ch-08-ex-04-solution.cpp
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ch-08-ex-04-solution.cpp
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			/*
			* chapter-08-exercise-04.cpp
			*
			* STL and 2D Point class
			*
			* Created on: Nov 1, 2012
			* Author: Radu Popescu <radu.popescu@epfl.ch>
			*/

			#include <iostream>
			#include <set>

			#include "Point2d.hpp"

			int main(int argc, char *argv[]) {
			std::set<Point2d> points;

			// Set the tolerance for the comparison operator of Point2d
			Point2d::sTolerance = 1e-6;

			Point2d origin(0.0, 0.0);

			points.insert(origin);
			points.insert(Point2d(-2.0, 1.0));
			points.insert(Point2d(-2.0, -5.0));
			points.insert(Point2d(0.0, 0.0));

			std::cout << "Number of points in set = " << points.size() << "\n";

			std::set<Point2d>::const_iterator c;
			std::cout.precision(3);
			for (c = points.begin(); c != points.end(); c++) {
			std::cout << c->x << " " << c->y << "\n";
			}

			return 0;
			}