DataWeight.h

#ifndef _theplu_yat_utility_data_weight_
#define _theplu_yat_utility_data_weight_ 

// $Id: DataWeight.h 2119 2009-12-12 23:11:43Z peter $

/*
  Copyright (C) 2008 Jari Häkkinen, Peter Johansson
  Copyright (C) 2009 Peter Johansson

  This file is part of the yat library, http://dev.thep.lu.se/yat

  The yat library 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.

  The yat library 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 yat. If not, see <http://www.gnu.org/licenses/>.
*/

namespace theplu {
namespace yat {
namespace utility {

  class DataWeight
  {
  public:
    explicit DataWeight(double data=0.0, double weight=1.0);

    double& data(void);

    const double& data(void) const;

    double& weight(void);

    const double& weight(void) const;
  private:
    double data_;
    double weight_;
    // using compiler generated copy
    // DataWeight(const DataWeight&)
    // DataWeight& operator=(const DataWeight&);
  };

  bool operator==(const DataWeight& lhs, const DataWeight& rhs);

  bool operator!=(const DataWeight&, const DataWeight&);

  bool operator<(const DataWeight&, const DataWeight&);

  bool operator>(const DataWeight&, const DataWeight&);

  bool operator<=(const DataWeight&, const DataWeight&);

  bool operator>=(const DataWeight&, const DataWeight&);


}}} // of namespace utility, yat, and theplu

#endif