Distance.h

#ifndef theplu_yat_statistics_distance_h
#define theplu_yat_statistics_distance_h

// $Id: Distance.h 3548 2017-01-01 04:56:44Z peter $

/*
  Copyright (C) 2016 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/>.
*/

#include "yat/utility/iterator_traits.h"

#include <boost/concept_check.hpp>

namespace theplu {
namespace yat {
namespace statistics {

  template<class Derived>
  class Distance
  {
  public:
    template <typename Iterator1, typename Iterator2>
    double operator()(Iterator1 beg1, Iterator1 end1, Iterator2 beg2) const
    {
      using utility::weighted_if_any2;
      typename weighted_if_any2<Iterator1, Iterator2>::type tag;
      return static_cast<const Derived*>(this)->distance(beg1, end1, beg2, tag);
    }
  };

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

#endif