68 lines
2.5 KiB
Plaintext
68 lines
2.5 KiB
Plaintext
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/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(FUSION_REVERSE_VIEW_ITERATOR_07202005_0835)
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#define FUSION_REVERSE_VIEW_ITERATOR_07202005_0835
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/support/iterator_base.hpp>
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#include <boost/fusion/support/category_of.hpp>
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#include <boost/fusion/iterator/mpl/convert_iterator.hpp>
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#include <boost/fusion/adapted/mpl/mpl_iterator.hpp>
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#include <boost/fusion/view/reverse_view/detail/deref_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/next_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/prior_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/advance_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/distance_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/value_of_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/deref_data_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/value_of_data_impl.hpp>
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#include <boost/fusion/view/reverse_view/detail/key_of_impl.hpp>
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#include <boost/type_traits/is_base_of.hpp>
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#include <boost/static_assert.hpp>
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namespace boost { namespace fusion
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{
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struct reverse_view_iterator_tag;
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template <typename First>
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struct reverse_view_iterator
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: iterator_base<reverse_view_iterator<First> >
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{
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typedef convert_iterator<First> converter;
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typedef typename converter::type first_type;
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typedef reverse_view_iterator_tag fusion_tag;
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typedef typename traits::category_of<first_type>::type category;
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BOOST_STATIC_ASSERT((
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is_base_of<
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bidirectional_traversal_tag
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, category>::value));
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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reverse_view_iterator(First const& in_first)
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: first(converter::call(in_first)) {}
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first_type first;
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private:
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// silence MSVC warning C4512: assignment operator could not be generated
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reverse_view_iterator& operator= (reverse_view_iterator const&);
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};
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}}
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#ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
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namespace std
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{
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template <typename First>
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struct iterator_traits< ::boost::fusion::reverse_view_iterator<First> >
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{ };
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}
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#endif
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#endif
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