How can I detect g++ and MinGW in C++ preprocessor?

Question

I want to do something like:

#ifdef GCC
#define GetFunctionName() string(\"My function name is \") + __PRETTY_FUNCTION__;
#endif

Since I wa

Answer 1

For GCC:

#ifdef __GNUC__

For MinGW:

#ifdef __MINGW32__

x86_64-w64-mingw32-gcc defines both __MINGW32__ and __MINGW64__.