5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/mbtowc.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function accumulates hidden state on some platforms:
17 glibc 2.8 (see @url{http://sourceware.org/bugzilla/show_bug.cgi?id=9674}).
19 On AIX and Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
20 accommodate all Unicode characters.