1 /*
2 FUNCTION
3 <<wmemmove>>---copy wide characters in memory with overlapping areas
4
5 SYNOPSIS
6 #include <wchar.h>
7 wchar_t *wmemmove(wchar_t *<[d]>, const wchar_t *<[s]>, size_t <[n]>);
8
9 DESCRIPTION
10 The <<wmemmove>> function copies <[n]> wide characters from the object
11 pointed to by <[s]> to the object pointed to by <[d]>. Copying takes
12 place as if the <[n]> wide characters from the object pointed to by
13 <[s]> are first copied into a temporary array of <[n]> wide characters
14 that does not overlap the objects pointed to by <[d]> or <[s]>, and then
15 the <[n]> wide characters from the temporary array are copied into the
16 object pointed to by <[d]>.
17
18 This function is not affected by locale and all wchar_t values are
19 treated identically. The null wide character and wchar_t values not
20 corresponding to valid characters are not treated specially.
21
22 If <[n]> is zero, <[d]> and <[s]> must be a valid pointers, and the
23 function copies zero wide characters.
24
25 RETURNS
26 The <<wmemmove>> function returns the value of <[d]>.
27
28 PORTABILITY
29 <<wmemmove>> is ISO/IEC 9899/AMD1:1995 (ISO C).
30
31 No supporting OS subroutines are required.
32 */
33
34 /* $NetBSD: wmemmove.c,v 1.1 2000/12/23 23:14:37 itojun Exp $ */
35
36 /*-
37 * Copyright (c)1999 Citrus Project,
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * citrus Id: wmemmove.c,v 1.2 2000/12/20 14:08:31 itojun Exp
62 */
63
64 #include <_ansi.h>
65 #include <string.h>
66 #include <wchar.h>
67
68 wchar_t *
wmemmove(wchar_t * d,const wchar_t * s,size_t n)69 wmemmove (wchar_t * d,
70 const wchar_t * s,
71 size_t n)
72 {
73
74 return (wchar_t *) memmove (d, s, n * sizeof (wchar_t));
75 }
76
