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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2024-11-05 23:43:55 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-11-05 23:43:55 +0100 |
| commit | efa5af96a1ab626047feb70f54b1cfce0d4a2d36 (patch) | |
| tree | d361c593574af08800df7c92d9177b99011ddf92 | |
| parent | bc5cf994db9fb46712cefd89f78ad7fc51f184a2 (diff) | |
| parent | 6828a1edc63819120c7d11544f149cdd839ef915 (diff) | |
| download | rust-efa5af96a1ab626047feb70f54b1cfce0d4a2d36.tar.gz rust-efa5af96a1ab626047feb70f54b1cfce0d4a2d36.zip | |
Rollup merge of #131261 - clarfonthey:unsafe-cell-from-mut, r=m-ou-se
Stabilize `UnsafeCell::from_mut` Closes #111645. FCP: https://github.com/rust-lang/rust/issues/111645#issuecomment-2393893003 Note that because `const_mut_refs` and `const_refs_to_cell` was stabilized, it's okay to const-stabilize this method as well.
| -rw-r--r-- | library/core/src/cell.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs index 7e6c042274d..ab76cd7a6be 100644 --- a/library/core/src/cell.rs +++ b/library/core/src/cell.rs @@ -2122,7 +2122,6 @@ impl<T: ?Sized> UnsafeCell<T> { /// # Examples /// /// ``` - /// # #![feature(unsafe_cell_from_mut)] /// use std::cell::UnsafeCell; /// /// let mut val = 42; @@ -2132,7 +2131,9 @@ impl<T: ?Sized> UnsafeCell<T> { /// assert_eq!(*uc.get_mut(), 41); /// ``` #[inline(always)] - #[unstable(feature = "unsafe_cell_from_mut", issue = "111645")] + #[stable(feature = "unsafe_cell_from_mut", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "unsafe_cell_from_mut", since = "CURRENT_RUSTC_VERSION")] + #[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))] pub const fn from_mut(value: &mut T) -> &mut UnsafeCell<T> { // SAFETY: `UnsafeCell<T>` has the same memory layout as `T` due to #[repr(transparent)]. unsafe { &mut *(value as *mut T as *mut UnsafeCell<T>) } |