<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/149633>149633</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Pre-C23 check in for declaration is incorrect
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          Halalaluyafail3
      </td>
    </tr>
</table>

<pre>
    Clang incorrectly rejects the following program pre-C23 with -pedantic-errors:
```c
for(_Static_assert(1,"");0;);
```
This is valid, yet Clang rejects it anyways. Additionally, Clang incorrectly allows the following:
```c
for (enum fred { jim, sheila = 10 } i = jim; i < sheila; i++);
```
This is invalid and is mentioned specifically in [DR277](https://www.open-std.org/jtc1/sc22/wg14/issues/c99/issue0277.html).
</pre>
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