mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-26 00:34:06 +00:00
19 lines
383 B
Rust
19 lines
383 B
Rust
//@ run-pass
|
|
// Tests that the re-exports of `FnOnce` et al from the prelude work.
|
|
|
|
//@ pretty-expanded FIXME #23616
|
|
|
|
fn main() {
|
|
let task: Box<dyn Fn(isize) -> isize> = Box::new(|x| x);
|
|
task(0);
|
|
|
|
let mut task: Box<dyn FnMut(isize) -> isize> = Box::new(|x| x);
|
|
task(0);
|
|
|
|
call(|x| x, 22);
|
|
}
|
|
|
|
fn call<F:FnOnce(isize) -> isize>(f: F, x: isize) -> isize {
|
|
f(x)
|
|
}
|