| unique-pointers-1/point.cc - The usual implementation of class Point - nothing of particular interest. | Lecture 4 - slide 16 : 40 Program 2 |
// Member definitions for the Point class. Nothing of particular interest. The destructor is revealing.
#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){
}
Point::~Point(){
std::cout << "Point deleted: " << x << "," << y << std::endl;
}
double Point::getx () const{
return x;
}
double Point::gety () const{
return y;
}
void Point::displace(double dx, double dy){
x += dx; y += dy;
}
double Point::distance_to(const 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() << ")" ;
}