[SOLVED] How do I temporarily disable a macro expansion in C/C++?

Issue

For some reason I need to temporarily disable some macros in a header file and the #undef MACRONAME will make the code compile but it will undef the existing macro.

Is there a way of just disabling it?

I should mention that you do not really know the values of the macros and that I'm looking for a cross compiler solution (should work at least in GCC and MSVC).

Solution

In MSVC you could use push_macro pragma, GCC supports it for compatibility with Microsoft Windows compilers.

#pragma push_macro("MACRONAME")
#undef MACRONAME

// some actions

#pragma pop_macro("MACRONAME")

Answered By - Kirill V. Lyadvinsky