<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/57489>57489</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Infinite load factor + `rehash(0)` leaves `unordered_*` with 0 buckets
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

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

<pre>
    https://godbolt.org/z/sTKPEWMjK

Chances are, this isn't the correct behavior. A non-empty container should _always_ have at least one bucket and not 0.
</pre>
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