[Bug c++/110195] defaulted constructor does not respect the private accessor

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110195

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note clang accepts Single{} where Single is an empty class also before C++20
...