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diff --git a/boost/geometry/index/detail/rtree/node/weak_visitor.hpp b/boost/geometry/index/detail/rtree/node/weak_visitor.hpp
new file mode 100644
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+++ b/boost/geometry/index/detail/rtree/node/weak_visitor.hpp
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+// Boost.Geometry Index
+//
+// R-tree nodes weak visitor and nodes base type
+//
+// Copyright (c) 2011-2014 Adam Wulkiewicz, Lodz, Poland.
+//
+// Use, modification and distribution is subject to 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)
+
+#ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_VISITOR_HPP
+#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_VISITOR_HPP
+
+namespace boost { namespace geometry { namespace index {
+
+namespace detail { namespace rtree {
+
+// empty visitor
+template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag, bool IsVisitableConst>
+struct weak_visitor {};
+
+// node
+
+template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
+struct weak_node {};
+
+// nodes variants forward declarations
+
+template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
+struct weak_internal_node;
+
+template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
+struct weak_leaf;
+
+// nodes conversion
+
+template <typename Derived, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
+inline Derived & get(weak_node<Value, Parameters, Box, Allocators, Tag> & n)
+{
+    return static_cast<Derived&>(n);
+}
+
+// apply visitor
+
+template <typename Visitor, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
+inline void apply_visitor(Visitor & v,
+                          weak_node<Value, Parameters, Box, Allocators, Tag> & n,
+                          bool is_internal_node)
+{
+    BOOST_GEOMETRY_INDEX_ASSERT(&n, "null ptr");
+    if ( is_internal_node )
+    {
+        typedef weak_internal_node<Value, Parameters, Box, Allocators, Tag> internal_node;
+        v(get<internal_node>(n));
+    }
+    else
+    {
+        typedef weak_leaf<Value, Parameters, Box, Allocators, Tag> leaf;
+        v(get<leaf>(n));
+    }
+}
+
+}} // namespace detail::rtree
+
+}}} // namespace boost::geometry::index
+
+#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_DYNAMIC_VISITOR_HPP