v4.0/src/TOOLS/BLD/INC/STDDEF.H

   1 /***
   2 *stddef.h - definitions/declarations for common constants, types, variables
   3 *
   4 *   Copyright (c) 1985-1988, Microsoft Corporation.  All rights reserved.
   5 *
   6 *Purpose:
   7 *   This file contains definitions and declarations for some commonly
   8 *   used constants, types, and variables.
   9 *   [ANSI]
  10 *
  11 *******************************************************************************/
  12
  13
  14 #ifndef NO_EXT_KEYS /* extensions enabled */
  15     #define _CDECL  cdecl
  16     #define _NEAR   near
  17 #else /* extensions not enabled */
  18     #define _CDECL
  19     #define _NEAR
  20 #endif /* NO_EXT_KEYS */
  21
  22
  23 /* define NULL pointer value */
  24
  25 #if (defined(M_I86SM) || defined(M_I86MM))
  26 #define  NULL    0
  27 #elif (defined(M_I86CM) || defined(M_I86LM) || defined(M_I86HM))
  28 #define  NULL    0L
  29 #endif
  30
  31
  32 /* declare reference to errno */
  33
  34 extern int _NEAR _CDECL errno;
  35
  36
  37 /* define the implementation dependent size types */
  38
  39 #ifndef _PTRDIFF_T_DEFINED
  40 typedef int ptrdiff_t;
  41 #define _PTRDIFF_T_DEFINED
  42 #endif
  43
  44 #ifndef _SIZE_T_DEFINED
  45 typedef unsigned int size_t;
  46 #define _SIZE_T_DEFINED
  47 #endif
  48