My C99 code builds on clang (OS X), gcc (Linux), and VC++ (Windows).
Certainly, VS2013 has reasonable support for a lot of C99 code. VC++ has historically been the odd man out, but it's improved greatly in the last couple of versions. You can get really pretty and portable (!) vector math code written in Clang and GCC using vector extensions, but again, it's not available in MSVC.įor most of my current projects, I have no intent of supporting the (current) Microsoft C compiler. My favorite C language extension is SIMD vector arithmetic with infix operators. In particular, CPU-agnostic intrinsics for common instructions like atomics, popcount or count leading zeros as well SIMD arithmetic would be great. I'd also like to have compatibility of some language extension features, such as built-in functions and attributes. A popular option is to compile C code as C++ inside an "extern C" block to stop name mangling, but this isn't too clean either. having to move variables to beginning of block (c89 style) is just miserable. MSVC is a big pain in the ass for me, as I tend to write C code (not ++ usually) and Microsoft's C compiler is the one with the worst support for language level features (out of widely used compilers).
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