Resolve compiler warnings (#302)

* build: replace class noncopyable by C++11 deleted function declaration

C++11 is mandatory since commit v0.9.2-48-g8564b2f8, therefore we can
exercise the =delete keyword in class declarations to prohibit
copying.

* build: resolve -Woverloaded-virtual warnings

context.hpp:109:26: warning: "virtual vmime::context&
vmime::context::operator=(const vmime::context&)’ was hidden
[-Woverloaded-virtual=]
  109 |         virtual context& operator=(const context& ctx);
      |                          ^~~~~~~~
generationContext.hpp:153:28: note:   by ‘vmime::generationContext&
vmime::generationContext::operator=(const vmime::generationContext&)’
  153 |         generationContext& operator=(const generationContext& ctx);
      |                            ^~~~~~~~

AFAICS, there is no point in having "virtual" on an assignment operator.
Any derived classes' operator= has different signature anyway.
It is also the only class with a virtual operator=, so that's an indicator
for oddness as well.

* build: resolve -Wdeprecated-declarations warnings

encoding.cpp: In static member function "static const vmime::encoding
vmime::encoding::decideImpl(std::__cxx11::basic_string<char>::const_iterator,
std::__cxx11::basic_string<char>::const_iterator)":

encoding.cpp:161:29: warning: "std::binder2nd<_Operation>
std::bind2nd(const _Operation&, const _Tp&) [with _Operation =
less<unsigned char>; _Tp = int]" is deprecated: use "std::bind" instead
[-Wdeprecated-declarations]
  161 |                 std::bind2nd(std::less<unsigned char>(), 127)
      |                 ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

C++11 is mandatory, so just use a lambda already.

0 files changed, 0 insertions, 0 deletions