On Thursday, 5 September 2019 at 10:47:56 UTC, Simen Kjærås wrote: > https://dlang.org/library/std/range/retro.html Yeah, that worked. Thanks. :-) > Don't worry about asking questions OK. Then here's the next one: > Point[long] q; > > q[1] = Point(3); Leads to: >test.d(7): Error: cannot modify struct q[1L] Point with >immutable members