><span class="identifier">reference</span><span class="special">;</span>      
  <span class="keyword">typedef</span> <span class="identifier">super_type</span><span class="special">::</span><span class="identifier">base_type</span>       <a name="boost.compute.transform_iterator.base_type"></a><span class="identifier">base_type</span><span class="special">;</span>      
  <span class="keyword">typedef</span> <span class="identifier">super_type</span><span class="special">::</span><span class="identifier">d