#ifndef DATE_H #define DATE_H #include #include using namespace std; class Date { friend std:: ostream& operator < = 1 && mm = 1900 && yy

#ifndef DATE_H

#define DATE_H

#include

#include

using namespace std;

class Date {

friend std:: ostream& operator<<(std::ostream&, const Date&);

public:

Date(int m = 1, int d =1, int y = 1900);

void setDate (int, int, int);

Date& operator++();

Date operator++(int);

Date& operator+=(unsigned int);

static bool leapYear(int);

bool endOfMonth(int) const;

private:

unsigned int month;

unsigned int day;

unsigned int year;

static const std::array days;

void helpIncrement();

};

#include

#include

#include "Date.h"

using namespace std;

const array Date::days{

0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

Date::Date(int month, int day, int year){

setDate(month, day, year);}

void Date::setDate(int mm, int dd, int yy){

if (mm >= 1 && mm <= 12){

month = mm;}

else{

throw invalid_argument{"Month must be 1-12"};}

if (yy >= 1900 && yy<= 2100){

year =yy;}

else{

throw invalid_argument{"Year must be >= 1900 and <= 2100"};}

if ((mn==2 && leapYear(year) && dd >= 1 && dd <=29) || (dd >=1 && dd <=days[mn])){

day = dd;}

else {

throw invalid_argument{

"Day is out of range for current month and year"};

}}

Date& Date::operator++(){

helpIncrement();

return *this;

}

Date Date::operator++(int){

Date temp{*this};

helpIncrement();

return temp;}

Date& Date::operator+=(unsigned int additionalDays){

for (unsigned int i=0; i < additionalDays; ++i){

helpIncrement();

}return *this;}

bool Date::leapYear(int testYear){

return (testYear % 400 == 0 || (testYear % 100 != 0 && testYear % 4 ==0));}

bool Date::endOfMonth(int testDay) const {

if (month ==2 && leapYear(year)){

return testDay == days[month];}}

void Date::helpIncrement(){

if (!endOfMonth(day)){

++day;}

else {

if (month < 12) {

++month; day = 1;}

else {++year; month = 1; day = 1;}}}

ostream& operator<<(ostream& output, const Date& d) {

static string monthName[13]{"", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};

output << monthName[d.month] << ' ' << d.day << ", " << d.year;

return output;}

#include

#include "Date.h"

using namespace std;

int main(){

Date d1{12, 27, 2010};

Date d2;

cout << "d1 is " << d1 << " d2 is " << d2;

cout << " d1 += 7 is " << (d1 += 7);

d2.setDate(2, 28, 2008);

cout << " d2 is " << d2;

cout << " ++d2 is " << ++d2 << " (leap year allows 29th)";

Date d3{7, 13, 2010);

cout << " Testing the prefix increment operator: " << " d3 is " << d3 << endl;

cout << "++d3 is " << ++d3 << endl;

cout << " d3 is " << d3;

cout << " Testing the postfix increment operator: " << " d3 is " << d3 << endl;

cout << "d3++ is " << d3++ << endl;

cout << " d3 is " << d3 << endl;}

Consider the class Date in C++ pasted above. Test the overloaded operators ++ and +=. Modify the class to define the overloaded -- and -=. Also define the overloaded rational operators < and >.