2002-10-01 21:00:22 +04:00
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.\" $NetBSD: towlower.3,v 1.4 2002/10/01 17:00:22 junyoung Exp $
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2000-12-22 05:18:58 +03:00
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.\"
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.\" Copyright (c) 1989, 1991 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the American National Standards Committee X3, on Information
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.\" Processing Systems.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)tolower.3 5.2 (Berkeley) 6/29/91
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.\"
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.Dd December 22, 2000
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.Dt TOWLOWER 3
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.Os
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.Sh NAME
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.Nm towlower
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.Nd wide character case letter conversion utilities
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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2002-02-07 10:00:09 +03:00
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.Fd #include \*[Lt]wctype.h\*[Gt]
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2000-12-22 05:18:58 +03:00
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.Ft wint_t
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.Fn towlower "wint_t wc"
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.Ft wint_t
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2002-10-01 21:00:22 +04:00
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.Fn towupper "wint_t wc"
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2000-12-22 05:18:58 +03:00
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.Sh DESCRIPTION
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The
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.Fn towlower
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function converts an upper-case wide character to the corresponding lower-case
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letter.
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The
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.Fn towupper
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function converts an lower-case wide character to the corresponding upper-case
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letter.
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.Sh RETURN VALUES
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If the argument is an upper/lower-case letter, the
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.Fn tolower
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function returns the corresponding counterpart if there is
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one; otherwise the argument is returned unchanged.
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.Sh SEE ALSO
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.Xr tolower 3 ,
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.Xr toupper 3
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.Sh STANDARDS
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2002-03-18 11:03:39 +03:00
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The functions conform to
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.St -isoC99 .
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