<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/133439>133439</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            `-Wextra-semi` should warn about commas at the end of enumerator lists
        </td>
    </tr>

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

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

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

<pre>
    For stylistic reasons, we want it to be consistently in the code that enumerators do not have an extra comma at the end.

So he should warn about the extra `,` here, e.g.,:
```cpp
enum MyEnum
{
        A,
        B,
};
```

[`-Wc++98-compat-pedantic`](https://clang.llvm.org/docs/DiagnosticsReference.html#id155) contains a warning [for this](https://godbolt.org/z/faq7Wqnob):
```
warning: commas at the end of enumerator lists are incompatible with C++98
```

But there exists no way to say I only want the warning for the unnecessary comma, but not the other warnings. So a warning `-Wc++98-compat-enumerator-semi` would be nice, which is then also included in `-Wextra-semi`.
</pre>
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