Aaron Ballman 5ab944a8c6 [C2y] Add stdcountof.h (#140890) ...

WG14 N3469 changed _Lengthof to _Countof but it also introduced the
<stdcountof.h> header to expose a macro with a non-ugly identifier. GCC
vends this header as part of the compiler implementation, so Clang
should do the same.

Suggested-by: Alejandro Colomar <alx@kernel.org>

2025-05-28 06:41:01 -04:00

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