<span class="keyword">const</span> <span class="identifier">time_type</span> <span class="special">&amp;</span><span class="special">,</span> 
                      <span class="identifier">date_time</span><span class="special">::</span><span class="identifier">dst_flags</span> <span class="special">=</span> <span class="identifier">date_time</span><span class="special">::</span><span class="identifier">calculate</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</spa