Ha, yes, clearly. On Tue, Apr 5, 2016 at 4:00 PM Dave Abrahams via swift-evolution < swift-evolution@swift.org> wrote:
> > on Tue Apr 05 2016, Xiaodi Wu <swift-evolution@swift.org> wrote: > > > Certainly, for integer literals and strides of -1. > > > > I meant more generally that removal of stride(...) will eliminate the > > possibility of striding to but not through arbitrary half-open intervals > (a, b], > > where a < b, by a negative increment, because there is no such thing as > `a>..b` > > to express such an interval as a Swift range. > > That would clearly be > > a<..b > > if it was needed, neh? > > > > > Of course, all such cases can be handled by adjusting the endpoint and > using a > > closed range instead, but the same can be said for all half-open ranges. > > > > On Tue, Apr 5, 2016 at 2:54 PM Dave Abrahams > > <dabrah...@apple.com> wrote: > > > > on Tue Apr 05 2016, Xiaodi Wu <xiaodi.wu-AT-gmail.com> wrote: > > > > > On Mon, Apr 4, 2016 at 1:22 PM, Dave Abrahams > > <dabrah...@apple.com> wrote: > > >> > > >> on Sat Apr 02 2016, Xiaodi Wu <xiaodi.wu-AT-gmail.com> wrote: > > >> > > >>> [snip] > > >>> > > >>> Not included: > > >>> 1. I know Ranges are in flux, so I've held off on extending > Range with > > >>> a striding(by:) method in this proof-of-concept. > > >> > > >> They're not in flux, except for not having been reviewed yet; > they are > > >> settled in the swift-3-indexing-model branch. > > > > > > Did not know that. Will have to study what's there in more detail. > > > > > >>> 2. No attempt at the suggested stride(from:to:steps:) quite yet. > > >> > > >> #1 and #2 are mutually exclusive; we prefer #1 as it removes > questions > > >> about the meaning of "to" or "through." > > > > > > I wasn't aware that was the thinking. Limiting strides to > > > `striding(by:)` removes the ability to express `stride(from: 0, to: > > > -10, by: -1)` > > > > IMO this: > > > > (-9...0).reverse() > > > > is better than > > > > stride(from: 0, to: -10, by: -1) > > > > What do you think? > > > > -- > > Dave > > > > _______________________________________________ > > swift-evolution mailing list > > swift-evolution@swift.org > > https://lists.swift.org/mailman/listinfo/swift-evolution > > -- > Dave > > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution >
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