You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
1.4 KiB
80 lines
1.4 KiB
/***
|
|
*stddef.h - definitions/declarations for common constants, types, variables
|
|
*
|
|
* Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* This file contains definitions and declarations for some commonly
|
|
* used constants, types, and variables.
|
|
* [ANSI]
|
|
*
|
|
****/
|
|
|
|
#ifndef _INC_STDDEF
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if (_MSC_VER <= 600)
|
|
#define __cdecl _cdecl
|
|
#define __far _far
|
|
#define __near _near
|
|
#endif
|
|
|
|
/* define the NULL pointer value and the offsetof() macro */
|
|
|
|
#ifndef NULL
|
|
#ifdef __cplusplus
|
|
#define NULL 0
|
|
#else
|
|
#define NULL ((void *)0)
|
|
#endif
|
|
#endif
|
|
|
|
|
|
/* offset of field m in a struct s */
|
|
|
|
#define offsetof(s,m) (size_t)( (char *)&(((s *)0)->m) - (char *)0 )
|
|
|
|
|
|
/* errno declaration */
|
|
|
|
#ifdef _MT
|
|
extern int __far * __cdecl __far volatile _errno(void);
|
|
#define errno (*_errno())
|
|
#else
|
|
extern int __near __cdecl volatile errno;
|
|
#endif
|
|
|
|
|
|
/* define the implementation dependent size types */
|
|
|
|
#ifndef _PTRDIFF_T_DEFINED
|
|
typedef int ptrdiff_t;
|
|
#define _PTRDIFF_T_DEFINED
|
|
#endif
|
|
|
|
#ifndef _SIZE_T_DEFINED
|
|
typedef unsigned int size_t;
|
|
#define _SIZE_T_DEFINED
|
|
#endif
|
|
|
|
#ifndef _WCHAR_T_DEFINED
|
|
typedef unsigned short wchar_t;
|
|
#define _WCHAR_T_DEFINED
|
|
#endif
|
|
|
|
|
|
#ifdef _MT
|
|
/* define pointer to thread id value */
|
|
|
|
extern int __far *_threadid;
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#define _INC_STDDEF
|
|
#endif
|