span class="identifier">iterator</span><span class="special">;</span>              
  <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">T</span><span class="special">*</span>                                                                 <a name="boost.array.const_iterator"></a><span class="identifier">const_iterator</span><span class="special">;</span>        
  <span class="keyword">typedef</span> 
                  std::reverse_iterator<span class="special"