/* Copyright (C) 1991-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

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

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <stdlib.h>

#include <string.h>

#include <wchar.h>

/* Convert the string of multibyte characters in S to `wchar_t's in

   PWCS, writing no more than N.  Return the number written,

   or (size_t) -1 if an invalid multibyte character is encountered.

   Attention: this function should NEVER be intentionally used.

   The interface is completely stupid.  The state is shared between

   all conversion functions.  You should use instead the restartable

   version `mbsrtowcs'.  */

size_t

mbstowcs (wchar_t *pwcs, const char *s, size_t n)

{

  mbstate_t state;

  memset (&state, '\0', sizeof state);

  /* Return how many we wrote (or maybe an error).  */

  return __mbsrtowcs (pwcs, &s, n, &state);

}