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Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\intrusive\member_value_traits.hpp

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/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga  2006-2007
//
// 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_MEMBER_VALUE_TRAITS_HPP
#define BOOST_INTRUSIVE_MEMBER_VALUE_TRAITS_HPP

#include <boost/intrusive/link_mode.hpp>
#include <iterator>
#include <boost/intrusive/detail/parent_from_member.hpp>

namespace boost {
namespace intrusive {

//!This value traits template is used to create value traits
//!from user defined node traits where value_traits::value_type will
//!store a node_traits::node
template< class T, class NodeTraits
        , typename NodeTraits::node T::* PtrToMember
        , link_mode_type LinkMode = safe_link>
struct member_value_traits
{
   public:
   typedef NodeTraits                                                node_traits;
   typedef T                                                         value_type;
   typedef typename node_traits::node                                node;
   typedef typename node_traits::node_ptr                            node_ptr;
   typedef typename node_traits::const_node_ptr                      const_node_ptr;
   typedef typename boost::pointer_to_other<node_ptr, T>::type       pointer;
   typedef typename boost::pointer_to_other<node_ptr, const T>::type const_pointer;
   typedef typename std::iterator_traits<pointer>::reference         reference;
   typedef typename std::iterator_traits<const_pointer>::reference   const_reference;
   static const link_mode_type link_mode = LinkMode;

   static node_ptr to_node_ptr(reference value)
   {  return node_ptr(&(value.*PtrToMember));   }

   static const_node_ptr to_node_ptr(const_reference value)
   {  return node_ptr(&(value.*PtrToMember));   }

   static pointer to_value_ptr(node_ptr n)
   {
      return pointer(detail::parent_from_member<value_type, node>
         (detail::get_pointer(n), PtrToMember)); 
   }

   static const_pointer to_value_ptr(const_node_ptr n)
   {
      return pointer(detail::parent_from_member<value_type, node>
         (detail::get_pointer(n), PtrToMember)); 
   }
};

} //namespace intrusive 
} //namespace boost 

#endif //BOOST_INTRUSIVE_MEMBER_VALUE_TRAITS_HPP

member_value_traits.hpp

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