/* Copyright (C) 1995-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.

   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 <wchar.h>

#ifdef WCSCSPN

# define wcscspn WCSCSPN

#endif

/* Return the length of the maximum initial segment

   of WCS which contains only wide-characters not in REJECT.  */

size_t

wcscspn (const wchar_t *wcs, const wchar_t *reject)

{

  size_t count = 0;

  while (*wcs != L'\0')

    if (wcschr (reject, *wcs++) == NULL)

      ++count;

    else

      return count;

  return count;

}