<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/103271>103271</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            LWG2439: `unique_copy()` sometimes can't fall back to reading its output
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc++,
            c++17,
            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/LWG2439
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJxUkEGP2yAQhX_NcEGxYLAhHDhku3Ive--xwoAdutikBnaVf1_FjVqthITe0-jN-8aWEpctBAPDCwyvxLZ6zbtJPuZtC2TK_m4AL4CXt7i9g7j8FfRa660ccgQcPxfkXXoM4Pj24zv2QhNvhNdCWxIMVygGyXWvyNVo5FOQTs9CiVkqJjWfz0o7nL1E6zmJBhn27MwFHzii7ILgXvUSrZXO87ODnoXVxtSl9LF2eV9ILKUFw5lAxUmyU0jlAEJMcXKAL8dDwG-A-NRc_XPS53I6Ih7O8Ep280g-TW0p0LMUSy3_d9VYUzBPShAXCpK1Lf5u4afLtzvgGVCDZLTkNdS4hkKd3QBVpbNNiU7WvdOa6R6sj9tCYy00t3prlbQ9ma-HXWK9tqlzeQUcHxWe3-m251_BVcDxKF4Axyf-h8E_AQAA___mZoy1">