# init(unsafeUninitializedShape:initializingWith:) Creates a shaped array from a shape and a closure that initializes its memory. ``` init(unsafeUninitializedShape shape: [Int], initializingWith initializer: (inout UnsafeMutableBufferPointer, [Int]) throws -> Void) rethrows ``` ## Parameters `shape` An integer array. Each element represents the size of the shaped array’s corresponding dimension. `initializer` A closure you provide that initializes the shaped array’s underlying memory. The initializer calls your closure with a pointer to the memory and an array of strides that correspond to the shaped array’s dimensions. ## Discussion --- 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)