init(_:)

Declaration

init(_ x: AnyObject)

Parameters

• x:

  An instance of a class.

Discussion

The following example creates an example class IntegerRef and compares instances of the class using their object identifiers and the identical-to operator (===):

class IntegerRef {
    let value: Int
    init(_ value: Int) {
        self.value = value
    }
}

let x = IntegerRef(10)
let y = x

print(ObjectIdentifier(x) == ObjectIdentifier(y))
// Prints "true"
print(x === y)
// Prints "true"

let z = IntegerRef(10)
print(ObjectIdentifier(x) == ObjectIdentifier(z))
// Prints "false"
print(x === z)
// Prints "false"