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-.\"     $OpenBSD: strcasecmp.3,v 1.14 2017/09/05 03:16:13 schwarze Exp $
-.\"
-.\" Copyright (c) 1990, 1991, 1993
-.\"     The Regents of the University of California.  All rights reserved.
-.\" Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" Chris Torek.
-.\" 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.
-.\"
-.\"     @(#)strcasecmp.3        8.1 (Berkeley) 6/9/93
-.\"
-.Dd $Mdocdate: September 5 2017 $
-.Dt STRCASECMP 3
-.Os
-.Sh NAME
-.Nm strcasecmp ,
-.Nm strcasecmp_l ,
-.Nm strncasecmp ,
-.Nm strncasecmp_l
-.Nd compare strings, ignoring case
-.Sh SYNOPSIS
-.In strings.h
-.Ft int
-.Fo strcasecmp
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fc
-.Ft int
-.Fo strcasecmp_l
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fa "locale_t locale"
-.Fc
-.Ft int
-.Fo strncasecmp
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fa "size_t len"
-.Fc
-.Ft int
-.Fo strncasecmp_l
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fa "size_t len"
-.Fa "locale_t locale"
-.Fc
-.Sh DESCRIPTION
-These functions compare the NUL-terminated strings
-.Fa s1
-and
-.Fa s2
-and return an integer greater than, equal to, or less than 0,
-according to whether
-.Fa s1
-is lexicographically greater than, equal to, or less than
-.Fa s2
-after translation of each corresponding character to lower-case.
-The strings themselves are not modified.
-The comparison is done using unsigned characters, so that
-.Sq Li \e200
-is greater than
-.Ql \e0 .
-.Pp
-.Fn strncasecmp
-and
-.Fn strncasecmp_l
-compare at most
-.Fa len
-characters.
-.Pp
-On
-.Ox ,
-these functions always use the C locale and ignore
-the global locale, the thread-specific locale, and the
-.Fa locale
-argument.
-.Sh ENVIRONMENT
-On other operating systems, the behaviour of
-.Fn strcasecmp
-and
-.Fn strncasecmp
-may depend on the
-.Dv LC_CTYPE
-.Xr locale 1 .
-.Sh SEE ALSO
-.Xr strcmp 3 ,
-.Xr strcoll 3 ,
-.Xr strxfrm 3 ,
-.Xr wcscasecmp 3
-.Sh STANDARDS
-These functions conform to
-.St -p1003.1-2008 .
-.Sh HISTORY
-The
-.Fn strcasecmp
-and
-.Fn strncasecmp
-functions have been available since
-.Bx 4.3 Tahoe ,
-and
-.Fn strcasecmp_l
-and
-.Fn strncasecmp_l
-since
-.Ox 6.2 .