lt;</span> <span class="identifier">node_pointer</span><span class="special">,</span> <span class="number">2</span> <span class="special">&gt;</span> <a name="boost.heap.skew_heap.implementation_defined.child_list_type"></a><span class="identifier">child_list_type</span><span class="special">;</span>    
  <span class="keyword">typedef</span> <span class="identifier">child_list_type</span><span class="special">::</span><span class="identifier">iterator</span>       <a name="boost.heap.skew_heap.implementati