Chris@16: /////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga  2006-2013
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: //    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //          http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/intrusive for documentation.
Chris@16: //
Chris@16: /////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: #ifndef BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
Chris@16: #define BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
Chris@16: 
Chris@101: #include <boost/intrusive/detail/config_begin.hpp>
Chris@101: #include <boost/intrusive/intrusive_fwd.hpp>
Chris@16: #include <boost/intrusive/link_mode.hpp>
Chris@16: #include <boost/intrusive/pointer_traits.hpp>
Chris@16: 
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@101: #  pragma once
Chris@101: #endif
Chris@101: 
Chris@16: namespace boost {
Chris@16: namespace intrusive {
Chris@16: 
Chris@16: //!This value traits template is used to create value traits
Chris@16: //!from user defined node traits where value_traits::value_type and
Chris@16: //!node_traits::node should be equal
Chris@101: template<class NodeTraits, link_mode_type LinkMode
Chris@101:    #ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
Chris@101:    = safe_link
Chris@101:    #endif
Chris@101: >
Chris@16: struct trivial_value_traits
Chris@16: {
Chris@16:    typedef NodeTraits                                          node_traits;
Chris@16:    typedef typename node_traits::node_ptr                      node_ptr;
Chris@16:    typedef typename node_traits::const_node_ptr                const_node_ptr;
Chris@16:    typedef typename node_traits::node                          value_type;
Chris@16:    typedef node_ptr                                            pointer;
Chris@16:    typedef const_node_ptr                                      const_pointer;
Chris@16:    static const link_mode_type link_mode = LinkMode;
Chris@16:    static node_ptr       to_node_ptr (value_type &value)
Chris@16:       {  return pointer_traits<node_ptr>::pointer_to(value);  }
Chris@16:    static const_node_ptr to_node_ptr (const value_type &value)
Chris@16:       {  return pointer_traits<const_node_ptr>::pointer_to(value);  }
Chris@16:    static const pointer  &      to_value_ptr(const node_ptr &n)        {  return n; }
Chris@16:    static const const_pointer  &to_value_ptr(const const_node_ptr &n)  {  return n; }
Chris@16: };
Chris@16: 
Chris@16: } //namespace intrusive
Chris@16: } //namespace boost
Chris@16: 
Chris@101: #include <boost/intrusive/detail/config_end.hpp>
Chris@101: 
Chris@16: #endif //BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP