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Make UnsafeCell::get_mut const #88722

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Merged
bors merged 2 commits into from
Sep 14, 2021
Merged

Make UnsafeCell::get_mut const #88722

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efeb461
Make `UnsafeCell::get_mut` const
WaffleLapkin Sep 7, 2021
2c30162
Fill in the tracking issue for `#![feature(const_unsafecell_get_mut)]`
WaffleLapkin Sep 10, 2021
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3 changes: 2 additions & 1 deletion library/core/src/cell.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1916,7 +1916,8 @@ impl<T: ?Sized> UnsafeCell<T> {
/// ```
#[inline(always)]
#[stable(feature = "unsafe_cell_get_mut", since = "1.50.0")]
pub fn get_mut(&mut self) -> &mut T {
#[rustc_const_unstable(feature = "const_unsafecell_get_mut", issue = "none")]
pub const fn get_mut(&mut self) -> &mut T {
&mut self.value
}

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