struct Point {
  x: f64,
  y: f64
}

fn display_struct(s: &Point)
{
  println!("s.x: {}; s.y: {}", s.x, s.y);
}

fn main()
{
  let mut s = Point {x: 5.0, y: 5.0};

  display_struct(&mut s);
  s.x = 2.0;
  display_struct(&mut s);
}