155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
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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_arg(ap,t) ( *(t *)__va_arg(&ap, _SLOTSIZEOF(t), \
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_APALIGN(t,ap), (t *)0) )
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#define _crt_va_end(ap) ( __va_end(&ap) )
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#elif defined(_M_IX86)
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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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#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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