struct S {
  x: f64,
  y: f64
}

impl S {
  fn display(&self)
  {
    println!("{} {}", self.x, self.y)
  }
}
impl S {
  fn new(v1: f64, v2: f64) -> S
  {
    S{x:v1,y:v2}
  }
}
impl S {
  fn origin() -> S
  {
    S{x:0.0,y:0.0}
  }
}

fn main()
{
  let p1 = S{x: 1.0, y: 1.0};
  let p2 = S{x: 2.5, y: 0.0};
  let p3 = S::origin();
  let p4 = S::new(3.5,1.1);

//  println!("{} {}", p1.x, p1.y);
//  println!("{} {}", p2.x, p2.y)
  p1.display();
  println!("{}", p1.x);
  p2.display();
  p3.display();
  p4.display()
}