 factor attributes, in other platforms
            this option improves performance due to improved memory locality. Default:
            <code class="computeroutput"><span class="identifier">optimize_size</span><span class="special">&lt;</span><span class="keyword">false</span><span class="special">&gt;</span></code>.
          </li>
</ul></div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="intrusive.avl_set_multiset.set_multiset_containers"></a><a class="link" h