.\" 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 and 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:
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.\"    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
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\"
.\"	$OpenBSD: strrchr.3,v 1.6 2000/04/21 15:24:20 aaron Exp $
.\"
.Dd June 29, 1991
.Dt STRRCHR 3
.Os
.Sh NAME
.Nm strrchr ,
.Nm rindex
.Nd locate last occurrence of a character in a string
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft char *
.Fn strrchr "const char *s" "int c"
.Ft char *
.Fn rindex "const char *s" "int c"
.Sh DESCRIPTION
The
.Fn strrchr
function locates the last occurrence of the character
.Fa c
in the string
.Fa s .
The terminating
.Tn NUL
character is considered part of the string.
If
.Fa c
is
.Ql \e0 ,
.Fn strrchr
locates the terminating
.Ql \e0 .
.Pp
The
.Fn rindex
function is an old synonym for
.Fn strrchr .
.Sh RETURN VALUES
The
.Fn strrchr
function returns a pointer to the located character or
.Dv NULL
if the character does not appear in the string.
.Sh EXAMPLES
After the following call to
.Fn strrchr ,
.Va p
will point to the string
.Qq obar :
.Bd -literal -offset indent
char *p;
char *s = "foobar";

p = strrchr(s, 'o');
.Ed
.Sh SEE ALSO
.Xr memchr 3 ,
.Xr strchr 3 ,
.Xr strcspn 3 ,
.Xr strpbrk 3 ,
.Xr strsep 3 ,
.Xr strspn 3 ,
.Xr strstr 3 ,
.Xr strtok 3
.Sh STANDARDS
The
.Fn strrchr
function conforms to
.St -ansiC .
.Pp
The
.Fn rindex
function is deprecated and shouldn't be used in new code.