간단한 오버라이딩

#include <iostream>

using namespace std;

class Point {

int x, y;

public:

Point(int _x = 0, int _y = 0) :x(_x), y(_y) {}

void Print() const {

cout << x << ", " << y << endl;

}

const Point operator+(const Point &arg) const

{

Point pt;

pt.x = this->x + arg.x;

pt.y = this->y + arg.y;

return pt;

}

const Point& operator++()

{

++x;

++y;

return *this;

}

const Point operator++(int)

{

Point pt(x, y);

++x;

++y;

return pt;

}

};

int main()

{

Point pt1(2, 3);

Point pt2(3, 5);

++pt2;

Point pt3;

pt3 = pt1 + pt2;

pt3.Print();

pt2.Print();

return 0;

}