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