Returns the number of bytes used by a CFNumber object to store its value.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
- Core Foundation
The CFNumber object to examine.
The size in bytes of the value contained in
Because a CFNumber object might store a value using a type different from that of the original value with which it was created, this function may return a size different from the size of the original value's type.