/*  * 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_Ttypedef unsigned long size_t;#endif#ifndef _WCHAR_T#define _WCHAR_Ttypedef unsigned short wchar_t;#endif #endif /* __STDDEF_H */