usr/src/lib/libc/string/memchr.3

.\" 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.
.\"
.\" %sccs.include.redist.man%
.\"
.\"     @(#)memchr.3    5.4 (Berkeley) %G%
.\"
.Dd
.Dt MEMCHR 3
.Os
.Sh NAME
.Nm memchr
.Nd locate byte in byte string
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft void *
.Fn memchr "const void *b" "int c" "size_t len"
.Sh DESCRIPTION
The
.Fn memchr
function
locates the first occurrence of
.Fa c
(converted to an unsigned char)
in string
.Fa b .
.Sh RETURN VALUES
The
.Fn memchr
function
returns a pointer to the byte located,
or NULL if no such byte exists within
.Fa len
bytes.
.Sh SEE ALSO
.Xr index 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 STANDARDS
The
.Fn memchr
function
conforms to
.St -ansiC .