#ifndef __STDDEF
#define __STDDEF

/* $Id: stddef.h,v 1.1.1.2 2002/04/21 13:25:12 peter Exp $ */

#define NULL 0L
#define offsetof(ty,mem) ((size_t)((char*)&((ty*)0)->mem - (char*)0))

#ifndef _PTRDIFF_T
#define _PTRDIFF_T
typedef signed long ptrdiff_t;
#endif

#if !defined(_SIZE_T) && !defined(_SIZE_T_)
#define _SIZE_T
#define _SIZE_T_
typedef unsigned long size_t;
#endif

#if !defined(_WCHAR_T) && !defined(_WCHAR_T_)
#define _WCHAR_T
#define _WCHAR_T_
#if   (_WCHAR_T_SIZE + 0) == 1
typedef unsigned char wchar_t;
#elif (_WCHAR_T_SIZE + 0) == 2
typedef unsigned short wchar_t;
#elif (_WCHAR_T_SIZE + 0) == 4
typedef unsigned int wchar_t;
#else
typedef unsigned short wchar_t;
#endif
#endif

#endif /* __STDDEF */
