ss="identifier">NodeTraits</span><span class="special">::</span><span class="identifier">const_node_ptr</span>      <a name="boost.intrusive.avltree_algorithms.const_node_ptr"></a><span class="identifier">const_node_ptr</span><span class="special">;</span>    
  <span class="keyword">typedef</span> <span class="identifier">NodeTraits</span><span class="special">::</span><span class="identifier">balance</span>             <a name="boost.intrusive.avltree_algorithms.balance"></a><span class="identifier">balan