div><div class="line"><span class="keywordtype">int</span> main() { }</div></div><!-- fragment --></li>
</ol>
<h2>Conversion from any <code>Foldable</code> </h2>
<p>A MPL list can be created from any <code>Foldable</code>. More precisely, for a <code>Foldable</code> <code>xs</code> whose linearization is <code>[x1, ..., xn]</code>, </p><div class="fragment"><div class="line">to&lt;ext::boost::mpl::list_tag&gt;(xs) == mpl::list&lt;t1, ..., tn&gt;{}</div></div><!-- fragment --><p> where <code>tk</code> is the