stdarg.h

利用POS机具硬件改为条纹码扫描器的编程代码

/*  stdarg.h

    Definitions for accessing parameters in functions that accept
    a variable number of arguments.

        Copyright (c) Borland International 1987,1988,1990,1991
    All Rights Reserved.
*/

#ifndef __STDARG_H
#define __STDARG_H

#ifdef __VARARGS_H
#error Can't include both STDARG.H and VARARGS.H
#endif

#ifdef __DLL__
#define _FAR far
#else
#define _FAR
#endif

#if __STDC__
#define _Cdecl
#else
#define _Cdecl  cdecl
#endif

#ifndef __PAS__
#define _CType _Cdecl
#else
#define _CType pascal
#endif

typedef void _FAR *va_list;

#ifdef  __cplusplus                                 
#define va_start(ap, parmN) (ap = ...)
#else
#define va_start(ap, parmN) ((void)((ap) = (va_list)((char _FAR *)(&parmN)+((sizeof(parmN)+1) & 0xFFFE))))
#endif

#define va_arg(ap, type) (*(type _FAR *)(((*(char _FAR *_FAR *)&(ap))+=((sizeof(type)+1) & 0xFFFE))-(((sizeof(type)+1) & 0xFFFE))))
#define va_end(ap)          ((void)0)

#if !__STDC__
#define _va_ptr             (...)
#endif

#endif