# vSswap(_:_:_:) Interchanges the elements of two vectors. ``` func vSswap(_ n: Int32, _ x: UnsafeMutablePointer, _ y: UnsafeMutablePointer) ``` ## Parameters `n` number of elements in vectors `x` and `y`; must be a multiple of 4. `x` vector with `n` elements of type `float`. `y` vector with `n` elements of type `float`. ## Discussion Each element of vector `x` is replaced by the corresponding element of `y`, and vice versa. --- 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)