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

.\" Copyright (c) 1989, 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the American National Standards Committee X3, on Information
.\" Processing Systems.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"	@(#)tolower.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD: src/lib/libc/locale/towlower.3,v 1.6 2007/01/09 00:28:01 imp Exp $
.\"
.Dd October 3, 2002
.Dt TOWLOWER 3
.Os
.Sh NAME
.Nm towlower
.Nd "upper case to lower case letter conversion (wide character version)"
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In wctype.h
.Ft wint_t
.Fn towlower "wint_t wc"
.Sh DESCRIPTION
The
.Fn towlower
function converts an upper-case letter to the corresponding lower-case
letter.
.Sh RETURN VALUES
If the argument is an upper-case letter, the
.Fn towlower
function returns the corresponding lower-case letter if there is
one; otherwise the argument is returned unchanged.
.Sh SEE ALSO
.Xr iswlower 3 ,
.Xr tolower 3 ,
.Xr towupper 3 ,
.Xr wctrans 3
.Sh STANDARDS
The
.Fn towlower
function conforms to
.St -isoC-99 .
Commit	Line	Data
5b2abdfb	1	.\" Copyright (c) 1989, 1991, 1993
e9ce8d39 A	2	.\" The Regents of the University of California. All rights reserved.
e9ce8d39 A	3	.\"
5b2abdfb A	4	.\" This code is derived from software contributed to Berkeley by
	5	.\" the American National Standards Committee X3, on Information
	6	.\" Processing Systems.
	7	.\"
e9ce8d39 A	8	.\" Redistribution and use in source and binary forms, with or without
	9	.\" modification, are permitted provided that the following conditions
	10	.\" are met:
	11	.\" 1. Redistributions of source code must retain the above copyright
	12	.\" notice, this list of conditions and the following disclaimer.
	13	.\" 2. Redistributions in binary form must reproduce the above copyright
	14	.\" notice, this list of conditions and the following disclaimer in the
	15	.\" documentation and/or other materials provided with the distribution.
e9ce8d39 A	16	.\" 4. Neither the name of the University nor the names of its contributors
	17	.\" may be used to endorse or promote products derived from this software
	18	.\" without specific prior written permission.
	19	.\"
	20	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	21	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	22	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	23	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	24	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	25	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	26	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	28	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	30	.\" SUCH DAMAGE.
	31	.\"
5b2abdfb	32	.\" @(#)tolower.3 8.1 (Berkeley) 6/4/93
1f2f436a	33	.\" $FreeBSD: src/lib/libc/locale/towlower.3,v 1.6 2007/01/09 00:28:01 imp Exp $
e9ce8d39	34	.\"
9385eb3d A	35	.Dd October 3, 2002
9385eb3d A	36	.Dt TOWLOWER 3
e9ce8d39 A	37	.Os
e9ce8d39 A	38	.Sh NAME
9385eb3d A	39	.Nm towlower
9385eb3d A	40	.Nd "upper case to lower case letter conversion (wide character version)"
e9ce8d39 A	41	.Sh LIBRARY
	42	.Lb libc
	43	.Sh SYNOPSIS
9385eb3d A	44	.In wctype.h
	45	.Ft wint_t
	46	.Fn towlower "wint_t wc"
e9ce8d39 A	47	.Sh DESCRIPTION
e9ce8d39 A	48	The
9385eb3d	49	.Fn towlower
5b2abdfb A	50	function converts an upper-case letter to the corresponding lower-case
5b2abdfb A	51	letter.
e9ce8d39	52	.Sh RETURN VALUES
5b2abdfb	53	If the argument is an upper-case letter, the
9385eb3d	54	.Fn towlower
5b2abdfb A	55	function returns the corresponding lower-case letter if there is
5b2abdfb A	56	one; otherwise the argument is returned unchanged.
e9ce8d39	57	.Sh SEE ALSO
9385eb3d A	58	.Xr iswlower 3 ,
	59	.Xr tolower 3 ,
	60	.Xr towupper 3 ,
	61	.Xr wctrans 3
5b2abdfb	62	.Sh STANDARDS
e9ce8d39	63	The
9385eb3d	64	.Fn towlower
5b2abdfb	65	function conforms to
9385eb3d	66	.St -isoC-99 .