
  <span class="keyword">typedef</span> <span class="identifier">super_type</span><span class="special">::</span><span class="identifier">reference</span>       <a name="boost.compute.counting_iterator.reference"></a><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">difference_type</span> <a name="boost.compute.counting_iterator.difference_type"