date.h

#pragma once
#include <string>
#include "iostream"
#include "iomanip"
#include <exception>
#include "algorithm"
#include "map"
#include <vector>

using namespace std;

class Date{
public:
    Date();
    Date(const int &y,const int &m,const int &d);
    void printDate() const;
    int getYear() const;
    int getMonth() const;
    int getDay() const;
    string getDate() const;
    int year;
    int month;
    int day;
    string sdate;

};

bool checkFormat(std::string str);

//Date ParseDate(std::istringstream &sstr);

Date ParseDate(istringstream& date_stream);

Date ParseDate(istream &sstr);

const bool operator < (const Date &arg1,const Date &arg2);

const bool operator > (const Date &arg1,const Date &arg2);

const bool operator <= (const Date &arg1,const Date &arg2);

const bool operator >= (const Date &arg1,const Date &arg2);

const bool operator == (const Date &arg1,const Date &arg2);

const bool operator != (const Date &arg1,const Date &arg2);

ostream &operator <<(ostream &ostr,const Date &dt);