Operator overloading in Swift?

Question

Swift

struct Point{
  var x = 0
  var y = 0
  var z = 0
  init(_ x: Int, _ y: Int, _ z: Int){
    self.x = x
    self.y = y
    self.z = z
  }
}

let MyFirstPoint = Point(1,2,3)
let MySecondPoint = Point(2,3,4)

extension Point {
  static func + (left: Point, right: Point) -> Point {
        return Point(x: left.x + right.x, y: left.y + right.y, z: left.z + right.z)
    }
}


var ThirdPoint = MyFirstPoint + MySecondPoint

Error:
Swift Ver. 3.1.1 (Release)
Platform: Linux (x86_64)
ERROR at line 19, col 21: extraneous argument labels 'x:y:z:' in call
return Point(x: left.x + right.x, y: left. y + right.y, z: left.z + right.z)
^~~~ ~~~ ~~~

Answer 1

Everything works, I fixed only one line, namely return Point(x: left.x + right.x, y: left.y + right.y, z: left.z + right.z)
Or you can leave this line alone, then so
In swift 3, All function parameters have the same outer parameter name as the inner one, unless otherwise specified.