1/////////////////////////////////////////////////////////////////////////////
2//
3// (C) Copyright Ion Gaztanaga 2009-2013.
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_IS_STATEFUL_VALUE_TRAITS_HPP
14#define BOOST_INTRUSIVE_DETAIL_IS_STATEFUL_VALUE_TRAITS_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#if defined(_MSC_VER) && (_MSC_VER <= 1310)
25
26#include <boost/intrusive/detail/mpl.hpp>
27
28namespace boost {
29namespace intrusive {
30namespace detail {
31
32template<class ValueTraits>
33struct is_stateful_value_traits
34{
35 static const bool value = !detail::is_empty_class<ValueTraits>::value;
36};
37
38}}}
39
40#else
41
42#include <boost/intrusive/detail/function_detector.hpp>
43
44BOOST_INTRUSIVE_CREATE_FUNCTION_DETECTOR(to_node_ptr, boost_intrusive)
45BOOST_INTRUSIVE_CREATE_FUNCTION_DETECTOR(to_value_ptr, boost_intrusive)
46
47namespace boost {
48namespace intrusive {
49namespace detail {
50
51template<class ValueTraits>
52struct is_stateful_value_traits
53{
54 typedef typename ValueTraits::node_ptr node_ptr;
55 typedef typename ValueTraits::pointer pointer;
56 typedef typename ValueTraits::value_type value_type;
57 typedef typename ValueTraits::const_node_ptr const_node_ptr;
58 typedef typename ValueTraits::const_pointer const_pointer;
59
60 typedef ValueTraits value_traits;
61
62 static const bool value =
63 (boost::intrusive::function_detector::NonStaticFunction ==
64 (BOOST_INTRUSIVE_DETECT_FUNCTION(ValueTraits, boost_intrusive, node_ptr, to_node_ptr, (value_type&) )))
65 ||
66 (boost::intrusive::function_detector::NonStaticFunction ==
67 (BOOST_INTRUSIVE_DETECT_FUNCTION(ValueTraits, boost_intrusive, pointer, to_value_ptr, (node_ptr) )))
68 ||
69 (boost::intrusive::function_detector::NonStaticFunction ==
70 (BOOST_INTRUSIVE_DETECT_FUNCTION(ValueTraits, boost_intrusive, const_node_ptr, to_node_ptr, (const value_type&) )))
71 ||
72 (boost::intrusive::function_detector::NonStaticFunction ==
73 (BOOST_INTRUSIVE_DETECT_FUNCTION(ValueTraits, boost_intrusive, const_pointer, to_value_ptr, (const_node_ptr) )))
74 ;
75};
76
77}}}
78
79#endif
80
81#endif //@ifndef BOOST_INTRUSIVE_DETAIL_IS_STATEFUL_VALUE_TRAITS_HPP
82