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

   1 /*
   2 FUNCTION
   3         <<wcscpy>>---copy a wide-character string
   4
   5 ANSI_SYNOPSIS
   6         #include <wchar.h>
   7         wchar_t *wcscpy(wchar_t *<[s1]>, const wchar_t *,<[s2]>);
   8
   9 TRAD_SYNOPSIS
  10         wchar_t *wcscpy(<[s1]>, <[s2]>
  11         wchar_t *<[s1]>;
  12         const wchar_t *<[s2]>;
  13
  14 DESCRIPTION
  15         The <<wcscpy>> function copies the wide-character string pointed to by
  16         <[s2]> (including the terminating null wide-character code) into the
  17         array pointed to by <[s1]>. If copying takes place between objects that
  18         overlap, the behaviour is undefined.
  19
  20 RETURNS
  21         The <<wcscpy>> function returns <[s1]>; no return value is reserved to
  22         indicate an error.
  23
  24 PORTABILITY
  25 <<wcscpy>> is ISO/IEC 9899/AMD1:1995 (ISO C).
  26 No supporting OS subroutines are required.
  27 */
  28
  29 /*      $NetBSD: wcscpy.c,v 1.1 2000/12/23 23:14:36 itojun Exp $        */
  30
  31 /*-
  32  * Copyright (c)1999 Citrus Project,
  33  * All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  * 1. Redistributions of source code must retain the above copyright
  39  *    notice, this list of conditions and the following disclaimer.
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      citrus Id: wcscpy.c,v 1.2 2000/12/21 04:51:09 itojun Exp
  57  */
  58
  59 #include <_ansi.h>
  60 #include <wchar.h>
  61
  62 wchar_t *
  63 _DEFUN (wcscpy, (s1, s2),
  64         wchar_t * s1 _AND
  65         _CONST wchar_t * s2)
  66 {
  67   wchar_t *p;
  68   _CONST wchar_t *q;
  69
  70   *s1 = '\0';
  71   p = s1;
  72   q = s2;
  73   while (*q)
  74     *p++ = *q++;
  75   *p = '\0';
  76
  77   return s1;
  78 }