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Use const generics for array <code>Default</code> impl

A-arrayArea: `[T; N]`Area: `[T; N]`

A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)

A-sliceArea: `[T]`Area: `[T]`

Libs-TrackedLibs issues that are tracked on the team's project board.Libs issues that are tracked on the team's project board.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-langRelevant to the language teamRelevant to the language team

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#61415 In rust-lang/rust;

· varkor opened on May 31, 2019

Provide a means of turning iterators into fixed-size arrays

A-arrayArea: `[T; N]`Area: `[T; N]`

A-iteratorsArea: IteratorsArea: Iterators

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#81615 In rust-lang/rust;

· bstrie opened on Feb 1, 2021

Tracking issue for <code>try_array_from_fn</code>

A-arrayArea: `[T; N]`Area: `[T; N]`

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#89379 In rust-lang/rust;

· c410-f3r opened on Sep 29, 2021

Support returning elements from an array by-value

A-arrayArea: `[T; N]`Area: `[T; N]`

A-borrow-checkerArea: The borrow checkerArea: The borrow checker

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#48174 In rust-lang/rust;

· infinity0 opened on Feb 13, 2018

Array lengths don't support generic parameters.

A-arrayArea: `[T; N]`Area: `[T; N]`

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)

A-lazy-normalizationArea: Lazy normalization (tracking issue: #60471)Area: Lazy normalization (tracking issue: #60471)

glacierICE tracked in rust-lang/glacier.ICE tracked in rust-lang/glacier.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#43408 In rust-lang/rust;

· roblabla opened on Jul 22, 2017

Most core trait impls for empty arrays are over-constrained

A-arrayArea: `[T; N]`Area: `[T; N]`

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#52246 In rust-lang/rust;

· scottmcm opened on Jul 11, 2018

Two-phase borrows don't allow mutably splitting an array based on its length

A-arrayArea: `[T; N]`Area: `[T; N]`

A-NLLArea: Non-lexical lifetimes (NLL)Area: Non-lexical lifetimes (NLL)

NLL-completeWorking towards the "valid code works" goalWorking towards the "valid code works" goal

P-mediumMedium priorityMedium priority

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#53723 In rust-lang/rust;

· shepmaster opened on Aug 26, 2018

Arrays not coercing a mutable reference in the first position

A-arrayArea: `[T; N]`Area: `[T; N]`

A-coercionsArea: implicit and explicit `expr as Type` coercionsArea: implicit and explicit `expr as Type` coercions

C-bugCategory: This is a bug.Category: This is a bug.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#54501 In rust-lang/rust;

· ChrisJefferson opened on Sep 23, 2018

Implementation of Index&lt;Foo&gt; prevents indexing arrays by other index types

A-arrayArea: `[T; N]`Area: `[T; N]`

A-type-systemArea: Type systemArea: Type system

C-bugCategory: This is a bug.Category: This is a bug.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.

Status: Open.

#35873 In rust-lang/rust;

· ghost opened on Aug 21, 2016

<code>array.push(Foo { ... })</code> should construct <code>Foo</code> in-place

A-arrayArea: `[T; N]`Area: `[T; N]`

A-MIRArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.htmlArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.html

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

I-slowIssue: Problems and improvements with respect to performance of generated code.Issue: Problems and improvements with respect to performance of generated code.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#35531 In rust-lang/rust;

· pcwalton opened on Aug 8, 2016

Initializing array of Option&lt;T&gt; using [None; n] syntax should not require std::marker::Copy for T

A-arrayArea: `[T; N]`Area: `[T; N]`

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#44796 In rust-lang/rust;

· ghost opened on Sep 23, 2017

Suggest <code>split_at_mut</code> when trying to use multiple non-overlapping mutable slices to the same array

A-arrayArea: `[T; N]`Area: `[T; N]`

A-borrow-checkerArea: The borrow checkerArea: The borrow checker

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`Area: Suggestions generated by the compiler applied by `cargo fix`

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

P-lowLow priorityLow priority

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#58792 In rust-lang/rust;

· estebank opened on Feb 27, 2019