TOWUPPER

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
VERSIONS
CONFORMING TO
NOTES
SEE ALSO
COLOPHON

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.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Image grohtml-206111.png

VERSIONS

The towupper_l() function first appeared in glibc 2.3.

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

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