.\" Copyright (c) 1990, 1991 The Regents of the University of California.
.\" All rights reserved.
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.\" This code is derived from software contributed to Berkeley by
.\" Chris Torek.
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.\" 3. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
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.\"	$OpenBSD: bstring.3,v 1.9 2011/07/25 00:38:52 schwarze Exp $
.\"
.Dd $Mdocdate: July 25 2011 $
.Dt BSTRING 3
.Os
.Sh NAME
.Nm bstring
.Nd byte string operations
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft int
.Fn bcmp "const void *b1" "const void *b2" "size_t len"
.Ft void
.Fn bcopy "const void *src" "void *dst" "size_t len"
.Ft void
.Fn bzero "void *b" "size_t len"
.Ft void *
.Fn memchr "const void *b" "int c" "size_t len"
.Ft int
.Fn memcmp "const void *b1" "const void *b2" "size_t len"
.Ft void *
.Fn memccpy "void *dst" "const void *src" "int c" "size_t len"
.Ft void *
.Fn memcpy "void *dst" "const void *src" "size_t len"
.Ft void *
.Fn memmove "void *dst" "const void *src" "size_t len"
.Ft void *
.Fn memset "void *b" "int c" "size_t len"
.Sh DESCRIPTION
These functions operate on variable length strings of bytes.
They do not check for terminating NUL bytes as the routines
listed in
.Xr string 3
do.
.Pp
See the specific manual pages for more information.
.Sh SEE ALSO
.Xr bcmp 3 ,
.Xr bcopy 3 ,
.Xr bzero 3 ,
.Xr memccpy 3 ,
.Xr memchr 3 ,
.Xr memcmp 3 ,
.Xr memcpy 3 ,
.Xr memmove 3 ,
.Xr memset 3
.Sh STANDARDS
The functions
.Fn memchr ,
.Fn memcmp ,
.Fn memcpy ,
.Fn memmove ,
and
.Fn memset
conform to
.St -ansiC .
.Sh HISTORY
The
.Fn bcmp ,
.Fn bcopy ,
and
.Fn bzero
functions first appeared in
.Bx 4.2 .
The
.Fn memchr ,
.Fn memcmp ,
.Fn memccpy ,
.Fn memcpy ,
and
.Fn memset
functions first appeared in
.At V
and were reimplemented for
.Bx 4.3 Tahoe .
The
.Fn memmove
function first appeared in
.Bx 4.3 Reno .