mirror of
https://github.com/reactos/reactos.git
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98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the w64 mingw-runtime package.
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* No warranty is given; refer to the file DISCLAIMER within this package.
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*/
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#ifndef _INC_VADEFS
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#define _INC_VADEFS
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#ifndef _WIN32
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#error Only Win32 target is supported!
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#endif
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#include <crtdefs.h>
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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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#ifdef __cplusplus
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extern "C" {
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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(__ia64__)
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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)) - (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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#define _INTSIZEOF(n) ((sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1))
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#if defined(__GNUC__) || defined(__clang__)
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#define _crt_va_start(v,l) __builtin_va_start(v,l)
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#define _crt_va_arg(v,l) __builtin_va_arg(v,l)
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#define _crt_va_end(v) __builtin_va_end(v)
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#define __va_copy(d,s) __builtin_va_copy(d,s)
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#elif defined(_MSC_VER)
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#if defined(_M_IX86)
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#define _crt_va_start(v,l) ((void)((v) = (va_list)_ADDRESSOF(l) + _INTSIZEOF(l)))
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#define _crt_va_arg(v,l) (*(l *)(((v) += _INTSIZEOF(l)) - _INTSIZEOF(l)))
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#define _crt_va_end(v) ((void)((v) = (va_list)0))
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#define __va_copy(d,s) ((void)((d) = (s)))
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#elif defined(_M_AMD64)
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#define _PTRSIZEOF(n) ((sizeof(n) + sizeof(void*) - 1) & ~(sizeof(void*) - 1))
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#define _ISSTRUCT(t) ((sizeof(t) > sizeof(void*)) || (sizeof(t) & (sizeof(t)-1)) != 0)
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#define _crt_va_start(v,l) ((void)((v) = (va_list)_ADDRESSOF(l) + _PTRSIZEOF(l)))
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#define _crt_va_arg(v,t) (_ISSTRUCT(t) ? \
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(**(t**)(((v) += sizeof(void*)) - sizeof(void*))) : \
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(*(t*)(((v) += sizeof(void*)) - sizeof(void*))))
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#define _crt_va_end(v) ((void)((v) = (va_list)0))
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#define __va_copy(d,s) ((void)((d) = (s)))
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#elif defined(_M_ARM)
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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), _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)) - _SLOTSIZEOF(t)))
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#define _crt_va_end(ap) ( ap = (va_list)0 )
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#define __va_copy(d,s) ((void)((d) = (s)))
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#elif defined(_M_ARM64)
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extern void __cdecl __va_start(va_list*, ...);
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#define _crt_va_start(ap,v) ((void)(__va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), __alignof(v), _ADDRESSOF(v))))
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#define _crt_va_arg(ap, t) \
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((sizeof(t) > (2 * sizeof(__int64))) \
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? **(t**)((ap += sizeof(__int64)) - sizeof(__int64)) \
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: *(t*)((ap += _SLOTSIZEOF(t) + _APALIGN(t,ap)) - _SLOTSIZEOF(t)))
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#define _crt_va_end(ap) ((void)(ap = (va_list)0))
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#define __va_copy(d,s) ((void)((d) = (s)))
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#else //if defined(_M_IA64) || defined(_M_CEE)
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#error Please implement me
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#endif
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#endif
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#if !defined(va_copy) && (!defined(__STRICT_ANSI__) || __STDC_VERSION__ + 0 >= 199900L)
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#define va_copy(d,s) __va_copy((d),(s))
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#endif
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#ifdef __cplusplus
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}
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#endif
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#pragma pack(pop)
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#endif
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