.\" 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.
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\"
.\"	$OpenBSD: bstring.3,v 1.2 1996/08/19 08:33:59 tholo Exp $
.\"
.Dd April 19, 1991
.Dt BSTRING 3
.Os
.Sh NAME
.Nm bcmp ,
.Nm bcopy ,
.Nm bzero ,
.Nm memccpy ,
.Nm memchr ,
.Nm memcmp ,
.Nm memcpy ,
.Nm memmove,
.Nm memset
.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 null 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 functions
.Fn bzero
and
.Fn memccpy
appeared in
.Bx 4.3 ;
the functions
.Fn bcmp ,
.Fn bcopy ,
appeared in
.Bx 4.2 .