Search results

Type inference of inferred repeat expr counts is not as strong as it could be

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

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

F-generic_arg_inferUsing `_` as a const argument: #![feature(generic_arg_infer)]`Using `_` as a const argument: #![feature(generic_arg_infer)]`

F-marker_trait_attr`#![feature(marker_trait_attr)]``#![feature(marker_trait_attr)]`

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.

#140855 In rust-lang/rust;

· BoxyUwU opened on May 9, 2025

Tracking issue for release notes of #74985: Tracking Issue for slice::array_chunks

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]`

relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.

relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.

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.

#139693 In rust-lang/rust;

· rustbot opened on Apr 11, 2025

Large amount of generated code for match statements with large arrays

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

A-patternsRelating to patterns and pattern matchingRelating to patterns and pattern matching

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

I-heavyIssue: Problems and improvements with respect to binary size of generated code.Issue: Problems and improvements with respect to binary size 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.

#110870 In rust-lang/rust;

· alex opened on Apr 26, 2023

Rust produces unlinkable code when writing large arrays

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

A-linkageArea: linking into static, shared libraries and binariesArea: linking into static, shared libraries and binaries

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.

#108566 In rust-lang/rust;

· msrd0 opened on Feb 28, 2023

Unsafe block does not propagate into array length

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

Status: Open.

#105204 In rust-lang/rust;

· RalfJung opened on Dec 3, 2022

Suggest <code>.try_into().unwrap()</code> or <code>as _</code> for const parameters of the wrong type (e.g., in array types) if applicable and possible on stable

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

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

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

D-lack-of-suggestionDiagnostics: Adding a (structured) suggestion would increase the quality of the diagnostic.Diagnostics: Adding a (structured) suggestion would increase the quality of the diagnostic.

D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.

S-blockedStatus: Blocked on something else such as an RFC or other implementation work.Status: Blocked on something else such as an RFC or other implementation work.

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.

#104949 In rust-lang/rust;

· scvalex opened on Nov 26, 2022

[ER] Sub-optimal allocation of simple zeroed Vec of arrays

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

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

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.

#104847 In rust-lang/rust;

· leonardo-m opened on Nov 24, 2022

Provide structural pinning guarantees for slices, vecs, arrays

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

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

Status: Open.

#104108 In rust-lang/rust;

· yoshuawuyts opened on Nov 7, 2022

core::array::from_fn segfaults (v1.64, v1.63)

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

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

Status: Open.

#103756 In rust-lang/rust;

· mvniekerk opened on Oct 30, 2022

transitive coercion to slice doesn't work for arrays

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.

Status: Open.

#103259 In rust-lang/rust;

· oconnor663 opened on Oct 19, 2022

<code>str::array_split</code> for splitting a string into a constant number of substrings

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

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

A-strArea: str and StringArea: str and String

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.

#102905 In rust-lang/rust;

· pitaj opened on Oct 11, 2022

Function operating on arrays performs a lot worse for arrays of length 2

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

A-codegenArea: Code generationArea: Code generation

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

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

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.

#102274 In rust-lang/rust;

· Canleskis opened on Sep 25, 2022