// run-pass | |
// Test that `&T` and `&mut T` implement `Deref<T>` | |
use std::ops::Deref; | |
fn deref<U:Copy,T:Deref<Target=U>>(t: T) -> U { | |
*t | |
} | |
fn main() { | |
let x: isize = 3; | |
let y = deref(&x); | |
assert_eq!(y, 3); | |
let mut x: isize = 4; | |
let y = deref(&mut x); | |
assert_eq!(y, 4); | |
} |