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Add explanation for #[must_use] on Result

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This commit is contained in:
Manish Goregaokar 2018-05-07 09:18:12 -07:00
parent 62889702c9
commit 1abed9cebf
1 changed files with 1 additions and 1 deletions
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src/libcore/result.rs
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@ -251,7 +251,7 @@ use ops;
/// [`Ok`]: enum.Result.html#variant.Ok
/// [`Err`]: enum.Result.html#variant.Err
#[derive(Clone, Copy, PartialEq, PartialOrd, Eq, Ord, Debug, Hash)]
#[must_use]
#[must_use = "this `Result` may be an `Err` variant, which should be handled"]
#[stable(feature = "rust1", since = "1.0.0")]
pub enum Result<T, E> {
/// Contains the success value