/*
 * Copyright 2011 Steven Gribble
 *
 *  This file is the solution to an exercise problem posed during
 *  one of the UW CSE 333 lectures (333exercises).
 *
 *  333exercises is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  333exercises is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with 333exercises.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _EX_THREEDPOINT_H_
#define _EX_THREEDPOINT_H_

#include <iostream>

namespace threedp {

class ThreeDPoint {
 public:
  // Default, zero-argument constructor with an initialization list.
  ThreeDPoint() : x_(0), y_(0), z_(0) { }

  // Three-argument constructor.
  ThreeDPoint(double x, double y, double z) : x_(x), y_(y), z_(z) { }

  // Copy constructor
  ThreeDPoint(const ThreeDPoint &copyme)
    : x_(copyme.x_), y_(copyme.y_), z_(copyme.z_) { }

  // Accessors
  double get_x() const { return x_; }
  double get_y() const { return y_; }
  double get_z() const { return z_; }

  // Inner product
  double operator*(const ThreeDPoint &rhs);

  // Assignment operator
  ThreeDPoint &operator=(const ThreeDPoint &rhs);

 private:
  double x_, y_, z_;
};
}  // namespace threedp

// Override "<<" for std::ostream
std::ostream &operator<<(std::ostream &out, const threedp::ThreeDPoint &pt);

#endif  // _EX_THREEDPOINT_H_