1 /* Duplicate a wide string. 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 wcsdup (const wchar_t *s) /* */ 20 { 21 size_t n = wcslen (s) + 1; 22 wchar_t *copy = (wchar_t *) malloc (n * sizeof (wchar_t)); 23 if (copy != NULL) 24 return wmemcpy (copy, s, n); 25 else 26 /* The glibc documentation does not say that errno should be set to ENOMEM 27 here. */ 28 return NULL; 29 }