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Document that ManuallyDrop::drop should not called more than once #62360

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Merged
merged 3 commits into from
Jul 29, 2019
Merged

Document that ManuallyDrop::drop should not called more than once #62360

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af96b1d
Document that ManuallyDrop::drop should not called more than once
Aaron1011 Jul 4, 2019
626ae75
Improve formatting of 'ManuallyDrop'
Aaron1011 Jul 4, 2019
a93f4ab
Update wording
Aaron1011 Jul 27, 2019
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3 changes: 2 additions & 1 deletion src/libcore/mem/manually_drop.rs
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Expand Up @@ -118,7 +118,8 @@ impl<T: ?Sized> ManuallyDrop<T> {
///
/// This function runs the destructor of the contained value and thus the wrapped value
/// now represents uninitialized data. It is up to the user of this method to ensure the
/// uninitialized data is not actually used.
/// uninitialized data is not actually used, and that this function is called at most once
/// for a given instance of `ManuallyDrop<T>`.
///
/// [`ManuallyDrop::into_inner`]: #method.into_inner
#[stable(feature = "manually_drop", since = "1.20.0")]
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