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      1 /**
      2  * This file has no copyright assigned and is placed in the Public Domain.
      3  * This file is part of the mingw-w64 runtime package.
      4  * No warranty is given; refer to the file DISCLAIMER.PD within this package.
      5  */
      6 #ifndef _INC_VADEFS
      7 #define _INC_VADEFS
      8 
      9 #include <_mingw.h>
     10 
     11 #ifndef __WIDL__
     12 #undef _CRT_PACKING
     13 #define _CRT_PACKING 8
     14 #pragma pack(push,_CRT_PACKING)
     15 #endif
     16 
     17 #ifdef __cplusplus
     18 extern "C" {
     19 #endif
     20 
     21 #if defined (__GNUC__)
     22 #ifndef __GNUC_VA_LIST
     23 #define __GNUC_VA_LIST
     24   typedef __builtin_va_list __gnuc_va_list;
     25 #endif
     26 #endif /* __GNUC__ */
     27 
     28 #ifndef _VA_LIST_DEFINED	/* if stdargs.h didn't define it */
     29 #define _VA_LIST_DEFINED
     30 #if defined(__GNUC__)
     31   typedef __gnuc_va_list va_list;
     32 #elif defined(_MSC_VER)
     33   typedef char *  va_list;
     34 #elif !defined(__WIDL__)
     35 #error VARARGS not implemented for this compiler
     36 #endif
     37 #endif /* _VA_LIST_DEFINED */
     38 
     39 #ifdef __cplusplus
     40 #define _ADDRESSOF(v) (&reinterpret_cast<const char &>(v))
     41 #else
     42 #define _ADDRESSOF(v) (&(v))
     43 #endif
     44 
     45 #if defined (__GNUC__)
     46 /* Use GCC builtins */
     47 
     48 #define _crt_va_start(v,l)	__builtin_va_start(v,l)
     49 #define _crt_va_arg(v,l)	__builtin_va_arg(v,l)
     50 #define _crt_va_end(v)		__builtin_va_end(v)
     51 #define _crt_va_copy(d,s)	__builtin_va_copy(d,s)
     52 
     53 #elif defined(_MSC_VER)
     54 /* MSVC specific */
     55 
     56 #if defined(_M_IA64)
     57 #define _VA_ALIGN 8
     58 #define _SLOTSIZEOF(t) ((sizeof(t) + _VA_ALIGN - 1) & ~(_VA_ALIGN - 1))
     59 #define _VA_STRUCT_ALIGN 16
     60 #define _ALIGNOF(ap) ((((ap)+_VA_STRUCT_ALIGN - 1) & ~(_VA_STRUCT_ALIGN -1)) - (ap))
     61 #define _APALIGN(t,ap) (__alignof(t) > 8 ? _ALIGNOF((uintptr_t) ap) : 0)
     62 #else
     63 #define _SLOTSIZEOF(t) (sizeof(t))
     64 #define _APALIGN(t,ap) (__alignof(t))
     65 #endif
     66 
     67 #if defined(_M_IX86)
     68 
     69 #define _INTSIZEOF(n) ((sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1))
     70 #define _crt_va_start(v,l)	((v) = (va_list)_ADDRESSOF(l) + _INTSIZEOF(l))
     71 #define _crt_va_arg(v,l)	(*(l *)(((v) += _INTSIZEOF(l)) - _INTSIZEOF(l)))
     72 #define _crt_va_end(v)		((v) = (va_list)0)
     73 #define _crt_va_copy(d,s)	((d) = (s))
     74 
     75 #elif defined(_M_AMD64)
     76 
     77 #define _PTRSIZEOF(n) ((sizeof(n) + sizeof(void*) - 1) & ~(sizeof(void*) - 1))
     78 #define _ISSTRUCT(t)  ((sizeof(t) > sizeof(void*)) || (sizeof(t) & (sizeof(t) - 1)) != 0)
     79 #define _crt_va_start(v,l)	((v) = (va_list)_ADDRESSOF(l) + _PTRSIZEOF(l))
     80 #define _crt_va_arg(v,t)	_ISSTRUCT(t) ?						\
     81 				 (**(t**)(((v) += sizeof(void*)) - sizeof(void*))) :	\
     82 				 ( *(t *)(((v) += sizeof(void*)) - sizeof(void*)))
     83 #define _crt_va_end(v)		((v) = (va_list)0)
     84 #define _crt_va_copy(d,s)	((d) = (s))
     85 
     86 #elif defined(_M_IA64)
     87 
     88 #error VARARGS not implemented for IA64
     89 
     90 #else
     91 
     92 #error VARARGS not implemented for this TARGET
     93 
     94 #endif /* cpu ifdefs */
     95 
     96 #endif /* compiler ifdefs */
     97 
     98 #ifdef __cplusplus
     99 }
    100 #endif
    101 
    102 #ifndef __WIDL__
    103 #pragma pack(pop)
    104 #endif
    105 
    106 #endif /* _INC_VADEFS */
    107 
    108