Returns a code that can be used to identify an object in a hashing structure.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
- Core Foundation
A CFType object to examine.
An integer of type
CFHash that represents a hashing value for
Two objects that are equal (as determined by the
CFEqual function) have the same hashing value. However, the converse is not true: two objects with the same hashing value might not be equal. That is, hashing values are not necessarily unique.
The hashing value for an object might change from release to release or from platform to platform.