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_ 44 typedef __ptrdiff_t ptrdiff_t; 45 #endif 46 47 #ifndef _SIZE_T_DEFINED_ 48 #define _SIZE_T_DEFINED_ 49 typedef __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_ 55 typedef __wchar_t wchar_t; 56 #endif 57 58 #ifndef _WINT_T_DEFINED_ 59 #define _WINT_T_DEFINED_ 60 typedef __wint_t wint_t; 61 #endif 62 63 #ifndef _MBSTATE_T_DEFINED_ 64 #define _MBSTATE_T_DEFINED_ 65 typedef __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 77 typedef 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