ceph/src/boost/libs/geometry/include/boost/geometry/index/detail/rtree/visitors/is_leaf.hpp

   1 // Boost.Geometry Index
   2 //
   3 // R-tree leaf node checking visitor implementation
   4 //
   5 // Copyright (c) 2011-2015 Adam Wulkiewicz, Lodz, Poland.
   6 //
   7 // Use, modification and distribution is subject to the Boost Software License,
   8 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_IS_LEAF_HPP
  12 #define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_IS_LEAF_HPP
  13
  14 namespace boost { namespace geometry { namespace index {
  15
  16 namespace detail { namespace rtree { namespace visitors {
  17
  18 template <typename Value, typename Options, typename Box, typename Allocators>
  19 struct is_leaf : public rtree::visitor<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag, true>::type
  20 {
  21     typedef typename rtree::internal_node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type internal_node;
  22     typedef typename rtree::leaf<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type leaf;
  23
  24     is_leaf()
  25         : result(false)
  26     {}
  27
  28     inline void operator()(internal_node const&)
  29     {
  30         // result = false;
  31     }
  32
  33     inline void operator()(leaf const&)
  34     {
  35         result = true;
  36     }
  37
  38     bool result;
  39 };
  40
  41 }}} // namespace detail::rtree::visitors
  42
  43 }}} // namespace boost::geometry::index
  44
  45 #endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_VISITORS_IS_LEAF_HPP