rust/tests/ui/mut-function-arguments.rs
2024-02-16 20:02:50 +00:00

20 lines
260 B
Rust

//@ run-pass
fn f(mut y: Box<isize>) {
*y = 5;
assert_eq!(*y, 5);
}
fn g() {
let frob = |mut q: Box<isize>| { *q = 2; assert_eq!(*q, 2); };
let w = Box::new(37);
frob(w);
}
pub fn main() {
let z = Box::new(17);
f(z);
g();
}