#include <iostream>
#include <cstdlib>
#include "date.h"
using namespace std;

//Function declarations:
void swap(   int& a,    int& b);
void swap(double& a, double& b);
void swap(  date& a,   date& b);

int main()
{
	int i {10};
	int j {20};
	::swap(i, j);
	cout << "i = " << i << ", j = " << j << "\n";

	double d {3.14};
	double e {2.71};
	::swap(d, e);
	cout << "d = " << d << ", e = " << e << "\n";

	date today;
	date tomorrow {today + 1};
	::swap(today, tomorrow);
	cout << "today = " << today << ", tomorrow = " << tomorrow << "\n";

	return EXIT_SUCCESS;
}

void swap(int& a, int& b)
{
	const int temp {a};
	a = b;
	b = temp;
}

void swap(double& a, double& b)
{
	const double temp {a};
	a = b;
	b = temp;
}

void swap(date& a, date& b)
{
	const date temp {a};
	a = b;
	b = temp;
}