[swift-evolution] repeat loop enhancement

Sean Heber sean at fifthace.com
Wed Dec 9 15:33:56 CST 2015

> On Dec 9, 2015, at 3:21 PM, Tyler Cloutier <cloutiertyler at aol.com> wrote:
> Likely because 
> for 1…5 {
> }
> is the same as 
> for 2…6 or for 0…4 
> which is confusing.

Those ranges are the same length and basic math would tell you that. I don’t think it’d be that big a deal. In a learning context, you wouldn’t teach it that way anyway and the students who tried it would probably end up feeling clever.

Anyway, if Swift-for is to be modified, I’d say my desire would be for the following forms:

for (range) {}
for (thing) in (range) {}
for (thing) in (range) where (stuff) {}
for (any of the above) {} else {}

Multidimensional support also seems awesome, but I could live without it. (Well okay, I could live without any of this.. but you know what I mean. :P)


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