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1 | .\" Copyright (c) 1989, 1991, 1993 | |
2 | .\" The Regents of the University of California. All rights reserved. | |
3 | .\" | |
4 | .\" This code is derived from software contributed to Berkeley by | |
5 | .\" the American National Standards Committee X3, on Information | |
6 | .\" Processing Systems. | |
7 | .\" | |
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. | |
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 | .\" | |
32 | .\" @(#)tolower.3 8.1 (Berkeley) 6/4/93 | |
33 | .\" $FreeBSD: src/lib/libc/locale/towlower.3,v 1.6 2007/01/09 00:28:01 imp Exp $ | |
34 | .\" | |
35 | .Dd October 3, 2002 | |
36 | .Dt TOWLOWER 3 | |
37 | .Os | |
38 | .Sh NAME | |
39 | .Nm towlower , | |
40 | .Nm towlower_l | |
41 | .Nd "upper case to lower case letter conversion (wide character version)" | |
42 | .Sh LIBRARY | |
43 | .Lb libc | |
44 | .Sh SYNOPSIS | |
45 | .In wctype.h | |
46 | .Ft wint_t | |
47 | .Fo towlower | |
48 | .Fa "wint_t wc" | |
49 | .Fc | |
50 | .In wctype.h | |
51 | .In xlocale.h | |
52 | .Ft wint_t | |
53 | .Fo towlower_l | |
54 | .Fa "wint_t wc" | |
55 | .Fa "locale_t loc" | |
56 | .Fc | |
57 | .Sh DESCRIPTION | |
58 | The | |
59 | .Fn towlower | |
60 | function converts an upper-case letter to the corresponding lower-case | |
61 | letter. | |
62 | .Pp | |
63 | Although the | |
64 | .Fn towlower | |
65 | function uses the current locale, the | |
66 | .Fn towlower_l | |
67 | function may be passed a locale directly. See | |
68 | .Xr xlocale 3 | |
69 | for more information. | |
70 | .Sh RETURN VALUES | |
71 | If the argument is an upper-case letter, the | |
72 | .Fn towlower | |
73 | function returns the corresponding lower-case letter if there is | |
74 | one; otherwise, the argument is returned unchanged. | |
75 | .Sh SEE ALSO | |
76 | .Xr iswlower 3 , | |
77 | .Xr tolower 3 , | |
78 | .Xr towupper 3 , | |
79 | .Xr wctrans 3 , | |
80 | .Xr xlocale 3 | |
81 | .Sh STANDARDS | |
82 | The | |
83 | .Fn towlower | |
84 | function conforms to | |
85 | .St -isoC-99 . |