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