/* Copyright (C) 1991, 1992, 1995, 1996, 1997 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 Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <wctype.h>
#include <wchar.h>

#ifndef weak_alias
# define __wcscasecmp wcscasecmp
#endif

/* Compare S1 and S2, ignoring case, returning less than, equal to or
   greater than zero if S1 is lexicographically less than,
   equal to or greater than S2.  */
int
__wcscasecmp (s1, s2)
     const wchar_t *s1;
     const wchar_t *s2;
{
  wint_t c1, c2;

  if (s1 == s2)
    return 0;

  do
    {
      c1 = towlower (*s1++);
      c2 = towlower (*s2++);
      if (c1 == '\0')
	break;
    }
  while (c1 == c2);

  return c1 - c2;
}
#ifdef weak_alias
weak_alias (__wcscasecmp, wcscasecmp)
#endif