<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/55474>55474</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Missing diagnostics "warning: cv qualifiers ignored for a base class"
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          fsb4000
      </td>
    </tr>
</table>

<pre>
    http://eel.is/c++draft/class.derived.general#2.sentence-2

Everything works correctly but such diagnostic would be good.

```c++
class Base { 
public:
   int base;
};

typedef const Base ConstBase;

class CDerived: public ConstBase {
public:
   int derived;
};
```

https://godbolt.org/z/1ns8Tc7Ko
</pre>
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