varargs.h

利用POS机具硬件改为条纹码扫描器的编程代码

/*  varargs.h

    Definitions for accessing parameters in functions that accept
    a variable number of arguments.  These macros are compatible
    with UNIX System V.  Use stdarg.h for ANSI C compatibility.

        Copyright (c) Borland International 1991
    All Rights Reserved.
*/

#ifndef __VARARGS_H
#define __VARARGS_H

#ifdef __STDARG_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;
#define va_dcl va_list va_alist;
#define va_start(ap) ap = (va_list)&va_alist
#define va_arg(ap, type) (*(type _FAR *)(((*(char _FAR *_FAR *)&(ap))+=((sizeof(type)+1) & 0xFFFE))-(((sizeof(type)+1) & 0xFFFE))))
#define va_end(ap)   ap = ((void _FAR *)0)

#endif	/* __VARARGS_H */