#pragma once

#ifndef ZIPPED_RANGE_H

#define ZIPPED_RANGE_H

// boost includes

#include <boost range.hpp=""></boost>

#include <boost iterator="" zip_iterator.hpp=""></boost>

/*!

  \file     zipped_range.h

  \brief    Contains a range creator for boost::zip_iterator objects.

  \remark   Zipped ranges are currently constrained to a 2-tuple.

*/

namespace tcg {

template <typename rng1,="" rng2="" typename=""></typename>

struct _zip_rng_traits {

  typedef boost::zip_iterator<

      boost::tuple<typename boost::range_iterator<rng1="">::type,</typename>

                   typename boost::range_iterator<rng2>::type>></rng2>

      iterator;

  typedef std::pair<iterator, iterator=""> range;</iterator,>

};

//**********************************************************************************

//    Permuted Range  creator

//**********************************************************************************

template <typename rng1,="" rng2="" typename=""></typename>

typename _zip_rng_traits<rng1, rng2="">::range zipped_range(Rng1 &rng1,</rng1,>

                                                         Rng2 &rng2) {

  typedef typename _zip_rng_traits<rng1, rng2="">::range range;</rng1,>

  typedef typename _zip_rng_traits<rng1, rng2="">::iterator iterator;</rng1,>

  return range(

      iterator(boost::make_tuple(boost::begin(rng1), boost::begin(rng2))),

      iterator(boost::make_tuple(boost::end(rng1), boost::end(rng2))));

}

}  // namespace tcg

#endif  // ZIPPED_RANGE_H