<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/84064>84064</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Clang error: coroutine member function with operator new in promise_type 
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

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

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

<pre>
    Hello,

the following code is accepted by g++ and MSVC, but rejected by Clang:

https://compiler-explorer.com/z/hG58nq7TE (lambda)
https://compiler-explorer.com/z/7WM7eP3h7 (struct and coroutine member function)

Without the `This` parameter for `operator new` and passing another parameter, the code is accepted by Clang but rejected by g++ and MSVC:

https://compiler-explorer.com/z/dnEhsj6hP

With my reading of http://eel.is/c++draft/dcl.fct.def.coroutine#4 and http://eel.is/c++draft/dcl.fct.def.coroutine#9.1 Clang is wrong in both cases. It should accept the first and second example but reject the third.
</pre>
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