),</span> 
                                              <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-14"</span><span class="special">),</span>
                                              <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">closed</span><span class="special">());</span>

    <span class="identifier">interval_set</span><span class="special">&lt;</span><span class="identifier">date</s