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Tracking Issue for const_array_each_ref #133289
Description
Feature gate: #![feature(const_array_each_ref)]
This is a tracking issue for supporting the each_ref and each_mut methods in [T; N] in constant expressions.
Public API
impl<T, const N: usize> [T; N] {
pub const fn each_ref(&self) -> [&T; N];
pub const fn each_mut(&mut self) -> [&mut T; N];
}- Implementation: Support
each_refandeach_mutin[T; N]in constant expressions. #133288 - Final comment period (FCP)
- Stabilization PR: stabilize
const_array_each_ref#143383
Unresolved Questions
- None yet.
Reacted by Nazar Mokrynskyi
Reacted by José Luis Cruz
Activity
Rollup merge of rust-lang#133288 - bjoernager:const-array-each-ref, r…
Unrolled build for rust-lang#133288
RalfJung commentedon Jul 3, 2025
@rust-lang/libs-api @rust-lang/wg-const-eval I see no blocker for const-stabilizing these functions, which have been stable since Rust 1.77. The implementation had to be changed to use a while loop instead of an iterator, but we can always change it back later when const traits become more capable.
dtolnay commentedon Jul 4, 2025
@rfcbot fcp merge
constfor these 2 stable functions:rfcbot commentedon Jul 4, 2025
Team member @dtolnay has proposed to merge this. The next step is review by the rest of the tagged team members:
No concerns currently listed.
Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!
See this document for info about what commands tagged team members can give me.
fee1-dead commentedon Aug 9, 2025
hi @BurntSushi, @joshtriplett, @m-ou-se: waiting for checked boxes :)
rfcbot commentedon Aug 10, 2025
🔔 This is now entering its final comment period, as per the review above. 🔔
bjoernager commentedon Aug 10, 2025
Stabilisation PR:
#145211#143383rfcbot commentedon Aug 20, 2025
The final comment period, with a disposition to merge, as per the review above, is now complete.
As the automated representative of the governance process, I would like to thank the author for their work and everyone else who contributed.
This will be merged soon.
Rollup merge of rust-lang#143383 - fee1-dead-contrib:push-mstmlwuskxy…
Rollup merge of rust-lang#143383 - fee1-dead-contrib:push-mstmlwuskxy…
Rollup merge of rust-lang#143383 - fee1-dead-contrib:push-mstmlwuskxy…
Rollup merge of rust-lang#143383 - fee1-dead-contrib:push-mstmlwuskxy…
Rollup merge of rust-lang#143383 - fee1-dead-contrib:push-mstmlwuskxy…
Unrolled build for #143383
Rollup merge of rust-lang#143383 - fee1-dead-contrib:push-mstmlwuskxy…