use std::fmt::Debug;

#[derive(Debug)]
struct Circle {
    radius:f64,
}
#[derive(Debug)]
struct Square {
    side:f64,
}
trait Shape {
    fn area(&self)->f64;
}
impl Shape for Square{

    fn area(&self)->f64{
        self.side * self.side
    }
}
impl Shape for Circle{

    fn area(&self)->f64{
        self.radius * self.radius * std::f64::consts::PI
    }
}
//fn bilgi_ver(shape:impl Shape + Debug){
//fn bilgi_ver<T:Shape+ Debug>(shape:T){
fn bilgi_ver<T>(shape:T)
where T:Shape + Debug{
    println!("{:?}",shape);
    println!("Alan : {}",shape.area())
}

fn main() {
    let c = Circle{radius:3.0};
    bilgi_ver(c);
    let s= Square{side:4.0};
    bilgi_ver(s);


}