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stabilize const_array_each_ref #143383

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merged 1 commit into from
Aug 21, 2025
+4 −4
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stabilize const_array_each_ref #143383

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8 changes: 4 additions & 4 deletions library/core/src/array/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -618,11 +618,11 @@ impl<T, const N: usize> [T; N] {
/// assert_eq!(strings.len(), 3);
/// ```
#[stable(feature = "array_methods", since = "1.77.0")]
#[rustc_const_unstable(feature = "const_array_each_ref", issue = "133289")]
#[rustc_const_stable(feature = "const_array_each_ref", since = "CURRENT_RUSTC_VERSION")]
pub const fn each_ref(&self) -> [&T; N] {
let mut buf = [null::<T>(); N];

// FIXME(const-hack): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions.
// FIXME(const_trait_impl): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions.
let mut i = 0;
while i < N {
buf[i] = &raw const self[i];
Expand All @@ -649,11 +649,11 @@ impl<T, const N: usize> [T; N] {
/// assert_eq!(floats, [0.0, 2.7, -1.0]);
/// ```
#[stable(feature = "array_methods", since = "1.77.0")]
#[rustc_const_unstable(feature = "const_array_each_ref", issue = "133289")]
#[rustc_const_stable(feature = "const_array_each_ref", since = "CURRENT_RUSTC_VERSION")]
pub const fn each_mut(&mut self) -> [&mut T; N] {
let mut buf = [null_mut::<T>(); N];

// FIXME(const-hack): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions.
// FIXME(const_trait_impl): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions.
let mut i = 0;
while i < N {
buf[i] = &raw mut self[i];
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