span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">DayType</span>   <a name="boost.date_time.year_month_day_base.day_type"></a><span class="identifier">day_type</span><span class="special">;</span>  

  <span class="comment">// <a class="link" href="year_month_day_base.html#boost.date_time.year_month_day_baseconstruct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="year_month_day_base.html#idp41690400-bb"><span class="identifier">year_mont