points.cpp

template<typename Data> struct Point {
    // Structs have all public by default, where classes are all private by default
    Data x;
    Data y;
    
    Point():                    // default constructor
        x(0), y(0) {            // member initialization, an alternative to [= in the constructor]
            // do things
    }
    
    Point(Data ix, Data iy):    // constructor
        x(ix), y(iy) {          // member initialization
            // do things
    }

    Point(const Point& ip) {    // copy constructor
        x = ip.x;
        y = ip.y;
    }
    
    Point& operator=(const Point& righthand) { // assignment operator
        x = righthand.x;
        y = righthand.y;
    }
    
    ~Point() {                  // destructor
        // do things
    }
};

int main() {
    Point<double> foo(5, 6);                // on the stack
    Point<int>* bar = new Point<int>(5, 6); // on the heap

    Point<double> baz(foo);                 // copy construct
    Point<double> quux = foo;               // assignmnet

    delete bar;
}