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Some trait functions are now listed as "const fn" even for types without a const trait impl #143375

Closed as duplicate
Closed as duplicate
Some trait functions are now listed as "const fn" even for types without a const trait impl#143375
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fee1-dead
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C-bugCategory: This is a bug.F-const_trait_impl`#![feature(const_trait_impl)]`PG-const-traitsProject group: Const traitsT-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue.

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@RalfJung
RalfJung
opened on Jul 3, 2025

Consider for instance these docs:

Image

This looks like I can call ne in const context but not eq, which makes little sense.

Cc @rust-lang/project-const-traits (is that ping group still the right one for this?)

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  1. RalfJung
    added
    T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue.
    C-bugCategory: This is a bug.
    F-const_trait_impl`#![feature(const_trait_impl)]`
    PG-const-traitsProject group: Const traits
    on Jul 3, 2025
  2. rustbot
    added
    needs-triageThis issue may need triage. Remove when done. See docs forge.rust-lang.org/release/issue-triaging
    on Jul 3, 2025

  3. fee1-dead commented on Jul 3, 2025

    @fee1-dead
    fee1-dead
    on Jul 3, 2025
    Member

    @rustbot claim

  4. rustbot
    assigned
    fee1-dead
    on Jul 3, 2025

  5. fmease commented on Jul 3, 2025

    @fmease
    fmease
    on Jul 3, 2025
    Member

    (dupe of #143071)

  6. RalfJung
    closed this as a duplicateof std docs incorrectly renders trait methods as const #143071 on Jul 3, 2025
  7. saethlin
    removed
    needs-triageThis issue may need triage. Remove when done. See docs forge.rust-lang.org/release/issue-triaging
    on Jul 4, 2025
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C-bugCategory: This is a bug.F-const_trait_impl`#![feature(const_trait_impl)]`PG-const-traitsProject group: Const traitsT-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue.

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