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- /*
- * Mach Operating System
- * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
- /*
- * HISTORY
- * $Log: boolean.h,v $
- * Revision 2.4 93/01/14 17:41:23 danner
- * Standardized include symbol name.
- * [92/06/10 pds]
- *
- * Revision 2.3 91/05/14 16:51:06 mrt
- * Correcting copyright
- *
- * Revision 2.2 91/02/05 17:31:38 mrt
- * Changed to new Mach copyright
- * [91/02/01 17:16:36 mrt]
- *
- * Revision 2.1 89/08/03 15:59:35 rwd
- * Created.
- *
- * Revision 2.4 89/02/25 18:12:08 gm0w
- * Changes for cleanup.
- *
- * Revision 2.3 89/02/07 00:51:34 mwyoung
- * Relocated from sys/boolean.h
- *
- * Revision 2.2 88/08/24 02:23:06 mwyoung
- * Adjusted include file references.
- * [88/08/17 02:09:46 mwyoung]
- *
- *
- * 18-Nov-87 Avadis Tevanian (avie) at Carnegie-Mellon University
- * Header file fixup, purge history.
- *
- */
- /*
- * File: mach/boolean.h
- *
- * Boolean data type.
- *
- */
-
- #ifndef _MACH_BOOLEAN_H_
- #define _MACH_BOOLEAN_H_
-
- /*
- * Pick up "boolean_t" type definition
- */
-
- #ifndef ASSEMBLER
- #import <mach/machine/boolean.h>
- #endif /* ASSEMBLER */
-
- #endif /* _MACH_BOOLEAN_H_ */
-
- /*
- * Define TRUE and FALSE, only if they haven't been before,
- * and not if they're explicitly refused. Note that we're
- * outside the BOOLEAN_H_ conditional, to avoid ordering
- * problems.
- */
-
- #if !defined(NOBOOL)
-
- #ifndef TRUE
- #define TRUE ((boolean_t) 1)
- #endif /* TRUE */
-
- #ifndef FALSE
- #define FALSE ((boolean_t) 0)
- #endif /* FALSE */
-
- #endif /* !defined(NOBOOL) */
-