[Bug c++/98639] GCC accepts cast from Base to Derived in C++20 mode

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98639

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r278939 indeed.  But note that
  return Derived{b};
is also accepted in C++17.

So I think it's not a gcc bug, but maybe we need to clarify with the CWG.