windows-nt/Source/XPSP1/NT/public/sdk/inc/crt/stddef.h
2020-09-26 16:20:57 +08:00

144 lines
2.5 KiB
C

/***
*stddef.h - definitions/declarations for common constants, types, variables
*
* Copyright (c) 1985-2000, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file contains definitions and declarations for some commonly
* used constants, types, and variables.
* [ANSI]
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifndef _INC_STDDEF
#define _INC_STDDEF
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(_W64)
#if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
#define _W64 __w64
#else
#define _W64
#endif
#endif
/* Define _CRTIMP */
#ifndef _CRTIMP
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else /* ndef _DLL */
#define _CRTIMP
#endif /* _DLL */
#endif /* _CRTIMP */
/* Define __cdecl for non-Microsoft compilers */
#if ( !defined(_MSC_VER) && !defined(__cdecl) )
#define __cdecl
#endif
/* Define NULL pointer value */
#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void *)0)
#endif
#endif
/* Declare reference to errno */
#if defined(_MT) || defined(_DLL)
_CRTIMP extern int * __cdecl _errno(void);
#define errno (*_errno())
#else /* ndef _MT && ndef _DLL */
_CRTIMP extern int errno;
#endif /* _MT || _DLL */
/* Define the implementation dependent size types */
#ifndef _INTPTR_T_DEFINED
#ifdef _WIN64
typedef __int64 intptr_t;
#else
typedef _W64 int intptr_t;
#endif
#define _INTPTR_T_DEFINED
#endif
#ifndef _UINTPTR_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 uintptr_t;
#else
typedef _W64 unsigned int uintptr_t;
#endif
#define _UINTPTR_T_DEFINED
#endif
#ifndef _PTRDIFF_T_DEFINED
#ifdef _WIN64
typedef __int64 ptrdiff_t;
#else
typedef _W64 int ptrdiff_t;
#endif
#define _PTRDIFF_T_DEFINED
#endif
#ifndef _SIZE_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 size_t;
#else
typedef _W64 unsigned int size_t;
#endif
#define _SIZE_T_DEFINED
#endif
#if !defined(_WCHAR_T_DEFINED) && !defined(_NATIVE_WCHAR_T_DEFINED)
typedef unsigned short wchar_t;
#define _WCHAR_T_DEFINED
#endif
/* Define offsetof macro */
#ifdef _WIN64
#define offsetof(s,m) (size_t)( (ptrdiff_t)&(((s *)0)->m) )
#else
#define offsetof(s,m) (size_t)&(((s *)0)->m)
#endif
#ifdef _MT
_CRTIMP extern unsigned long __cdecl __threadid(void);
#define _threadid (__threadid())
_CRTIMP extern uintptr_t __cdecl __threadhandle(void);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _INC_STDDEF */