# replaceObjects(in:with:count:) Replaces the objects in the receiving mutable ordered set at the range with the specified number of objects from a given C array. ``` func replaceObjects(in range: NSRange, with objects: UnsafePointer?, count: Int) ``` ## Parameters `range` The range of the objects to replace. `objects` A C array of objects. `count` The number of values from the objects C array to insert in place of the objects in `range`. This number will be the count of the new array—it must not be negative or greater than the number of elements in objects. ## Discussion Elements are added to the new array in the same order they appear in objects, up to but not including index count. --- 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)