class="computeroutput"><span class="char">'-'</span></code>)
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span><span class="special">&lt;&gt;</span></code>
                  </p>
                </td>
<td>
                  <p>
                    Alternative operator (<code class="computeroutput"><span class="char">'|'</