#include <iostream>
#include <iomanip>
#include <cstdlib>

#include "date0.h"
#include "date3.h"
#include "date1.h"
using namespace std;

void f(date0 *p);

int main()
{
	date3 d3 {4, 10, 2025};   //There is a date0 inside of a date3.
	date1 d1 {4, 10, 2025};   //There is a date0 inside of a date1.
	//date0 d0 {4, 10, 2025}; //will no longer compile because it's abstract
	
	f(&d1);
	f(&d3);

	return EXIT_SUCCESS;
}

void f(date0 *p)  //Can still have a pointer to a date0
{
	cout << *p << "\n";
}