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

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/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga  2007-2008
//
// 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_COMMON_SLIST_ALGORITHMS_HPP
#define BOOST_INTRUSIVE_COMMON_SLIST_ALGORITHMS_HPP

#include <boost/intrusive/detail/config_begin.hpp>
#include <boost/intrusive/intrusive_fwd.hpp>
#include <boost/intrusive/detail/assert.hpp>
#include <cstddef>

namespace boost {
namespace intrusive {
namespace detail {

template<class NodeTraits>
class common_slist_algorithms
{
   public:
   typedef typename NodeTraits::node_ptr        node_ptr;
   typedef typename NodeTraits::const_node_ptr  const_node_ptr;
   typedef NodeTraits                           node_traits;

   static node_ptr get_previous_node(node_ptr prev_init_node, node_ptr this_node)
   {
      node_ptr p = prev_init_node;
      for( node_ptr p_next
         ; this_node != (p_next = NodeTraits::get_next(p))
         ; p = p_next){
         //Logic error: possible use of linear lists with
         //operations only permitted with lists
         BOOST_INTRUSIVE_INVARIANT_ASSERT(p);
      }
      return p;
   }

   static void init_header(node_ptr this_node)  
   {  NodeTraits::set_next(this_node, this_node);  }  

   static void init(node_ptr this_node)  
   {  NodeTraits::set_next(this_node, 0);  }  

   static bool unique(const_node_ptr this_node)
   {
      node_ptr next = NodeTraits::get_next(this_node);
      return !next || next == this_node;
   }  

   static bool inited(const_node_ptr this_node)  
   {  return !NodeTraits::get_next(this_node); }

   static void unlink_after(node_ptr prev_node)
   {
      node_ptr this_node(NodeTraits::get_next(prev_node));
      NodeTraits::set_next(prev_node, NodeTraits::get_next(this_node));
   }

   static void unlink_after(node_ptr prev_node, node_ptr last_node)
   {  NodeTraits::set_next(prev_node, last_node);  }

   static void link_after(node_ptr prev_node, node_ptr this_node)
   {
      NodeTraits::set_next(this_node, NodeTraits::get_next(prev_node));
      NodeTraits::set_next(prev_node, this_node);
   }

   static void transfer_after(node_ptr p, node_ptr b, node_ptr e)
   {
      if (p != b && p != e) {
         node_ptr next_b = NodeTraits::get_next(b);
         node_ptr next_e = NodeTraits::get_next(e);
         node_ptr next_p = NodeTraits::get_next(p);
         NodeTraits::set_next(b, next_e);
         NodeTraits::set_next(e, next_p);
         NodeTraits::set_next(p, next_b);
      }
   }
};

} //namespace detail
} //namespace intrusive 
} //namespace boost 

#include <boost/intrusive/detail/config_end.hpp>

#endif //BOOST_INTRUSIVE_COMMON_SLIST_ALGORITHMS_HPP

common_slist_algorithms.hpp

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