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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
+// Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France.
+
+// This file was modified by Oracle on 2015.
+// Modifications copyright (c) 2015, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
+
+// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
+// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
+
+// 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)
+
+#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_INTERFACE_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_INTERFACE_HPP
+
+#include <boost/variant/apply_visitor.hpp>
+#include <boost/variant/static_visitor.hpp>
+#include <boost/variant/variant_fwd.hpp>
+
+#include <boost/geometry/geometries/concepts/check.hpp>
+
+#include <boost/geometry/algorithms/dispatch/expand.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+
+namespace resolve_variant
+{
+    
+template <typename Geometry>
+struct expand
+{
+    template <typename Box>
+    static inline void apply(Box& box, Geometry const& geometry)
+    {
+        concept::check<Box>();
+        concept::check<Geometry const>();
+        concept::check_concepts_and_equal_dimensions<Box, Geometry const>();
+        
+        dispatch::expand<Box, Geometry>::apply(box, geometry);
+    }
+};
+
+template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
+struct expand<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
+{
+    template <typename Box>
+    struct visitor: boost::static_visitor<void>
+    {
+        Box& m_box;
+        
+        visitor(Box& box) : m_box(box) {}
+        
+        template <typename Geometry>
+        void operator()(Geometry const& geometry) const
+        {
+            return expand<Geometry>::apply(m_box, geometry);
+        }
+    };
+    
+    template <class Box>
+    static inline void
+    apply(Box& box,
+          boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry)
+    {
+        return boost::apply_visitor(visitor<Box>(box), geometry);
+    }
+};
+    
+} // namespace resolve_variant
+    
+    
+/***
+*!
+\brief Expands a box using the extend (envelope) of another geometry (box, point)
+\ingroup expand
+\tparam Box type of the box
+\tparam Geometry of second geometry, to be expanded with the box
+\param box box to expand another geometry with, might be changed
+\param geometry other geometry
+\param strategy_less
+\param strategy_greater
+\note Strategy is currently ignored
+ *
+template
+<
+    typename Box, typename Geometry,
+    typename StrategyLess, typename StrategyGreater
+>
+inline void expand(Box& box, Geometry const& geometry,
+            StrategyLess const& strategy_less,
+            StrategyGreater const& strategy_greater)
+{
+    concept::check_concepts_and_equal_dimensions<Box, Geometry const>();
+
+    dispatch::expand<Box, Geometry>::apply(box, geometry);
+}
+***/
+
+
+/*!
+\brief Expands a box using the bounding box (envelope) of another geometry (box, point)
+\ingroup expand
+\tparam Box type of the box
+\tparam Geometry \tparam_geometry
+\param box box to be expanded using another geometry, mutable
+\param geometry \param_geometry geometry which envelope (bounding box) will be added to the box
+
+\qbk{[include reference/algorithms/expand.qbk]}
+ */
+template <typename Box, typename Geometry>
+inline void expand(Box& box, Geometry const& geometry)
+{
+    resolve_variant::expand<Geometry>::apply(box, geometry);
+}
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_INTERFACE_HPP