ial">&lt;</span><span class="identifier">S</span><span class="special">&gt;</span></code>
                  </p>
                </td>
<td>
                  <p>
                    Metafunction that returns the underlying char type of a string
                    type, <code class="computeroutput"><span class="identifier">S</span></code>.
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    <code class="computeroutput"><span class="identifier">boost</span><