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Rollup merge of #137516 - RalfJung:rustc_const_unstable-cleanup, r=Amanieu

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remove some unnecessary rustc_const_unstable

If the function is anyway unstable, it doesn't need to be `rustc_const_unstable`.

`copy_from_slice` turns out to not do anything const-unstable itself, we just haven't stably committed to it being available in const yet. See [here](https://rustc-dev-guide.rust-lang.org/stability.html?highlight=rustc_const_stable_indirect) for more details on the `rustc_const_stable_indirect` attribute.
This commit is contained in:
Trevor Gross 2025-02-24 18:46:37 -05:00 committed by GitHub
commit 91dc3eed50
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2 changed files with 1 additions and 4 deletions
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3
library/core/src/mem/maybe_uninit.rs
View File

@ -1041,7 +1041,6 @@ impl<T> MaybeUninit<T> {
/// Deprecated version of [`slice::assume_init_ref`].
#[unstable(feature = "maybe_uninit_slice", issue = "63569")]
#[rustc_const_unstable(feature = "maybe_uninit_slice", issue = "63569")]
#[deprecated(
note = "replaced by inherent assume_init_ref method; will eventually be removed",
since = "1.83.0"
@ -1053,7 +1052,6 @@ impl<T> MaybeUninit<T> {
/// Deprecated version of [`slice::assume_init_mut`].
#[unstable(feature = "maybe_uninit_slice", issue = "63569")]
#[rustc_const_unstable(feature = "maybe_uninit_slice", issue = "63569")]
#[deprecated(
note = "replaced by inherent assume_init_mut method; will eventually be removed",
since = "1.83.0"
@ -1326,7 +1324,6 @@ impl<T> [MaybeUninit<T>] {
///
/// [`write_clone_of_slice`]: slice::write_clone_of_slice
#[unstable(feature = "maybe_uninit_write_slice", issue = "79995")]
#[rustc_const_unstable(feature = "maybe_uninit_write_slice", issue = "79995")]
pub const fn write_copy_of_slice(&mut self, src: &[T]) -> &mut [T]
where
T: Copy,

2
library/core/src/slice/mod.rs
View File

@ -956,7 +956,6 @@ impl<T> [T] {
/// [`swap`]: slice::swap
/// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
#[unstable(feature = "slice_swap_unchecked", issue = "88539")]
#[rustc_const_unstable(feature = "slice_swap_unchecked", issue = "88539")]
pub const unsafe fn swap_unchecked(&mut self, a: usize, b: usize) {
assert_unsafe_precondition!(
check_library_ub,
@ -3734,6 +3733,7 @@ impl<T> [T] {
#[inline]
#[stable(feature = "copy_from_slice", since = "1.9.0")]
#[rustc_const_unstable(feature = "const_copy_from_slice", issue = "131415")]
#[rustc_const_stable_indirect]
#[track_caller]
pub const fn copy_from_slice(&mut self, src: &[T])
where