MutableCollection

extension MutableCollection

extension MutableCollection where Self: BidirectionalCollection

extension MutableCollection where Self: RandomAccessCollection

• rotate(shiftingToStart:)

  Rotates the elements of the collection so that the element at middle ends up first.

  Complexity

  O(n)

  Declaration

  @discardableResult
  public mutating mutating func rotate(shiftingToStart middle: Index) -> Index

  Return Value

  The new index of the element that was first pre-rotation.

Available where `Self`: `BidirectionalCollection`

• rotate(shiftingToStart:)

  Rotates the elements of the collection so that the element at middle ends up first.

  Complexity

  O(n)

  Declaration

  @discardableResult
  public mutating mutating func rotate(shiftingToStart middle: Index) -> Index

  Return Value

  The new index of the element that was first pre-rotation.

Available where `Self`: `RandomAccessCollection`

• rotateRandomAccess(shiftingToStart:)

  Rotates the elements of the collection so that the element at middle ends up first.

  Complexity

  O(n)

  Declaration

  @discardableResult
  public mutating func rotateRandomAccess(
    shiftingToStart middle: Index
  ) -> Index

  Return Value

  The new index of the element that was first pre-rotation.