<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/103873>103873</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            LWG3257: Missing feature testing macro update from P0858
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc++,
            c++20,
            lwg-issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          ldionne
      </td>
    </tr>
</table>

<pre>
    **Link:** https://wg21.link/LWG3257
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJxUkEGrnTAQhX9NspEryYxRs8jC14fdvEJ3XUedq2mjuSTxXvrvi1ZaHgTCdxjOmTM2JTdvRIapN6beud3zEqLxkwvbRnwI02_DoGPQfbjtF8PuLxRLzo90Ys-gf80gS38MQP_x4yuCavhkcNKoLScjG8AaW1UjX0yDtRJAwwC2rUUtdIM4SkVKNRPqEbgzIKASrawkgJZNKZXUON2xBt1KoYlVglbrfOn9cy1DnLlLaScjBbYNcm8H8uksBODdMDJ4Ox8w-MIALgbxT_Gv-XZaHIp659EczrdhnxOrhHcpp_9Z2WVP5mrJsCu-uZTcNhd3snmPVGRK-eDVjjEU-2OymYp7DGvxXbSq5Xv05vP5ZpeXfSjHsDLoj6Druz1i-EljZtCf6yUG_VXyaeBPAAAA___9RYNo">