ss="special">::</span><span class="identifier">day_of_week_type</span> <a name="boost.date_time.first_kday_before.day_of_week_type"></a><span class="identifier">day_of_week_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">date_type</span><span class="special">::</span><span class="identifier">duration_type</span>        <a name="boost.date_time.first_kday_before.duration_type"></a><span class="identifier">duration_type</span><span class="special">;</s