 <tr>
  <td>Expansion Statements</td>
  <td><a href="https://wg21.link/P1306">P1306R5</a></td>
  <td class="none" align="center">No</td>
  </tr>
  <tr>
   <td>constexpr virtual inheritance</td>
   <td><a href="https://wg21.link/P3533">P3533R2</a></td>
   <td class="none" align="center">No</td>
  </tr>
  <tr>
   <td>Preprocessing is never undefined</td>
   <td><a href="https://wg21.link/P2843">P2843R3</a></td>
   <td class="none" align="center">No</td>
  </tr>
</table>
</details>

<h2 id="cxx23">C++23 implem