[PATCH] D41780: Preserve unknown STDC pragma through preprocessor

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

If you move all the #pragma STDC handlers from the lexer to the parser, you might be able to avoid adding an explicit STDC handler in PrintPreprocessedOutput.cpp.



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Comment at: test/Preprocessor/pragma_unknown.c:32
 #pragma STDC SO_GREAT  // expected-warning {{unknown pragma in STDC namespace}}
 #pragma STDC   // expected-warning {{unknown pragma in STDC namespace}}
 
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Maybe add CHECK lines to make sure these come out correctly?


Repository:
  rC Clang

https://reviews.llvm.org/D41780