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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2014 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2014 Bruno Lalande, Paris, France.
+// Copyright (c) 2014 Mateusz Loskot, London, UK.
+// Copyright (c) 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_ALGORITHMS_DETAIL_GET_MAX_SIZE_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_GET_MAX_SIZE_HPP
+
+
+#include <cstddef>
+
+#include <boost/geometry/core/access.hpp>
+#include <boost/geometry/util/math.hpp>
+
+namespace boost { namespace geometry
+{
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail
+{
+
+template <typename Box, std::size_t Dimension>
+struct get_max_size_box
+{
+ static inline typename coordinate_type<Box>::type apply(Box const& box)
+ {
+ typename coordinate_type<Box>::type s
+ = geometry::math::abs(geometry::get<1, Dimension>(box) - geometry::get<0, Dimension>(box));
+
+ return (std::max)(s, get_max_size_box<Box, Dimension - 1>::apply(box));
+ }
+};
+
+template <typename Box>
+struct get_max_size_box<Box, 0>
+{
+ static inline typename coordinate_type<Box>::type apply(Box const& box)
+ {
+ return geometry::math::abs(geometry::get<1, 0>(box) - geometry::get<0, 0>(box));
+ }
+};
+
+// This might be implemented later on for other geometries too.
+// Not dispatched yet.
+template <typename Box>
+inline typename coordinate_type<Box>::type get_max_size(Box const& box)
+{
+ return get_max_size_box<Box, dimension<Box>::value - 1>::apply(box);
+}
+
+} // namespace detail
+#endif // DOXYGEN_NO_DETAIL
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_GET_MAX_SIZE_HPP