ial">)</span><span class="special">;</span>
    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">gregorian</span><span class="special">::</span><span class="identifier">date</span> <a name="boost.icl.operator--_idm35607"></a><span class="keyword">operator</span><span class="special">--</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">gregorian</span><span class="special">::</span><span