[Bug c++/71658] User-defined conversion operator from a wrapper class to the wrapped type does not compile.

[ulrichmutze at gmx dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71658

--- Comment #2 from Ulrich Mutze <ulrichmutze at gmx dot de> ---
Created attachment 38780
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38780&action=edit
This is a shortened version of the first attachment. It avoids a superfluous
complication.