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Annotation of src/include/stddef.h, Revision 1.14

1.14    ! kettenis    1: /*     $OpenBSD: stddef.h,v 1.13 2016/09/09 18:12:37 millert Exp $     */
1.1       deraadt     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.
1.6       millert    16:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    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:
1.9       millert    38: #include <sys/cdefs.h>
1.13      millert    39: #include <sys/_null.h>
1.9       millert    40: #include <sys/_types.h>
1.1       deraadt    41:
1.9       millert    42: #ifndef _PTRDIFF_T_DEFINED_
                     43: #define _PTRDIFF_T_DEFINED_
                     44: typedef        __ptrdiff_t     ptrdiff_t;
                     45: #endif
1.1       deraadt    46:
1.9       millert    47: #ifndef        _SIZE_T_DEFINED_
                     48: #define        _SIZE_T_DEFINED_
                     49: typedef        __size_t        size_t;
1.1       deraadt    50: #endif
                     51:
1.4       espie      52: /* in C++, wchar_t is a built-in type */
1.9       millert    53: #if !defined(_WCHAR_T_DEFINED_) && !defined(__cplusplus)
                     54: #define _WCHAR_T_DEFINED_
                     55: typedef        __wchar_t       wchar_t;
1.7       espie      56: #endif
                     57:
1.9       millert    58: #ifndef        _WINT_T_DEFINED_
                     59: #define        _WINT_T_DEFINED_
                     60: typedef        __wint_t        wint_t;
1.8       espie      61: #endif
                     62:
1.9       millert    63: #ifndef        _MBSTATE_T_DEFINED_
                     64: #define        _MBSTATE_T_DEFINED_
                     65: typedef        __mbstate_t     mbstate_t;
1.1       deraadt    66: #endif
                     67:
1.10      jsg        68: #if __GNUC_PREREQ__(4, 0)
                     69: #define        offsetof(type, member)  __builtin_offsetof(type, member)
                     70: #else
1.1       deraadt    71: #define        offsetof(type, member)  ((size_t)(&((type *)0)->member))
1.14    ! kettenis   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
1.10      jsg        82: #endif
1.1       deraadt    83:
                     84: #endif /* _STDDEF_H_ */