@section @code{iswblank}
@findex iswblank
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/iswblank.html}
+POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/iswblank.html}
-Gnulib module: ---
+Gnulib module: wctype
Portability problems fixed by Gnulib:
@itemize
+@item
+This function is missing on some platforms:
+AIX 4.3.2, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw.
+@item
+This function returns 0 for all possible arguments on some platforms:
+Linux libc5.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-AIX 4.3.2, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw.
-@item
-On Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
+On AIX and Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
accommodate all Unicode characters.
@end itemize