rust/tests/ui/issues/issue-4335.rs
2023-01-11 09:32:08 +00:00

14 lines
226 B
Rust

#![feature(fn_traits)]
fn id<T>(t: T) -> T { t }
fn f<'r, T>(v: &'r T) -> Box<dyn FnMut() -> T + 'r> {
id(Box::new(|| *v))
//~^ ERROR E0507
}
fn main() {
let v = &5;
println!("{}", f(v).call_mut(()));
}