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Rollup merge of #48787 - mbrubeck:cloned, r=joshtriplett

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Stabilize option_ref_mut_cloned

Closes #43738.
This commit is contained in:
Alex Crichton 2018-03-06 20:01:13 -06:00
commit 05ebc19de3
1 changed files with 1 additions and 2 deletions
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src/libcore/option.rs
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@ -829,14 +829,13 @@ impl<'a, T: Clone> Option<&'a mut T> {
/// # Examples
///
/// ```
/// #![feature(option_ref_mut_cloned)]
/// let mut x = 12;
/// let opt_x = Some(&mut x);
/// assert_eq!(opt_x, Some(&mut 12));
/// let cloned = opt_x.cloned();
/// assert_eq!(cloned, Some(12));
/// ```
#[unstable(feature = "option_ref_mut_cloned", issue = "43738")]
#[stable(since = "1.26.0", feature = "option_ref_mut_cloned")]
pub fn cloned(self) -> Option<T> {
self.map(|t| t.clone())
}