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3373 gcc >= 4.5 concerns about offsetof()


   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 */


   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 */