[swift-evolution] Feature proposal: Range operator with step
dabrahams at apple.com
Tue Apr 5 18:22:56 CDT 2016
on Tue Apr 05 2016, Erica Sadun <swift-evolution at swift.org> wrote:
>> On Apr 5, 2016, at 4:17 PM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
>> on Tue Apr 05 2016, Erica Sadun <swift-evolution at swift.org> wrote:
>>> On Apr 5, 2016, at 1:54 PM, Dave Abrahams
>>> <dabrahams at apple.com> wrote:
>>> IMO this:
>>> is better than
>>> stride(from: 0, to: -10, by: -1)
>>> What do you think?
>>> The latter better reflects an author's actual intent. The former depends on
>>> implementation details, which can be hazy, especially, around the edge cases. It
>>> is quicker to read, understand, and verify that the latter is what is
>> Except that there seems to be some confusion over what "to:" means, right?
> obviously (0..<-10).by(-2) would be best.
I don't think that's obvious at all, because 0 ≮ 10
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