box-o-sand/rustbyexample/conversion.d/string.rs

17 lines
297 B
Rust

use std::fmt;
struct Circle {
radius: i32,
}
impl fmt::Display for Circle {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Circle of radius {}", self.radius)
}
}
fn main() {
let circle = Circle { radius: 6 };
println!("{}", circle.to_string());
}