[Bug c++/89596] [8/9 regression] Multiple templated conversion operators result in compilation error

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89596

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Valentine from comment #3)
> I'm experiencing a very similar problem. Is that a problem with gcc 8 and
> later?

Yes, as stated in the summary and comment 0.