></tr>
    <tr><td class="paramname">else_</td><td>A function called as <code>eval(else_)</code> if <code>cond</code> is false-valued.</td></tr>
  </table>
  </dd>
</dl>
<h2><a class="anchor" id="autotoc_md216"></a>
Example</h2>
<div class="fragment"><div class="line"><span class="comment">// Copyright Louis Dionne 2013-2017</span></div>
<div class="line"><span class="comment">// Distributed under the Boost Software License, Version 1.0.</span></div>
<div class="line"><span class="comment">// (See accompany