---
title: state
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnns/randomgenerator/state
---

# state

The state of the random number generator.

## Declaration

```swift
var state: BNNS.RandomGeneratorState { get set }
```

## Discussion

Discussion Use the random number generator’s state property to save and restore the generator. The following code creates a random number generator and captures its initial state. The code calls allocate(randomUniformUsing:range:shape:batchSize:) twice to populate the arrays a and b with different random values. Before allocating the array c with random values, the code resets the generator’s state to create identical random values in arrays a and c. guard     let randomGenerator = BNNS.RandomGenerator(         method: .aesCtr,         seed: 1234) else {         return     }

let state = randomGenerator.state

let a = BNNSNDArrayDescriptor.allocate(     randomUniformUsing: randomGenerator,     range: Int16(-10)...Int16(10),     shape: [16])!.makeArray(of: Int16.self)!

let b = BNNSNDArrayDescriptor.allocate(     randomUniformUsing: randomGenerator,     range: Int16(-10)...Int16(10),     shape: [16])!.makeArray(of: Int16.self)!

// Prints "false". print(a.elementsEqual(b))

randomGenerator.state = state

let c = BNNSNDArrayDescriptor.allocate(     randomUniformUsing: randomGenerator,     range: Int16(-10)...Int16(10),     shape: [16])!.makeArray(of: Int16.self)!

// Prints "true". print(a.elementsEqual(c))

## See Also

### Saving and Restoring a Randon Generator’s State

- [BNNS.RandomGeneratorState](accelerate/bnns/randomgeneratorstate.md)