newlib/libc/string/wmemset.c

   1 /*
   2 FUNCTION
   3        <<wmemset>>---set wide characters in memory
   4
   5 SYNOPSIS
   6        #include <wchar.h>
   7        wchar_t *wmemset(wchar_t *<[s]>, wchar_t <[c]>, size_t <[n]>);
   8
   9 DESCRIPTION
  10        The <<wmemset>> function copies the value of <[c]> into each of the
  11        first <[n]> wide characters of the object pointed to by <[s]>.  This
  12        function is not affected by locale and all wchar_t values are treated
  13        identically.  The null wide character and wchar_t values not
  14        corresponding to valid characters are not treated specially.
  15
  16        If <[n]> is zero, <[s]> must be a valid pointer and the function
  17        copies zero wide characters.
  18
  19 RETURNS
  20        The <<wmemset>> function returns the value of <[s]>.
  21
  22 PORTABILITY
  23 <<wmemset>> is ISO/IEC 9899/AMD1:1995 (ISO C).
  24
  25 No supporting OS subroutines are required.
  26 */
  27
  28 /*     $NetBSD: wmemset.c,v 1.1 2000/12/23 23:14:37 itojun Exp $       */
  29
  30 /*-
  31  * Copyright (c)1999 Citrus Project,
  32  * All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      citrus Id: wmemset.c,v 1.2 2000/12/20 14:08:31 itojun Exp
  56  */
  57
  58 #include <_ansi.h>
  59 #include <wchar.h>
  60
  61 wchar_t *
  62 wmemset (wchar_t *s,
  63         wchar_t c,
  64         size_t n)
  65 {
  66         size_t i;
  67         wchar_t *p;
  68
  69         p = (wchar_t *)s;
  70         for (i = 0; i < n; i++) {
  71                 *p = c;
  72                 p++;
  73         }
  74         return s;
  75 }