[kibwen]

> Is that to have a way to reliably avoid memcopying large objects when passing them by value?

I believe so, yes. Currently the only way to transfer ownership is by-value, and LLVM might optimize away the memcpy, but also it might not.

[codedokode]

I wonder what is the case when you cannot optimize away memcpy, but can work around it with an "owning reference"?