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https://github.com/rust-lang/rust
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25 lines
414 B
Rust
25 lines
414 B
Rust
// compile-flags:--test
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// run-pass
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// needs-unwind
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use std::fmt;
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use std::fmt::{Display, Formatter};
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pub struct A(Vec<u32>);
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impl Display for A {
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fn fmt(&self, _f: &mut Formatter<'_>) -> fmt::Result {
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self.0[0];
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Ok(())
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}
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}
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#[test]
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fn main() {
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let result = std::panic::catch_unwind(|| {
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let a = A(vec![]);
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eprintln!("{}", a);
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});
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assert!(result.is_err());
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}
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