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Tracking Issue for const_array_each_ref #133289

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bjoernager opened this issue Nov 21, 2024 · 0 comments
Open
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Tracking Issue for const_array_each_ref #133289

bjoernager opened this issue Nov 21, 2024 · 0 comments
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C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.

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bjoernager commented Nov 21, 2024 •
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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];
}

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@bjoernager bjoernager added C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. labels Nov 21, 2024
@bjoernager bjoernager mentioned this issue Nov 21, 2024
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jieyouxu added a commit to jieyouxu/rust that referenced this issue Nov 22, 2024
@jieyouxu
Rollup merge of rust-lang#133288 - bjoernager:const-array-each-ref, r…
2e93a75 
…=jhpratt

Support `each_ref` and `each_mut` in `[T; N]` in constant expressions.

Tracking issue: rust-lang#133289

The methods `<[T; N]>::each_ref` and `<[T; N]>::each_mut` can easily be reimplemented to allow marking them with the `const` specifier.

This specific implementation takes a different approach than the original as to avoid using iterators (which are illegal in constant expressions).
rust-timer added a commit to rust-lang-ci/rust that referenced this issue Nov 22, 2024
@rust-timer
Unrolled build for rust-lang#133288
c4faddb 
Rollup merge of rust-lang#133288 - bjoernager:const-array-each-ref, r=jhpratt

Support `each_ref` and `each_mut` in `[T; N]` in constant expressions.

Tracking issue: rust-lang#133289

The methods `<[T; N]>::each_ref` and `<[T; N]>::each_mut` can easily be reimplemented to allow marking them with the `const` specifier.

This specific implementation takes a different approach than the original as to avoid using iterators (which are illegal in constant expressions).
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