On Tuesday, 23 June 2020 at 03:52:23 UTC, Jonathan M Davis wrote:
It is extremely common to wrap ranges in other ranges (and in fact, you basically have to in order to have lazy ranges). That really doesn't work very well - if at all - if you can't copy the range. It might be possible with a bunch of explicit calls to move, but that would result in range-based code in general being @system without a clean way to use @trusted
`move` isn't @system. Perhaps you are thinking of `moveEmplace`?
