ceph/src/boost/boost/fusion/view/nview/nview_iterator.hpp

   1 /*=============================================================================
   2     Copyright (c) 2009 Hartmut Kaiser
   3
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 ==============================================================================*/
   7 #if !defined(BOOST_FUSION_NVIEW_ITERATOR_SEP_23_2009_0948PM)
   8 #define BOOST_FUSION_NVIEW_ITERATOR_SEP_23_2009_0948PM
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/fusion/support/iterator_base.hpp>
  12 #include <boost/fusion/support/category_of.hpp>
  13 #include <boost/fusion/sequence/intrinsic/begin.hpp>
  14 #include <boost/fusion/sequence/intrinsic/end.hpp>
  15
  16 #include <boost/fusion/view/nview/detail/size_impl.hpp>
  17 #include <boost/fusion/view/nview/detail/begin_impl.hpp>
  18 #include <boost/fusion/view/nview/detail/end_impl.hpp>
  19 #include <boost/fusion/view/nview/detail/deref_impl.hpp>
  20 #include <boost/fusion/view/nview/detail/value_of_impl.hpp>
  21 #include <boost/fusion/view/nview/detail/next_impl.hpp>
  22 #include <boost/fusion/view/nview/detail/prior_impl.hpp>
  23 #include <boost/fusion/view/nview/detail/at_impl.hpp>
  24 #include <boost/fusion/view/nview/detail/value_at_impl.hpp>
  25 #include <boost/fusion/view/nview/detail/advance_impl.hpp>
  26 #include <boost/fusion/view/nview/detail/distance_impl.hpp>
  27 #include <boost/fusion/view/nview/detail/equal_to_impl.hpp>
  28
  29 namespace boost { namespace fusion
  30 {
  31     struct nview_iterator_tag;
  32     struct random_access_traversal_tag;
  33
  34     template<typename Sequence, typename Pos>
  35     struct nview_iterator
  36       : iterator_base<nview_iterator<Sequence, Pos> >
  37     {
  38         typedef nview_iterator_tag fusion_tag;
  39         typedef random_access_traversal_tag category;
  40
  41         typedef Sequence sequence_type;
  42         typedef Pos first_type;
  43
  44         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  45         explicit nview_iterator(Sequence& in_seq)
  46           : seq(in_seq) {}
  47
  48         Sequence& seq;
  49
  50     private:
  51         // silence MSVC warning C4512: assignment operator could not be generated
  52         nview_iterator& operator= (nview_iterator const&);
  53     };
  54
  55 }}
  56
  57 #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
  58 namespace std
  59 {
  60     template <typename Sequence, typename Pos>
  61     struct iterator_traits< ::boost::fusion::nview_iterator<Sequence, Pos> >
  62     { };
  63 }
  64 #endif
  65
  66 #endif
  67
  68