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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)stddef.h    8.1 (Berkeley) 6/2/93
  34  *
  35  * $FreeBSD: src/include/stddef.h,v 1.2.8.4 2002/08/07 15:49:32 imp Exp $
  36  */
  37
  38 #ifndef _STDDEF_H_
  39 #define _STDDEF_H_
  40
  41 #include <sys/cdefs.h>
  42 #include <sys/_null.h>
  43 #ifndef _SYS_STDINT_H_
  44 #include <sys/stdint.h>                 /* __rune_t and friends */
  45 #endif
  46
  47 #ifndef _SIZE_T_DECLARED
  48 #define _SIZE_T_DECLARED
  49 typedef __size_t        size_t;         /* open group */
  50 #endif
  51
  52 #ifndef _PTRDIFF_T_DECLARED
  53 #define _PTRDIFF_T_DECLARED
  54 typedef __ptrdiff_t     ptrdiff_t;      /* open group */
  55 #endif
  56
  57 #if __BSD_VISIBLE
  58 #ifndef _RUNE_T_DECLARED
  59 #define _RUNE_T_DECLARED
  60 typedef __rune_t        rune_t;
  61 #endif
  62 #endif
  63
  64 #ifndef __cplusplus
  65 #ifndef _WCHAR_T_DECLARED
  66 #define _WCHAR_T_DECLARED
  67 typedef __wchar_t       wchar_t;        /* open group */
  68 #endif
  69 #endif
  70
  71 #define offsetof(type, member)  __offsetof(type, member)
  72
  73 #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) || \
  74     (defined(__cplusplus) && __cplusplus >= 201103L))
  75 typedef struct {
  76         long long __max_align_nonce1 __aligned(__alignof(long long));
  77         long double __max_align_nonce2 __aligned(__alignof(long double));
  78 } max_align_t;
  79 #endif
  80
  81 #endif /* _STDDEF_H_ */