posix/include/stddef.h

   1 /* $Id: stddef.h,v 1.2 2002/02/20 09:17:54 hyperion Exp $
   2  */
   3 /*
   4  * stddef.h
   5  *
   6  * standard type definitions. Conforming to the Single UNIX(r) Specification
   7  * Version 2, System Interface & Headers Issue 5
   8  *
   9  * This file is part of the ReactOS Operating System.
  10  *
  11  * Contributors:
  12  *  Created by KJK::Hyperion <noog@libero.it>
  13  *
  14  *  THIS SOFTWARE IS NOT COPYRIGHTED
  15  *
  16  *  This source code is offered for use in the public domain. You may
  17  *  use, modify or distribute it freely.
  18  *
  19  *  This code is distributed in the hope that it will be useful but
  20  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  21  *  DISCLAMED. This includes but is not limited to warranties of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  23  *
  24  */
  25 #ifndef __STDDEF_H_INCLUDED__
  26 #define __STDDEF_H_INCLUDED__
  27
  28 /* INCLUDES */
  29 #include <sys/types.h>
  30
  31 /* OBJECTS */
  32
  33 /* TYPES */
  34 typedef signed long int ptrdiff_t;
  35 typedef unsigned short int wchar_t;
  36
  37 /* CONSTANTS */
  38 #ifndef NULL
  39 #define NULL ((void *)(0)) /* Null pointer constant. */
  40 #endif
  41
  42 /* PROTOTYPES */
  43
  44 /* MACROS */
  45 #define offsetof(t,m) ((size_t) &((t *)0)->m)
  46
  47 #endif /* __STDDEF_H_INCLUDED__ */
  48
  49 /* EOF */
  50