1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. 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.\" from: @(#)strchr.3 8.2 (Berkeley) 4/19/94 33.\" $NetBSD: strchr.3,v 1.11 2003/08/07 16:43:49 agc Exp $ 34.\" 35.Dd August 11, 2002 36.Dt STRCHR 3 37.Os 38.Sh NAME 39.Nm strchr 40.Nd locate character in string 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In string.h 45.Ft char * 46.Fn strchr "const char *s" "int c" 47.Sh DESCRIPTION 48The 49.Fn strchr 50function locates the first occurrence of 51.Ar c 52in the string pointed to by 53.Ar s . 54The terminating 55.Dv NUL 56character is considered part of the string. 57If 58.Fa c 59is 60.Ql \e0 , 61.Fn strchr 62locates the terminating 63.Ql \e0 . 64.Sh RETURN VALUES 65The function 66.Fn strchr 67returns a pointer to the located character, or 68.Dv NULL 69if the character does not appear in the string. 70.Sh EXAMPLES 71After the following call to 72.Fn strchr , 73.Va p 74will point to the string 75.Qq oobar : 76.Bd -literal -offset indent 77char *p; 78char *s = "foobar"; 79 80p = strchr(s, 'o'); 81.Ed 82.Sh SEE ALSO 83.Xr index 3 , 84.Xr memchr 3 , 85.Xr rindex 3 , 86.Xr strcspn 3 , 87.Xr strpbrk 3 , 88.Xr strrchr 3 , 89.Xr strsep 3 , 90.Xr strspn 3 , 91.Xr strstr 3 , 92.Xr strtok 3 93.Sh STANDARDS 94The 95.Fn strchr 96function 97conforms to 98.St -ansiC . 99