# reverse(_:) Reverses a vector of single-precision values in-place. ``` static func reverse(_ vector: inout V) where V : AccelerateMutableBuffer, V.Element == Float ``` ## Parameters `vector` The vector that the function reverses. ## Discussion The single- and double-precision [`reverse(_:)`](/documentation/Accelerate/vDSP/reverse(_:)-3aq38) functions reverse the elements of an array. The following code reverses the elements in the array `values`: ```swift var values: [Float] = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0] vDSP.reverse(&values) // Prints "[0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0]". print(values) ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)