pan></code>
        (in a context where <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">swap</span></code> is visible) is valid and non-throwing,
        inherits from <a class="link" href="integral_constant.html" title="integral_constant">true_type</a>,
        otherwise from <a class="link" href="integral_constant.html" title="integral_constant">false_type</a>.
      </p>
<p>
        <span class="bold"><strong>Compiler Compatibility:<