# add(_:count:) Appends the given number of objects from a given C array to the end of the mutable ordered set. ``` func add(_ objects: UnsafePointer?, count: Int) ``` ## Parameters `objects` A C array of objects. `count` The number of values from the objects C array to append to the mutable ordered set. This number will be the count of the new array—it must not be negative or greater than the number of elements in objects. --- 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)