/*
 *  Project   : tin - a Usenet reader
 *  Module    : bool.h
 *  Author    : Urs Janssen <urs@tin.org>
 *  Created   :
 *  Updated   : 2026-02-19
 *  Notes     :
 *
 * Copyright (c) 1997-2026 Urs Janssen <urs@tin.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */


#ifndef BOOL_H
#	define BOOL_H 1

#	if !defined(__cplusplus) && defined(HAVE_STDBOOL_H) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L
#		include <stdbool.h>
#		if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || defined(__bool_true_false_are_defined)
#			define t_bool bool
#			ifndef FALSE
#				define FALSE false
#			endif /* !FALSE */
#			ifndef TRUE
#				define TRUE true
#			endif /* !TRUE */
#		endif /* __STDC_VERSION__ >= 202311L || __bool_true_false_are_defined */
#	endif /* !__cplusplus && HAVE_STDBOOL_H && __STDC_VERSION__ >= 202311L */

#	ifndef FALSE
#		define FALSE 0
#	endif /* !FALSE */
#	ifndef TRUE
#		define TRUE (!FALSE)
#	endif /* !TRUE */
#	ifndef t_bool
		typedef unsigned t_bool;	/* don't make this a char or short! */
#	endif /* t_bool */

#	define bool_not(b) ((b) ? FALSE : TRUE)
#	define bool_equal(a,b) ((a) ? (b) : (bool_not(b)))
#	define bool_unparse(b) ((b) ? "TRUE" : "FALSE")

#endif /* !BOOL_H */
