[rustc.git] / src / test / ui / issues / issue-49579.rs

// check-pass

fn fibs(n: u32) -> impl Iterator<Item=u128> {
    (0 .. n)
    .scan((0, 1), |st, _| {
        *st = (st.1, st.0 + st.1);
        Some(*st)
    })
    .map(&|(f, _)| f)
}

fn main() {
    println!("{:?}", fibs(10).collect::<Vec<_>>());
}
Commit	Line	Data
60c5eb7d	1	// check-pass
b7449926	2
b7449926 XL	3	fn fibs(n: u32) -> impl Iterator<Item=u128> {
	4	(0 .. n)
	5	.scan((0, 1), \|st, _\| {
	6	*st = (st.1, st.0 + st.1);
	7	Some(*st)
1a4d82fc	8	})
b7449926	9	.map(&\|(f, _)\| f)
970d7e83 LB	10	}
	11
	12	fn main() {
b7449926	13	println!("{:?}", fibs(10).collect::<Vec<_>>());
223e47cc	14	}