singrdk/base/Windows/Inc/vadefs.h

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3.9 KiB
C
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2008-03-05 09:52:00 -05:00
/***
*vadefs.h - defines helper macros for stdarg.h
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
* This is a helper file for stdarg.h
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifndef _INC_VADEFS
#define _INC_VADEFS
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifdef _MSC_VER
/*
* Currently, all MS C compilers for Win32 platforms default to 8 byte
* alignment.
*/
#undef _CRT_PACKING
#define _CRT_PACKING 8
#pragma pack(push,_CRT_PACKING)
#endif /* _MSC_VER */
#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
#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
#ifdef _M_CEE_PURE
typedef System::ArgIterator va_list;
#else
typedef char * va_list;
#endif /* _M_CEE_PURE */
#define _VA_LIST_DEFINED
#endif
#ifdef __cplusplus
#define _ADDRESSOF(v) ( &reinterpret_cast<const char &>(v) )
#else
#define _ADDRESSOF(v) ( &(v) )
#endif
#if defined(_M_IA64) && !defined(_M_CEE_PURE)
#define _VA_ALIGN 8
#define _SLOTSIZEOF(t) ( (sizeof(t) + _VA_ALIGN - 1) & ~(_VA_ALIGN - 1) )
#define _VA_STRUCT_ALIGN 16
#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)
#else
#define _SLOTSIZEOF(t) (sizeof(t))
#define _APALIGN(t,ap) (__alignof(t))
#endif
#if defined(_M_CEE)
extern void __cdecl __va_start(va_list*, ...);
extern void * __cdecl __va_arg(va_list*, ...);
extern void __cdecl __va_end(va_list*);
#define _crt_va_start(ap,v) ( __va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), \
__alignof(v), _ADDRESSOF(v)) )
#define _crt_va_arg(ap,t) ( *(t *)__va_arg(&ap, _SLOTSIZEOF(t), \
_APALIGN(t,ap), (t *)0) )
#define _crt_va_end(ap) ( __va_end(&ap) )
#elif defined(_M_IX86)
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define _crt_va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _INTSIZEOF(v) )
#define _crt_va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define _crt_va_end(ap) ( ap = (va_list)0 )
#elif defined(_M_IA64)
#ifdef __cplusplus
extern void __cdecl __va_start(va_list*, ...);
#define _crt_va_start(ap,v) ( __va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), \
_ADDRESSOF(v)) )
#else
#define _crt_va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _SLOTSIZEOF(v) )
#endif
#define _crt_va_arg(ap,t) (*(t *)((ap += _SLOTSIZEOF(t)+ _APALIGN(t,ap)) \
-_SLOTSIZEOF(t)))
#define _crt_va_end(ap) ( ap = (va_list)0 )
#elif defined(_M_AMD64)
extern void __cdecl __va_start(va_list *, ...);
#define _crt_va_start(ap, x) ( __va_start(&ap, x) )
#define _crt_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 _crt_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 _crt_va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _INTSIZEOF(v) )
#define _crt_va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define _crt_va_end(ap) ( ap = (va_list)0 )
#endif
#ifdef __cplusplus
}
#endif
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
#endif /* _INC_VADEFS */