pointer-to-member/point.cc - Implementation of class Point and the tree move methods - not important for the example. | Lecture 5 - slide 14 : 40 Program 2 |
// Implementation of the member functions. Not really important for the example. #include <cmath> #include <iostream> #include "point.h" Point::Point(double x_coord, double y_coord): x(x_coord), y(y_coord){ } Point::Point(): x(0.0), y(0.0){ } double Point::getx () const{ return x; } double Point::gety () const{ return y; } void Point::move_relative(double dx, double dy){ x += dx; y += dy; } void Point::move_absolute(double x1, double y1){ x = x1; y = y1; } void Point::move_funny(double dx, double dy){ x += dx*2; y -= dy; } double Point::distance_to(Point p){ return sqrt((x - p.x) * (x - p.x) + (y - p.y) * (y - p.y)); } std::ostream& operator<<(std::ostream& s, const Point& p){ return s << "(" << p.getx() << "," << p.gety() << ")" ; }