             <code class="computeroutput"><span class="identifier">N</span></code>
                    </p>
                  </td>
<td>
                    <p>
                      An <a href="http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html" target="_top">MPL
                      Integral Constant</a>
                    </p>
                  </td>
<td>
                    <p>
                      Index of element
                    </p>
                  </td>
</tr>
</tbody>
</tabl