1 /* Copy wide character array. 2 Copyright (C) 1999, 2011-2021 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 1999. 4 5 This file is free software: you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as 7 published by the Free Software Foundation; either version 3 of the 8 License, or (at your option) any later version. 9 10 This file 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 13 GNU 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 <https://www.gnu.org/licenses/>. */ 17 18 wchar_t * 19 wmemmove (wchar_t *dest, const wchar_t *src, size_t n) /* */ 20 { 21 if (dest < src) 22 { 23 wchar_t *destptr = dest; 24 const wchar_t *srcptr = src; 25 for (; n > 0; n--) 26 *destptr++ = *srcptr++; 27 } 28 else if (dest > src) 29 { 30 wchar_t *destptr = dest + n - 1; 31 const wchar_t *srcptr = src + n - 1; 32 for (; n > 0; n--) 33 *destptr-- = *srcptr--; 34 } 35 return dest; 36 }