[libcxx-commits] [PATCH] D150015: [libc++] Consistently enable __CORRECT_ISO_CPP_WCHAR_H_PROTO in mbstate.

[Fangrui Song via Phabricator via libcxx-commits]

MaskRay added inline comments.


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Comment at: libcxx/include/__mbstate_t.h:34
 #   include <sys/_types/_mbstate_t.h> // works on Darwin
-#elif !defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS) && __has_include_next(<wchar.h>)
-#   include_next <wchar.h> // fall back to the C standard provider of mbstate_t
+#elif !defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS) && __has_include(<wchar.h>)
+#  include <wchar.h> // fall back to the C standard provider of mbstate_t
----------------
Is `__has_include(<wchar.h>)` always true? libc++ ships a copy of `wchar.h` that dispatches to the C library `wchar.h` (through `#include_next <wchar.h>`).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150015/new/

https://reviews.llvm.org/D150015