ext-boost/boost/intrusive/detail/empty_node_checker.hpp
2016-03-02 00:27:27 -05:00

45 lines
1.2 KiB
C++

/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2014-2014
//
// Distributed under 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)
//
// See http://www.boost.org/libs/intrusive for documentation.
//
/////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_INTRUSIVE_DETAIL_EMPTY_NODE_CHECKER_HPP
#define BOOST_INTRUSIVE_DETAIL_EMPTY_NODE_CHECKER_HPP
#ifndef BOOST_CONFIG_HPP
# include <boost/config.hpp>
#endif
#if defined(BOOST_HAS_PRAGMA_ONCE)
# pragma once
#endif
namespace boost {
namespace intrusive {
namespace detail {
template<class ValueTraits>
struct empty_node_checker
{
typedef ValueTraits value_traits;
typedef typename value_traits::node_traits node_traits;
typedef typename node_traits::const_node_ptr const_node_ptr;
struct return_type {};
void operator () (const const_node_ptr&, const return_type&, const return_type&, return_type&) {}
};
} //namespace detail{
} //namespace intrusive{
} //namespace boost{
#endif //BOOST_INTRUSIVE_DETAIL_EMPTY_NODE_CHECKER_HPP