ator                     <a name="boost.compute.flat_map.const_iterator"></a><span class="identifier">const_iterator</span><span class="special">;</span>        
  <span class="keyword">typedef</span> <span class="identifier">vector_type</span><span class="special">::</span><span class="identifier">reverse_iterator</span>                   <a name="boost.compute.flat_map.reverse_iterator"></a><span class="identifier">reverse_iterator</span><span class="special">;</span>      
  <span class="keyword">typedef