Libc-1082.50.1.tar.gz

[apple/libc.git] / locale / FreeBSD / towupper.3

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.\"	@(#)toupper.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD: src/lib/libc/locale/towupper.3,v 1.3 2007/01/09 00:28:01 imp Exp $
.\"
.Dd October 3, 2002
.Dt TOWUPPER 3
.Os
.Sh NAME
.Nm towupper ,
.Nm towupper_l
.Nd "lower case to upper case letter conversion (wide character version)"
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In wctype.h
.Ft wint_t
.Fo towupper
.Fa "wint_t wc"
.Fc
.In wctype.h
.In xlocale.h
.Ft wint_t
.Fo towupper_l
.Fa "wint_t wc"
.Fa "locale_t loc"
.Fc
.Sh DESCRIPTION
The
.Fn towupper
function converts a lower-case letter to the corresponding
upper-case letter.
.Pp
Although the
.Fn towupper
function uses the current locale, the
.Fn towupper_l
function may be passed a locale directly. See
.Xr xlocale 3
for more information.
.Sh RETURN VALUES
If the argument is a lower-case letter, the
.Fn towupper
function returns the corresponding upper-case letter if there is
one; otherwise, the argument is returned unchanged.
.Sh SEE ALSO
.Xr iswupper 3 ,
.Xr toupper 3 ,
.Xr towlower 3 ,
.Xr wctrans 3 ,
.Xr xlocale 3
.Sh STANDARDS
The
.Fn towupper
function conforms to
.St -isoC-99 .