/*
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */

#ifndef __STDDEF_H
#define __STDDEF_H

#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void*)0)
#endif
#endif
#ifndef offsetof
#define offsetof(ty,mem) ((size_t) &(((ty *)0)->mem))
#endif

typedef long ptrdiff_t;
#ifndef _SIZE_T
#define _SIZE_T
typedef unsigned long size_t;
#endif
#ifndef _WCHAR_T
#define _WCHAR_T
typedef unsigned short wchar_t;
#endif

#endif /* __STDDEF_H */