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