#include <stdio.h>

#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif


#ifdef __STDC__
void f(int field, ...);
#else
void f();
#endif

void main()
{
    f(1, "string");
    f(2, 17, 4);
    f(3, 8);
    f(2, 4, 17);
    f(1, "another string");
}


#ifdef __STDC__
void f(int field,...)
#else
void f (va_alist)
va_dcl
#endif
{
	va_list   ap;
#ifndef __STDC__
	int       field;
#endif
	int       int1, int2;
	char      *s;

#ifdef __STDC__
	va_start (ap, field);
#else
	va_start (ap);
	field = va_arg(ap, int);
#endif


	switch ( field )
	{
		case 1:
			s = va_arg (ap, char *);
			printf ("1 string: %s\n", s);
			break;
		case 2:
			int1 = va_arg (ap, int);
			int2 = va_arg (ap, int);
			printf ("2 nubers: %d, %d\n", int1, int2);
			break;
		case 3:
			int1 = va_arg (ap, int);
			printf ("1 number: %d\n", int1);
			break;
		default:
			printf ("error: %d\n", field);
			break;
	} 

	va_end (ap);
}