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Intriguing, what would be the purpose of such owning references compared to just passing ownership? Is that to have a way to reliably avoid memcopying large objects when passing them by value?


> 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.


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




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