ceph/src/boost/libs/fusion/include/boost/fusion/view/single_view/single_view_iterator.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3     Copyright (c) 2011 Eric Niebler
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #if !defined(BOOST_FUSION_SINGLE_VIEW_ITERATOR_05052005_0340)
   9 #define BOOST_FUSION_SINGLE_VIEW_ITERATOR_05052005_0340
  10
  11 #include <boost/fusion/support/config.hpp>
  12 #include <boost/fusion/support/detail/access.hpp>
  13 #include <boost/fusion/support/iterator_base.hpp>
  14 #include <boost/fusion/view/single_view/detail/deref_impl.hpp>
  15 #include <boost/fusion/view/single_view/detail/next_impl.hpp>
  16 #include <boost/fusion/view/single_view/detail/prior_impl.hpp>
  17 #include <boost/fusion/view/single_view/detail/advance_impl.hpp>
  18 #include <boost/fusion/view/single_view/detail/distance_impl.hpp>
  19 #include <boost/fusion/view/single_view/detail/equal_to_impl.hpp>
  20 #include <boost/fusion/view/single_view/detail/value_of_impl.hpp>
  21 #include <boost/config.hpp>
  22
  23 #if defined (BOOST_MSVC)
  24 #  pragma warning(push)
  25 #  pragma warning (disable: 4512) // assignment operator could not be generated.
  26 #endif
  27
  28 namespace boost { namespace fusion
  29 {
  30     struct single_view_iterator_tag;
  31     struct random_access_traversal_tag;
  32
  33     template <typename SingleView, typename Pos>
  34     struct single_view_iterator
  35         : iterator_base<single_view_iterator<SingleView, Pos> >
  36     {
  37         typedef single_view_iterator_tag fusion_tag;
  38         typedef random_access_traversal_tag category;
  39         typedef typename SingleView::value_type value_type;
  40         typedef Pos position;
  41         typedef SingleView single_view_type;
  42
  43         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  44         explicit single_view_iterator(single_view_type& in_view)
  45             : view(in_view) {}
  46
  47         SingleView& view;
  48
  49     private:
  50         single_view_iterator& operator=(single_view_iterator const&);
  51     };
  52 }}
  53
  54 #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
  55 namespace std
  56 {
  57     template <typename SingleView, typename Pos>
  58     struct iterator_traits< ::boost::fusion::single_view_iterator<SingleView, Pos> >
  59     { };
  60 }
  61 #endif
  62
  63 #if defined (BOOST_MSVC)
  64 #  pragma warning(pop)
  65 #endif
  66
  67 #endif
  68
  69