Leaked source code of windows server 2003
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/***
*varargs.h - XENIX style macros for variable argument functions** Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.**Purpose:* This file defines XENIX style macros for accessing arguments of a* function which takes a variable number of arguments.* [System V]** [Public]**Revision History:* 08-22-88 GJF Modified to also work for the 386 (small model only)* 05-03-89 JCR Added _INTERNAL_IFSTRIP for relinc usage* 08-15-89 GJF Cleanup, now specific to OS/2 2.0 (i.e., 386 flat model)* 10-30-89 GJF Fixed copyright* 11-02-89 JCR Changed "DLL" to "_DLL"* 01-05-90 JCR Added NULL definition* 03-02-90 GJF Added #ifndef _INC_VARARGS stuff. Also, removed some* (now) useless preprocessor directives.* 05-29-90 GJF Replaced sizeof() with _INTSIZEOF() and revised the* va_arg() macro (fixes PTM 60)* 05-31-90 GJF Revised va_end() macro (propagated 5-25-90 change to* crt7 version by WAJ)* 01-24-91 JCR Generate an error on ANSI compilations* 08-20-91 JCR C++ and ANSI naming* 11-01-91 GDP MIPS Compiler support* 10-16-92 SKS Replaced "#ifdef i386" with "#ifdef _M_IX86".* 11-03-92 GJF Fixed several conditionals, dropped _DOSX32_ support.* 01-09-93 SRW Remove usage of MIPS and ALPHA to conform to ANSI* Use _MIPS_ and _ALPHA_ instead.* 10-04-93 SRW Fix ifdefs for MIPS and ALPHA to only check for _M_?????? defines* 10-13-93 GJF Merged NT and Cuda versions.* 04-05-94 SKS Add prototype of __builtin_va_start for ALPHA* 10-02-94 BWT PPC merge* 11-03-94 GJF Ensure 8 byte alignment.* 02-11-95 CFW Add _CRTBLD to avoid users getting wrong headers.* 02-14-95 CFW Clean up Mac merge.* 12-14-95 JWM Add "#pragma once".* 02-24-97 GJF Detab-ed.* 10-07-97 RDL Added IA64.* 11-07-97 RDL Soft23 varargs.* 05-17-99 PML Remove all Macintosh support.* 10-25-99 PML Fix IA64 _APALIGN macro (VS7#51838).* 10-25-99 PML Add support for _M_CEE (VS7#54572).* 01-20-00 PML Remove __epcg__.* 03-26-01 GB Added va_args for AMD64* 05-17-00 PML Use __alignof in _APALIGN macro for IA64.* 03-26-01 GB Added va_args for AMD64* 07-15-01 PML Remove all ALPHA, MIPS, and PPC code*****/
#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
#pragma once
#endif
#ifndef _INC_VARARGS
#define _INC_VARARGS
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifndef _CRTBLD
/* This version of the header files is NOT for user programs.
* It is intended for use when building the C runtimes ONLY. * The version intended for public use will not have this message. */#error ERROR: Use of C runtime library internal header file.
#endif /* _CRTBLD */
#ifdef _MSC_VER
/*
* Currently, all MS C compilers for Win32 platforms default to 8 byte * alignment. */#pragma pack(push,8)
#endif /* _MSC_VER */
#ifdef __cplusplus
extern "C" {#endif
#if __STDC__
#error varargs.h incompatible with ANSI (use stdarg.h)
#endif
#if !defined(_W64)
#if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 /*IFSTRIP=IGN*/
#define _W64 __w64
#else
#define _W64
#endif
#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 _VA_LIST_DEFINED
typedef char *va_list;
#define _VA_LIST_DEFINED
#endif
#if defined(_M_CEE)
#error varargs.h not supported when targetting _M_CEE (use stdarg.h)
#elif defined(_M_IX86)
/*
* define a macro to compute the size of a type, variable or expression, * rounded up to the nearest multiple of sizeof(int). This number is its * size as function argument (Intel architecture). Note that the macro * depends on sizeof(int) being a power of 2! */#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define va_dcl va_list va_alist;
#define va_start(ap) ap = (va_list)&va_alist
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define va_end(ap) ap = (va_list)0
#elif defined(_M_IA64)
#ifndef _VA_LIST
#define _VA_LIST char*
#endif
typedef _VA_LIST va_list;
#define _VA_STRUCT_ALIGN 16
#define _VA_ALIGN 8
#define _ALIGNOF(ap) ((((ap)+_VA_STRUCT_ALIGN - 1) & ~(_VA_STRUCT_ALIGN -1)) \
- (ap))#define _APALIGN(t,ap) (__alignof(t) > 8 ? _ALIGNOF((uintptr_t) ap) : 0)
#define _SLOTSIZEOF(t) ( (sizeof(t) + _VA_ALIGN - 1) & ~(_VA_ALIGN - 1) )
#define va_dcl __int64 va_alist;
#define va_start(ap) ( ap = (va_list)&va_alist )
#define va_arg(ap,t) (*(t *)((ap += _SLOTSIZEOF(t)+ _APALIGN(t,ap)) \
-_SLOTSIZEOF(t)))
#define va_end(ap) ( ap = (va_list)0 )
#elif defined(_M_AMD64)
extern void __cdecl __va_start(va_list *, ...);
#define va_dcl va_list va_alist;
#define va_start(ap, x) ( __va_start(&ap, x) )
#define va_arg(ap, t) \
( ( sizeof(t) > sizeof(__int64) || ( sizeof(t) & (sizeof(t) - 1) ) != 0 ) \ ? **(t **)( ( ap += sizeof(__int64) ) - sizeof(__int64) ) \ : *(t *)( ( ap += sizeof(__int64) ) - sizeof(__int64) ) )#define va_end(ap) ( ap = (va_list)0 )
#else
/* A guess at the proper definitions for other platforms */
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define va_dcl va_list va_alist;
#define va_start(ap) ap = (va_list)&va_alist
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define va_end(ap) ap = (va_list)0
#endif
#ifdef __cplusplus
}#endif
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
#endif /* _INC_VARARGS */
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