# withUnsafeMutableShapedBufferPointer(_:) Provides read-write access of the shaped array’s underlying memory to a closure. ``` mutating func withUnsafeMutableShapedBufferPointer(_ body: (inout UnsafeMutableBufferPointer, [Int], [Int]) throws -> R) rethrows -> R ``` ## Parameters `body` A closure that accesses a shaped array’s underlying memory. ## Discussion The method returns the value your closure returns, if applicable. --- 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)