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/*-
* Copyright 2011-2012 Diomidis Spinellis
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef POINT_H
#define POINT_H
#include <iostream> // ostream
using namespace std;
struct Point {
double x, y;
Point() {}
Point(double px, double py) : x(px), y(py) {}
friend ostream& operator<<(ostream& o, const Point &p);
friend ostream& operator<<(ostream& o, const Point *p);
};
// Functor for sorting points on x
struct less_x : public binary_function<const Point *, const Point *, bool> {
bool operator()(const Point *a, const Point *b) { return a->x < b->x; }
};
// Functor for sorting points on y
struct less_y : public binary_function<const Point *, const Point *, bool> {
bool operator()(const Point *a, const Point *b) { return a->y < b->y; }
};
#endif /* POINT_H */