functor"></a><span class="identifier">end_rule_functor</span><span class="special">;</span>  

  <span class="comment">// <a class="link" href="acst_dst_trait.html#idp18903776-bb">public static functions</a></span>
  <span class="keyword">static</span> <span class="identifier">day_of_week_type</span> <a class="link" href="acst_dst_trait.html#idp18903984-bb"><span class="identifier">start_day</span></a><span class="special">(</span><span class="identifier">year_type</span><span class="special">)</span><span 