$OpenBSD: towlower.3,v 1.6 2017/09/05 03:16:13 schwarze Exp $
$NetBSD: towlower.3,v 1.7 2003/09/08 17:54:31 wiz Exp $
Copyright (c) 1989, 1991 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.
3. 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 5.2 (Berkeley) 6/29/91
.Dd $Mdocdate: April 7 2014 $ .Dt TOWLOWER 3 .Os .Sh NAME .Nm towlower , .Nm towlower_l , .Nm towupper , .Nm towupper_l .Nd wide-character case letter conversion utilities .Sh SYNOPSIS n wctype.h .Ft wint_t .Fn towlower "wint_t wc" .Ft wint_t .Fn towlower_l "wint_t wc" "locale_t locale" .Ft wint_t .Fn towupper "wint_t wc" .Ft wint_t .Fn towupper_l "wint_t wc" "locale_t locale" .Sh DESCRIPTION The .Fn towlower and .Fn towlower_l functions convert an upper-case wide character to the corresponding lower-case letter. The .Fn towupper and .Fn towupper_l functions convert a lower-case wide character to the corresponding upper-case letter.
$NetBSD: towlower.3,v 1.7 2003/09/08 17:54:31 wiz Exp $
Copyright (c) 1989, 1991 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.
3. 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 5.2 (Berkeley) 6/29/91
.Dd $Mdocdate: April 7 2014 $ .Dt TOWLOWER 3 .Os .Sh NAME .Nm towlower , .Nm towlower_l , .Nm towupper , .Nm towupper_l .Nd wide-character case letter conversion utilities .Sh SYNOPSIS n wctype.h .Ft wint_t .Fn towlower "wint_t wc" .Ft wint_t .Fn towlower_l "wint_t wc" "locale_t locale" .Ft wint_t .Fn towupper "wint_t wc" .Ft wint_t .Fn towupper_l "wint_t wc" "locale_t locale" .Sh DESCRIPTION The .Fn towlower and .Fn towlower_l functions convert an upper-case wide character to the corresponding lower-case letter. The .Fn towupper and .Fn towupper_l functions convert a lower-case wide character to the corresponding upper-case letter.
p The functions .Fn towlower_l and .Fn towupper_l use the specified .Fa locale , whereas .Fn towlower and .Fn towupper use the thread-specific locale set with .Xr uselocale 3 , falling back to the global locale set with .Xr setlocale 3 . .Sh RETURN VALUES These functions return the corresponding character, if any. Otherwise, .Fa wc is returned unchanged. .Sh SEE ALSO .Xr iswlower 3 , .Xr tolower 3 , .Xr toupper 3 , .Xr towctrans 3 .Sh STANDARDS The functions .Fn towlower and .Fn towupper conform to .St -isoC-amd1 and .St -isoC-99 , and .Fn towlower_l and .Fn towupper_l to .St -p1003.1-2008 . .Sh HISTORY The functions .Fn towlower and .Fn towupper have been available since .Ox 3.8 , and .Fn towlower_l and .Fn towupper_l since .Ox 6.2 .