omputeroutput"><span class="identifier">unused_type</span></code>,
                      the effect is the same as specifying a signature of <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span></code>
                      which is also equivalent to <code class="computeroutput"><span class="identifier">unused_type</span><span class="special">()</span></code>
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                    