GCC/Clang/MSVC extension for specifying C enum size?

Question

Is there any extension feature to specify size of C enum on each compiler?

• GCC
• Clang
• MSVC

Answer 1

C++11 introduced a standardized way to do this, but since this is C you'll have to settle for a more simple method of making the last enum INT_MAX or a value thats large enough so that only the type you want can hold it (this is what the DirectX SDK does). Unfortunatly there is no way to force a maximum size (at least not without compiler specific extensions).