Is there any structures for shifting a collection in the Library?

Using Swift
1

Hello. I have an array
[0, 1, 2, 3, 4, 5, 6, 7, 8]. And I want to shift it to 4 elements right [0, 1, 2, 3, 4, 5, 6, 7, 8] * (-> 4) to get [5, 6, 7, 8, 0, 1, 2, 3, 4]. Does Standard Library suggest any tools to do it?
Tnx

2

I don't think there's anything in the Standard Library, but these pages may help you:

1 Like
3

There's also a sample implementation of a rotate algorithm in the Swift test suite.

2 Likes
4

Is this implemented in current version Xcode?

5

Thanks rotate(shiftingToStart: 4) is desired method.
var a = [0, 1, 2, 3, 4, 5, 6, 7, 8]
a.rotate(shiftingToStart: 4)
print(a) // [4, 5, 6, 7, 8, 0, 1, 2, 3]
.