96 lines
3.0 KiB
Groff
96 lines
3.0 KiB
Groff
.\" Copyright (c) 1990, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" 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. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 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.
|
|
.\"
|
|
.\" from: @(#)strcasecmp.3 8.1 (Berkeley) 6/9/93
|
|
.\" $NetBSD: strcasecmp.3,v 1.9 1998/10/23 17:49:29 tron Exp $
|
|
.\"
|
|
.Dd June 9, 1993
|
|
.Dt STRCASECMP 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm strcasecmp ,
|
|
.Nm strncasecmp
|
|
.Nd compare strings, ignoring case
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.Fd #include <strings.h>
|
|
.Ft int
|
|
.Fn strcasecmp "const char *s1" "const char *s2"
|
|
.Ft int
|
|
.Fn strncasecmp "const char *s1" "const char *s2" "size_t len"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn strcasecmp
|
|
and
|
|
.Fn strncasecmp
|
|
functions
|
|
compare the null-terminated strings
|
|
.Fa s1
|
|
and
|
|
.Fa s2
|
|
and return an integer greater than, equal to, or less than 0,
|
|
according as
|
|
.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
|
|
The
|
|
.Fn strncasecmp
|
|
compares at most
|
|
.Fa len
|
|
characters.
|
|
.Sh SEE ALSO
|
|
.Xr bcmp 3 ,
|
|
.Xr memcmp 3 ,
|
|
.Xr strcmp 3 ,
|
|
.Xr strcoll 3 ,
|
|
.Xr strxfrm 3
|
|
.Sh HISTORY
|
|
The
|
|
.Fn strcasecmp
|
|
and
|
|
.Fn strncasecmp
|
|
.Sh NOTES
|
|
If
|
|
.Fa len
|
|
is zero
|
|
.Fn strncasecmp
|
|
returns always 0.
|