Portability of #warning preprocessor directive

Question

I know that the #warning directive is not standard C/C++, but several compilers support it, including gcc/g++. But for those that don\'t support it, will t

Answer 1

You are likely to get at least an unrecognized directive warning from compilers that don't recognize #warning, even if the code block is not included in your compilation. That might or might not be treated as an error - the compiler could legitimately treat it as an error, but many would be more lax.

Are you aware of (can you name) a compiler other than GCC/G++ that provides #warning? [Edited: Sun Solaris 10 (Sparc) and the Studio 11 C/C++ compilers both accept #warning.]