point2d.cpp

#include <iostream>
#include <cmath>

class Point2d
{
    private:
        double m_x {0};
        double m_y {0};
    public:

        Point2d() = default;
        
        Point2d(double x, double y)
        : m_x{x}
        , m_y{y}
        {
            std::cout << "Constructor called\n";
        }

        void print() const
        {
            std::cout << "Point2d(" << m_x << "," << m_y << ")\n"; 
        }

        double distanceTo(const Point2d& p)
        {
            return std::sqrt((m_x - p.m_x)*(m_x - p.m_x) + (m_y - p.m_y)*(m_y - p.m_y));
        }


};


int main()
{
    Point2d first{};
    Point2d second{ 3.0, 4.0 };

    // Point2d third{ 4.0 }; // should error if uncommented

    first.print();
    second.print();

    std::cout << "Distance between two points: " << first.distanceTo(second) << '\n';

    return 0;
}