Re: rounding integers

On 21 May 2023 13:00:30 BST, Dan Ackroyd <Danack@basereality.com> wrote: >On Sun, 21 May 2023 at 06:16, Marc <marc@mabe.berlin> wrote: >> >> Do you think this could be an acceptable BC-break > >No. Suggesting changing a 30 year old maths operations is a huge BC break. > >> or should this be a different function? > >Just make your own that does precisely what you want... I agree on the first point, but disagree on the second. It's far too late to change round() itself, but the lack of built-in functions for converting to int in a controlled way is frustrating, particularly as the fashion moves towards stronger typing in general. On the surface, it sounds like a trivial operation, but there's a lot of edge cases to think about (limits of FP precision, negatives including negative zero, etc), and shipping a robust implementation of int_round, int_floor and int_ceil in core would save everyone having to rediscover them the hard way. Regards, -- Rowan Tommins [IMSoP]