d class="full" align="center">Clang 3.0</td>
    </tr>
    <tr>
      <td>Explicit virtual overrides</td>
      <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">N2928</a>
      <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a>
      <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">N3272</a></td>
      <td class="full" align="center">Clang 3.0</td>
    </tr>
    <tr>
      <td>Minimal support for garbage col