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135

answers:

1
+3  Q: 

What is the state of C99 support in major compilers / toolchains?

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?

+5  A: 
  1. MSVC: Intentionally not implemented unless it overlaps with C++
  2. GCC: Most of the useful parts are in (and have been for awhile). Some missing features.
  3. clang: Claims full C99 support
Yann Ramin  2010-05-11 16:28:50
Also GCC documents the level of C99 support here: http://gcc.gnu.org/c99status.html
Michael Burr  2010-05-11 19:16:25
Finally, I don't know if it counts as a 'major' compiler, but it's often considered important due to its level of standards support: Comeau claims full C99 support: http://www.comeaucomputing.com/features.html#c99
Michael Burr  2010-05-11 19:18:26

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