1/* Copy piece of UTF-8/UTF-16/UTF-32 string.
2   Copyright (C) 1999, 2002, 2006, 2009-2010 Free Software Foundation, Inc.
3   Written by Bruno Haible <bruno@clisp.org>, 2002.
4
5   This program is free software: you can redistribute it and/or modify it
6   under the terms of the GNU Lesser General Public License as published
7   by the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#include <string.h>
19
20UNIT *
21FUNC (UNIT *dest, const UNIT *src, size_t n)
22{
23#if 0
24  if (dest < src)
25    {
26      UNIT *destptr = dest;
27      const UNIT *srcptr = src;
28
29      for (; n > 0; n--)
30        *destptr++ = *srcptr++;
31    }
32  else if (dest > src)
33    {
34      UNIT *destptr = dest + n - 1;
35      const UNIT *srcptr = src + n - 1;
36
37      for (; n > 0; n--)
38        *destptr-- = *srcptr--;
39    }
40#else
41  memmove ((char *) dest, (const char *) src, n * sizeof (UNIT));
42#endif
43  return dest;
44}
45