Re: slicing in Swift
Re: slicing in Swift
- Subject: Re: slicing in Swift
- From: Jonathan Hull <email@hidden>
- Date: Tue, 06 Sep 2016 17:42:42 -0700
You can explicitly create an array with the slice by using ‘Array(slice)’. Honestly, I am not sure of the actual value of slices because of issues like this. I would rather have those methods return an Array which is some sort of copy on write slice internally.
Thanks,
Jon
> On Sep 6, 2016, at 5:33 PM, Gerriet M. Denkmann <email@hidden> wrote:
>
> var numbers: [UInt64] = …
>
> func numbers( upTo nbr: Int ) -> [UInt64]
> {
> let slice = numbers[ 0 ..< nbr ]
> return slice
> // Cannot convert return expression of type ‘ArraySlice<UInt64>' to return type '[UInt64]'
>
> // workaound:
> var outCopy:[UInt64] = []
> for i in 0 ..< nbr { outCopy.append( numbers[i] ) }
> return outCopy
> }
>
> Any better way to do this?
>
> Gerriet.
>
>
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