Question

class Point {
public:
    Point(int x, int y) : { x = new int(x); y = new int(y) }
    ...
    ...
    Point& operator=(const Point& other) {
        if(this!=&other){
            delete x;
            delete y;
            x = new int(*other.x);
            y = new int(*other.y);
        }
        return *this;
    }
private:
    const int* x;
    const int* y;
}

Will this implementation of operator= work even if x and y of this were already initialized? does deleting a const pointer allow us to reassign it?

Answer 1

That’s not a const pointer, but a pointer to const. So you can modify the pointer, you can’t that which it points to.

A const pointer is

int* const x;

and your code wouldn’t compile then.