Do I have to pass parameters with ref explicitly?

[Elfstone]

Thanks Ali. That's a lot of information.
I'm learning D by rewriting my hobbyist project. I guess I can 
worry about optimization later.

On Sunday, 17 April 2022 at 08:45:11 UTC, Ali Çehreli wrote:
> - Somewhat related, unlike C++, D does not allow binding 
> rvalues to 'const ref'. (This point is relevant for 'in' below.)

Yeah, I just found out about that. It seems many things are done 
differently with D, but so far the code turns out to be a lot 
less clumsy than the C++ version. It's a good sign.