xref: /titanic_52/usr/src/stand/lib/sa/stddef.h (revision c2580b931007758eab8cb5ae8726ebe1588e259b)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SA_STDDEF_H
28 #define	_SA_STDDEF_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * Exported interfaces for standalone's subset of libc's <stddef.h>.
34  * All standalone code *must* use this header rather than libc's.
35  */
36 
37 #ifdef	__cplusplus
38 extern "C" {
39 #endif
40 
41 #ifndef	NULL
42 #define	NULL    0
43 #endif
44 
45 #define	offsetof(s, m)  (size_t)(&(((s *)0)->m))
46 
47 #ifdef	__cplusplus
48 }
49 #endif
50 
51 #endif /* _SA_STDDEF_H */
52