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      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 /*	Copyright (c) 1988 AT&T	*/
     23 /*	  All Rights Reserved  	*/
     24 
     25 
     26 /*
     27  * Copyright 1999-2003 Sun Microsystems, Inc.  All rights reserved.
     28  * Use is subject to license terms.
     29  */
     30 
     31 /*
     32  * An application should not include this header directly.  Instead it
     33  * should be included only through the inclusion of other Sun headers.
     34  *
     35  * The contents of this header is limited to identifiers specified in the
     36  * C Standard.  Any new identifiers specified in future amendments to the
     37  * C Standard must be placed in this header.  If these new identifiers
     38  * are required to also be in the C++ Standard "std" namespace, then for
     39  * anything other than macro definitions, corresponding "using" directives
     40  * must also be added to <stddef.h.h>.
     41  */
     42 
     43 #ifndef _ISO_STDDEF_ISO_H
     44 #define	_ISO_STDDEF_ISO_H
     45 
     46 #pragma ident	"%Z%%M%	%I%	%E% SMI" /* SVr4.0 1.5 */
     47 
     48 #include <sys/isa_defs.h>
     49 
     50 #ifdef	__cplusplus
     51 extern "C" {
     52 #endif
     53 
     54 #if __cplusplus >= 199711L
     55 namespace std {
     56 #endif
     57 
     58 #ifndef	NULL
     59 #if defined(_LP64)
     60 #define	NULL    0L
     61 #else
     62 #define	NULL    0
     63 #endif
     64 #endif
     65 
     66 #if !defined(_PTRDIFF_T) || __cplusplus >= 199711L
     67 #define	_PTRDIFF_T
     68 #if defined(_LP64) || defined(_I32LPx)
     69 typedef	long	ptrdiff_t;		/* pointer difference */
     70 #else
     71 typedef int	ptrdiff_t;		/* (historical version) */
     72 #endif
     73 #endif	/* !_PTRDIFF_T */
     74 
     75 #if !defined(_SIZE_T) || __cplusplus >= 199711L
     76 #define	_SIZE_T
     77 #if defined(_LP64) || defined(_I32LPx)
     78 typedef unsigned long	size_t;		/* size of something in bytes */
     79 #else
     80 typedef unsigned int	size_t;		/* (historical version) */
     81 #endif
     82 #endif	/* !_SIZE_T */
     83 
     84 #if __cplusplus >= 199711L
     85 }
     86 #endif /* end of namespace std */
     87 
     88 #if __cplusplus >= 199711L
     89 #define	offsetof(s, m)  (std::size_t)(&(((s *)0)->m))
     90 #else
     91 #define	offsetof(s, m)  (size_t)(&(((s *)0)->m))
     92 #endif
     93 
     94 #ifdef	__cplusplus
     95 }
     96 #endif
     97 
     98 #endif	/* _ISO_STDDEF_ISO_H */
     99