[PATCH] D41780: Preserve unknown STDC pragma through preprocessor

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

Should be safe, I think; currently, FENV_ACCESS and CX_LIMITED_RANGE have no effect, and when we do start supporting them, we'll probably want to handle them in the parser, like we do for FP_CONTRACT.


Repository:
  rC Clang

https://reviews.llvm.org/D41780