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 is_leafboost::geometry::index::detail::rtree::visitors::is_leaf24 is_leaf() 25 : result(false) 26 {} 27 operator ()boost::geometry::index::detail::rtree::visitors::is_leaf28 inline void operator()(internal_node const&) 29 { 30 // result = false; 31 } 32 operator ()boost::geometry::index::detail::rtree::visitors::is_leaf33 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 46