On Saturday, 4 September 2021 at 23:57:09 UTC, jfondren wrote:
You're returning a copy of a slice, so if this compiled nothing useful would happen anyway. This works if `whatever()` returns `ref dstring` instead, with no other changes. Search https://dlang.org/spec/function.html for 'lvalue' and this pops right up.
At first glance it seems a bit counter-intuitive but yes, you are right, thanks for the link jfronden :)
