allable
              Object</a>
            </li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl class="variablelist">
<dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt>
<dd><p>
                A possibly const qualified, unary <a class="link" href="../concepts/poly.html" title="Polymorphic Function Object">Polymorphic
                Function Object</a> type or reference type thereof
              </p></dd>
<dt><span cl