I wouldn't mind if the standard `%` operator worked like this and there would be another top-level function `mod(p, q)` that worked like `%` in C. The only times that I've ever needed the modulo operation (https://en.wikipedia.org/wiki/Modulo_operation) to behave some way on negative values it's always been the suggested remainder-of-flooring-division way.
On the other hand, there's a performance penalty (avoidable by using the other mod operation), so I can understand if not everyone agrees. And like Steve said below, then we'll need a flooring division function (or operator) as well. And a flooring `(f, r) = divmod(p, q)` too, I suppose. In any case, I'm probably +1 if a well-thought proposal is brought to the table. — Pyry > Adam Nemecek wrote: > > Would you want to make this a function? Or an operator but a different one? > >> On Mon, May 23, 2016 at 7:30 AM, Stephen Canon <sca...@apple.com> wrote: >> I’m not really sold on the `%%` spelling, but I think the operation itself >> is worth exposing. This is the remainder of a “flooring” division (as >> opposed to the C-family “truncating” division[1]). If we do provide it, we >> should also provide the accompanying divide operation. >> >> – Steve >> >> [1] there are several other ways to define division beyond these two: >> remainder is always positive, remainder is closest to zero, etc. Truncating >> and flooring division are the most common by a wide margin, however.
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