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towupper (3)
TOWUPPER(3) Linux Programmer's Manual TOWUPPER(3)
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 toup-
per(3) function. If wc is a wide character, it is converted to upper-
case. 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 cur-
rent locale.
This function is not very appropriate for dealing with Unicode charac-
ters, because Unicode knows about three cases: upper, lower and title
case.
SEE ALSO
iswupper(3), towctrans(3), towlower(3)
GNU 1999-07-25 TOWUPPER(3)
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