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#![warn(clippy::reversed_empty_ranges)]
const ANSWER: i32 = 42;
const SOME_NUM: usize = 3;
fn main() {
let arr = [1, 2, 3, 4, 5];
let _ = &arr[3usize..=1usize];
//~^ ERROR: this range is reversed and using it to index a slice will panic at run-tim
//~| NOTE: `-D clippy::reversed-empty-ranges` implied by `-D warnings`
let _ = &arr[SOME_NUM..1];
//~^ ERROR: this range is reversed and using it to index a slice will panic at run-tim
for _ in ANSWER..ANSWER {}
//~^ ERROR: this range is empty so it will yield no values
// Should not be linted, see issue #5689
let _ = (42 + 10..42 + 10).map(|x| x / 2).find(|&x| x == 21);
}
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