This sounds like an interesting idea. The best way to promote this would be to 
make a Swift package first, so that Swift users can use it right away and we 
can see how it works in practice. If it has sufficient merit and general 
applicability, then it makes sense to propose including it in the standard 
library. There are tradeoffs to increasing the API surface area of the standard 
library, so having experience with a SPM package first can help drive 
discussion.


> On Jul 28, 2017, at 5:54 AM, Omar Charif via swift-evolution 
> <swift-evolution@swift.org> wrote:
> 
> Hi,
> 
> I wonder whether there is already a way in Swift to compare a string against 
> a large string array quickly without using the traditional ways of 
> comparison. 
> 
> Say we have ["a", "b", "c", "d"] and we would like to find whether this array 
> contains "a", then we decide to check if we have "b" in that same array. 
> Don't you think there is a way to represent the array in a different way and 
> make this comparison a lot quicker ?
> 
> I know there are recurrent neural networks etc ... I am talking here about 
> solution without learning anything, just representing the array differently 
> so we can minimize that O(N).
> 
> I have developed an algorithm and it is doing pretty well so far and I wonder 
> whether it would be accepted so I came to propose and see if this is 
> interesting from your perspective.
> 
> I developed a Javascript version here 
> https://omarshariffathi.github.io/quickhint/ 
> <https://omarshariffathi.github.io/quickhint/>
> 
> If you think this is welcome in Swift Foundation I am ready for a pull 
> request.
> Thanks for reading.
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> swift-evolution@swift.org
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