[cfe-commits] [patch] Emulate MSVC's preprocessor macro argument separator behavior

[João Matos]

Attached is a patch that implements an odd MSVC behaviour when handling
commas that come from nested macro expansions.

This behavior is well explained in the following post:

http://stackoverflow.com/questions/11469462/difference-between-gcc-and-microsoft-preprocessor


This is needed to correctly handle the new standard library headers in VS
2012.


-- 
João Matos
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