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/*** |
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*vadefs.h - defines helper macros for stdarg.h |
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* |
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* Copyright (c) Microsoft Corporation. All rights reserved. |
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* |
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*Purpose: |
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* This is a helper file for stdarg.h |
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* |
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* [Public] |
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* |
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****/ |
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#if _MSC_VER > 1000 |
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#pragma once |
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#endif |
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#ifndef _INC_VADEFS |
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#define _INC_VADEFS |
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#if !defined(_WIN32) |
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#error ERROR: Only Win32 target supported! |
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#endif |
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#ifdef _MSC_VER |
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/* |
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* Currently, all MS C compilers for Win32 platforms default to 8 byte |
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* alignment. |
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*/ |
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#undef _CRT_PACKING |
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#define _CRT_PACKING 8 |
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#pragma pack(push,_CRT_PACKING) |
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#endif /* _MSC_VER */ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#if !defined(_W64) |
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#if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 |
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#define _W64 __w64 |
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#else |
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#define _W64 |
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#endif |
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#endif |
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#ifndef _UINTPTR_T_DEFINED |
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#ifdef _WIN64 |
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typedef unsigned __int64 uintptr_t; |
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#else |
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typedef _W64 unsigned int uintptr_t; |
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#endif |
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#define _UINTPTR_T_DEFINED |
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#endif |
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#ifndef _VA_LIST_DEFINED |
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#ifdef _M_CEE_PURE |
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typedef System::ArgIterator va_list; |
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#else |
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typedef char * va_list; |
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#endif /* _M_CEE_PURE */ |
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#define _VA_LIST_DEFINED |
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#endif |
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#ifdef __cplusplus |
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#define _ADDRESSOF(v) ( &reinterpret_cast<const char &>(v) ) |
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#else |
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#define _ADDRESSOF(v) ( &(v) ) |
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#endif |
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#if defined(_M_IA64) && !defined(_M_CEE_PURE) |
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#define _VA_ALIGN 8 |
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#define _SLOTSIZEOF(t) ( (sizeof(t) + _VA_ALIGN - 1) & ~(_VA_ALIGN - 1) ) |
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#define _VA_STRUCT_ALIGN 16 |
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#define _ALIGNOF(ap) ((((ap)+_VA_STRUCT_ALIGN - 1) & ~(_VA_STRUCT_ALIGN -1)) \ |
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- (ap)) |
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#define _APALIGN(t,ap) (__alignof(t) > 8 ? _ALIGNOF((uintptr_t) ap) : 0) |
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#else |
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#define _SLOTSIZEOF(t) (sizeof(t)) |
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#define _APALIGN(t,ap) (__alignof(t)) |
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#endif |
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#if defined(_M_CEE) |
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extern void __cdecl __va_start(va_list*, ...); |
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extern void * __cdecl __va_arg(va_list*, ...); |
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extern void __cdecl __va_end(va_list*); |
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#define _crt_va_start(ap,v) ( __va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), \ |
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__alignof(v), _ADDRESSOF(v)) ) |
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#define _crt_va_end(ap) ( ap = (va_list)0 ) |
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#elif defined(_M_IA64) |
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#ifdef __cplusplus |
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extern void __cdecl __va_start(va_list*, ...); |
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#define _crt_va_start(ap,v) ( __va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), \ |
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_ADDRESSOF(v)) ) |
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#else |
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#define _crt_va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _SLOTSIZEOF(v) ) |
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#endif |
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#define _crt_va_arg(ap,t) (*(t *)((ap += _SLOTSIZEOF(t)+ _APALIGN(t,ap)) \ |
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-_SLOTSIZEOF(t))) |
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#define _crt_va_end(ap) ( ap = (va_list)0 ) |
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#elif defined(_M_AMD64) |
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extern void __cdecl __va_start(va_list *, ...); |
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#define _crt_va_start(ap, x) ( __va_start(&ap, x) ) |
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#define _crt_va_arg(ap, t) \ |
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( ( sizeof(t) > sizeof(__int64) || ( sizeof(t) & (sizeof(t) - 1) ) != 0 ) \ |
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? **(t **)( ( ap += sizeof(__int64) ) - sizeof(__int64) ) \ |
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: *(t *)( ( ap += sizeof(__int64) ) - sizeof(__int64) ) ) |
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#define _crt_va_end(ap) ( ap = (va_list)0 ) |
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#else |
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/* A guess at the proper definitions for other platforms */ |
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#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) ) |
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#define _crt_va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _INTSIZEOF(v) ) |
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#define _crt_va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) ) |
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#define _crt_va_end(ap) ( ap = (va_list)0 ) |
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#endif |
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#ifdef __cplusplus |
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} |
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#endif |
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#ifdef _MSC_VER |
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#pragma pack(pop) |
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#endif /* _MSC_VER */ |
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#endif /* _INC_VADEFS */ |
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