Default constructors

• How are constructors defined ?

    // point.h
    class Point
    {
        public:
            Point();
        private:
            int m_x;
            int m_y;
    };

    // point.cpp
    // Default constructor is the one with no arguments:
    Point::Point()
    {
        m_x = 0;
        m_y = 0;
    }