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/* Copyright (C) 1999, 2000 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.  */

#include <stdio.h>
#include <stdlib.h>
#include <wctype.h>

int
main (int argc, char *argv[])
{
  int result = 0;
  wint_t ch;


  for (ch = 0; ch < 128; ++ch)
    {
      if (iswlower (ch))
	{
	  /* Get corresponding upper case character.  */
	  wint_t up = towupper (ch);
	  /* This should have no effect.  */
	  wint_t low  = towlower (ch);

	  if ((ch != low) || (up == ch) || (up == low))
	    {
	      printf ("iswlower/towupper/towlower for character \\%x failed\n", ch);
	      result++;
	    }
	}
      if (iswupper (ch))
	{
	  /* Get corresponding lower case character.  */
	  wint_t low = towlower (ch);
	  /* This should have no effect.  */
	  wint_t up  = towupper (ch);

	  if ((ch != up) || (low == ch) || (up == low))
	    {
	      printf ("iswupper/towlower/towupper for character \\%x failed\n", ch);
	      result++;
	    }
	}
    }

  /* Finally some specific tests.  */
  ch = L'A';
  if (!iswupper (ch) || iswlower (ch))
    {
      printf ("!iswupper/iswlower (L'A') failed\n");
      result++;

    }
  ch = L'a';
  if (iswupper (ch) || !iswlower (ch))
    {
      printf ("iswupper/!iswlower (L'a') failed\n");
      result++;
    }
  if (towlower (L'A') != L'a')
    {
      printf ("towlower(L'A') failed\n");
      result++;
    }
  if (towupper (L'a') != L'A')
    {
      printf ("towupper(L'a') failed\n");
      result++;
    }

  if (result == 0)
    puts ("All test successful!");
  exit (result);
}