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/* $OpenBSD: stddef.h,v 1.12 2011/07/03 18:51:01 jsg Exp $ */
/* $NetBSD: stddef.h,v 1.4 1994/10/26 00:56:26 cgd Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)stddef.h 5.5 (Berkeley) 4/3/91
*/
#ifndef _STDDEF_H_
#define _STDDEF_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#ifndef _PTRDIFF_T_DEFINED_
#define _PTRDIFF_T_DEFINED_
typedef __ptrdiff_t ptrdiff_t;
#endif
#ifndef _SIZE_T_DEFINED_
#define _SIZE_T_DEFINED_
typedef __size_t size_t;
#endif
/* in C++, wchar_t is a built-in type */
#if !defined(_WCHAR_T_DEFINED_) && !defined(__cplusplus)
#define _WCHAR_T_DEFINED_
typedef __wchar_t wchar_t;
#endif
#ifndef _WINT_T_DEFINED_
#define _WINT_T_DEFINED_
typedef __wint_t wint_t;
#endif
#ifndef _MBSTATE_T_DEFINED_
#define _MBSTATE_T_DEFINED_
typedef __mbstate_t mbstate_t;
#endif
#ifndef NULL
#ifdef __GNUG__
#define NULL __null
#elif defined(__cplusplus)
#define NULL 0L
#else
#define NULL ((void *)0)
#endif
#endif
#if __GNUC_PREREQ__(4, 0)
#define offsetof(type, member) __builtin_offsetof(type, member)
#else
#define offsetof(type, member) ((size_t)(&((type *)0)->member))
#endif
#endif /* _STDDEF_H_ */
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