Swift When we run the above program using playground, we get the following result: res is: 20 res is: 30 res is: 50
Protocol Composition Swift allows multiple protocols to be called at once with the help of protocol composition.
Syntax protocol<SomeProtocol, AnotherProtocol>
Example protocol stname { var name: String { get } }
protocol stage { var age: Int { get } }
struct Person: stname, stage { var name: String var age: Int }
func print(celebrator: protocol<stname, stage>) { println("\(celebrator.name) is \(celebrator.age) years old") }
let studname = Person(name: "Priya", age: 21) print(studname)
let stud = Person(name: "Rehan", age: 29) print(stud)
211