f <code class="computeroutput"><span class="identifier">T</span>
                <span class="identifier">t</span><span class="special">,</span>
                <span class="identifier">u</span><span class="special">;</span>
                <span class="identifier">t</span> <span class="special">=</span>
                <span class="identifier">u</span></code> can not throw
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                BOOST_HAS_VIRTUAL_DESTRUCTOR(T)
              </