Destroys a class and its associated metaclass.
- iOS 2.0+
- macOS 10.5+
- tvOS 9.0+
- watchOS 2.0+
- Objective-C Runtime
The class to be destroyed. This class must have been allocated using
_allocate Class Pair(_: _: _:)
Do not call this function if instances of the
cls class or any subclass exist.