A response to a comment I made here made me stop and think: "I don't really know what the state of C99 support is."
Wikipedia gives details for a few compilers, but I'm not familiar enough with C99 to know all the bits and pieces of the standard, so I'm looking for a gestalt overview answer to the question:
What is the state of C99 support in major compilers / toolchains?
- MSVC: Intentionally not implemented unless it overlaps with C++
- GCC: Most of the useful parts are in (and have been for awhile). Some missing features.
- clang: Claims full C99 support
来源：https://stackoverflow.com/questions/2812433/what-is-the-state-of-c99-support-in-major-compilers-toolchains