ng"><span class="comment">// overload tables for             element containers:     interval containers:
</span><span class="identifier">T</span> <span class="keyword">operator</span> <span class="special">&amp;</span> <span class="special">(</span><span class="identifier">T</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&amp;)</span>         <span class="special">&amp;</span>  <span class="special">|</span> <span class="identi