[swift-evolution] Feature proposal: Range operator with step

[Erica Sadun]

> On Apr 5, 2016, at 1:54 PM, Dave Abrahams <dabrahams at apple.com> wrote:
> IMO this:
> 
>  (-9...0).reverse()
> 
> 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 meant.

-- E

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