xref: /illumos-gate/usr/src/head/iso/stddef_iso.h (revision 6401734d545a04c18f68b448202f9d9a77216bb9)
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  * Copyright 2014 PALO, Richard.
33  */
34 
35 /*
36  * An application should not include this header directly.  Instead it
37  * should be included only through the inclusion of other Sun headers.
38  *
39  * The contents of this header is limited to identifiers specified in the
40  * C Standard.  Any new identifiers specified in future amendments to the
41  * C Standard must be placed in this header.  If these new identifiers
42  * are required to also be in the C++ Standard "std" namespace, then for
43  * anything other than macro definitions, corresponding "using" directives
44  * must also be added to <stddef.h.h>.
45  */
46 
47 #ifndef _ISO_STDDEF_ISO_H
48 #define	_ISO_STDDEF_ISO_H
49 
50 #include <sys/isa_defs.h>
51 #include <sys/null.h>
52 
53 #ifdef	__cplusplus
54 extern "C" {
55 #endif
56 
57 #if __cplusplus >= 199711L
58 namespace std {
59 #endif
60 
61 #if !defined(_PTRDIFF_T) || __cplusplus >= 199711L
62 #define	_PTRDIFF_T
63 #if defined(_LP64) || defined(_I32LPx)
64 typedef	long	ptrdiff_t;		/* pointer difference */
65 #else
66 typedef int	ptrdiff_t;		/* (historical version) */
67 #endif
68 #endif	/* !_PTRDIFF_T */
69 
70 #if !defined(_SIZE_T) || __cplusplus >= 199711L
71 #define	_SIZE_T
72 #if defined(_LP64) || defined(_I32LPx)
73 typedef unsigned long	size_t;		/* size of something in bytes */
74 #else
75 typedef unsigned int	size_t;		/* (historical version) */
76 #endif
77 #endif	/* !_SIZE_T */
78 
79 #if __cplusplus >= 199711L
80 }
81 #endif /* end of namespace std */
82 
83 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
84 #define	offsetof(s, m) __builtin_offsetof(s, m)
85 #else
86 #if __cplusplus >= 199711L
87 #define	offsetof(s, m)  (std::size_t)(&(((s *)0)->m))
88 #else
89 #define	offsetof(s, m)  (size_t)(&(((s *)0)->m))
90 #endif
91 #endif	/* GNUC, etc. */
92 
93 #ifdef	__cplusplus
94 }
95 #endif
96 
97 #endif	/* _ISO_STDDEF_ISO_H */
98