/* 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 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, 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!");
	return result != 0;
}