mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
217 lines
6.1 KiB
217 lines
6.1 KiB
/***
|
|
*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 */
|