C++ program

Problem 3.3

Copy the solution from problem 3.2

Create a friend function for the function operator== which tests to see

if two objects are equivalent. The two objects are equivalent if they

have the same reportingMark and number (do not look at the kind, loaded,

and destination fields).

Test with the following code in main:

if (car1 == car2)

cout << "car1 is the same car as car2 ";

else

cout << "car1 is not the same car as car2 ";

if (car2 == car3)

cout << "car2 is the same car as car3 ";

else

cout << "car2 is not the same car as car3 ";

Write the code to change car2 to have the following information:

reportingMark: UP

carNumber: 81002

kind: box

loaded: true

destination: Spokane

Print out car1, car2 and car3 after the edits.

MY problem 3.2 code is :

#include

#include

#include

#include

#include

using namespace std;

void input(string &reportingMark, int &carNumber, string &kind, bool &loaded, string &destination);

class Car

{

private:

static const int FIELD_WIDTH = 22;

string reportingMark;

int carNumber;

string kind;

bool loaded;

string destination;

public:

Car()

{

setUpCar(reportingMark = "", carNumber = 0, kind = "other", loaded = false, destination ="NONE");

}

Car(const Car &userCar)

{

setUpCar(userCar.reportingMark, userCar.carNumber, userCar.kind, userCar.loaded, userCar.destination);

}

Car(string reportingMark, int carNumber, string kind, bool loaded, string destination)

{

setUpCar(reportingMark, carNumber, kind, loaded, destination);

}

~Car(){};

friend bool operator==(const Car &car1,const Car &car2);

void setUpCar(string reportingMark, int carNumber, string kind, bool loaded, string destination);

void output();

};

int main()

{

string reportingMark;

int carNumber;

string kind;

bool loaded;

string destination;

input(reportingMark, carNumber, kind, loaded, destination);

Car car1(reportingMark, carNumber, kind, loaded, destination);

Car car2(car1);

Car car3;

cout << endl << "Contents of car1:" << endl;

car1.output();

cout << endl << "Contents of car2:" << endl;

car2.output();

cout << endl << "Contents of car3:" << endl;

car3.output();

if (car1 == car2)

cout << "car1 is the same car as car2 ";

else

cout << "car1 is not the same car as car2 ";

if (car2 == car3)

cout << "car2 is the same car as car3 ";

else

cout << "car2 is not the same car as car3 ";

}

void Car::setUpCar(string reportingMark, int carNumber, string kind, bool loaded, string destination)

{

this->reportingMark = reportingMark;

this->carNumber = carNumber;

this->kind = kind;

this->loaded = loaded;

this->destination = destination;

}

void Car::output()

{

cout << setw(FIELD_WIDTH) << "Reporting Mark: " << setw(FIELD_WIDTH) << reportingMark << endl;

cout << setw(FIELD_WIDTH) << "Car Number: " << setw(FIELD_WIDTH) << carNumber << endl;

cout << setw(FIELD_WIDTH) << "Kind: " << setw(FIELD_WIDTH) << kind << endl;

cout << setw(FIELD_WIDTH) << "Loaded: " << setw(FIELD_WIDTH);

if(loaded)

cout << "Loaded" << endl;

else

cout << "Not Loaded" << endl;

cout << setw(FIELD_WIDTH) << "Destination: " << setw(FIELD_WIDTH) << destination << endl;

}

bool operator==(const Car &car1,const Car &car2)

{

if((car2.reportingMark.compare(car1.reportingMark) == 0) && car2.carNumber == car1.carNumber)

return true;

else

return false;

}

void input(string &reportingMark, int &carNumber, string &kind, bool &loaded, string &destination)

{

string isLoaded = "";

cout << "Enter Reporting Mark: ";

cin >> reportingMark;

cout << "Enter Car Number: ";

cin >> carNumber;

cout << "Enter kind: ";

cin >> kind;

cout << "Enter loaded: ";

cin >> isLoaded;

if(isLoaded == "yes")

loaded = true;

else

loaded = false;

cout << "Enter destination: ";

cin.ignore();

getline(cin, destination);

while(loaded && destination == "NONE")

{

cout << "Since the car is loaded it must have a destination, please enter destination: ";

getline(cin, destination);

}

}