1  /* Copyright (C) 1995-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <wchar.h>
      19  #include <string.h>
      20  #include <stdlib.h>
      21  
      22  
      23  /* Duplicate S, returning an identical malloc'd string.	 */
      24  wchar_t *
      25  wcsdup (const wchar_t *s)
      26  {
      27    size_t len = (__wcslen (s) + 1) * sizeof (wchar_t);
      28    void *new = malloc (len);
      29  
      30    if (new == NULL)
      31      return NULL;
      32  
      33    return (wchar_t *) memcpy (new, (void *) s, len);
      34  }