https://llvm.org/bugs/show_bug.cgi?id=30588
Richard Smith <richard-l...@metafoo.co.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |richard-l...@metafoo.co.uk
Resolution|--- |INVALID
--- Comment #1 from Richard Smith <richard-l...@metafoo.co.uk> ---
Your code is incorrect. The token paste would form the invalid token
"A::B""::""C"; the MS preprocessor has a bug where it accepts such invalid
token pastes.
You have a couple of options here:
1) You can fix your code by removing the ##s:
#define M(O,P) #O ## "::" ## #P
2) You can pass -Wno-invalid-token-paste to Clang to disable the error; we will
then give the same incorrect result as MSVC.
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