A protocol that objects adopt to support fast enumeration.
SDKs
Framework
protocol NSFastEnumeration
The abstract class NSEnumerator provides a convenience implementation that uses next to return items one at a time.
func countReturns by reference a C array of objects over which the sender should iterate, and as the return value the number of objects in the array.
Required.
struct NSFastThis defines the structure used as contextual information in the NSFast protocol.
class NSEnumeratorAn abstract class whose subclasses enumerate collections of objects, such as arrays and dictionaries.
struct NSIndexAn iterator suitable for enumerating the elements of an index set.
struct NSEnumerationOptions for block enumeration operations.
struct NSSortOptions for block sorting operations.