[distance] add primary dispatch definition under algorithms/dispatch

include/boost/geometry/algorithms/dispatch/distance.hpp

@@ -0,0 +1,65 @@
+// 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.
+// Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland.
+
+// 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_ALGORITHMS_DISPATCH_DISTANCE_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DISPATCH_DISTANCE_HPP
+
+
+#include <boost/geometry/core/reverse_dispatch.hpp>
+#include <boost/geometry/core/tag_cast.hpp>
+#include <boost/geometry/strategies/distance.hpp>
+#include <boost/geometry/algorithms/not_implemented.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+
+using strategy::distance::services::return_type;
+
+
+template
+<
+    typename Geometry1, typename Geometry2,
+    typename Strategy = typename detail::distance::default_strategy<Geometry1, Geometry2>::type,
+    typename Tag1 = typename tag_cast<typename tag<Geometry1>::type, multi_tag>::type,
+    typename Tag2 = typename tag_cast<typename tag<Geometry2>::type, multi_tag>::type,
+    typename StrategyTag = typename strategy::distance::services::tag<Strategy>::type,
+    bool Reverse = reverse_dispatch<Geometry1, Geometry2>::type::value
+>
+struct distance: not_implemented<Tag1, Tag2>
+{};
+
+
+
+
+
+} // namespace dispatch
+#endif // DOXYGEN_NO_DISPATCH
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DISPATCH_DISTANCE_HPP