1*c9b8f0a2Skettenis /* $OpenBSD: stddef.h,v 1.14 2017/01/06 14:36:50 kettenis Exp $ */ 2df930be7Sderaadt /* $NetBSD: stddef.h,v 1.4 1994/10/26 00:56:26 cgd Exp $ */ 3df930be7Sderaadt 4df930be7Sderaadt /*- 5df930be7Sderaadt * Copyright (c) 1990 The Regents of the University of California. 6df930be7Sderaadt * All rights reserved. 7df930be7Sderaadt * 8df930be7Sderaadt * Redistribution and use in source and binary forms, with or without 9df930be7Sderaadt * modification, are permitted provided that the following conditions 10df930be7Sderaadt * are met: 11df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright 12df930be7Sderaadt * notice, this list of conditions and the following disclaimer. 13df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright 14df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the 15df930be7Sderaadt * documentation and/or other materials provided with the distribution. 16e33d3bd3Smillert * 3. Neither the name of the University nor the names of its contributors 17df930be7Sderaadt * may be used to endorse or promote products derived from this software 18df930be7Sderaadt * without specific prior written permission. 19df930be7Sderaadt * 20df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30df930be7Sderaadt * SUCH DAMAGE. 31df930be7Sderaadt * 32df930be7Sderaadt * @(#)stddef.h 5.5 (Berkeley) 4/3/91 33df930be7Sderaadt */ 34df930be7Sderaadt 35df930be7Sderaadt #ifndef _STDDEF_H_ 36df930be7Sderaadt #define _STDDEF_H_ 37df930be7Sderaadt 38c916d948Smillert #include <sys/cdefs.h> 396ecde746Smillert #include <sys/_null.h> 40c916d948Smillert #include <sys/_types.h> 41df930be7Sderaadt 42c916d948Smillert #ifndef _PTRDIFF_T_DEFINED_ 43c916d948Smillert #define _PTRDIFF_T_DEFINED_ 44c916d948Smillert typedef __ptrdiff_t ptrdiff_t; 45df930be7Sderaadt #endif 46df930be7Sderaadt 47c916d948Smillert #ifndef _SIZE_T_DEFINED_ 48c916d948Smillert #define _SIZE_T_DEFINED_ 49c916d948Smillert typedef __size_t size_t; 50c916d948Smillert #endif 51c916d948Smillert 52c8fdc41eSespie /* in C++, wchar_t is a built-in type */ 53c916d948Smillert #if !defined(_WCHAR_T_DEFINED_) && !defined(__cplusplus) 54c916d948Smillert #define _WCHAR_T_DEFINED_ 55c916d948Smillert typedef __wchar_t wchar_t; 56c8fdc41eSespie #endif 57df930be7Sderaadt 58c916d948Smillert #ifndef _WINT_T_DEFINED_ 59c916d948Smillert #define _WINT_T_DEFINED_ 60c916d948Smillert typedef __wint_t wint_t; 61bc92a556Sespie #endif 62bc92a556Sespie 63c916d948Smillert #ifndef _MBSTATE_T_DEFINED_ 64c916d948Smillert #define _MBSTATE_T_DEFINED_ 65c916d948Smillert typedef __mbstate_t mbstate_t; 66561d433dSespie #endif 67561d433dSespie 6836909e64Sjsg #if __GNUC_PREREQ__(4, 0) 6936909e64Sjsg #define offsetof(type, member) __builtin_offsetof(type, member) 7036909e64Sjsg #else 71df930be7Sderaadt #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 7236909e64Sjsg #endif 73df930be7Sderaadt 74*c9b8f0a2Skettenis #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103 75*c9b8f0a2Skettenis #ifndef __CLANG_MAX_ALIGN_T_DEFINED 76*c9b8f0a2Skettenis #define __CLANG_MAX_ALIGN_T_DEFINED 77*c9b8f0a2Skettenis typedef struct { 78*c9b8f0a2Skettenis long long __max_align_ll __aligned(__alignof__(long long)); 79*c9b8f0a2Skettenis long double __max_align_ld __aligned(__alignof__(long double)); 80*c9b8f0a2Skettenis } max_align_t; 81*c9b8f0a2Skettenis #endif 82*c9b8f0a2Skettenis #endif 83*c9b8f0a2Skettenis 84df930be7Sderaadt #endif /* _STDDEF_H_ */ 85