Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
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+/*=============================================================================
+    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_REVERSE_VIEW_ITERATOR_07202005_0835)
+#define FUSION_REVERSE_VIEW_ITERATOR_07202005_0835
+
+#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/support/iterator_base.hpp>
+#include <boost/fusion/support/category_of.hpp>
+#include <boost/fusion/iterator/mpl/convert_iterator.hpp>
+#include <boost/fusion/adapted/mpl/mpl_iterator.hpp>
+#include <boost/fusion/view/reverse_view/detail/deref_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/next_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/prior_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/advance_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/distance_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/value_of_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/deref_data_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/value_of_data_impl.hpp>
+#include <boost/fusion/view/reverse_view/detail/key_of_impl.hpp>
+#include <boost/type_traits/is_base_of.hpp>
+#include <boost/static_assert.hpp>
+
+namespace boost { namespace fusion
+{
+    struct reverse_view_iterator_tag;
+
+    template <typename First>
+    struct reverse_view_iterator
+        : iterator_base<reverse_view_iterator<First> >
+    {
+        typedef convert_iterator<First> converter;
+        typedef typename converter::type first_type;
+        typedef reverse_view_iterator_tag fusion_tag;
+        typedef typename traits::category_of<first_type>::type category;
+
+        BOOST_STATIC_ASSERT((
+            is_base_of<
+                bidirectional_traversal_tag
+              , category>::value));
+
+        BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+        reverse_view_iterator(First const& in_first)
+            : first(converter::call(in_first)) {}
+
+        first_type first;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        reverse_view_iterator& operator= (reverse_view_iterator const&);
+    };
+}}
+
+#ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
+namespace std
+{
+    template <typename First>
+    struct iterator_traits< ::boost::fusion::reverse_view_iterator<First> >
+    { };
+}
+#endif
+
+#endif
+