1  /*
 2   * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 3   *
 4   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. The rights granted to you under the License
10   * may not be used to create, or enable the creation or redistribution of,
11   * unlawful or unlicensed copies of an Apple operating system, or to
12   * circumvent, violate, or enable the circumvention or violation of, any
13   * terms of an Apple operating system software license agreement.
14   *
15   * Please obtain a copy of the License at
16   * http://www.opensource.apple.com/apsl/ and read it before using this file.
17   *
18   * The Original Code and all software distributed under the License are
19   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23   * Please see the License for the specific language governing rights and
24   * limitations under the License.
25   *
26   * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27   */
28  /*
29   * @OSF_COPYRIGHT@
30   */
31  /*
32   * Mach Operating System
33   * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
34   * All Rights Reserved.
35   *
36   * Permission to use, copy, modify and distribute this software and its
37   * documentation is hereby granted, provided that both the copyright
38   * notice and this permission notice appear in all copies of the
39   * software, derivative works or modified versions, and any portions
40   * thereof, and that both notices appear in supporting documentation.
41   *
42   * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43   * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44   * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45   *
46   * Carnegie Mellon requests users of this software to return to
47   *
48   *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
49   *  School of Computer Science
50   *  Carnegie Mellon University
51   *  Pittsburgh PA 15213-3890
52   *
53   * any improvements or extensions that they make and grant Carnegie Mellon
54   * the rights to redistribute these changes.
55   */
56  /*
57   */
58  /*
59   *	File:	kern/macro_help.h
60   *
61   *	Provide help in making lint-free macro routines
62   *
63   */
64  
65  #ifndef _KERN_MACRO_HELP_H_
66  #define _KERN_MACRO_HELP_H_
67  
68  #include <mach/boolean.h>
69  
70  #ifdef  lint
71  boolean_t       NEVER;
72  boolean_t       ALWAYS;
73  #else   /* lint */
74  #define         NEVER           FALSE
75  #define         ALWAYS          TRUE
76  #endif  /* lint */
77  
78  #define         MACRO_BEGIN     do {
79  #define         MACRO_END       } while (NEVER)
80  
81  #define         MACRO_RETURN    if (ALWAYS) return
82  
83  #endif  /* _KERN_MACRO_HELP_H_ */