// run-pass | |
// only-32bit too impatient for 2⁶⁴ items | |
// ignore-wasm32-bare compiled with panic=abort by default | |
// compile-flags: -C debug_assertions=yes -C opt-level=3 | |
use std::panic; | |
use std::usize::MAX; | |
fn main() { | |
let n = MAX as u64; | |
assert_eq!((0..).by_ref().position(|i| i >= n), Some(MAX)); | |
let r = panic::catch_unwind(|| { | |
(0..).by_ref().position(|i| i > n) | |
}); | |
assert!(r.is_err()); | |
let r = panic::catch_unwind(|| { | |
(0..=n + 1).by_ref().position(|_| false) | |
}); | |
assert!(r.is_err()); | |
} |