Swift Tutorial - Tutorialspoint

}

struct mult {

var a = sum()

var b = diff()

}

let calc = mult()

println ("Inside mult block \(calc.a.num1, calc.a.num2)")

println("Inside mult block \(calc.b.no1, calc.b.no2)")

let memcalc = mult(a: sum(num1: 300 , num2: 500 ),b: diff(no1: 300 , no2: 100 ))

println("Inside mult block \(memcalc.a.num1, memcalc.a.num2)")

println("Inside mult block \(memcalc.b.no1, memcalc.b.no2)")

extension mult {

init(x: sum, y: diff) {

let X = x.num1 + x.num2

let Y = y.no1 + y.no2

}

}

let a = sum(num1: 100 , num2: 200 )

println("Inside Sum Block:\( a.num1, a.num2)")

let b = diff(no1: 200 , no2: 100 )

println("Inside Diff Block: \(b.no1, b.no2)")

When we run the above program using playground, we get the following result:

Inside mult block (100, 200)

Inside mult block (200, 100)

Inside mult block (300, 500)

Inside mult block (300, 100)