"special">&gt;</span> <span class="identifier">us_dst_traits</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="dst_calc_engine.html" title="Class template dst_calc_engine">boost::date_time::dst_calc_engine</a><span class="special">&lt;</span><span class="identifier">date</span><span class="special">,</span> <span class="identifier">time_duration</span><span class="special">,</span> 
                                          <span class="identifier">us_dst_traits