reactos/include/crt/vadefs.h

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the w64 mingw-runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER within this package.
   5  */
   6 #ifndef _INC_VADEFS
   7 #define _INC_VADEFS
   8
   9 #ifndef _WIN32
  10 #error Only Win32 target is supported!
  11 #endif
  12
  13 #include <crtdefs.h>
  14
  15 #undef _CRT_PACKING
  16 #define _CRT_PACKING 8
  17 #pragma pack(push,_CRT_PACKING)
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 #ifdef __cplusplus
  24 #define _ADDRESSOF(v) (&reinterpret_cast<const char &>(v))
  25 #else
  26 #define _ADDRESSOF(v) (&(v))
  27 #endif
  28
  29 #if defined(__ia64__)
  30 #define _VA_ALIGN 8
  31 #define _SLOTSIZEOF(t) ((sizeof(t) + _VA_ALIGN - 1) & ~(_VA_ALIGN - 1))
  32 #define _VA_STRUCT_ALIGN 16
  33 #define _ALIGNOF(ap) ((((ap)+_VA_STRUCT_ALIGN - 1) & ~(_VA_STRUCT_ALIGN -1)) - (ap))
  34 #define _APALIGN(t,ap) (__alignof(t) > 8 ? _ALIGNOF((uintptr_t) ap) : 0)
  35 #else
  36 #define _SLOTSIZEOF(t) (sizeof(t))
  37 #define _APALIGN(t,ap) (__alignof(t))
  38 #endif
  39
  40 #define _INTSIZEOF(n) ((sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1))
  41
  42 #if defined(__GNUC__)
  43 #define _crt_va_start(v,l)      __builtin_va_start(v,l)
  44 #define _crt_va_arg(v,l)        __builtin_va_arg(v,l)
  45 #define _crt_va_end(v)  __builtin_va_end(v)
  46 #define __va_copy(d,s)  __builtin_va_copy(d,s)
  47 #elif defined(_MSC_VER)
  48
  49 #if defined(_M_IX86)
  50 #define _crt_va_start(v,l)      ((void)((v) = (va_list)_ADDRESSOF(l) + _INTSIZEOF(l)))
  51 #define _crt_va_arg(v,l)        (*(l *)(((v) += _INTSIZEOF(l)) - _INTSIZEOF(l)))
  52 #define _crt_va_end(v)  ((void)((v) = (va_list)0))
  53 #define __va_copy(d,s)  ((void)((d) = (s)))
  54 #elif defined(_M_AMD64)
  55 #define _PTRSIZEOF(n) ((sizeof(n) + sizeof(void*) - 1) & ~(sizeof(void*) - 1))
  56 #define _ISSTRUCT(t) ((sizeof(t) > sizeof(void*)) || (sizeof(t) & (sizeof(t)-1)) != 0)
  57 #define _crt_va_start(v,l)      ((void)((v) = (va_list)_ADDRESSOF(l) + _PTRSIZEOF(l)))
  58 #define _crt_va_arg(v,t)        (_ISSTRUCT(t) ? \
  59                             (**(t**)(((v) += sizeof(void*)) - sizeof(void*))) : \
  60                             (*(t*)(((v) += sizeof(void*)) - sizeof(void*))))
  61 #define _crt_va_end(v)  ((void)((v) = (va_list)0))
  62 #define __va_copy(d,s)  ((void)((d) = (s)))
  63 #elif defined(_M_ARM)
  64 #ifdef  __cplusplus
  65   extern void __cdecl __va_start(va_list*, ...);
  66   #define _crt_va_start(ap,v) __va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), _ADDRESSOF(v))
  67 #else
  68   #define _crt_va_start(ap,v) (ap = (va_list)_ADDRESSOF(v) + _SLOTSIZEOF(v))
  69 #endif
  70 #define _crt_va_arg(ap,t) (*(t*)((ap += _SLOTSIZEOF(t) + _APALIGN(t,ap))  - _SLOTSIZEOF(t)))
  71 #define _crt_va_end(ap)      ( ap = (va_list)0 )
  72 #else //if defined(_M_IA64) || defined(_M_CEE)
  73 #error Please implement me
  74 #endif
  75
  76 #endif
  77
  78 #if !defined(va_copy) && (!defined(__STRICT_ANSI__) || __STDC_VERSION__ + 0 >= 199900L)
  79 #define va_copy(d,s)    __va_copy((d),(s))
  80 #endif
  81
  82 #ifdef __cplusplus
  83 }
  84 #endif
  85
  86 #pragma pack(pop)
  87 #endif