//ic210 sec 4002
//13 nov 2009
//structs and operator overload
#include <iostream>

using namespace std;

//define new type point

struct point
{
	double x, y;

}; //don't forget the ;

//void midpoint(double x1, double y1, double x2, double y2, double& , double&);
point midpoint(point, point);
point readpoint(istream&);
void writepoint(ostream&, point);

//compute sum
point operator+(point, point);
point operator/(point, int);

int main() {

	//read point data (x, y) from console
	point p1, p2;

	p1.x = 6;
	p1.y = 5;
	//access the "data members" of point
	cout << "enter coordinates (x,y) for p1";
	p1 = readpoint(cin);

	cout << "enter coordinates (x,y) for p2";
	p2 = readpoint(cin);

	//add the two points together
	point p3;

	//p3 = sum(p1,p2);
	p3 = p1 + p2;

	


	//write the result
	cout << "p1 + p2 is ";
	writepoint(cout,p3);

	return 0;
}


point midpoint(point p1, point p2)
{
	point middle;
	
	//syntactic sugar
	middle = (p1 + p2)/2;

	//middle.x = (p1.x + p2.x) /2;
	//middle.y = (p1.y + p2.y) /2;

	return middle;
}

//read point from stream; input format is (x,y)
point readpoint(istream& IN)
{
	point p;
	char junk;
	IN >> junk >> p.x >> junk >> p.y >> junk;
	return p;
}

//write point to stream using format (x,y)
void writepoint(ostream& OUT, point p)
{
	OUT << '(' << p.x << ',' << p.y << ')';
}

point operator+(point p1, point p2)
{

	point p3;

	p3.x = p1.x + p2.x;
	p3.y = p1.y + p2.y;

	return p3;
}

point operator/(point p, int i)
{
	point result;

	result.x = p.x/i;
	result.y = p.y/i;

	return result;
}