Type Casting and Existential Types

Topics

Integer Value Casting

• numericCast(_:)

Closure Casting

• withoutActuallyEscaping(_:do:)

Instance Casting

• unsafeDowncast(_:to:)
• unsafeBitCast(_:to:)

Existential Types

• AnyObject
• AnyClass

Comparing Identity

• ===(_:_:)
• !==(_:_:)

Void Type

• Void

See Also

Programming Tasks

• Input and Output
• Debugging and Reflection
• Macros
• Concurrency
• Key-Path Expressions
• Manual Memory Management
• C Interoperability
• Operator Declarations