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llvm-project/clang/include
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Richard Smith 5dfa37a761 Don't allow __VA_OPT__ to be detected by #ifdef. 
More study has discovered this to not actually be useful: because
current C++20 implementations reject `#ifdef __VA_OPT__`, this can't
really be used as a feature-test mechanism. And it's not too hard to
detect __VA_OPT__ without this, for example:

  #define THIRD_ARG(a, b, c, ...) c
  #define HAS_VA_OPT(...) THIRD_ARG(__VA_OPT__(,), 1, 0, )
  #if HAS_VA_OPT(?)

Partially reverts 0436ec2128.
 		2021-01-27 13:34:15 -08:00
..
clang Don't allow __VA_OPT__ to be detected by #ifdef. 2021-01-27 13:34:15 -08:00
clang-c [clang] Add a new nullability annotation for swift async: _Nullable_result 2020-12-07 17:19:20 -05:00
CMakeLists.txt
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