1/* $OpenBSD: stddef.h,v 1.14 2017/01/06 14:36:50 kettenis Exp $ */
2/* $NetBSD: stddef.h,v 1.4 1994/10/26 00:56:26 cgd Exp $ */
3
4/*-
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)stddef.h 5.5 (Berkeley) 4/3/91
33 */
34
35#ifndef _STDDEF_H_
36#define _STDDEF_H_
37
38#include <sys/cdefs.h>
39#include <sys/_null.h>
40#include <sys/_types.h>
41
42#ifndef _PTRDIFF_T_DEFINED_
43#define _PTRDIFF_T_DEFINED_
44typedef __ptrdiff_t ptrdiff_t;
45#endif
46
47#ifndef _SIZE_T_DEFINED_
48#define _SIZE_T_DEFINED_
49typedef __size_t size_t;
50#endif
51
52/* in C++, wchar_t is a built-in type */
53#if !defined(_WCHAR_T_DEFINED_) && !defined(__cplusplus)
54#define _WCHAR_T_DEFINED_
55typedef __wchar_t wchar_t;
56#endif
57
58#ifndef _WINT_T_DEFINED_
59#define _WINT_T_DEFINED_
60typedef __wint_t wint_t;
61#endif
62
63#ifndef _MBSTATE_T_DEFINED_
64#define _MBSTATE_T_DEFINED_
65typedef __mbstate_t mbstate_t;
66#endif
67
68#if __GNUC_PREREQ__(4, 0)
69#define offsetof(type, member) __builtin_offsetof(type, member)
70#else
71#define offsetof(type, member) ((size_t)(&((type *)0)->member))
72#endif
73
74#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103
75#ifndef __CLANG_MAX_ALIGN_T_DEFINED
76#define __CLANG_MAX_ALIGN_T_DEFINED
77typedef struct {
78 long long __max_align_ll __aligned(__alignof__(long long));
79 long double __max_align_ld __aligned(__alignof__(long double));
80} max_align_t;
81#endif
82#endif
83
84#endif /* _STDDEF_H_ */