@node wcrtomb
@section @code{wcrtomb}
@findex wcrtomb

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/wcrtomb.html}

Gnulib module: wcrtomb

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, HP-UX 11.00, IRIX 6.5, Solaris 2.6, mingw, Interix 3.5.
@item
This function produces wrong characters in the C locale on some platforms:
Android 4.3.
@item
This function returns 0 when the first argument is NULL in some locales on some platforms:
AIX 4.3, OSF/1 5.1, Solaris 11.3.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
On AIX and Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
accommodate all Unicode characters.
@end itemize