Hacking:Code Snippets/Miscellaneous

Determining compiler

To make use of GCC specific features, use the __GNUC__ macro:

#ifdef __GNUC__
...
#endif

You can also grep the code for __GNU to find out existing samples to learn from.

To make use of LLVM/Clang specific features, use the Clang language extensions.

See also:

Common predefined macros in GCC

Pre-defined Compiler Macros page at Sourceforge.net