2 @section @code{iswupper}
5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/iswupper.html}
7 Gnulib module: wctype-h
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
15 This function cannot be called from plain inline or extern inline functions
20 Portability problems not fixed by Gnulib:
23 On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and
24 therefore cannot accommodate all Unicode characters.
25 However, the Gnulib function @code{c32isupper}, provided by Gnulib module
26 @code{c32isupper}, operates on 32-bit wide characters and therefore does not