comparison DEPENDENCIES/generic/include/boost/geometry/index/detail/algorithms/content.hpp @ 16:2665513ce2d3

Add boost headers

+// Boost.Geometry Index
+//
+// n-dimensional content (hypervolume) - 2d area, 3d volume, ...
+//
+// Copyright (c) 2011-2013 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_INDEX_DETAIL_ALGORITHMS_CONTENT_HPP
+#define BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_CONTENT_HPP
+
+namespace boost { namespace geometry { namespace index { namespace detail {
+
+template <typename Indexable>
+struct default_content_result
+{
+    typedef typename select_most_precise<
+        typename coordinate_type<Indexable>::type,
+        long double
+    >::type type;
+};
+
+namespace dispatch {
+
+template <typename Box, size_t CurrentDimension>
+struct content_box
+{
+    BOOST_STATIC_ASSERT(0 < CurrentDimension);
+    //BOOST_STATIC_ASSERT(CurrentDimension <= traits::dimension<Box>::value);
+
+    static inline typename detail::default_content_result<Box>::type apply(Box const& b)
+    {
+        return content_box<Box, CurrentDimension - 1>::apply(b) *
+            ( get<max_corner, CurrentDimension - 1>(b) - get<min_corner, CurrentDimension - 1>(b) );
+    }
+};
+
+template <typename Box>
+struct content_box<Box, 1>
+{
+    static inline typename detail::default_content_result<Box>::type apply(Box const& b)
+    {
+        return get<max_corner, 0>(b) - get<min_corner, 0>(b);
+    }
+};
+
+template <typename Indexable, typename Tag>
+struct content
+{
+    BOOST_MPL_ASSERT_MSG(false, NOT_IMPLEMENTED_FOR_THIS_INDEXABLE_AND_TAG, (Indexable, Tag));
+};
+
+template <typename Indexable>
+struct content<Indexable, point_tag>
+{
+    static typename detail::default_content_result<Indexable>::type apply(Indexable const&)
+    {
+        return 0;
+    }
+};
+
+template <typename Indexable>
+struct content<Indexable, box_tag>
+{
+    static typename default_content_result<Indexable>::type apply(Indexable const& b)
+    {
+        return dispatch::content_box<Indexable, dimension<Indexable>::value>::apply(b);
+    }
+};
+
+} // namespace dispatch
+
+template <typename Indexable>
+typename default_content_result<Indexable>::type content(Indexable const& b)
+{
+    return dispatch::content<Indexable,
+                             typename tag<Indexable>::type
+                            >::apply(b);
+}
+
+}}}} // namespace boost::geometry::index::detail
+
+#endif // BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_CONTENT_HPP