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[dragonfly.git] / lib / libc / string / bcopy.3
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1.\" Copyright (c) 1990, 1991, 1993
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" This code is derived from software contributed to Berkeley by
5.\" Chris Torek.
6.\"
7.\" Redistribution and use in source and binary forms, with or without
8.\" modification, are permitted provided that the following conditions
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10.\" 1. Redistributions of source code must retain the above copyright
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17.\" This product includes software developed by the University of
18.\" California, Berkeley and its contributors.
19.\" 4. Neither the name of the University nor the names of its contributors
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23.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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34.\"
35.\" @(#)bcopy.3 8.1 (Berkeley) 6/4/93
36.\" $FreeBSD: src/lib/libc/string/bcopy.3,v 1.3.2.4 2001/12/14 18:33:59 ru Exp $
37.\"
38.Dd June 4, 1993
39.Dt BCOPY 3
40.Os
41.Sh NAME
42.Nm bcopy
43.Nd copy byte string
44.Sh LIBRARY
45.Lb libc
46.Sh SYNOPSIS
47.In string.h
48.Ft void
49.Fn bcopy "const void *src" "void *dst" "size_t len"
50.Sh DESCRIPTION
51The
52.Fn bcopy
53function
54copies
55.Fa len
56bytes from string
57.Fa src
58to string
59.Fa dst .
60The two strings may overlap.
61If
62.Fa len
63is zero, no bytes are copied.
64.Sh SEE ALSO
65.Xr memccpy 3 ,
66.Xr memcpy 3 ,
67.Xr memmove 3 ,
68.Xr strcpy 3 ,
69.Xr strncpy 3
70.Sh HISTORY
71A
72.Fn bcopy
73function appeared in
74.Bx 4.2 .