The old detection logic here assumed that all versions of gcc >= 5 would
provide nullptr and `std::nullptr_t`; this is only true in gcc >= 5 when
the standard is explicitly set (e.g. `std=c++11`), and other detection
logic handles that.
This change allows Catch-using programs to compile with gcc >= 5, when
using the default (C++98) standard.
# By gnzlbg
# Via gnzlbg
* 'master' of https://github.com/gnzlbg/Catch:
Conditionally removes usage of deprecated features
Conflicts (resolved):
include/internal/catch_common.h
include/internal/catch_section.hpp
-add macros to test for C++ version and features
to catch_compiler_capabilities.hpp
- replaces dynamic exception specifications (deprecated)
with noexcept in C++ Version >= 11
- defines defaulted copy constructor/move constructors/assignment
in C++ Version >= 11 since their implicit generation is deprecated
under some circumstances.
- fixes#259
