Provided by: manpages-pt-dev_20040726-2_all
towupper - convert a wide character to uppercase
wint_t towupper (wint_t wc);
The towupper function is the wide-character equivalent of the toupper
function. If wc is a wide character, it is converted to uppercase.
Characters which do not have case are returned unchanged. If wc is
WEOF, WEOF is returned.
The towupper function returns the uppercase equivalent of wc, or WEOF
if wc is WEOF.
ISO/ANSI C, UNIX98
towlower(3), towctrans(3), iswupper(3)
The behaviour of towupper depends on the LC_CTYPE category of the
This function is not very appropriate for dealing with Unicode
characters, because Unicode knows about three cases: upper, lower and