Added boost header

test/external/boost/geometry/multi/algorithms/distance.hpp

@@ -0,0 +1,130 @@
+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
+
+// 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_MULTI_ALGORITHMS_DISTANCE_HPP
+#define BOOST_GEOMETRY_MULTI_ALGORITHMS_DISTANCE_HPP
+
+
+#include <boost/numeric/conversion/bounds.hpp>
+#include <boost/range.hpp>
+
+#include <boost/geometry/multi/core/tags.hpp>
+#include <boost/geometry/multi/core/geometry_id.hpp>
+#include <boost/geometry/multi/core/point_type.hpp>
+
+#include <boost/geometry/algorithms/distance.hpp>
+#include <boost/geometry/util/select_coordinate_type.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace distance
+{
+
+
+template<typename Geometry, typename MultiGeometry, typename Strategy>
+struct distance_single_to_multi
+{
+    typedef typename strategy::distance::services::return_type<Strategy>::type return_type;
+
+    static inline return_type apply(Geometry const& geometry,
+                MultiGeometry const& multi,
+                Strategy const& strategy)
+    {
+        bool first = true;
+        return_type mindist;
+
+        for(typename range_iterator<MultiGeometry const>::type it = boost::begin(multi);
+                it != boost::end(multi);
+                ++it)
+        {
+            return_type dist = geometry::distance(geometry, *it);
+            if (first || dist < mindist)
+            {
+                mindist = dist;
+            }
+            first = false;
+        }
+
+        return mindist;
+    }
+};
+
+template<typename Multi1, typename Multi2, typename Strategy>
+struct distance_multi_to_multi
+{
+    typedef typename strategy::distance::services::return_type<Strategy>::type return_type;
+
+    static inline return_type apply(Multi1 const& multi1,
+                Multi2 const& multi2, Strategy const& strategy)
+    {
+        bool first = true;
+        return_type mindist;
+
+        for(typename range_iterator<Multi1 const>::type it = boost::begin(multi1);
+                it != boost::end(multi1);
+                ++it)
+        {
+            return_type dist = distance_single_to_multi
+                <
+                    typename range_value<Multi1>::type,
+                    Multi2,
+                    Strategy
+                >::apply(*it, multi2, strategy);
+            if (first || dist < mindist)
+            {
+                mindist = dist;
+            }
+            first = false;
+        }
+
+        return mindist;
+    }
+};
+
+
+}} // namespace detail::distance
+#endif
+
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+template
+<
+    typename SingleGeometryTag,
+    typename G1,
+    typename G2,
+    typename Strategy
+>
+struct distance<SingleGeometryTag, multi_tag, G1, G2, strategy_tag_distance_point_point, Strategy>
+    : detail::distance::distance_single_to_multi<G1, G2, Strategy>
+{};
+
+template <typename G1, typename G2, typename Strategy>
+struct distance<multi_tag, multi_tag, G1, G2, strategy_tag_distance_point_point, Strategy>
+    : detail::distance::distance_multi_to_multi<G1, G2, Strategy>
+{};
+
+} // namespace dispatch
+#endif
+
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_DISTANCE_HPP