lib/wcsdup-impl.h

   1 /* Duplicate a wide string.
   2    Copyright (C) 1999, 2011-2017 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 1999.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://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 }