[swift-evolution] removeFirst, optional equiviliant

[Max Moiseev]

Hi James,

I believe this code <https://github.com/apple/swift/blob/master/stdlib/public/core/RangeReplaceableCollectionType.swift#L235> already handles empty array scenario by failing if the precondition is not met.
Or do you have something else in mind?

max

> On Jan 6, 2016, at 9:36 AM, James Campbell via swift-evolution <swift-evolution at swift.org> wrote:
> 
> If you call removeFirst and the array is empty it would be great if it was optional so it could return nil or at least it threw an error so you could handle that case.
> 
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