e</span> <span class="special">&amp;</span> x<span class="special">)</span><span class="special">;</span>
    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">posix_time</span><span class="special">::</span><span class="identifier">time_duration</span> 
    <a name="boost.icl.operator_idm45366785527904"></a><span class="keyword">operator</span><span class="special">++</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::