e it's
        the type <a class="link" href="integral_constant.html" title="integral_constant">false_type</a>;
      </p>
<p>
        <span class="bold"><strong>Examples:</strong></span>
      </p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">using</span> <span class="identifier">difference_t</span> <span class="special">=</span> <s