How do I create an array of tuples?

Question

I'm trying to create an array of tuples in Swift, but having great difficulty:

var fun: (num1: Int, num2: Int)[] = (num1: Int, num2: Int)[]()

The above causes a compiler error.

Why's that wrong? The following works correctly:

var foo: Int[] = Int[]()

Answer 1

You can do this, just your assignment is overly complicated:

var tupleArray: [(num1: Int, num2: Int)] = [ (21, 23) ]

or to make an empty one:

var tupleArray: [(num1: Int, num2: Int)] = []
tupleArray += (1, 2)
println(tupleArray[0].num1)    // prints 1

Answer 2

Not sure about earlier versions of Swift, but this works in Swift 3 when you want to provide initial values:

var values: [(num1: Int, num2: Int)] = {
    var values = [(num1: Int, num2: Int)]()
    for i in 0..<10 {
        values.append((num1: 0, num2: 0))
    }
    return values
}()