date.h

#pragma once
#include <iostream>
#include <exception>
#include <string>
#include <iomanip>
#include <sstream>

using namespace std;

class Date
{
public:
    Date();

    Date(int year, int month, int day);

    string DateToStr() const;

    int getYear() const;

    int getMonth() const;

    int getDay() const;

private:
    int _Year, _Month, _Day;
};

Date ParseDate(istream& is);

ostream& operator<<(ostream& os, const Date& _Date);

ostream& operator<<(ostream& os, const pair <Date, string>& _Pair);

bool operator<(const Date& _Left, const Date& _Right);

bool operator<=(const Date& _Left, const Date& _Right);

bool operator>(const Date& _Left, const Date& _Right);

bool operator>=(const Date& _Left, const Date& _Right);

bool operator==(const Date& _Left, const Date& _Right);

bool operator!=(const Date& _Left, const Date& _Right);