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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
+
+// This file was modified by Oracle on 2014.
+// Modifications copyright (c) 2014, 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.
+
+// 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_STRATEGIES_DEFAULT_COMPARABLE_DISTANCE_RESULT_HPP
+#define BOOST_GEOMETRY_STRATEGIES_DEFAULT_COMPARABLE_DISTANCE_RESULT_HPP
+
+#include <boost/geometry/strategies/comparable_distance_result.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+/*!
+\brief Meta-function defining return type of comparable_distance function
+\ingroup distance
+\note The strategy defines the return-type (so this situation is different
+    from length, where distance is sqr/sqrt, but length always squared)
+ */
+template <typename Geometry1, typename Geometry2 = Geometry1>
+struct default_comparable_distance_result
+    : comparable_distance_result<Geometry1, Geometry2, void>
+{};
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_STRATEGIES_DEFAULT_COMPARABLE_DISTANCE_RESULT_HPP