ss="identifier">month</span><span class="special">;</span>
  <span class="identifier">DayType</span> <span class="identifier">day</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp54783568"></a><h2>Description</h2>
<div class="refsect2">
<a name="idp54783776"></a><h3>
<a name="boost.date_time.year_month_day_baseconstruct-copy-destruct"></a><code class="computeroutput">year_month_day_base</code> 
        public
   