;</span>    
  <span class="keyword">typedef</span> <span class="identifier">date_type</span><span class="special">::</span><span class="identifier">calendar_type</span>                        <a name="boost.date_time.dst_calc_engine.calendar_type"></a><span class="identifier">calendar_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <a class="link" href="dst_calculator.html" title="Class template dst_calculator">dst_calculator</a><span class="special">&lt;</span> <span class