> Michael Young wrote: > Specifically, I'm looking for a way to turn off a specific > warning inline, with the ability to restore it again - That exists only in the form of the __attribute__ ((unused)) mechanism. You can turn it off for an entire translation unit: -Wno-unused Actually you can get a little more fine-grained than that: -Wno-unused-label -Wno-unused-variable -Wno-unusued-parameter -Wno-unused-value The -Wno-unused does all of them. These options are not listed in the manual because ... Each of these specific warning options also has a negative for beginning `-Wno-' to turn off warnings; for example, `-Wno-implicit'. This manual lists only one of the two forms, whichever is not the default. > analogous to the #pragma warning directive supported in MS > VC++ (see > http://msdn.microsoft.com/library/default.asp?url=/library/en- > us/vclang/html/_predir_warning.asp for details). GCC stays away from using #pragma, because of its disadvantages. For instance, because it's a preprocessor directive, a #pragma cannot be constructed using macros. Thus to switch among #pragma's based on the compiler identity, you have to repeat #ifdef everywhere. #ifdef _MSVC #pragma warning (disable: NNNN) #endif ... #ifdef MSVC #pragma warning (enable: NNNN) #endif The use of the __attribute__ ((unused)) extension can be hidden behind macros.
