|
|
/***
*stdarg.h - defines ANSI-style macros for variable argument functions** Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.**Purpose:* This file defines ANSI-style macros for accessing arguments* of functions which take a variable number of arguments.* [ANSI]** [Public]*****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifndef _INC_STDARG
#define _INC_STDARG
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifdef _MSC_VER
/*
* Currently, all MS C compilers for Win32 platforms default to 8 byte * alignment. */#pragma pack(push,8)
#endif /* _MSC_VER */
#ifdef __cplusplus
extern "C" {#endif
#if !defined(_W64)
#if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
#define _W64 __w64
#else
#define _W64
#endif
#endif
#ifndef _UINTPTR_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 uintptr_t;#else
typedef _W64 unsigned int uintptr_t;#endif
#define _UINTPTR_T_DEFINED
#endif
#ifndef _VA_LIST_DEFINED
#ifdef _M_ALPHA
typedef struct { char *a0; /* pointer to first homed integer argument */ int offset; /* byte offset of next parameter */} va_list;#else
typedef char * va_list;#endif
#define _VA_LIST_DEFINED
#endif
#ifdef __cplusplus
#define _ADDRESSOF(v) ( &reinterpret_cast<const char &>(v) )
#else
#define _ADDRESSOF(v) ( &(v) )
#endif
#if defined(_M_CEE)
extern void __cdecl __va_start(va_list*, ...);extern void * __cdecl __va_arg(va_list*, ...);extern void __cdecl __va_end(va_list*);
#define va_start(ap,v) ( __va_start(&ap, _ADDRESSOF(v), sizeof(v), \
__builtin_alignof(v), _ADDRESSOF(v)) )#define va_arg(ap,t) ( *(t *)__va_arg(&ap, sizeof(t), \
__builtin_alignof(t), (t *)0) )#define va_end(ap) ( __va_end(&ap) )
#elif defined(_M_IX86)
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _INTSIZEOF(v) )
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define va_end(ap) ( ap = (va_list)0 )
#elif defined(_M_MRX000)
/* Use these types and definitions if generating code for MIPS */
#define va_start(ap,v) ap = (va_list)_ADDRESSOF(v) + sizeof(v)
#define va_end(list)
#define va_arg(list, mode) ((mode *)(list =\
(char *) ((((int)list + (__builtin_alignof(mode)<=4?3:7)) &\ (__builtin_alignof(mode)<=4?-4:-8))+sizeof(mode))))[-1]
/* +++++++++++++++++++++++++++++++++++++++++++
Because of parameter passing conventions in C: use mode=int for char, and short types use mode=double for float types use a pointer for array types +++++++++++++++++++++++++++++++++++++++++++ */
#elif defined(_M_ALPHA)
/* Use these types and definitions if generating code for ALPHA */
/*
* The Alpha compiler supports two builtin functions that are used to * implement stdarg/varargs. The __builtin_va_start function is used * by va_start to initialize the data structure that locates the next * argument. The __builtin_isfloat function is used by va_arg to pick * which part of the home area a given register argument is stored in. * The home area is where up to six integer and/or six floating point * register arguments are stored down (so they can also be referenced * by a pointer like any arguments passed on the stack). */
extern void * __builtin_va_start(va_list, ...);
#ifdef _CFRONT
#define __builtin_isfloat(a) __builtin_alignof(a)
#endif
#define va_start(list, v) __builtin_va_start(list, v, 1)
#define va_end(list)
#define va_arg(list, mode) \
( *( ((list).offset += ((int)sizeof(mode) + 7) & -8) , \ (mode *)((list).a0 + (list).offset - \ ((__builtin_isfloat(mode) && (list).offset <= (6 * 8)) ? \ (6 * 8) + 8 : ((int)sizeof(mode) + 7) & -8) \ ) \ ) \ )
#elif defined(_M_PPC)
/* Microsoft C8 front end (used in Motorola Merged compiler) *//* bytes that a type occupies in the argument list */#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
/* return 'ap' adjusted for type 't' in arglist */#define _ALIGNIT(ap,t) \
((((int)(ap))+(sizeof(t)<8?3:7)) & (sizeof(t)<8?~3:~7))
#define va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _INTSIZEOF(v) )
#define va_arg(ap,t) ( *(t *)((ap = (char *) (_ALIGNIT(ap, t) + _INTSIZEOF(t))) - _INTSIZEOF(t)) )
#define va_end(ap) ( ap = (va_list)0 )
#elif defined(_M_IA64)
#define _VA_STRUCT_ALIGN 16
#define _VA_ALIGN 8
#define _ALIGNOF(ap) ((((ap)+_VA_STRUCT_ALIGN - 1) & ~(_VA_STRUCT_ALIGN -1)) \
- (ap))#define _APALIGN(t,ap) (__alignof(t) > 8 ? _ALIGNOF((uintptr_t) ap) : 0)
#define _SLOTSIZEOF(t) ( (sizeof(t) + _VA_ALIGN - 1) & ~(_VA_ALIGN - 1) )
#ifdef __cplusplus
extern void __cdecl __va_start(va_list*, ...);#define va_start(ap,v) ( __va_start(&ap, _ADDRESSOF(v), _SLOTSIZEOF(v), \
_ADDRESSOF(v)) )#else
#define va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _SLOTSIZEOF(v) )
#endif
#define va_arg(ap,t) (*(t *)((ap += _SLOTSIZEOF(t)+ _APALIGN(t,ap)) \
-_SLOTSIZEOF(t)))
#define va_end(ap) ( ap = (va_list)0 )
#elif defined(_M_AMD64)
extern void __cdecl __va_start(va_list *, ...);
#define va_start(ap, x) ( __va_start(&ap, x) )
#define va_arg(ap, t) \
( ( sizeof(t) > sizeof(__int64) || ( sizeof(t) & (sizeof(t) - 1) ) != 0 ) \ ? **(t **)( ( ap += sizeof(__int64) ) - sizeof(__int64) ) \ : *(t *)( ( ap += sizeof(__int64) ) - sizeof(__int64) ) )#define va_end(ap) ( ap = (va_list)0 )
#else
/* A guess at the proper definitions for other platforms */
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define va_start(ap,v) ( ap = (va_list)_ADDRESSOF(v) + _INTSIZEOF(v) )
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define va_end(ap) ( ap = (va_list)0 )
#endif
#ifdef __cplusplus
}#endif
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
#endif /* _INC_STDARG */
|
