyOf_.schemas)
-        CreateSchemaValidators(context, anyOf_);
-
-      if (oneOf_.schemas)
-        CreateSchemaValidators(context, oneOf_);
-
-      if (not_)
-        context.validators[notValidatorIndex_] =
-            context.factory.CreateSchemaValidator(*not_);
-
-      if (hasSchemaDependencies_) {
-        for (SizeType i = 0; i < propertyCount_; i++)
-          if (properties_[i].dependenciesSchema)
-            context.validators[properties_[i].dependenciesValidatorIndex] =
-                context.factory.CreateSchemaValidator(
-                    *properties_[i].dependenciesSchema);
-      }
-    }
-
-    return true;
-  }
-
-  void CreateSchemaValidators(Context& context,
-                              const SchemaArray& schemas) const {
-    for (SizeType i = 0; i < schemas.count; i++)
-      context.validators[schemas.begin + i] =
-          context.factory.CreateSchemaValidator(*schemas.schemas[i]);
-  }
-
-  // O(n)
-  bool FindPropertyIndex(const ValueType& name, SizeType* outIndex) const {
-    SizeType len = name.GetStringLength();
-    const Ch* str = name.GetString();
-    for (SizeType index = 0; index < propertyCount_; index++)
-      if (properties_[index].name.GetStringLength() == len &&
-          (std::memcmp(properties_[index].name.GetString(), str,
-                       sizeof(Ch) * len) == 0)) {
-        *outIndex = index;
-        return true;
-      }
-    return false;
-  }
-
-  bool CheckInt(Context& context, int64_t i) const {
-    if (!(type_ & ((1 << kIntegerSchemaType) | (1 << kNumberSchemaType))))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-
-    if (!minimum_.IsNull()) {
-      if (minimum_.IsInt64()) {
-        if (exclusiveMinimum_ ? i <= minimum_.GetInt64()
-                              : i < minimum_.GetInt64())
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString());
-      } else if (minimum_.IsUint64()) {
-        RAPIDJSON_INVALID_KEYWORD_RETURN(
-            GetMinimumString());  // i <= max(int64_t) < minimum.GetUint64()
-      } else if (!CheckDoubleMinimum(context, static_cast<double>(i)))
-        return false;
-    }
-
-    if (!maximum_.IsNull()) {
-      if (maximum_.IsInt64()) {
-        if (exclusiveMaximum_ ? i >= maximum_.GetInt64()
-                              : i > maximum_.GetInt64())
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString());
-      } else if (maximum_.IsUint64())
-        /* do nothing */;  // i <= max(int64_t) < maximum_.GetUint64()
-      else if (!CheckDoubleMaximum(context, static_cast<double>(i)))
-        return false;
-    }
-
-    if (!multipleOf_.IsNull()) {
-      if (multipleOf_.IsUint64()) {
-        if (static_cast<uint64_t>(i >= 0 ? i : -i) % multipleOf_.GetUint64() !=
-            0)
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMultipleOfString());
-      } else if (!CheckDoubleMultipleOf(context, static_cast<double>(i)))
-        return false;
-    }
-
-    return true;
-  }
-
-  bool CheckUint(Context& context, uint64_t i) const {
-    if (!(type_ & ((1 << kIntegerSchemaType) | (1 << kNumberSchemaType))))
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString());
-
-    if (!minimum_.IsNull()) {
-      if (minimum_.IsUint64()) {
-        if (exclusiveMinimum_ ? i <= minimum_.GetUint64()
-                              : i < minimum_.GetUint64())
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString());
-      } else if (minimum_.IsInt64())
-        /* do nothing */;  // i >= 0 > minimum.Getint64()
-      else if (!CheckDoubleMinimum(context, static_cast<double>(i)))
-        return false;
-    }
-
-    if (!maximum_.IsNull()) {
-      if (maximum_.IsUint64()) {
-        if (exclusiveMaximum_ ? i >= maximum_.GetUint64()
-                              : i > maximum_.GetUint64())
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString());
-      } else if (maximum_.IsInt64())
-        RAPIDJSON_INVALID_KEYWORD_RETURN(
-            GetMaximumString());  // i >= 0 > maximum_
-      else if (!CheckDoubleMaximum(context, static_cast<double>(i)))
-        return false;
-    }
-
-    if (!multipleOf_.IsNull()) {
-      if (multipleOf_.IsUint64()) {
-        if (i % multipleOf_.GetUint64() != 0)
-          RAPIDJSON_INVALID_KEYWORD_RETURN(GetMultipleOfString());
-      } else if (!CheckDoubleMultipleOf(context, static_cast<double>(i)))
-        return false;
-    }
-
-    return true;
-  }
-
-  bool CheckDoubleMinimum(Context& context, double d) const {
-    if (exclusiveMinimum_ ? d <= minimum_.GetDouble()
-                          : d < minimum_.GetDouble())
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString());
-    return true;
-  }
-
-  bool CheckDoubleMaximum(Context& context, double d) const {
-    if (exclusiveMaximum_ ? d >= maximum_.GetDouble()
-                          : d > maximum_.GetDouble())
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString());
-    return true;
-  }
-
-  bool CheckDoubleMultipleOf(Context& context, double d) const {
-    double a = std::abs(d), b = std::abs(multipleOf_.GetDouble());
-    double q = std::floor(a / b);
-    double r = a - q * b;
-    if (r > 0.0)
-      RAPIDJSON_INVALID_KEYWORD_RETURN(GetMultipleOfString());
-    return true;
-  }
-
-  struct Property {
-    Property()
-        : schema(),
-          dependenciesSchema(),
-          dependenciesValidatorIndex(),
-          dependencies(),
-          required(false) {}
-    ~Property() { AllocatorType::Free(dependencies); }
-    SValue name;
-    const SchemaType* schema;
-    const SchemaType* dependenciesSchema;
-    SizeType dependenciesValidatorIndex;
-    bool* dependencies;
-    bool required;
-  };
-
-  struct PatternProperty {
-    PatternProperty() : schema(), pattern() {}
-    ~PatternProperty() {
-      if (pattern) {
-        pattern->~RegexType();
-        AllocatorType::Free(pattern);
-      }
-    }
-    const SchemaType* schema;
-    RegexType* pattern;
-  };
-
-  AllocatorType* allocator_;
-  uint64_t* enum_;
-  SizeType enumCount_;
-  SchemaArray allOf_;
-  SchemaArray anyOf_;
-  SchemaArray oneOf_;
-  const SchemaType* not_;
-  unsigned type_;  // bitmask of kSchemaType
-  SizeType validatorCount_;
-  SizeType notValidatorIndex_;
-
-  Property* properties_;
-  const SchemaType* additionalPropertiesSchema_;
-  PatternProperty* patternProperties_;
-  SizeType patternPropertyCount_;
-  SizeType propertyCount_;
-  SizeType minProperties_;
-  SizeType maxProperties_;
-  bool additionalProperties_;
-  bool hasDependencies_;
-  bool hasRequired_;
-  bool hasSchemaDependencies_;
-
-  const SchemaType* additionalItemsSchema_;
-  const SchemaType* itemsList_;
-  const SchemaType** itemsTuple_;
-  SizeType itemsTupleCount_;
-  SizeType minItems_;
-  SizeType maxItems_;
-  bool additionalItems_;
-  bool uniqueItems_;
-
-  RegexType* pattern_;
-  SizeType minLength_;
-  SizeType maxLength_;
-
-  SValue minimum_;
-  SValue maximum_;
-  SValue multipleOf_;
-  bool exclusiveMinimum_;
-  bool exclusiveMaximum_;
-};
-
-template <typename Stack, typename Ch>
-struct TokenHelper {
-  RAPIDJSON_FORCEINLINE static void AppendIndexToken(Stack& documentStack,
-                                                     SizeType index) {
-    *documentStack.template Push<Ch>() = '/';
-    char buffer[21];
-    size_t length =
-        static_cast<size_t>((sizeof(SizeType) == 4 ? u32toa(index, buffer)
-                                                   : u64toa(index, buffer)) -
-                            buffer);
-    for (size_t i = 0; i < length; i++)
-      *documentStack.template Push<Ch>() = buffer[i];
-  }
-};
-
-// Partial specialized version for char to prevent buffer copying.
-template <typename Stack>
-struct TokenHelper<Stack, char> {
-  RAPIDJSON_FORCEINLINE static void AppendIndexToken(Stack& documentStack,
-                                                     SizeType index) {
-    if (sizeof(SizeType) == 4) {
-      char* buffer = documentStack.template Push<char>(1 + 10);  // '/' + uint
-      *buffer++ = '/';
-      const char* end = internal::u32toa(index, buffer);
-      documentStack.template Pop<char>(
-          static_cast<size_t>(10 - (end - buffer)));
-    } else {
-      char* buffer = documentStack.template Push<char>(1 + 20);  // '/' + uint64
-      *buffer++ = '/';
-      const char* end = internal::u64toa(index, buffer);
-      documentStack.template Pop<char>(
-          static_cast<size_t>(20 - (end - buffer)));
-    }
-  }
-};
-
-}  // namespace internal
-
-///////////////////////////////////////////////////////////////////////////////
-// IGenericRemoteSchemaDocumentProvider
-
-template <typename SchemaDocumentType>
-class IGenericRemoteSchemaDocumentProvider {
- public:
-  typedef typename SchemaDocumentType::Ch Ch;
-
-  virtual ~IGenericRemoteSchemaDocumentProvider() {}
-  virtual const SchemaDocumentType* GetRemoteDocument(const Ch* uri,
-                                                      SizeType length) = 0;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericSchemaDocument
-
-//! JSON schema document.
-/*!
-    A JSON schema document is a compiled version of a JSON schema.
-    It is basically a tree of internal::Schema.
-
-    \note This is an immutable class (i.e. its instance cannot be modified after
-   construction). \tparam ValueT Type of JSON value (e.g. \c Value ), which also
-   determine the encoding. \tparam Allocator Allocator type for allocating
-   memory of this document.
-*/
-template <typename ValueT, typename Allocator = CrtAllocator>
-class GenericSchemaDocument {
- public:
-  typedef ValueT ValueType;
-  typedef IGenericRemoteSchemaDocumentProvider<GenericSchemaDocument>
-      IRemoteSchemaDocumentProviderType;
-  typedef Allocator AllocatorType;
-  typedef typename ValueType::EncodingType EncodingType;
-  typedef typename EncodingType::Ch Ch;
-  typedef internal::Schema<GenericSchemaDocument> SchemaType;
-  typedef GenericPointer<ValueType, Allocator> PointerType;
-  friend class internal::Schema<GenericSchemaDocument>;
-  template <typename, typename, typename>
-  friend class GenericSchemaValidator;
-
-  //! Constructor.
-  /*!
-      Compile a JSON document into schema document.
-
-      \param document A JSON document as source.
-      \param remoteProvider An optional remote schema document provider for
-     resolving remote reference. Can be null. \param allocator An optional
-     allocator instance for allocating memory. Can be null.
-  */
-  explicit GenericSchemaDocument(
-      const ValueType& document,
-      IRemoteSchemaDocumentProviderType* remoteProvider = 0,
-      Allocator* allocator = 0)
-      : remoteProvider_(remoteProvider),
-        allocator_(allocator),
-        ownAllocator_(),
-        root_(),
-        schemaMap_(allocator, kInitialSchemaMapSize),
-        schemaRef_(allocator, kInitialSchemaRefSize) {
-    if (!allocator_)
-      ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
-
-    // Generate root schema, it will call CreateSchema() to create sub-schemas,
-    // And call AddRefSchema() if there are $ref.
-    CreateSchemaRecursive(&root_, PointerType(), document, document);
-
-    // Resolve $ref
-    while (!schemaRef_.Empty()) {
-      SchemaRefEntry* refEntry = schemaRef_.template Pop<SchemaRefEntry>(1);
-      if (const SchemaType* s = GetSchema(refEntry->target)) {
-        if (refEntry->schema)
-          *refEntry->schema = s;
-
-        // Create entry in map if not exist
-        if (!GetSchema(refEntry->source)) {
-          new (schemaMap_.template Push<SchemaEntry>()) SchemaEntry(
-              refEntry->source, const_cast<SchemaType*>(s), false, allocator_);
-        }
-      }
-      refEntry->~SchemaRefEntry();
-    }
-
-    RAPIDJSON_ASSERT(root_ != 0);
-
-    schemaRef_.ShrinkToFit();  // Deallocate all memory for ref
-  }
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  //! Move constructor in C++11
-  GenericSchemaDocument(GenericSchemaDocument&& rhs) RAPIDJSON_NOEXCEPT
-      : remoteProvider_(rhs.remoteProvider_),
-        allocator_(rhs.allocator_),
-        ownAllocator_(rhs.ownAllocator_),
-        root_(rhs.root_),
-        schemaMap_(std::move(rhs.schemaMap_)),
-        schemaRef_(std::move(rhs.schemaRef_)) {
-    rhs.remoteProvider_ = 0;
-    rhs.allocator_ = 0;
-    rhs.ownAllocator_ = 0;
-  }
-#endif
-
-  //! Destructor
-  ~GenericSchemaDocument() {
-    while (!schemaMap_.Empty())
-      schemaMap_.template Pop<SchemaEntry>(1)->~SchemaEntry();
-
-    RAPIDJSON_DELETE(ownAllocator_);
-  }
-
-  //! Get the root schema.
-  const SchemaType& GetRoot() const { return *root_; }
-
- private:
-  //! Prohibit copying
-  GenericSchemaDocument(const GenericSchemaDocument&);
-  //! Prohibit assignment
-  GenericSchemaDocument& operator=(const GenericSchemaDocument&);
-
-  struct SchemaRefEntry {
-    SchemaRefEntry(const PointerType& s,
-                   const PointerType& t,
-                   const SchemaType** outSchema,
-                   Allocator* allocator)
-        : source(s, allocator), target(t, allocator), schema(outSchema) {}
-    PointerType source;
-    PointerType target;
-    const SchemaType** schema;
-  };
-
-  struct SchemaEntry {
-    SchemaEntry(const PointerType& p,
-                SchemaType* s,
-                bool o,
-                Allocator* allocator)
-        : pointer(p, allocator), schema(s), owned(o) {}
-    ~SchemaEntry() {
-      if (owned) {
-        schema->~SchemaType();
-        Allocator::Free(schema);
-      }
-    }
-    PointerType pointer;
-    SchemaType* schema;
-    bool owned;
-  };
-
-  void CreateSchemaRecursive(const SchemaType** schema,
-                             const PointerType& pointer,
-                             const ValueType& v,
-                             const ValueType& document) {
-    if (schema)
-      *schema = SchemaType::GetTypeless();
-
-    if (v.GetType() == kObjectType) {
-      const SchemaType* s = GetSchema(pointer);
-      if (!s)
-        CreateSchema(schema, pointer, v, document);
-
-      for (typename ValueType::ConstMemberIterator itr = v.MemberBegin();
-           itr != v.MemberEnd(); ++itr)
-        CreateSchemaRecursive(0, pointer.Append(itr->name, allocator_),
-                              itr->value, document);
-    } else if (v.GetType() == kArrayType)
-      for (SizeType i = 0; i < v.Size(); i++)
-        CreateSchemaRecursive(0, pointer.Append(i, allocator_), v[i], document);
-  }
-
-  void CreateSchema(const SchemaType** schema,
-                    const PointerType& pointer,
-                    const ValueType& v,
-                    const ValueType& document) {
-    RAPIDJSON_ASSERT(pointer.IsValid());
-    if (v.IsObject()) {
-      if (!HandleRefSchema(pointer, schema, v, document)) {
-        SchemaType* s = new (allocator_->Malloc(sizeof(SchemaType)))
-            SchemaType(this, pointer, v, document, allocator_);
-        new (schemaMap_.template Push<SchemaEntry>())
-            SchemaEntry(pointer, s, true, allocator_);
-        if (schema)
-          *schema = s;
-      }
-    }
-  }
-
-  bool HandleRefSchema(const PointerType& source,
-                       const SchemaType** schema,
-                       const ValueType& v,
-                       const ValueType& document) {
-    static const Ch kRefString[] = {'$', 'r', 'e', 'f', '\0'};
-    static const ValueType kRefValue(kRefString, 4);
-
-    typename ValueType::ConstMemberIterator itr = v.FindMember(kRefValue);
-    if (itr == v.MemberEnd())
-      return false;
-
-    if (itr->value.IsString()) {
-      SizeType len = itr->value.GetStringLength();
-      if (len > 0) {
-        const Ch* s = itr->value.GetString();
-        SizeType i = 0;
-        while (i < len && s[i] != '#')  // Find the first #
-          i++;
-
-        if (i > 0) {  // Remote reference, resolve immediately
-          if (remoteProvider_) {
-            if (const GenericSchemaDocument* remoteDocument =
-                    remoteProvider_->GetRemoteDocument(s, i - 1)) {
-              PointerType pointer(&s[i], len - i, allocator_);
-              if (pointer.IsValid()) {
-                if (const SchemaType* sc = remoteDocument->GetSchema(pointer)) {
-                  if (schema)
-                    *schema = sc;
-                  return true;
-                }
-              }
-            }
-          }
-        } else if (s[i] == '#') {  // Local reference, defer resolution
-          PointerType pointer(&s[i], len - i, allocator_);
-          if (pointer.IsValid()) {
-            if (const ValueType* nv = pointer.Get(document))
-              if (HandleRefSchema(source, schema, *nv, document))
-                return true;
-
-            new (schemaRef_.template Push<SchemaRefEntry>())
-                SchemaRefEntry(source, pointer, schema, allocator_);
-            return true;
-          }
-        }
-      }
-    }
-    return false;
-  }
-
-  const SchemaType* GetSchema(const PointerType& pointer) const {
-    for (const SchemaEntry* target = schemaMap_.template Bottom<SchemaEntry>();
-         target != schemaMap_.template End<SchemaEntry>(); ++target)
-      if (pointer == target->pointer)
-        return target->schema;
-    return 0;
-  }
-
-  PointerType GetPointer(const SchemaType* schema) const {
-    for (const SchemaEntry* target = schemaMap_.template Bottom<SchemaEntry>();
-         target != schemaMap_.template End<SchemaEntry>(); ++target)
-      if (schema == target->schema)
-        return target->pointer;
-    return PointerType();
-  }
-
-  static const size_t kInitialSchemaMapSize = 64;
-  static const size_t kInitialSchemaRefSize = 64;
-
-  IRemoteSchemaDocumentProviderType* remoteProvider_;
-  Allocator* allocator_;
-  Allocator* ownAllocator_;
-  const SchemaType* root_;                //!< Root schema.
-  internal::Stack<Allocator> schemaMap_;  // Stores created Pointer -> Schemas
-  internal::Stack<Allocator>
-      schemaRef_;  // Stores Pointer from $ref and schema which holds the $ref
-};
-
-//! GenericSchemaDocument using Value type.
-typedef GenericSchemaDocument<Value> SchemaDocument;
-//! IGenericRemoteSchemaDocumentProvider using SchemaDocument.
-typedef IGenericRemoteSchemaDocumentProvider<SchemaDocument>
-    IRemoteSchemaDocumentProvider;
-
-///////////////////////////////////////////////////////////////////////////////
-// GenericSchemaValidator
-
-//! JSON Schema Validator.
-/*!
-    A SAX style JSON schema validator.
-    It uses a \c GenericSchemaDocument to validate SAX events.
-    It delegates the incoming SAX events to an output handler.
-    The default output handler does nothing.
-    It can be reused multiple times by calling \c Reset().
-
-    \tparam SchemaDocumentType Type of schema document.
-    \tparam OutputHandler Type of output handler. Default handler does nothing.
-    \tparam StateAllocator Allocator for storing the internal validation states.
-*/
-template <typename SchemaDocumentType,
-          typename OutputHandler = BaseReaderHandler<
-              typename SchemaDocumentType::SchemaType::EncodingType>,
-          typename StateAllocator = CrtAllocator>
-class GenericSchemaValidator : public internal::ISchemaStateFactory<
-                                   typename SchemaDocumentType::SchemaType>,
-                               public internal::ISchemaValidator {
- public:
-  typedef typename SchemaDocumentType::SchemaType SchemaType;
-  typedef typename SchemaDocumentType::PointerType PointerType;
-  typedef typename SchemaType::EncodingType EncodingType;
-  typedef typename EncodingType::Ch Ch;
-
-  //! Constructor without output handler.
-  /*!
-      \param schemaDocument The schema document to conform to.
-      \param allocator Optional allocator for storing internal validation
-     states. \param schemaStackCapacity Optional initial capacity of schema path
-     stack. \param documentStackCapacity Optional initial capacity of document
-     path stack.
-  */
-  GenericSchemaValidator(
-      const SchemaDocumentType& schemaDocument,
-      StateAllocator* allocator = 0,
-      size_t schemaStackCapacity = kDefaultSchemaStackCapacity,
-      size_t documentStackCapacity = kDefaultDocumentStackCapacity)
-      : schemaDocument_(&schemaDocument),
-        root_(schemaDocument.GetRoot()),
-        outputHandler_(GetNullHandler()),
-        stateAllocator_(allocator),
-        ownStateAllocator_(0),
-        schemaStack_(allocator, schemaStackCapacity),
-        documentStack_(allocator, documentStackCapacity),
-        valid_(true)
-#if RAPIDJSON_SCHEMA_VERBOSE
-        ,
-        depth_(0)
-#endif
-  {
-  }
-
-  //! Constructor with output handler.
-  /*!
-      \param schemaDocument The schema document to conform to.
-      \param allocator Optional allocator for storing internal validation
-     states. \param schemaStackCapacity Optional initial capacity of schema path
-     stack. \param documentStackCapacity Optional initial capacity of document
-     path stack.
-  */
-  GenericSchemaValidator(
-      const SchemaDocumentType& schemaDocument,
-      OutputHandler& outputHandler,
-      StateAllocator* allocator = 0,
-      size_t schemaStackCapacity = kDefaultSchemaStackCapacity,
-      size_t documentStackCapacity = kDefaultDocumentStackCapacity)
-      : schemaDocument_(&schemaDocument),
-        root_(schemaDocument.GetRoot()),
-        outputHandler_(outputHandler),
-        stateAllocator_(allocator),
-        ownStateAllocator_(0),
-        schemaStack_(allocator, schemaStackCapacity),
-        documentStack_(allocator, documentStackCapacity),
-        valid_(true)
-#if RAPIDJSON_SCHEMA_VERBOSE
-        ,
-        depth_(0)
-#endif
-  {
-  }
-
-  //! Destructor.
-  ~GenericSchemaValidator() {
-    Reset();
-    RAPIDJSON_DELETE(ownStateAllocator_);
-  }
-
-  //! Reset the internal states.
-  void Reset() {
-    while (!schemaStack_.Empty())
-      PopSchema();
-    documentStack_.Clear();
-    valid_ = true;
-  }
-
-  //! Checks whether the current state is valid.
-  // Implementation of ISchemaValidator
-  virtual bool IsValid() const { return valid_; }
-
-  //! Gets the JSON pointer pointed to the invalid schema.
-  PointerType GetInvalidSchemaPointer() const {
-    return schemaStack_.Empty() ? PointerType()
-                                : schemaDocument_->GetPointer(&CurrentSchema());
-  }
-
-  //! Gets the keyword of invalid schema.
-  const Ch* GetInvalidSchemaKeyword() const {
-    return schemaStack_.Empty() ? 0 : CurrentContext().invalidKeyword;
-  }
-
-  //! Gets the JSON pointer pointed to the invalid value.
-  PointerType GetInvalidDocumentPointer() const {
-    return documentStack_.Empty()
-               ? PointerType()
-               : PointerType(documentStack_.template Bottom<Ch>(),
-                             documentStack_.GetSize() / sizeof(Ch));
-  }
-
-#if RAPIDJSON_SCHEMA_VERBOSE
-#define RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_()                        \
-  RAPIDJSON_MULTILINEMACRO_BEGIN                                        \
-  *documentStack_.template Push<Ch>() = '\0';                           \
-  documentStack_.template Pop<Ch>(1);                                   \
-  internal::PrintInvalidDocument(documentStack_.template Bottom<Ch>()); \
-  RAPIDJSON_MULTILINEMACRO_END
-#else
-#define RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_()
-#endif
-
-#define RAPIDJSON_SCHEMA_HANDLE_BEGIN_(method, arg1)   \
-  if (!valid_)                                         \
-    return false;                                      \
-  if (!BeginValue() || !CurrentSchema().method arg1) { \
-    RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_();          \
-    return valid_ = false;                             \
-  }
-
-#define RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(method, arg2)                    \
-  for (Context* context = schemaStack_.template Bottom<Context>();         \
-       context != schemaStack_.template End<Context>(); context++) {       \
-    if (context->hasher)                                                   \
-      static_cast<HasherType*>(context->hasher)->method arg2;              \
-    if (context->validators)                                               \
-      for (SizeType i_ = 0; i_ < context->validatorCount; i_++)            \
-        static_cast<GenericSchemaValidator*>(context->validators[i_])      \
-            ->method arg2;                                                 \
-    if (context->patternPropertiesValidators)                              \
-      for (SizeType i_ = 0; i_ < context->patternPropertiesValidatorCount; \
-           i_++)                                                           \
-        static_cast<GenericSchemaValidator*>(                              \
-            context->patternPropertiesValidators[i_])                      \
-            ->method arg2;                                                 \
-  }
-
-#define RAPIDJSON_SCHEMA_HANDLE_END_(method, arg2) \
-  return valid_ = EndValue() && outputHandler_.method arg2
-
-#define RAPIDJSON_SCHEMA_HANDLE_VALUE_(method, arg1, arg2) \
-  RAPIDJSON_SCHEMA_HANDLE_BEGIN_(method, arg1);            \
-  RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(method, arg2);         \
-  RAPIDJSON_SCHEMA_HANDLE_END_(method, arg2)
-
-  bool Null() { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Null, (CurrentContext()), ()); }
-  bool Bool(bool b) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(Bool, (CurrentContext(), b), (b));
-  }
-  bool Int(int i) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(Int, (CurrentContext(), i), (i));
-  }
-  bool Uint(unsigned u) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(Uint, (CurrentContext(), u), (u));
-  }
-  bool Int64(int64_t i) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(Int64, (CurrentContext(), i), (i));
-  }
-  bool Uint64(uint64_t u) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(Uint64, (CurrentContext(), u), (u));
-  }
-  bool Double(double d) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(Double, (CurrentContext(), d), (d));
-  }
-  bool RawNumber(const Ch* str, SizeType length, bool copy) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(
-        String, (CurrentContext(), str, length, copy), (str, length, copy));
-  }
-  bool String(const Ch* str, SizeType length, bool copy) {
-    RAPIDJSON_SCHEMA_HANDLE_VALUE_(
-        String, (CurrentContext(), str, length, copy), (str, length, copy));
-  }
-
-  bool StartObject() {
-    RAPIDJSON_SCHEMA_HANDLE_BEGIN_(StartObject, (CurrentContext()));
-    RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(StartObject, ());
-    return valid_ = outputHandler_.StartObject();
-  }
-
-  bool Key(const Ch* str, SizeType len, bool copy) {
-    if (!valid_)
-      return false;
-    AppendToken(str, len);
-    if (!CurrentSchema().Key(CurrentContext(), str, len, copy))
-      return valid_ = false;
-    RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(Key, (str, len, copy));
-    return valid_ = outputHandler_.Key(str, len, copy);
-  }
-
-  bool EndObject(SizeType memberCount) {
-    if (!valid_)
-      return false;
-    RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(EndObject, (memberCount));
-    if (!CurrentSchema().EndObject(CurrentContext(), memberCount))
-      return valid_ = false;
-    RAPIDJSON_SCHEMA_HANDLE_END_(EndObject, (memberCount));
-  }
-
-  bool StartArray() {
-    RAPIDJSON_SCHEMA_HANDLE_BEGIN_(StartArray, (CurrentContext()));
-    RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(StartArray, ());
-    return valid_ = outputHandler_.StartArray();
-  }
-
-  bool EndArray(SizeType elementCount) {
-    if (!valid_)
-      return false;
-    RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(EndArray, (elementCount));
-    if (!CurrentSchema().EndArray(CurrentContext(), elementCount))
-      return valid_ = false;
-    RAPIDJSON_SCHEMA_HANDLE_END_(EndArray, (elementCount));
-  }
-
-#undef RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_
-#undef RAPIDJSON_SCHEMA_HANDLE_BEGIN_
-#undef RAPIDJSON_SCHEMA_HANDLE_PARALLEL_
-#undef RAPIDJSON_SCHEMA_HANDLE_VALUE_
-
-  // Implementation of ISchemaStateFactory<SchemaType>
-  virtual ISchemaValidator* CreateSchemaValidator(const SchemaType& root) {
-    return new (GetStateAllocator().Malloc(sizeof(GenericSchemaValidator)))
-        GenericSchemaValidator(*schemaDocument_, root,
-#if RAPIDJSON_SCHEMA_VERBOSE
-                               depth_ + 1,
-#endif
-                               &GetStateAllocator());
-  }
-
-  virtual void DestroySchemaValidator(ISchemaValidator* validator) {
-    GenericSchemaValidator* v = static_cast<GenericSchemaValidator*>(validator);
-    v->~GenericSchemaValidator();
-    StateAllocator::Free(v);
-  }
-
-  virtual void* CreateHasher() {
-    return new (GetStateAllocator().Malloc(sizeof(HasherType)))
-        HasherType(&GetStateAllocator());
-  }
-
-  virtual uint64_t GetHashCode(void* hasher) {
-    return static_cast<HasherType*>(hasher)->GetHashCode();
-  }
-
-  virtual void DestroryHasher(void* hasher) {
-    HasherType* h = static_cast<HasherType*>(hasher);
-    h->~HasherType();
-    StateAllocator::Free(h);
-  }
-
-  virtual void* MallocState(size_t size) {
-    return GetStateAllocator().Malloc(size);
-  }
-
-  virtual void FreeState(void* p) { return StateAllocator::Free(p); }
-
- private:
-  typedef typename SchemaType::Context Context;
-  typedef GenericValue<UTF8<>, StateAllocator> HashCodeArray;
-  typedef internal::Hasher<EncodingType, StateAllocator> HasherType;
-
-  GenericSchemaValidator(
-      const SchemaDocumentType& schemaDocument,
-      const SchemaType& root,
-#if RAPIDJSON_SCHEMA_VERBOSE
-      unsigned depth,
-#endif
-      StateAllocator* allocator = 0,
-      size_t schemaStackCapacity = kDefaultSchemaStackCapacity,
-      size_t documentStackCapacity = kDefaultDocumentStackCapacity)
-      : schemaDocument_(&schemaDocument),
-        root_(root),
-        outputHandler_(GetNullHandler()),
-        stateAllocator_(allocator),
-        ownStateAllocator_(0),
-        schemaStack_(allocator, schemaStackCapacity),
-        documentStack_(allocator, documentStackCapacity),
-        valid_(true)
-#if RAPIDJSON_SCHEMA_VERBOSE
-        ,
-        depth_(depth)
-#endif
-  {
-  }
-
-  StateAllocator& GetStateAllocator() {
-    if (!stateAllocator_)
-      stateAllocator_ = ownStateAllocator_ = RAPIDJSON_NEW(StateAllocator());
-    return *stateAllocator_;
-  }
-
-  bool BeginValue() {
-    if (schemaStack_.Empty())
-      PushSchema(root_);
-    else {
-      if (CurrentContext().inArray)
-        internal::TokenHelper<internal::Stack<StateAllocator>,
-                              Ch>::AppendIndexToken(documentStack_,
-                                                    CurrentContext()
-                                                        .arrayElementIndex);
-
-      if (!CurrentSchema().BeginValue(CurrentContext()))
-        return false;
-
-      SizeType count = CurrentContext().patternPropertiesSchemaCount;
-      const SchemaType** sa = CurrentContext().patternPropertiesSchemas;
-      typename Context::PatternValidatorType patternValidatorType =
-          CurrentContext().valuePatternValidatorType;
-      bool valueUniqueness = CurrentContext().valueUniqueness;
-      if (CurrentContext().valueSchema)
-        PushSchema(*CurrentContext().valueSchema);
-
-      if (count > 0) {
-        CurrentContext().objectPatternValidatorType = patternValidatorType;
-        ISchemaValidator**& va = CurrentContext().patternPropertiesValidators;
-        SizeType& validatorCount =
-            CurrentContext().patternPropertiesValidatorCount;
-        va = static_cast<ISchemaValidator**>(
-            MallocState(sizeof(ISchemaValidator*) * count));
-        for (SizeType i = 0; i < count; i++)
-          va[validatorCount++] = CreateSchemaValidator(*sa[i]);
-      }
-
-      CurrentContext().arrayUniqueness = valueUniqueness;
-    }
-    return true;
-  }
-
-  bool EndValue() {
-    if (!CurrentSchema().EndValue(CurrentContext()))
-      return false;
-
-#if RAPIDJSON_SCHEMA_VERBOSE
-    GenericStringBuffer<EncodingType> sb;
-    schemaDocument_->GetPointer(&CurrentSchema()).Stringify(sb);
-
-    *documentStack_.template Push<Ch>() = '\0';
-    documentStack_.template Pop<Ch>(1);
-    internal::PrintValidatorPointers(depth_, sb.GetString(),
-                                     documentStack_.template Bottom<Ch>());
-#endif
-
-    uint64_t h =
-        CurrentContext().arrayUniqueness
-            ? static_cast<HasherType*>(CurrentContext().hasher)->GetHashCode()
-            : 0;
-
-    PopSchema();
-
-    if (!schemaStack_.Empty()) {
-      Context& context = CurrentContext();
-      if (context.valueUniqueness) {
-        HashCodeArray* a =
-            static_cast<HashCodeArray*>(context.arrayElementHashCodes);
-        if (!a)
-          CurrentContext().arrayElementHashCodes = a =
-              new (GetStateAllocator().Malloc(sizeof(HashCodeArray)))
-                  HashCodeArray(kArrayType);
-        for (typename HashCodeArray::ConstValueIterator itr = a->Begin();
-             itr != a->End(); ++itr)
-          if (itr->GetUint64() == h)
-            RAPIDJSON_INVALID_KEYWORD_RETURN(
-                SchemaType::GetUniqueItemsString());
-        a->PushBack(h, GetStateAllocator());
-      }
-    }
-
-    // Remove the last token of document pointer
-    while (!documentStack_.Empty() &&
-           *documentStack_.template Pop<Ch>(1) != '/')
-      ;
-
-    return true;
-  }
-
-  void AppendToken(const Ch* str, SizeType len) {
-    documentStack_.template Reserve<Ch>(
-        1 +
-        len * 2);  // worst case all characters are escaped as two characters
-    *documentStack_.template PushUnsafe<Ch>() = '/';
-    for (SizeType i = 0; i < len; i++) {
-      if (str[i] == '~') {
-        *documentStack_.template PushUnsafe<Ch>() = '~';
-        *documentStack_.template PushUnsafe<Ch>() = '0';
-      } else if (str[i] == '/') {
-        *documentStack_.template PushUnsafe<Ch>() = '~';
-        *documentStack_.template PushUnsafe<Ch>() = '1';
-      } else
-        *documentStack_.template PushUnsafe<Ch>() = str[i];
-    }
-  }
-
-  RAPIDJSON_FORCEINLINE void PushSchema(const SchemaType& schema) {
-    new (schemaStack_.template Push<Context>()) Context(*this, &schema);
-  }
-
-  RAPIDJSON_FORCEINLINE void PopSchema() {
-    Context* c = schemaStack_.template Pop<Context>(1);
-    if (HashCodeArray* a =
-            static_cast<HashCodeArray*>(c->arrayElementHashCodes)) {
-      a->~HashCodeArray();
-      StateAllocator::Free(a);
-    }
-    c->~Context();
-  }
-
-  const SchemaType& CurrentSchema() const {
-    return *schemaStack_.template Top<Context>()->schema;
-  }
-  Context& CurrentContext() { return *schemaStack_.template Top<Context>(); }
-  const Context& CurrentContext() const {
-    return *schemaStack_.template Top<Context>();
-  }
-
-  static OutputHandler& GetNullHandler() {
-    static OutputHandler nullHandler;
-    return nullHandler;
-  }
-
-  static const size_t kDefaultSchemaStackCapacity = 1024;
-  static const size_t kDefaultDocumentStackCapacity = 256;
-  const SchemaDocumentType* schemaDocument_;
-  const SchemaType& root_;
-  OutputHandler& outputHandler_;
-  StateAllocator* stateAllocator_;
-  StateAllocator* ownStateAllocator_;
-  internal::Stack<StateAllocator>
-      schemaStack_;  //!< stack to store the current path of schema
-                     //!< (BaseSchemaType *)
-  internal::Stack<StateAllocator>
-      documentStack_;  //!< stack to store the current path of validating
-                       //!< document (Ch)
-  bool valid_;
-#if RAPIDJSON_SCHEMA_VERBOSE
-  unsigned depth_;
-#endif
-};
-
-typedef GenericSchemaValidator<SchemaDocument> SchemaValidator;
-
-///////////////////////////////////////////////////////////////////////////////
-// SchemaValidatingReader
-
-//! A helper class for parsing with validation.
-/*!
-    This helper class is a functor, designed as a parameter of \ref
-   GenericDocument::Populate().
-
-    \tparam parseFlags Combination of \ref ParseFlag.
-    \tparam InputStream Type of input stream, implementing Stream concept.
-    \tparam SourceEncoding Encoding of the input stream.
-    \tparam SchemaDocumentType Type of schema document.
-    \tparam StackAllocator Allocator type for stack.
-*/
-template <unsigned parseFlags,
-          typename InputStream,
-          typename SourceEncoding,
-          typename SchemaDocumentType = SchemaDocument,
-          typename StackAllocator = CrtAllocator>
-class SchemaValidatingReader {
- public:
-  typedef typename SchemaDocumentType::PointerType PointerType;
-  typedef typename InputStream::Ch Ch;
-
-  //! Constructor
-  /*!
-      \param is Input stream.
-      \param sd Schema document.
-  */
-  SchemaValidatingReader(InputStream& is, const SchemaDocumentType& sd)
-      : is_(is), sd_(sd), invalidSchemaKeyword_(), isValid_(true) {}
-
-  template <typename Handler>
-  bool operator()(Handler& handler) {
-    GenericReader<SourceEncoding, typename SchemaDocumentType::EncodingType,
-                  StackAllocator>
-        reader;
-    GenericSchemaValidator<SchemaDocumentType, Handler> validator(sd_, handler);
-    parseResult_ = reader.template Parse<parseFlags>(is_, validator);
-
-    isValid_ = validator.IsValid();
-    if (isValid_) {
-      invalidSchemaPointer_ = PointerType();
-      invalidSchemaKeyword_ = 0;
-      invalidDocumentPointer_ = PointerType();
-    } else {
-      invalidSchemaPointer_ = validator.GetInvalidSchemaPointer();
-      invalidSchemaKeyword_ = validator.GetInvalidSchemaKeyword();
-      invalidDocumentPointer_ = validator.GetInvalidDocumentPointer();
-    }
-
-    return parseResult_;
-  }
-
-  const ParseResult& GetParseResult() const { return parseResult_; }
-  bool IsValid() const { return isValid_; }
-  const PointerType& GetInvalidSchemaPointer() const {
-    return invalidSchemaPointer_;
-  }
-  const Ch* GetInvalidSchemaKeyword() const { return invalidSchemaKeyword_; }
-  const PointerType& GetInvalidDocumentPointer() const {
-    return invalidDocumentPointer_;
-  }
-
- private:
-  InputStream& is_;
-  const SchemaDocumentType& sd_;
-
-  ParseResult parseResult_;
-  PointerType invalidSchemaPointer_;
-  const Ch* invalidSchemaKeyword_;
-  PointerType invalidDocumentPointer_;
-  bool isValid_;
-};
-
-RAPIDJSON_NAMESPACE_END
-RAPIDJSON_DIAG_POP
-
-#endif  // RAPIDJSON_SCHEMA_H_
diff --git a/third_party/rapidjson/stream.h b/third_party/rapidjson/stream.h
deleted file mode 100644
index fef82c25..00000000
--- a/third_party/rapidjson/stream.h
+++ /dev/null
@@ -1,179 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON available.
-// 
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed 
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
-// specific language governing permissions and limitations under the License.
-
-#include "rapidjson.h"
-
-#ifndef RAPIDJSON_STREAM_H_
-#define RAPIDJSON_STREAM_H_
-
-#include "encodings.h"
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-//  Stream
-
-/*! \class rapidjson::Stream
-    \brief Concept for reading and writing characters.
-
-    For read-only stream, no need to implement PutBegin(), Put(), Flush() and PutEnd().
-
-    For write-only stream, only need to implement Put() and Flush().
-
-\code
-concept Stream {
-    typename Ch;    //!< Character type of the stream.
-
-    //! Read the current character from stream without moving the read cursor.
-    Ch Peek() const;
-
-    //! Read the current character from stream and moving the read cursor to next character.
-    Ch Take();
-
-    //! Get the current read cursor.
-    //! \return Number of characters read from start.
-    size_t Tell();
-
-    //! Begin writing operation at the current read pointer.
-    //! \return The begin writer pointer.
-    Ch* PutBegin();
-
-    //! Write a character.
-    void Put(Ch c);
-
-    //! Flush the buffer.
-    void Flush();
-
-    //! End the writing operation.
-    //! \param begin The begin write pointer returned by PutBegin().
-    //! \return Number of characters written.
-    size_t PutEnd(Ch* begin);
-}
-\endcode
-*/
-
-//! Provides additional information for stream.
-/*!
-    By using traits pattern, this type provides a default configuration for stream.
-    For custom stream, this type can be specialized for other configuration.
-    See TEST(Reader, CustomStringStream) in readertest.cpp for example.
-*/
-template<typename Stream>
-struct StreamTraits {
-    //! Whether to make local copy of stream for optimization during parsing.
-    /*!
-        By default, for safety, streams do not use local copy optimization.
-        Stream that can be copied fast should specialize this, like StreamTraits<StringStream>.
-    */
-    enum { copyOptimization = 0 };
-};
-
-//! Reserve n characters for writing to a stream.
-template<typename Stream>
-inline void PutReserve(Stream& stream, size_t count) {
-    (void)stream;
-    (void)count;
-}
-
-//! Write character to a stream, presuming buffer is reserved.
-template<typename Stream>
-inline void PutUnsafe(Stream& stream, typename Stream::Ch c) {
-    stream.Put(c);
-}
-
-//! Put N copies of a character to a stream.
-template<typename Stream, typename Ch>
-inline void PutN(Stream& stream, Ch c, size_t n) {
-    PutReserve(stream, n);
-    for (size_t i = 0; i < n; i++)
-        PutUnsafe(stream, c);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// StringStream
-
-//! Read-only string stream.
-/*! \note implements Stream concept
-*/
-template <typename Encoding>
-struct GenericStringStream {
-    typedef typename Encoding::Ch Ch;
-
-    GenericStringStream(const Ch *src) : src_(src), head_(src) {}
-
-    Ch Peek() const { return *src_; }
-    Ch Take() { return *src_++; }
-    size_t Tell() const { return static_cast<size_t>(src_ - head_); }
-
-    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
-    void Put(Ch) { RAPIDJSON_ASSERT(false); }
-    void Flush() { RAPIDJSON_ASSERT(false); }
-    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-    const Ch* src_;     //!< Current read position.
-    const Ch* head_;    //!< Original head of the string.
-};
-
-template <typename Encoding>
-struct StreamTraits<GenericStringStream<Encoding> > {
-    enum { copyOptimization = 1 };
-};
-
-//! String stream with UTF8 encoding.
-typedef GenericStringStream<UTF8<> > StringStream;
-
-///////////////////////////////////////////////////////////////////////////////
-// InsituStringStream
-
-//! A read-write string stream.
-/*! This string stream is particularly designed for in-situ parsing.
-    \note implements Stream concept
-*/
-template <typename Encoding>
-struct GenericInsituStringStream {
-    typedef typename Encoding::Ch Ch;
-
-    GenericInsituStringStream(Ch *src) : src_(src), dst_(0), head_(src) {}
-
-    // Read
-    Ch Peek() { return *src_; }
-    Ch Take() { return *src_++; }
-    size_t Tell() { return static_cast<size_t>(src_ - head_); }
-
-    // Write
-    void Put(Ch c) { RAPIDJSON_ASSERT(dst_ != 0); *dst_++ = c; }
-
-    Ch* PutBegin() { return dst_ = src_; }
-    size_t PutEnd(Ch* begin) { return static_cast<size_t>(dst_ - begin); }
-    void Flush() {}
-
-    Ch* Push(size_t count) { Ch* begin = dst_; dst_ += count; return begin; }
-    void Pop(size_t count) { dst_ -= count; }
-
-    Ch* src_;
-    Ch* dst_;
-    Ch* head_;
-};
-
-template <typename Encoding>
-struct StreamTraits<GenericInsituStringStream<Encoding> > {
-    enum { copyOptimization = 1 };
-};
-
-//! Insitu string stream with UTF8 encoding.
-typedef GenericInsituStringStream<UTF8<> > InsituStringStream;
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_STREAM_H_
diff --git a/third_party/rapidjson/stringbuffer.h b/third_party/rapidjson/stringbuffer.h
deleted file mode 100644
index 733dc789..00000000
--- a/third_party/rapidjson/stringbuffer.h
+++ /dev/null
@@ -1,127 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_STRINGBUFFER_H_
-#define RAPIDJSON_STRINGBUFFER_H_
-
-#include "rapidjson/internal/stack.h"
-#include "stream.h"
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-#include <utility>  // std::move
-#endif
-
-#include "rapidjson/internal/stack.h"
-
-#if defined(__clang__)
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(c++ 98 - compat)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Represents an in-memory output stream.
-/*!
-    \tparam Encoding Encoding of the stream.
-    \tparam Allocator type for allocating memory buffer.
-    \note implements Stream concept
-*/
-template <typename Encoding, typename Allocator = CrtAllocator>
-class GenericStringBuffer {
- public:
-  typedef typename Encoding::Ch Ch;
-
-  GenericStringBuffer(Allocator* allocator = 0,
-                      size_t capacity = kDefaultCapacity)
-      : stack_(allocator, capacity) {}
-
-#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
-  GenericStringBuffer(GenericStringBuffer&& rhs)
-      : stack_(std::move(rhs.stack_)) {}
-  GenericStringBuffer& operator=(GenericStringBuffer&& rhs) {
-    if (&rhs != this)
-      stack_ = std::move(rhs.stack_);
-    return *this;
-  }
-#endif
-
-  void Put(Ch c) { *stack_.template Push<Ch>() = c; }
-  void PutUnsafe(Ch c) { *stack_.template PushUnsafe<Ch>() = c; }
-  void Flush() {}
-
-  void Clear() { stack_.Clear(); }
-  void ShrinkToFit() {
-    // Push and pop a null terminator. This is safe.
-    *stack_.template Push<Ch>() = '\0';
-    stack_.ShrinkToFit();
-    stack_.template Pop<Ch>(1);
-  }
-
-  void Reserve(size_t count) { stack_.template Reserve<Ch>(count); }
-  Ch* Push(size_t count) { return stack_.template Push<Ch>(count); }
-  Ch* PushUnsafe(size_t count) { return stack_.template PushUnsafe<Ch>(count); }
-  void Pop(size_t count) { stack_.template Pop<Ch>(count); }
-
-  const Ch* GetString() const {
-    // Push and pop a null terminator. This is safe.
-    *stack_.template Push<Ch>() = '\0';
-    stack_.template Pop<Ch>(1);
-
-    return stack_.template Bottom<Ch>();
-  }
-
-  size_t GetSize() const { return stack_.GetSize(); }
-
-  static const size_t kDefaultCapacity = 256;
-  mutable internal::Stack<Allocator> stack_;
-
- private:
-  // Prohibit copy constructor & assignment operator.
-  GenericStringBuffer(const GenericStringBuffer&);
-  GenericStringBuffer& operator=(const GenericStringBuffer&);
-};
-
-//! String buffer with UTF8 encoding
-typedef GenericStringBuffer<UTF8<> > StringBuffer;
-
-template <typename Encoding, typename Allocator>
-inline void PutReserve(GenericStringBuffer<Encoding, Allocator>& stream,
-                       size_t count) {
-  stream.Reserve(count);
-}
-
-template <typename Encoding, typename Allocator>
-inline void PutUnsafe(GenericStringBuffer<Encoding, Allocator>& stream,
-                      typename Encoding::Ch c) {
-  stream.PutUnsafe(c);
-}
-
-//! Implement specialized version of PutN() with memset() for better
-//! performance.
-template <>
-inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) {
-  std::memset(stream.stack_.Push<char>(n), c, n * sizeof(c));
-}
-
-RAPIDJSON_NAMESPACE_END
-
-#if defined(__clang__)
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_STRINGBUFFER_H_
diff --git a/third_party/rapidjson/writer.h b/third_party/rapidjson/writer.h
deleted file mode 100644
index a8096191..00000000
--- a/third_party/rapidjson/writer.h
+++ /dev/null
@@ -1,715 +0,0 @@
-// Tencent is pleased to support the open source community by making RapidJSON
-// available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All
-// rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file
-// except in compliance with the License. You may obtain a copy of the License
-// at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations under
-// the License.
-
-#ifndef RAPIDJSON_WRITER_H_
-#define RAPIDJSON_WRITER_H_
-
-#include <new>  // placement new
-#include "rapidjson/internal/dtoa.h"
-#include "rapidjson/internal/itoa.h"
-#include "rapidjson/internal/stack.h"
-#include "rapidjson/internal/strfunc.h"
-#include "stream.h"
-#include "stringbuffer.h"
-
-#if defined(RAPIDJSON_SIMD) && defined(_MSC_VER)
-#include <intrin.h>
-#pragma intrinsic(_BitScanForward)
-#endif
-#ifdef RAPIDJSON_SSE42
-#include <nmmintrin.h>
-#elif defined(RAPIDJSON_SSE2)
-#include <emmintrin.h>
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4127)  // conditional expression is constant
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-RAPIDJSON_DIAG_OFF(unreachable - code)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-///////////////////////////////////////////////////////////////////////////////
-// WriteFlag
-
-/*! \def RAPIDJSON_WRITE_DEFAULT_FLAGS
-    \ingroup RAPIDJSON_CONFIG
-    \brief User-defined kWriteDefaultFlags definition.
-
-    User can define this as any \c WriteFlag combinations.
-*/
-#ifndef RAPIDJSON_WRITE_DEFAULT_FLAGS
-#define RAPIDJSON_WRITE_DEFAULT_FLAGS kWriteNoFlags
-#endif
-
-//! Combination of writeFlags
-enum WriteFlag {
-  kWriteNoFlags = 0,               //!< No flags are set.
-  kWriteValidateEncodingFlag = 1,  //!< Validate encoding of JSON strings.
-  kWriteNanAndInfFlag = 2,  //!< Allow writing of Infinity, -Infinity and NaN.
-  kWriteDefaultFlags =
-      RAPIDJSON_WRITE_DEFAULT_FLAGS  //!< Default write flags. Can be customized
-                                     //!< by defining
-                                     //!< RAPIDJSON_WRITE_DEFAULT_FLAGS
-};
-
-//! JSON writer
-/*! Writer implements the concept Handler.
-    It generates JSON text by events to an output os.
-
-    User may programmatically calls the functions of a writer to generate JSON
-   text.
-
-    On the other side, a writer can also be passed to objects that generates
-   events,
-
-    for example Reader::Parse() and Document::Accept().
-
-    \tparam OutputStream Type of output stream.
-    \tparam SourceEncoding Encoding of source string.
-    \tparam TargetEncoding Encoding of output stream.
-    \tparam StackAllocator Type of allocator for allocating memory of stack.
-    \note implements Handler concept
-*/
-template <typename OutputStream,
-          typename SourceEncoding = UTF8<>,
-          typename TargetEncoding = UTF8<>,
-          typename StackAllocator = CrtAllocator,
-          unsigned writeFlags = kWriteDefaultFlags>
-class Writer {
- public:
-  typedef typename SourceEncoding::Ch Ch;
-
-  static const int kDefaultMaxDecimalPlaces = 324;
-
-  //! Constructor
-  /*! \param os Output stream.
-      \param stackAllocator User supplied allocator. If it is null, it will
-     create a private one. \param levelDepth Initial capacity of stack.
-  */
-  explicit Writer(OutputStream& os,
-                  StackAllocator* stackAllocator = 0,
-                  size_t levelDepth = kDefaultLevelDepth)
-      : os_(&os),
-        level_stack_(stackAllocator, levelDepth * sizeof(Level)),
-        maxDecimalPlaces_(kDefaultMaxDecimalPlaces),
-        hasRoot_(false) {}
-
-  explicit Writer(StackAllocator* allocator = 0,
-                  size_t levelDepth = kDefaultLevelDepth)
-      : os_(0),
-        level_stack_(allocator, levelDepth * sizeof(Level)),
-        maxDecimalPlaces_(kDefaultMaxDecimalPlaces),
-        hasRoot_(false) {}
-
-  //! Reset the writer with a new stream.
-  /*!
-      This function reset the writer with a new stream and default settings,
-      in order to make a Writer object reusable for output multiple JSONs.
-
-      \param os New output stream.
-      \code
-      Writer<OutputStream> writer(os1);
-      writer.StartObject();
-      // ...
-      writer.EndObject();
-
-      writer.Reset(os2);
-      writer.StartObject();
-      // ...
-      writer.EndObject();
-      \endcode
-  */
-  void Reset(OutputStream& os) {
-    os_ = &os;
-    hasRoot_ = false;
-    level_stack_.Clear();
-  }
-
-  //! Checks whether the output is a complete JSON.
-  /*!
-      A complete JSON has a complete root object or array.
-  */
-  bool IsComplete() const { return hasRoot_ && level_stack_.Empty(); }
-
-  int GetMaxDecimalPlaces() const { return maxDecimalPlaces_; }
-
-  //! Sets the maximum number of decimal places for double output.
-  /*!
-      This setting truncates the output with specified number of decimal places.
-
-      For example,
-
-      \code
-      writer.SetMaxDecimalPlaces(3);
-      writer.StartArray();
-      writer.Double(0.12345);                 // "0.123"
-      writer.Double(0.0001);                  // "0.0"
-      writer.Double(1.234567890123456e30);    // "1.234567890123456e30" (do not
-     truncate significand for positive exponent) writer.Double(1.23e-4); //
-     "0.0"                  (do truncate significand for negative exponent)
-      writer.EndArray();
-      \endcode
-
-      The default setting does not truncate any decimal places. You can restore
-     to this setting by calling \code
-      writer.SetMaxDecimalPlaces(Writer::kDefaultMaxDecimalPlaces);
-      \endcode
-  */
-  void SetMaxDecimalPlaces(int maxDecimalPlaces) {
-    maxDecimalPlaces_ = maxDecimalPlaces;
-  }
-
-  /*!@name Implementation of Handler
-      \see Handler
-  */
-  //@{
-
-  bool Null() {
-    Prefix(kNullType);
-    return EndValue(WriteNull());
-  }
-  bool Bool(bool b) {
-    Prefix(b ? kTrueType : kFalseType);
-    return EndValue(WriteBool(b));
-  }
-  bool Int(int i) {
-    Prefix(kNumberType);
-    return EndValue(WriteInt(i));
-  }
-  bool Uint(unsigned u) {
-    Prefix(kNumberType);
-    return EndValue(WriteUint(u));
-  }
-  bool Int64(int64_t i64) {
-    Prefix(kNumberType);
-    return EndValue(WriteInt64(i64));
-  }
-  bool Uint64(uint64_t u64) {
-    Prefix(kNumberType);
-    return EndValue(WriteUint64(u64));
-  }
-
-  //! Writes the given \c double value to the stream
-  /*!
-      \param d The value to be written.
-      \return Whether it is succeed.
-  */
-  bool Double(double d) {
-    Prefix(kNumberType);
-    return EndValue(WriteDouble(d));
-  }
-
-  bool RawNumber(const Ch* str, SizeType length, bool copy = false) {
-    (void)copy;
-    Prefix(kNumberType);
-    return EndValue(WriteString(str, length));
-  }
-
-  bool String(const Ch* str, SizeType length, bool copy = false) {
-    (void)copy;
-    Prefix(kStringType);
-    return EndValue(WriteString(str, length));
-  }
-
-#if RAPIDJSON_HAS_STDSTRING
-  bool String(const std::basic_string<Ch>& str) {
-    return String(str.data(), SizeType(str.size()));
-  }
-#endif
-
-  bool StartObject() {
-    Prefix(kObjectType);
-    new (level_stack_.template Push<Level>()) Level(false);
-    return WriteStartObject();
-  }
-
-  bool Key(const Ch* str, SizeType length, bool copy = false) {
-    return String(str, length, copy);
-  }
-
-  bool EndObject(SizeType memberCount = 0) {
-    (void)memberCount;
-    RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level));
-    RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray);
-    level_stack_.template Pop<Level>(1);
-    return EndValue(WriteEndObject());
-  }
-
-  bool StartArray() {
-    Prefix(kArrayType);
-    new (level_stack_.template Push<Level>()) Level(true);
-    return WriteStartArray();
-  }
-
-  bool EndArray(SizeType elementCount = 0) {
-    (void)elementCount;
-    RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level));
-    RAPIDJSON_ASSERT(level_stack_.template Top<Level>()->inArray);
-    level_stack_.template Pop<Level>(1);
-    return EndValue(WriteEndArray());
-  }
-  //@}
-
-  /*! @name Convenience extensions */
-  //@{
-
-  //! Simpler but slower overload.
-  bool String(const Ch* str) { return String(str, internal::StrLen(str)); }
-  bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); }
-
-  //@}
-
-  //! Write a raw JSON value.
-  /*!
-      For user to write a stringified JSON as a value.
-
-      \param json A well-formed JSON value. It should not contain null character
-     within [0, length - 1] range. \param length Length of the json. \param type
-     Type of the root of json.
-  */
-  bool RawValue(const Ch* json, size_t length, Type type) {
-    Prefix(type);
-    return EndValue(WriteRawValue(json, length));
-  }
-
- protected:
-  //! Information for each nested level
-  struct Level {
-    Level(bool inArray_) : valueCount(0), inArray(inArray_) {}
-    size_t valueCount;  //!< number of values in this level
-    bool inArray;       //!< true if in array, otherwise in object
-  };
-
-  static const size_t kDefaultLevelDepth = 32;
-
-  bool WriteNull() {
-    PutReserve(*os_, 4);
-    PutUnsafe(*os_, 'n');
-    PutUnsafe(*os_, 'u');
-    PutUnsafe(*os_, 'l');
-    PutUnsafe(*os_, 'l');
-    return true;
-  }
-
-  bool WriteBool(bool b) {
-    if (b) {
-      PutReserve(*os_, 4);
-      PutUnsafe(*os_, 't');
-      PutUnsafe(*os_, 'r');
-      PutUnsafe(*os_, 'u');
-      PutUnsafe(*os_, 'e');
-    } else {
-      PutReserve(*os_, 5);
-      PutUnsafe(*os_, 'f');
-      PutUnsafe(*os_, 'a');
-      PutUnsafe(*os_, 'l');
-      PutUnsafe(*os_, 's');
-      PutUnsafe(*os_, 'e');
-    }
-    return true;
-  }
-
-  bool WriteInt(int i) {
-    char buffer[11];
-    const char* end = internal::i32toa(i, buffer);
-    PutReserve(*os_, static_cast<size_t>(end - buffer));
-    for (const char* p = buffer; p != end; ++p)
-      PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
-    return true;
-  }
-
-  bool WriteUint(unsigned u) {
-    char buffer[10];
-    const char* end = internal::u32toa(u, buffer);
-    PutReserve(*os_, static_cast<size_t>(end - buffer));
-    for (const char* p = buffer; p != end; ++p)
-      PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
-    return true;
-  }
-
-  bool WriteInt64(int64_t i64) {
-    char buffer[21];
-    const char* end = internal::i64toa(i64, buffer);
-    PutReserve(*os_, static_cast<size_t>(end - buffer));
-    for (const char* p = buffer; p != end; ++p)
-      PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
-    return true;
-  }
-
-  bool WriteUint64(uint64_t u64) {
-    char buffer[20];
-    char* end = internal::u64toa(u64, buffer);
-    PutReserve(*os_, static_cast<size_t>(end - buffer));
-    for (char* p = buffer; p != end; ++p)
-      PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
-    return true;
-  }
-
-  bool WriteDouble(double d) {
-    if (internal::Double(d).IsNanOrInf()) {
-      if (!(writeFlags & kWriteNanAndInfFlag))
-        return false;
-      if (internal::Double(d).IsNan()) {
-        PutReserve(*os_, 3);
-        PutUnsafe(*os_, 'N');
-        PutUnsafe(*os_, 'a');
-        PutUnsafe(*os_, 'N');
-        return true;
-      }
-      if (internal::Double(d).Sign()) {
-        PutReserve(*os_, 9);
-        PutUnsafe(*os_, '-');
-      } else
-        PutReserve(*os_, 8);
-      PutUnsafe(*os_, 'I');
-      PutUnsafe(*os_, 'n');
-      PutUnsafe(*os_, 'f');
-      PutUnsafe(*os_, 'i');
-      PutUnsafe(*os_, 'n');
-      PutUnsafe(*os_, 'i');
-      PutUnsafe(*os_, 't');
-      PutUnsafe(*os_, 'y');
-      return true;
-    }
-
-    char buffer[25];
-    char* end = internal::dtoa(d, buffer, maxDecimalPlaces_);
-    PutReserve(*os_, static_cast<size_t>(end - buffer));
-    for (char* p = buffer; p != end; ++p)
-      PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
-    return true;
-  }
-
-  bool WriteString(const Ch* str, SizeType length) {
-    static const typename TargetEncoding::Ch hexDigits[16] = {
-        '0', '1', '2', '3', '4', '5', '6', '7',
-        '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-    static const char escape[256] = {
-#define Z16 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-        // 0    1    2    3    4    5    6    7    8    9    A    B    C    D E
-        // F
-        'u', 'u', 'u',  'u', 'u', 'u', 'u', 'u', 'b', 't',
-        'n', 'u', 'f',  'r', 'u', 'u',  // 00
-        'u', 'u', 'u',  'u', 'u', 'u', 'u', 'u', 'u', 'u',
-        'u', 'u', 'u',  'u', 'u', 'u',  // 10
-        0,   0,   '"',  0,   0,   0,   0,   0,   0,   0,
-        0,   0,   0,    0,   0,   0,  // 20
-        Z16, Z16,                     // 30~4F
-        0,   0,   0,    0,   0,   0,   0,   0,   0,   0,
-        0,   0,   '\\', 0,   0,   0,                       // 50
-        Z16, Z16, Z16,  Z16, Z16, Z16, Z16, Z16, Z16, Z16  // 60~FF
-#undef Z16
-    };
-
-    if (TargetEncoding::supportUnicode)
-      PutReserve(*os_, 2 + length * 6);  // "\uxxxx..."
-    else
-      PutReserve(*os_, 2 + length * 12);  // "\uxxxx\uyyyy..."
-
-    PutUnsafe(*os_, '\"');
-    GenericStringStream<SourceEncoding> is(str);
-    while (ScanWriteUnescapedString(is, length)) {
-      const Ch c = is.Peek();
-      if (!TargetEncoding::supportUnicode && static_cast<unsigned>(c) >= 0x80) {
-        // Unicode escaping
-        unsigned codepoint;
-        if (RAPIDJSON_UNLIKELY(!SourceEncoding::Decode(is, &codepoint)))
-          return false;
-        PutUnsafe(*os_, '\\');
-        PutUnsafe(*os_, 'u');
-        if (codepoint <= 0xD7FF ||
-            (codepoint >= 0xE000 && codepoint <= 0xFFFF)) {
-          PutUnsafe(*os_, hexDigits[(codepoint >> 12) & 15]);
-          PutUnsafe(*os_, hexDigits[(codepoint >> 8) & 15]);
-          PutUnsafe(*os_, hexDigits[(codepoint >> 4) & 15]);
-          PutUnsafe(*os_, hexDigits[(codepoint)&15]);
-        } else {
-          RAPIDJSON_ASSERT(codepoint >= 0x010000 && codepoint <= 0x10FFFF);
-          // Surrogate pair
-          unsigned s = codepoint - 0x010000;
-          unsigned lead = (s >> 10) + 0xD800;
-          unsigned trail = (s & 0x3FF) + 0xDC00;
-          PutUnsafe(*os_, hexDigits[(lead >> 12) & 15]);
-          PutUnsafe(*os_, hexDigits[(lead >> 8) & 15]);
-          PutUnsafe(*os_, hexDigits[(lead >> 4) & 15]);
-          PutUnsafe(*os_, hexDigits[(lead)&15]);
-          PutUnsafe(*os_, '\\');
-          PutUnsafe(*os_, 'u');
-          PutUnsafe(*os_, hexDigits[(trail >> 12) & 15]);
-          PutUnsafe(*os_, hexDigits[(trail >> 8) & 15]);
-          PutUnsafe(*os_, hexDigits[(trail >> 4) & 15]);
-          PutUnsafe(*os_, hexDigits[(trail)&15]);
-        }
-      } else if ((sizeof(Ch) == 1 || static_cast<unsigned>(c) < 256) &&
-                 RAPIDJSON_UNLIKELY(escape[static_cast<unsigned char>(c)])) {
-        is.Take();
-        PutUnsafe(*os_, '\\');
-        PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(
-                            escape[static_cast<unsigned char>(c)]));
-        if (escape[static_cast<unsigned char>(c)] == 'u') {
-          PutUnsafe(*os_, '0');
-          PutUnsafe(*os_, '0');
-          PutUnsafe(*os_, hexDigits[static_cast<unsigned char>(c) >> 4]);
-          PutUnsafe(*os_, hexDigits[static_cast<unsigned char>(c) & 0xF]);
-        }
-      } else if (RAPIDJSON_UNLIKELY(!(
-                     writeFlags & kWriteValidateEncodingFlag
-                         ? Transcoder<SourceEncoding, TargetEncoding>::Validate(
-                               is, *os_)
-                         : Transcoder<SourceEncoding,
-                                      TargetEncoding>::TranscodeUnsafe(is,
-                                                                       *os_))))
-        return false;
-    }
-    PutUnsafe(*os_, '\"');
-    return true;
-  }
-
-  bool ScanWriteUnescapedString(GenericStringStream<SourceEncoding>& is,
-                                size_t length) {
-    return RAPIDJSON_LIKELY(is.Tell() < length);
-  }
-
-  bool WriteStartObject() {
-    os_->Put('{');
-    return true;
-  }
-  bool WriteEndObject() {
-    os_->Put('}');
-    return true;
-  }
-  bool WriteStartArray() {
-    os_->Put('[');
-    return true;
-  }
-  bool WriteEndArray() {
-    os_->Put(']');
-    return true;
-  }
-
-  bool WriteRawValue(const Ch* json, size_t length) {
-    PutReserve(*os_, length);
-    for (size_t i = 0; i < length; i++) {
-      RAPIDJSON_ASSERT(json[i] != '\0');
-      PutUnsafe(*os_, json[i]);
-    }
-    return true;
-  }
-
-  void Prefix(Type type) {
-    (void)type;
-    if (RAPIDJSON_LIKELY(level_stack_.GetSize() !=
-                         0)) {  // this value is not at root
-      Level* level = level_stack_.template Top<Level>();
-      if (level->valueCount > 0) {
-        if (level->inArray)
-          os_->Put(',');  // add comma if it is not the first element in array
-        else              // in object
-          os_->Put((level->valueCount % 2 == 0) ? ',' : ':');
-      }
-      if (!level->inArray && level->valueCount % 2 == 0)
-        RAPIDJSON_ASSERT(type == kStringType);  // if it's in object, then even
-                                                // number should be a name
-      level->valueCount++;
-    } else {
-      RAPIDJSON_ASSERT(!hasRoot_);  // Should only has one and only one root.
-      hasRoot_ = true;
-    }
-  }
-
-  // Flush the value if it is the top level one.
-  bool EndValue(bool ret) {
-    if (RAPIDJSON_UNLIKELY(level_stack_.Empty()))  // end of json text
-      os_->Flush();
-    return ret;
-  }
-
-  OutputStream* os_;
-  internal::Stack<StackAllocator> level_stack_;
-  int maxDecimalPlaces_;
-  bool hasRoot_;
-
- private:
-  // Prohibit copy constructor & assignment operator.
-  Writer(const Writer&);
-  Writer& operator=(const Writer&);
-};
-
-// Full specialization for StringStream to prevent memory copying
-
-template <>
-inline bool Writer<StringBuffer>::WriteInt(int i) {
-  char* buffer = os_->Push(11);
-  const char* end = internal::i32toa(i, buffer);
-  os_->Pop(static_cast<size_t>(11 - (end - buffer)));
-  return true;
-}
-
-template <>
-inline bool Writer<StringBuffer>::WriteUint(unsigned u) {
-  char* buffer = os_->Push(10);
-  const char* end = internal::u32toa(u, buffer);
-  os_->Pop(static_cast<size_t>(10 - (end - buffer)));
-  return true;
-}
-
-template <>
-inline bool Writer<StringBuffer>::WriteInt64(int64_t i64) {
-  char* buffer = os_->Push(21);
-  const char* end = internal::i64toa(i64, buffer);
-  os_->Pop(static_cast<size_t>(21 - (end - buffer)));
-  return true;
-}
-
-template <>
-inline bool Writer<StringBuffer>::WriteUint64(uint64_t u) {
-  char* buffer = os_->Push(20);
-  const char* end = internal::u64toa(u, buffer);
-  os_->Pop(static_cast<size_t>(20 - (end - buffer)));
-  return true;
-}
-
-template <>
-inline bool Writer<StringBuffer>::WriteDouble(double d) {
-  if (internal::Double(d).IsNanOrInf()) {
-    // Note: This code path can only be reached if
-    // (RAPIDJSON_WRITE_DEFAULT_FLAGS & kWriteNanAndInfFlag).
-    if (!(kWriteDefaultFlags & kWriteNanAndInfFlag))
-      return false;
-    if (internal::Double(d).IsNan()) {
-      PutReserve(*os_, 3);
-      PutUnsafe(*os_, 'N');
-      PutUnsafe(*os_, 'a');
-      PutUnsafe(*os_, 'N');
-      return true;
-    }
-    if (internal::Double(d).Sign()) {
-      PutReserve(*os_, 9);
-      PutUnsafe(*os_, '-');
-    } else
-      PutReserve(*os_, 8);
-    PutUnsafe(*os_, 'I');
-    PutUnsafe(*os_, 'n');
-    PutUnsafe(*os_, 'f');
-    PutUnsafe(*os_, 'i');
-    PutUnsafe(*os_, 'n');
-    PutUnsafe(*os_, 'i');
-    PutUnsafe(*os_, 't');
-    PutUnsafe(*os_, 'y');
-    return true;
-  }
-
-  char* buffer = os_->Push(25);
-  char* end = internal::dtoa(d, buffer, maxDecimalPlaces_);
-  os_->Pop(static_cast<size_t>(25 - (end - buffer)));
-  return true;
-}
-
-#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42)
-template <>
-inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is,
-                                                           size_t length) {
-  if (length < 16)
-    return RAPIDJSON_LIKELY(is.Tell() < length);
-
-  if (!RAPIDJSON_LIKELY(is.Tell() < length))
-    return false;
-
-  const char* p = is.src_;
-  const char* end = is.head_ + length;
-  const char* nextAligned = reinterpret_cast<const char*>(
-      (reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
-  const char* endAligned = reinterpret_cast<const char*>(
-      reinterpret_cast<size_t>(end) & static_cast<size_t>(~15));
-  if (nextAligned > end)
-    return true;
-
-  while (p != nextAligned)
-    if (*p < 0x20 || *p == '\"' || *p == '\\') {
-      is.src_ = p;
-      return RAPIDJSON_LIKELY(is.Tell() < length);
-    } else
-      os_->PutUnsafe(*p++);
-
-  // The rest of string using SIMD
-  static const char dquote[16] = {'\"', '\"', '\"', '\"', '\"', '\"',
-                                  '\"', '\"', '\"', '\"', '\"', '\"',
-                                  '\"', '\"', '\"', '\"'};
-  static const char bslash[16] = {'\\', '\\', '\\', '\\', '\\', '\\',
-                                  '\\', '\\', '\\', '\\', '\\', '\\',
-                                  '\\', '\\', '\\', '\\'};
-  static const char space[16] = {0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                 0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
-                                 0x19, 0x19, 0x19, 0x19};
-  const __m128i dq =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&dquote[0]));
-  const __m128i bs =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&bslash[0]));
-  const __m128i sp =
-      _mm_loadu_si128(reinterpret_cast<const __m128i*>(&space[0]));
-
-  for (; p != endAligned; p += 16) {
-    const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i*>(p));
-    const __m128i t1 = _mm_cmpeq_epi8(s, dq);
-    const __m128i t2 = _mm_cmpeq_epi8(s, bs);
-    const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp),
-                                      sp);  // s < 0x20 <=> max(s, 0x19) == 0x19
-    const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
-    unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
-    if (RAPIDJSON_UNLIKELY(r != 0)) {  // some of characters is escaped
-      SizeType len;
-#ifdef _MSC_VER  // Find the index of first escaped
-      unsigned long offset;
-      _BitScanForward(&offset, r);
-      len = offset;
-#else
-      len = static_cast<SizeType>(__builtin_ffs(r) - 1);
-#endif
-      char* q = reinterpret_cast<char*>(os_->PushUnsafe(len));
-      for (size_t i = 0; i < len; i++)
-        q[i] = p[i];
-
-      p += len;
-      break;
-    }
-    _mm_storeu_si128(reinterpret_cast<__m128i*>(os_->PushUnsafe(16)), s);
-  }
-
-  is.src_ = p;
-  return RAPIDJSON_LIKELY(is.Tell() < length);
-}
-#endif  // defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42)
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_POP
-#endif
-
-#ifdef __clang__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif  // RAPIDJSON_RAPIDJSON_H_