include/stddef.h

   1 /*-
   2  * Copyright (c) 1990, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)stddef.h    8.1 (Berkeley) 6/2/93
  30  *
  31  * $FreeBSD: src/include/stddef.h,v 1.2.8.4 2002/08/07 15:49:32 imp Exp $
  32  */
  33
  34 #ifndef _STDDEF_H_
  35 #define _STDDEF_H_
  36
  37 #include <sys/cdefs.h>
  38 #include <sys/_null.h>
  39 #include <machine/stdint.h>
  40 #ifndef __cplusplus
  41 #include <machine/wchar.h>              /* for ___wchar_t */
  42 #endif
  43
  44 #ifndef _SIZE_T_DECLARED
  45 #define _SIZE_T_DECLARED
  46 typedef __size_t        size_t;         /* open group, _GCC_SIZE_T OK */
  47 #endif
  48
  49 #ifndef _PTRDIFF_T_DECLARED
  50 #define _PTRDIFF_T_DECLARED
  51 typedef __ptrdiff_t     ptrdiff_t;      /* open group, _GCC_PTRDIFF_T OK */
  52 #endif
  53
  54 #ifndef __cplusplus
  55 #ifndef _WCHAR_T_DECLARED
  56 #define _WCHAR_T_DECLARED
  57 typedef ___wchar_t      wchar_t;        /* open group, _GCC_WCHAR_T OK */
  58 #endif
  59 #endif
  60
  61 #define offsetof(type, member)  __offsetof(type, member)
  62
  63 #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) || \
  64     (defined(__cplusplus) && __cplusplus >= 201103L))
  65 #ifndef _MAX_ALIGN_T_DECLARED
  66 #define _MAX_ALIGN_T_DECLARED
  67 typedef struct {
  68         long long __max_align_nonce1 __aligned(__alignof(long long));
  69         long double __max_align_nonce2 __aligned(__alignof(long double));
  70 } max_align_t;
  71 #endif
  72 #endif
  73
  74 #endif /* _STDDEF_H_ */