// Boost.Geometry Index
|
//
|
// R-tree nodes weak visitor and nodes base type
|
//
|
// Copyright (c) 2011-2014 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_INDEX_DETAIL_RTREE_NODE_WEAK_VISITOR_HPP
|
#define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_WEAK_VISITOR_HPP
|
|
namespace boost { namespace geometry { namespace index {
|
|
namespace detail { namespace rtree {
|
|
// empty visitor
|
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag, bool IsVisitableConst>
|
struct weak_visitor {};
|
|
// node
|
|
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
struct weak_node {};
|
|
// nodes variants forward declarations
|
|
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
struct weak_internal_node;
|
|
template <typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
struct weak_leaf;
|
|
// nodes conversion
|
|
template <typename Derived, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
inline Derived & get(weak_node<Value, Parameters, Box, Allocators, Tag> & n)
|
{
|
return static_cast<Derived&>(n);
|
}
|
|
// apply visitor
|
|
template <typename Visitor, typename Value, typename Parameters, typename Box, typename Allocators, typename Tag>
|
inline void apply_visitor(Visitor & v,
|
weak_node<Value, Parameters, Box, Allocators, Tag> & n,
|
bool is_internal_node)
|
{
|
BOOST_GEOMETRY_INDEX_ASSERT(&n, "null ptr");
|
if ( is_internal_node )
|
{
|
typedef weak_internal_node<Value, Parameters, Box, Allocators, Tag> internal_node;
|
v(get<internal_node>(n));
|
}
|
else
|
{
|
typedef weak_leaf<Value, Parameters, Box, Allocators, Tag> leaf;
|
v(get<leaf>(n));
|
}
|
}
|
|
}} // namespace detail::rtree
|
|
}}} // namespace boost::geometry::index
|
|
#endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_DYNAMIC_VISITOR_HPP
|
