NAME
towupper - convert a wide character to uppercase
SYNOPSIS
#include <wctype.h>
wint_t towupper(wint_t wc);
DESCRIPTION
The towupper() function is the wide-character equivalent of the
toupper(3) 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.
RETURN VALUE
The towupper() function returns the uppercase equivalent of wc, or WEOF
if wc is WEOF.
CONFORMING TO
C99.
NOTES
The behavior of towupper() depends on the LC_CTYPE category of the
current locale.
This function is not very appropriate for dealing with Unicode
characters, because Unicode knows about three cases: upper, lower and
title case.
SEE ALSO
iswupper(3), towctrans(3), towlower(3)
COLOPHON
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.