toolchain/gcc/newlib/libc/string/wmemcpy.c

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