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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // | |
3 | // (C) Copyright Ion Gaztanaga 2014-2014 | |
4 | // | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | // | |
9 | // See http://www.boost.org/libs/intrusive for documentation. | |
10 | // | |
11 | ///////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | #ifndef BOOST_INTRUSIVE_DETAIL_EMPTY_NODE_CHECKER_HPP | |
14 | #define BOOST_INTRUSIVE_DETAIL_EMPTY_NODE_CHECKER_HPP | |
15 | ||
16 | #ifndef BOOST_CONFIG_HPP | |
17 | # include <boost/config.hpp> | |
18 | #endif | |
19 | ||
20 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
21 | # pragma once | |
22 | #endif | |
23 | ||
24 | namespace boost { | |
25 | namespace intrusive { | |
26 | namespace detail { | |
27 | ||
28 | template<class ValueTraits> | |
29 | struct empty_node_checker | |
30 | { | |
31 | typedef ValueTraits value_traits; | |
32 | typedef typename value_traits::node_traits node_traits; | |
33 | typedef typename node_traits::const_node_ptr const_node_ptr; | |
34 | ||
35 | struct return_type {}; | |
36 | ||
37 | void operator () (const const_node_ptr&, const return_type&, const return_type&, return_type&) {} | |
38 | }; | |
39 | ||
40 | } //namespace detail{ | |
41 | } //namespace intrusive{ | |
42 | } //namespace boost{ | |
43 | ||
44 | #endif //BOOST_INTRUSIVE_DETAIL_EMPTY_NODE_CHECKER_HPP |