How to pass a class by (const) reference to C++

[Tim]

On Wednesday, 15 December 2021 at 22:46:01 UTC, Jan wrote:
> Btw. should I report this issue somewhere? Is far as I see this 
> isn't logged yet:
> <https://issues.dlang.org/buglist.cgi?quicksearch=c%2B%2B%20extern%20static>

Yes, it should be reported.