NetBSD/lib/libc/string/bcopy.3

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.\" from: @(#)bcopy.3 8.1 (Berkeley) 6/4/93
.\" $NetBSD: bcopy.3,v 1.15 2015/06/20 04:18:00 dholland Exp $
.\"
.Dd May 5, 2012
.Dt BCOPY 3
.Os
.Sh NAME
.Nm bcopy
.Nd copy byte string
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In strings.h
.Ft void
.Fn bcopy "const void *src" "void *dst" "size_t len"
.Sh DESCRIPTION
The
.Fn bcopy
function
copies
.Fa len
bytes from string
.Fa src
to string
.Fa dst .
The two strings may overlap.
If
.Fa len
is zero, no bytes are copied.
.Pp
This function is obsolete.
The functions
.Xr memcpy 3
and/or
.Xr memmove 3
should be used instead.
Note that
.Fn bcopy
takes its
.Fa src
and
.Fa dst
arguments in the opposite order from these.
.Sh SEE ALSO
.Xr memccpy 3 ,
.Xr memcpy 3 ,
.Xr memmove 3 ,
.Xr strcpy 3 ,
.Xr strncpy 3
.Sh STANDARDS
The
.Fn bcopy
function conforms to
.St -p1003.1-2001 .
The
.St -p1003.1-2004
revision marked it as legacy; the
.St -p1003.1-2008
revision removed it from the specification.
.Sh HISTORY
A
.Fn bcopy
function appeared in
.Bx 4.2 .