[swift-evolution] About the PermutationGenerator

[Dave Abrahams]

> On Dec 31, 2015, at 9:05 AM, Erica Sadun via swift-evolution <swift-evolution at swift.org> wrote:
> 
> It does seem that in Swift the concepts of collection, sequence, permutation, stream, etc are a bit muddled.

This is a pretty vague critique.  Do you have specifics, and suggestions that address them?

> 
> -- E
> 
> 
>> On Dec 31, 2015, at 6:51 AM, Tino Heth via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>>> Those are collections.  Collections can be iterated over multiple times.
>> Speaking of the Fibonacci-numbers:
>> Sure we can write an algorithm that iterates over them several times — it just won't ever finish the first iteration ;-)
>> (only nitpicking — I just couldn't resist)
>> 
>> Happy new year!
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-Dave