/* Convert wide character to multibyte character.

   Copyright (C) 2011-2017 Free Software Foundation, Inc.

   Written by Bruno Haible <bruno@clisp.org>, 2011.

   This program is free software: you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

int

wctomb (char *s, wchar_t wc)

{

  if (s == NULL)

    return 0;

  else

    {

      mbstate_t state;

      size_t result;

      memset (&state, 0, sizeof (mbstate_t));

      result = wcrtomb (s, wc, &state);

      if (result == (size_t)-1)

        return -1;

      return result;

    }

}