1.\" Copyright (c) 1990, 1991 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" $OpenBSD: strrchr.3,v 1.8 2007/05/31 19:19:32 jmc Exp $ 33.\" 34.Dd $Mdocdate: May 31 2007 $ 35.Dt STRRCHR 3 36.Os 37.Sh NAME 38.Nm strrchr , 39.Nm rindex 40.Nd locate last occurrence of a character in a string 41.Sh SYNOPSIS 42.Fd #include <string.h> 43.Ft char * 44.Fn strrchr "const char *s" "int c" 45.Ft char * 46.Fn rindex "const char *s" "int c" 47.Sh DESCRIPTION 48The 49.Fn strrchr 50function locates the last occurrence of the character 51.Fa c 52in the string 53.Fa s . 54The terminating 55.Tn NUL 56character is considered part of the string. 57If 58.Fa c 59is 60.Ql \e0 , 61.Fn strrchr 62locates the terminating 63.Ql \e0 . 64.Pp 65The 66.Fn rindex 67function is an old synonym for 68.Fn strrchr . 69.Sh RETURN VALUES 70The 71.Fn strrchr 72function returns a pointer to the located character or 73.Dv NULL 74if the character does not appear in the string. 75.Sh EXAMPLES 76After the following call to 77.Fn strrchr , 78.Va p 79will point to the string 80.Qq obar : 81.Bd -literal -offset indent 82char *p; 83char *s = "foobar"; 84 85p = strrchr(s, 'o'); 86.Ed 87.Sh SEE ALSO 88.Xr memchr 3 , 89.Xr strchr 3 , 90.Xr strcspn 3 , 91.Xr strpbrk 3 , 92.Xr strsep 3 , 93.Xr strspn 3 , 94.Xr strstr 3 , 95.Xr strtok 3 96.Sh STANDARDS 97The 98.Fn strrchr 99function conforms to 100.St -ansiC . 101.Pp 102The 103.Fn rindex 104function is deprecated and shouldn't be used in new code. 105