# BNNS.RandomGenerator A random number generator. ``` class RandomGenerator ``` ## Topics ### Creating a Random Number Generator [`init?(method: BNNS.RandomGeneratorMethod, seed: UInt64?, filterParameters: BNNSFilterParameters?)`](/documentation/Accelerate/BNNS/RandomGenerator/init(method:seed:filterParameters:)) Returns a new random number generator. [`enum RandomGeneratorMethod`](/documentation/Accelerate/BNNS/RandomGeneratorMethod) Constants that describe random number generation methods. ### Saving and Restoring a Randon Generator’s State [`var state: BNNS.RandomGeneratorState`](/documentation/Accelerate/BNNS/RandomGenerator/state) The state of the random number generator. [`class RandomGeneratorState`](/documentation/Accelerate/BNNS/RandomGeneratorState) An opaque object that contains the state of a random number generator. ## See Also [`static func allocate(randomIn: ClosedRange, using: inout Generator, shape: BNNS.Shape, batchSize: Int) -> BNNSNDArrayDescriptor`](/documentation/Accelerate/BNNSNDArrayDescriptor/allocate(randomIn:using:shape:batchSize:)-3w6ig) Returns a new array descriptor that’s initialized with random values within the specified range, using the given generator as a source for randomness. [`static func allocate(randomIn: ClosedRange, using: inout Generator, shape: BNNS.Shape, batchSize: Int) -> BNNSNDArrayDescriptor`](/documentation/Accelerate/BNNSNDArrayDescriptor/allocate(randomIn:using:shape:batchSize:)-5kbi8) Returns a new array descriptor that’s initialized with random values within the specified range, using the given generator as a source for randomness. --- 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)