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-.\" Copyright (c) 1990, 1991 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.
-.\"
-.\"	$OpenBSD: index.3,v 1.5 1999/06/29 18:01:32 aaron Exp $
-.\"
-.Dd April 19, 1991
-.Dt INDEX 3
-.Os
-.Sh NAME
-.Nm index
-.Nd locate character in string
-.Sh SYNOPSIS
-.Fd #include <string.h>
-.Ft char *
-.Fn index "const char *s" "int c"
-.Sh DESCRIPTION
-The
-.Fn index
-function
-locates the first character matching
-.Fa c
-(converted to a
-.Li char )
-in the null-terminated string
-.Fa s .
-.Sh RETURN VALUES
-If the character
-.Fa c
-is found, a pointer to it is returned; otherwise,
-.Dv NULL
-is returned.
-If
-.Fa c
-is '\e0',
-.Fn index
-locates the terminating '\e0'.
-.Sh SEE ALSO
-.Xr memchr 3 ,
-.Xr rindex 3 ,
-.Xr strchr 3 ,
-.Xr strcspn 3 ,
-.Xr strpbrk 3 ,
-.Xr strrchr 3 ,
-.Xr strsep 3 ,
-.Xr strspn 3 ,
-.Xr strstr 3 ,
-.Xr strtok 3
-.Sh HISTORY
-An
-.Fn index
-function appeared in
-.At v6 .