[cfe-dev] cwchar and cwctype

[Ryan Prichard via cfe-dev]

I noticed that the cwchar and cwctype headers in libc++ are doing more work
than I expected them to.  In particular:

 - cwchar aliases ::FILE into std.
 - cwchar includes cwctype
 - cwctype includes cctype

I have a C library whose wchar.h does not declare FILE, which AFAICT is
C-conforming.  Consequently, a user's source file that includes cwchar
doesn't compile.  The POSIX standard specifies that wchar.h declares FILE
as an extension to ISO C, but libc++'s headers don't generally include the
POSIX extensions into std.

>From my testing, it looks like neither of libstdc++ or MSVC 2015 do any of
the three inclusions above.

Is there a libc++ bug here?

-Ryan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20161222/67d4cd03/attachment.html>