# next() Returns a value from a uniform, independent distribution of binary data. ``` mutating func next() -> T where T : FixedWidthInteger, T : UnsignedInteger ``` ## Return Value A random value of `T`. Bits are randomly distributed so that every value of `T` is equally likely to be returned. ## Discussion Use this method when you need random binary data to generate another value. If you need an integer value within a specific range, use the static `random(in:using:)` method on that integer type instead of this method. --- 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)