text: /*=============================================================================
      Copyright (c) 2001-2011 Joel de Guzman
  
      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)
  ==============================================================================*/
  #if !defined(FUSION_NEXT_IMPL_07162005_1029)
  #define FUSION_NEXT_IMPL_07162005_1029
  
  #include <qsboost/fusion/support/config.hpp>
  #include <qsboost/fusion/iterator/next.hpp>
  
  namespace qsboost { namespace fusion
  {
      struct transform_view_iterator_tag;
      struct transform_view_iterator2_tag;
  
      template<typename First, typename F>
      struct transform_view_iterator;
  
      template <typename First1, typename First2, typename F>
      struct transform_view_iterator2;
  
      namespace extension
      {
          template <typename Tag>
          struct next_impl;
  
          // Unary Version
          template <>
          struct next_impl<transform_view_iterator_tag>
          {
              template <typename Iterator>
              struct apply
              {
                  typedef typename Iterator::first_type first_type;
                  typedef typename result_of::next<first_type>::type next_type;
                  typedef typename Iterator::transform_type transform_type;
                  typedef transform_view_iterator<next_type, transform_type> type;
  
                  QSBOOST_CONSTEXPR QSBOOST_FUSION_GPU_ENABLED
                  static type
                  call(Iterator const& i)
                  {
                      return type(fusion::next(i.first), i.f);
                  }
              };
          };
  
          // Binary Version
          template <>
          struct next_impl<transform_view_iterator2_tag>
          {
              template <typename Iterator>
              struct apply
              {
                  typedef typename Iterator::first1_type first1_type;
                  typedef typename Iterator::first2_type first2_type;
                  typedef typename result_of::next<first1_type>::type next1_type;
                  typedef typename result_of::next<first2_type>::type next2_type;
                  typedef typename Iterator::transform_type transform_type;
                  typedef transform_view_iterator2<next1_type, next2_type, transform_type> type;
  
                  QSBOOST_CONSTEXPR QSBOOST_FUSION_GPU_ENABLED
                  static type
                  call(Iterator const& i)
                  {
                      return type(fusion::next(i.first1), fusion::next(i.first2), i.f);
                  }
              };
          };
      }
  }}
  
  #endif
  
  
  