question about C++

Question

Write implementation of the:

a. Copy constructor

b. Assignment operator

c. Less than operator

d. I also want to be able to write:

Date d;

........

cout<<d;

Answer 1

Lets assume we have a class as follows:

class Square {

private:

int side;

public:

Square(int s) { side = s; }

friend bool operator< (const Square &sq1, const Square &sq2);

}

a.

Square (const Square &sq ){ side = sq.side }

b.

Square& operator = (const Square &sq){ return *this; }

c.

bool operator< (const Square &sq1, const Square &sq2)

{

return s1.side < s2.side;

}

d.

friend ostream &operator<< (ostream &output, const Date &date)

{

output << "Month " << date.getMonth();

return output;

}