[Bug c++/102104] parameter packs not expanded with '...' for operator conversions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102104

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppalka at gcc dot gnu.org
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-09-29
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
We also reject the following, with a different error message:

template<typename T, typename... Bases>
struct variadic: private Bases... {
    // error: expansion pattern ‘T’ contains no parameter packs
    using T::operator typename Bases::target_type...;
};