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_ */ 85