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# AudioChannelLayout.UnsafeMutablePointer

```
struct UnsafeMutablePointer
```

## Topics

### Initializers

[`init?(UnsafeMutablePointer<AudioChannelLayout>?)`](/documentation/CoreAudioTypes/AudioChannelLayout/UnsafeMutablePointer/init(_:)-6v77t)

[`init(UnsafeMutablePointer<AudioChannelLayout>)`](/documentation/CoreAudioTypes/AudioChannelLayout/UnsafeMutablePointer/init(_:)-xfym)

### Instance Properties

[`var count: Int`](/documentation/CoreAudioTypes/AudioChannelLayout/UnsafeMutablePointer/count)

The number of `AudioChannelDescription`s

[`var unsafeMutablePointer: UnsafeMutablePointer<AudioChannelLayout>`](/documentation/CoreAudioTypes/AudioChannelLayout/UnsafeMutablePointer/unsafeMutablePointer)

[`var unsafePointer: UnsafePointer<AudioChannelLayout>`](/documentation/CoreAudioTypes/AudioChannelLayout/UnsafeMutablePointer/unsafePointer)

## Relationships

### Conforms To

[`Sequence`](/documentation/Swift/Sequence)

[`MutableCollection`](/documentation/Swift/MutableCollection)

[`BidirectionalCollection`](/documentation/Swift/BidirectionalCollection)

[`Escapable`](/documentation/Swift/Escapable)

[`Copyable`](/documentation/Swift/Copyable)

[`RandomAccessCollection`](/documentation/Swift/RandomAccessCollection)

[`Collection`](/documentation/Swift/Collection)

---

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