cpp: Add convenience overload to set file name

* lang/cpp/src/data.h, lang/cpp/src/data.cpp (setFileName): Add
overload.
--

GnuPG-bug-id: 6342

NEWS

@@ -42,6 +42,7 @@ Noteworthy changes in version 1.18.1 (unreleased)
  gpgme_op_verify_ext                        NEW.
  cpp: GpgGenCardKeyInteractor::Curve        NEW.
  cpp: GpgGenCardKeyInteractor::setCurve     NEW.
+ cpp: Data::setFileName            EXTENDED: New overload
  qt: ListAllKeysJob::Option                 NEW.
  qt: ListAllKeysJob::Options                NEW.
  qt: ListAllKeysJob::setOptions             NEW.

lang/cpp/src/data.cpp

@@ -217,6 +217,11 @@ GpgME::Error GpgME::Data::setFileName(const char *name)
     return Error(gpgme_data_set_file_name(d->data, name));
 }
 
+GpgME::Error GpgME::Data::setFileName(const std::string &name)
+{
+    return Error(gpgme_data_set_file_name(d->data, name.c_str()));
+}
+
 ssize_t GpgME::Data::read(void *buffer, size_t length)
 {
     return gpgme_data_read(d->data, buffer, length);

lang/cpp/src/data.h

@@ -106,6 +106,7 @@ public:
 
     char *fileName() const;
     Error setFileName(const char *name);
+    Error setFileName(const std::string &name);
 
     ssize_t read(void *buffer, size_t length);
     ssize_t write(const void *buffer, size_t length);