r &lt;boost/date_time/year_month_day.hpp&gt;">boost/date_time/year_month_day.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> YearType<span class="special">,</span> <span class="keyword">typename</span> MonthType<span class="special">,</span> <span class="keyword">typename</span> DayType<span class="special">&gt;</span> 
<span class="keyword">struct</span> <a class="link" href="year_month_day_base.html" title="Struct template yea