9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #ifndef _SA_STDDEF_H
27 #define _SA_STDDEF_H
28
29 #pragma ident "%Z%%M% %I% %E% SMI"
30
31 /*
32 * Exported interfaces for standalone's subset of libc's <stddef.h>.
33 * All standalone code *must* use this header rather than libc's.
34 */
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 #ifndef NULL
41 #define NULL 0
42 #endif
43
44 #ifndef offsetof
45 #define offsetof(s, m) (size_t)(&(((s *)0)->m))
46 #endif
47
48 #ifdef __cplusplus
49 }
50 #endif
51
52 #endif /* _SA_STDDEF_H */
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9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #ifndef _SA_STDDEF_H
27 #define _SA_STDDEF_H
28
29 /*
30 * Exported interfaces for standalone's subset of libc's <stddef.h>.
31 * All standalone code *must* use this header rather than libc's.
32 */
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 #ifndef NULL
39 #define NULL 0
40 #endif
41
42 #ifndef offsetof
43 #if defined(__GNUC__)
44 #define offsetof(s, m) __builtin_offsetof(s, m)
45 #else
46 #define offsetof(s, m) ((size_t)(&(((s *)0)->m)))
47 #endif
48 #endif
49
50 #ifdef __cplusplus
51 }
52 #endif
53
54 #endif /* _SA_STDDEF_H */
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