9.1188 wmemset

POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/wmemset.html

Gnulib module: wmemset

Portability problems fixed by Gnulib:

• This function is missing on some platforms: HP-UX 11.00, IRIX 6.5, Solaris 2.6, MSVC 9, Interix 3.5.

Portability problems not fixed by Gnulib:

• On AIX and Windows platforms, wchar_t is a 16-bit type and therefore cannot accommodate all Unicode characters.