https://issues.dlang.org/show_bug.cgi?id=22519
--- Comment #3 from Dennis <dkor...@live.nl> --- (In reply to Stanislav Blinov from comment #2) > How does this interact with -preview=rvaluerefparam ? I thought rvaluerefparam was syntactic sugar for creating a local variable just before the function call and passing that to the function parameter, so it should work just fine. I also agree that it should be the concern of the rvaluerefparam implementation, especially since it's not in the language yet and the DIP for it hasn't even reached draft review. --