// point.cc in which move is only present if C is a floating point type.

#include <cmath>
#include <iostream>
#include "point.h"

template<typename C> Point<C>::Point(C x_coord, C y_coord):
   x(x_coord), y(y_coord){
}

template<typename C> Point<C>::Point(): x(0.0), y(0.0){
}

template<typename C> C Point<C>::getx () const{
  return x;
}

template<typename C> C Point<C>::gety () const{
  return y;
}

// if C is not a floating point type, the move function is not present.
template<typename C> Enable_if<std::is_floating_point<C>::value, Point<C>>& Point<C>::move(C dx, C dy){
  x += dx; y += dy;                                         
  return *this;
}

template<typename C> double Point<C>::distance_to(Point<C> p){
  return sqrt((x - p.x) * (x - p.x) + (y - p.y) * (y - p.y));  // Similar assumptions for - and *
}


template<typename C> std::ostream& operator<< 
                        (std::ostream& s, const Point<C>& p){
  return s << "(" << p.getx() << "," << p.gety() << ")" ;
}