ng non-encodable string literals ill-formed</td>
  <td><a href="https://wg21.link/P1854R4">P1854R4</a> (<a href="#dr">DR</a>)</td>
  <td class="full" align="center">Clang 14</td>
 </tr>
 <tr>
  <td>Unevaluated strings</td>
  <td><a href="https://wg21.link/P2361R6">P2361R6</a></td>
  <td class="full" align="center">Clang 18</td>
 </tr>
 <tr>
  <td>Add @, $, and ` to the basic character set</td>
  <td><a href="https://wg21.link/P2558R2">P2558R2</a></td>
  <td class="full" align="center">Yes</td>
 </tr>
 <tr>
