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5b2abdfb 1.\" Copyright (c) 1990, 1991, 1993
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2.\" The Regents of the University of California. All rights reserved.
3.\"
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4.\" This code is derived from software contributed to Berkeley by
5.\" Chris Torek.
6.\"
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7.\" Redistribution and use in source and binary forms, with or without
8.\" modification, are permitted provided that the following conditions
9.\" are met:
10.\" 1. Redistributions of source code must retain the above copyright
11.\" notice, this list of conditions and the following disclaimer.
12.\" 2. Redistributions in binary form must reproduce the above copyright
13.\" notice, this list of conditions and the following disclaimer in the
14.\" documentation and/or other materials provided with the distribution.
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15.\" 4. Neither the name of the University nor the names of its contributors
16.\" may be used to endorse or promote products derived from this software
17.\" without specific prior written permission.
18.\"
19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29.\" SUCH DAMAGE.
30.\"
5b2abdfb 31.\" @(#)bcopy.3 8.1 (Berkeley) 6/4/93
1f2f436a 32.\" $FreeBSD: src/lib/libc/string/bcopy.3,v 1.10 2007/01/09 00:28:11 imp Exp $
e9ce8d39 33.\"
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34.Dd June 4, 1993
35.Dt BCOPY 3
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36.Os
37.Sh NAME
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38.Nm bcopy
39.Nd copy byte string
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40.Sh LIBRARY
41.Lb libc
42.Sh SYNOPSIS
9385eb3d 43.In strings.h
5b2abdfb 44.Ft void
6465356a 45.Fn bcopy "const void *src" "void *dst" "size_t len"
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46.Sh DESCRIPTION
47The
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48.Fn bcopy
49function
50copies
6465356a 51.Fa len
5b2abdfb 52bytes from string
6465356a 53.Fa src
5b2abdfb 54to string
6465356a 55.Fa dst .
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56The two strings may overlap.
57If
6465356a 58.Fa len
5b2abdfb 59is zero, no bytes are copied.
e9ce8d39 60.Sh SEE ALSO
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61.Xr memccpy 3 ,
62.Xr memcpy 3 ,
63.Xr memmove 3 ,
64.Xr strcpy 3 ,
65.Xr strncpy 3
e9ce8d39 66.Sh HISTORY
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67A
68.Fn bcopy
69function appeared in
70.Bx 4.2 .
9385eb3d 71Its prototype existed previously in
3d9156a7 72.In string.h
9385eb3d 73before it was moved to
3d9156a7 74.In strings.h
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75for
76.St -p1003.1-2001
77compliance.
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78.Pp
79.Fn bcopy
80was deprecated in
81.St -p1003.1-2001
82and removed in
83.St -p1003.1-2008 .