<!--
{
  "documentType" : "article",
  "framework" : "CoreMIDI",
  "identifier" : "/documentation/CoreMIDI/UnsafeMutableMIDIEventPacketPointer/RandomAccessCollection-Implementations",
  "metadataVersion" : "0.1.0",
  "role" : "collectionGroup",
  "title" : "RandomAccessCollection Implementations"
}
-->

# RandomAccessCollection Implementations

## Topics

### Instance Properties

[`var endIndex: Int`](/documentation/CoreMIDI/UnsafeMutableMIDIEventPacketPointer/endIndex)

[`var startIndex: Int`](/documentation/CoreMIDI/UnsafeMutableMIDIEventPacketPointer/startIndex)

---

Copyright &copy; 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)