Creates and returns a set containing a specified number of objects from a given C array of objects.
- iOS 2.0+
- macOS 10.0+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
A C array of objects to add to the new set. If the same object appears more than once in
objects, it is added only once to the returned set. Each object receives a
retainmessage as it is added to the set.
The number of objects from
objectsto add to the new set.
A new set containing
cnt objects from the list of objects specified by