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Mark a doctest as requiring unwinding #160151

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Merged
rust-bors merged 1 commit into from
Jul 30, 2026
+7 −0
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Mark a doctest as requiring unwinding #160151

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7 changes: 7 additions & 0 deletions library/alloc/src/io/buffered/bufwriter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -490,6 +490,10 @@ impl<W: ?Sized + Write> BufWriter<W> {
/// # Example
///
/// ```
/// # // This test requires unwinding to work.
/// # // Disable it when unwinding isn't available.
/// # #[cfg(panic = "unwind")]
/// # fn main() {
/// use std::io::{self, BufWriter, Write};
/// use std::panic::{catch_unwind, AssertUnwindSafe};
///
Expand All @@ -508,6 +512,9 @@ impl<W: ?Sized + Write> BufWriter<W> {
/// let (recovered_writer, buffered_data) = stream.into_parts();
/// assert!(matches!(recovered_writer, PanickingWriter));
/// assert_eq!(buffered_data.unwrap_err().into_inner(), b"some data");
/// # }
/// # #[cfg(not(panic = "unwind"))]
/// # fn main() {}
/// ```
pub struct WriterPanicked {
buf: Vec<u8>,
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