@node wcstok
@subsection @code{wcstok}
@findex wcstok

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/wcstok.html}

Gnulib module: wcstok
@mindex wcstok

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Cygwin 1.5.x.
@item
This function takes only two arguments on some platforms:
mingw, older MSVC.
@item
This function may use hidden state, ignoring the third argument, and thus
exhibit a bug when two or more @code{wcstok} iteration loops are being performed
in the same thread, on some platforms:
HP-UX 11.31.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot
accommodate all Unicode characters.
@end itemize
