freebsd-nq/lib/libc/string/memchr.3

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.\"     @(#)memchr.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd June 4, 1993
.Dt MEMCHR 3
.Os
.Sh NAME
.Nm memchr
.Nd locate byte in byte string
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In 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 memmem 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 -isoC .