gonzui: tkernel_2/include/stddef.h

    1: /*
    2:  *----------------------------------------------------------------------
    3:  *    T-Kernel 2.0 Software Package
    4:  *
    5:  *    Copyright 2011 by Ken Sakamura.
    6:  *    This software is distributed under the latest version of T-License 2.x.
    7:  *----------------------------------------------------------------------
    8:  *
    9:  *    Released by T-Engine Forum(http://www.t-engine.org/) at 2011/05/17.
   10:  *    Modified by TRON Forum(http://www.tron.org/) at 2015/06/01.
   11:  *
   12:  *----------------------------------------------------------------------
   13:  */
   14: 
   15: /*
   16:  *      @(#)stddef.h
   17:  *
   18:  *      C language: common definitions
   19:  */
   20: 
   21: #ifndef __STDDEF_H__
   22: #define __STDDEF_H__
   23: 
   24: #include <stdtype.h>
   25: 
   26: #ifdef __cplusplus
   27: extern "C" {
   28: #endif
   29: 
   30: typedef int             ptrdiff_t;
   31: 
   32: #ifdef  __size_t
   33: typedef __size_t        size_t;
   34: #undef  __size_t
   35: #endif
   36: 
   37: #ifdef  __wchar_t
   38: typedef __wchar_t       wchar_t;
   39: #undef  __wchar_t
   40: #endif
   41: 
   42: #define offsetof(type, member)  ( (size_t)(&((type *)0)->member) )
   43: #define NULL    0
   44: 
   45: #ifdef __cplusplus
   46: }
   47: #endif
   48: #endif /* __STDDEF_H__ */