87 lines
2.7 KiB
Groff
87 lines
2.7 KiB
Groff
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.\" $NetBSD: wcscasecmp.3,v 1.3 2010/12/16 17:42:28 wiz Exp $
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.\"
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.\" Copyright (c) 1990, 1991, 1993
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.\" The Regents of the University of California. 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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.\" Chris Torek.
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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. 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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.\" from: @(#)wcscasecmp.3 8.1 (Berkeley) 6/9/93
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.\"
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.Dd August 26, 2006
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.Dt WCSCASECMP 3
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.Os
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.Sh NAME
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.Nm wcscasecmp ,
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.Nm wcsncasecmp
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.Nd compare wide-character strings, ignoring case
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In wchar.h
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.Ft int
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.Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2"
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.Ft int
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.Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t len"
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.Sh DESCRIPTION
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The
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.Fn wcscasecmp
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and
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.Fn wcsncasecmp
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functions
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compare the nul-terminated strings
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.Fa s1
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and
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.Fa s2
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and return an integer greater than, equal to, or less than 0,
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according to whether
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.Fa s1
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is lexicographically greater than, equal to, or less than
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.Fa s2
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after translation of each corresponding character to lower-case.
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The strings themselves are not modified.
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.Pp
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The
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.Fn wcsncasecmp
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compares at most
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.Fa len
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characters.
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.Sh SEE ALSO
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.Xr wcscmp 3
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.Sh HISTORY
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The
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.Fn wcscasecmp
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and
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.Fn wcsncasecmp
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functions first appeared in
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.Nx 4.0 .
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.Sh NOTES
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If
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.Fa len
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is zero,
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.Fn wcsncasecmp
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returns always 0.
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