mirror of
https://github.com/rust-lang/rust
synced 2024-09-06 01:11:17 +00:00
22 lines
405 B
Rust
22 lines
405 B
Rust
//@ run-pass
|
|
trait Stringify {
|
|
fn to_string(&self) -> String;
|
|
}
|
|
|
|
impl Stringify for u32 {
|
|
fn to_string(&self) -> String { format!("u32: {}", *self) }
|
|
}
|
|
|
|
impl Stringify for f32 {
|
|
fn to_string(&self) -> String { format!("f32: {}", *self) }
|
|
}
|
|
|
|
fn print<T: Stringify>(x: T) -> String {
|
|
x.to_string()
|
|
}
|
|
|
|
fn main() {
|
|
assert_eq!(&print(5), "u32: 5");
|
|
assert_eq!(&print(5.0), "f32: 5");
|
|
}
|