O C++ standards:</p>

<table width="689" border="1" cellspacing="0">
 <tr>
  <th>Language Standard</th>
  <th>Flag</th>
  <th>Available in Clang?</th>
 </tr>
 <tr>
  <td><a href="#cxx26">C++2c</a></td>
  <td><tt>-std=c++2c</tt></td>
  <td class="partial" align="center">Partial</td>
 </tr>
<tr>
  <td><a href="#cxx23">C++23</a></td>
  <td><tt>-std=c++23</tt></td>
  <td class="partial" align="center">Partial</td>
 </tr>
 <tr>
  <td><a href="#cxx20">C++20</a></td>
  <td><tt>-std=c++20</tt></td>
  <td class="par