mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 02:33:55 +00:00
19 lines
456 B
Rust
19 lines
456 B
Rust
// run-pass
|
|
|
|
fn test_generic<T: Clone, F>(expected: Box<T>, eq: F) where F: FnOnce(Box<T>, Box<T>) -> bool {
|
|
let actual: Box<T> = match true {
|
|
true => { expected.clone() },
|
|
_ => panic!("wat")
|
|
};
|
|
assert!(eq(expected, actual));
|
|
}
|
|
|
|
fn test_box() {
|
|
fn compare_box(b1: Box<bool>, b2: Box<bool>) -> bool {
|
|
return *b1 == *b2;
|
|
}
|
|
test_generic::<bool, _>(Box::new(true), compare_box);
|
|
}
|
|
|
|
pub fn main() { test_box(); }
|