s convertible to U
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                BOOST_IS_ENUM(T)
              </p>
            </td>
<td>
              <p>
                Should evaluate to true is T is an enum
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                BOOST_IS_POLYMORPHIC(T)
              </p>
            </td>
<td>
              <p>
                Should evaluate to true if T is a polymorphic type
              </p>
            </td