What's the closest GCC equivalent to this MSVC preprocessor code?
#pragma warning( push ) // Save the current warning state. #pragma warning( disable : 4723 ) // C4723: potential divide by 0 // Code which would generate warning 4723. #pragma warning( pop ) // Restore warnings to previous state.
We have code in commonly included headers which we do not want to generate a specific warning. However we want files which include those headers to continue to generate that warning (if the project has that warning enabled).
This is possible in GCC since version 4.6, or around June 2010 in the trunk.
Here's an example:
#pragma GCC diagnostic push #pragma GCC diagnostic error "-Wuninitialized" foo(a); /* error is given for this one */ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wuninitialized" foo(b); /* no diagnostic for this one */ #pragma GCC diagnostic pop foo(c); /* error is given for this one */ #pragma GCC diagnostic pop foo(d); /* depends on command line options */