text: //---------------------------------------------------------------------------//
  // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
  //
  // Distributed under the Boost Software License, Version 1.0
  // See accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt
  //
  // See http://boostorg.github.com/compute for more information.
  //---------------------------------------------------------------------------//
  
  #ifndef BOOST_COMPUTE_DETAIL_PRINT_RANGE_HPP
  #define BOOST_COMPUTE_DETAIL_PRINT_RANGE_HPP
  
  #include <vector>
  #include <iostream>
  #include <iterator>
  
  #include <boost/compute/algorithm/copy.hpp>
  #include <boost/compute/container/vector.hpp>
  #include <boost/compute/detail/is_buffer_iterator.hpp>
  #include <boost/compute/detail/iterator_range_size.hpp>
  
  namespace boost {
  namespace compute {
  namespace detail {
  
  template<class InputIterator>
  inline void print_range(InputIterator first,
                          InputIterator last,
                          command_queue &queue,
                          typename boost::enable_if<
                              is_buffer_iterator<InputIterator>
                          >::type* = 0)
  {
      typedef typename
          std::iterator_traits<InputIterator>::value_type
          value_type;
  
      const size_t size = iterator_range_size(first, last);
  
      // copy values to temporary vector on the host
      std::vector<value_type> tmp(size);
      ::boost::compute::copy(first, last, tmp.begin(), queue);
  
      // print values
      std::cout << "[ ";
      for(size_t i = 0; i < size; i++){
          std::cout << tmp[i];
          if(i != size - 1){
              std::cout << ", ";
          }
      }
      std::cout << " ]" << std::endl;
  }
  
  template<class InputIterator>
  inline void print_range(InputIterator first,
                          InputIterator last,
                          command_queue &queue,
                          typename boost::enable_if_c<
                              !is_buffer_iterator<InputIterator>::value
                          >::type* = 0)
  {
      typedef typename
          std::iterator_traits<InputIterator>::value_type
          value_type;
  
      const context &context = queue.get_context();
      const size_t size = iterator_range_size(first, last);
  
      // copy values to temporary vector on the device
      ::boost::compute::vector<value_type> tmp(size, context);
      ::boost::compute::copy(first, last, tmp.begin(), queue);
  
      print_range(tmp.begin(), tmp.end(), queue);
  }
  
  } // end detail namespace
  } // end compute namespace
  } // end boost namespace
  
  #endif // BOOST_COMPUTE_DETAIL_PRINT_RANGE_HPP
  