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Tracking Issue for unchecked_disjoint_bitor #135758

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#165009
Open
Tracking Issue for unchecked_disjoint_bitor#135758
#165009
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C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCT-libsRelevant to the library team, which will review and decide on the PR/issue.

Description

@scottmcm
scottmcm
opened on Jan 20, 2025

Feature gate: #![feature(disjoint_bitor)]

This is a tracking issue for the unchecked_disjoint_bitor method on integer types (and the associated intrinsic implementing it).

This is a method for cases where a | b and a + b return the same value, named after the disjoint flag in LLVM.

ACP: rust-lang/libs-team#373

Public API

impl u8/.../u128/usize, i8/.../i128/isize, bool {
    pub const unsafe fn unchecked_disjoint_bitor(self, other: Self) -> Self;
}

Steps / History

Unresolved Questions

  • None yet.

Footnotes

  1. https://std-dev-guide.rust-lang.org/feature-lifecycle/stabilization.html ↩

Activity

  1. scottmcm
    added
    C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFC
    T-libs-api[DEPRECATED; DO NOT USE]
    on Jan 20, 2025

  2. clarfonthey commented on Jun 4, 2025

    @clarfonthey
    clarfonthey
    on Jun 4, 2025
    Contributor

    Are there any major impediments to stabilising this, since it's been over four months?

  3. bjoernager commented on Oct 5, 2025

    @bjoernager
    bjoernager
    on Oct 5, 2025
    Contributor

    Additional implementations for bool and signed types: #147368.

  4. clarfonthey
    added
    T-libsRelevant to the library team, which will review and decide on the PR/issue.
    and removed
    T-libs-api[DEPRECATED; DO NOT USE]
    on Aug 12, 2026
  5. JonathanBrouwer
    added a commit that references this issue on Oct 23, 2026

    Rollup merge of rust-lang#147368 - bjoernager:disjoint-bitor, r=tgross35

    8368dde
  6. rust-bors
    added a commit that references this issue on Oct 24, 2026

    Unrolled build for #147368 in rollup 164826

    7eb3fbf
  7. mehmettoplu-rs
    added a commit that references this issue on Oct 24, 2026

    Rollup merge of #147368 - bjoernager:disjoint-bitor, r=tgross35

    f2de6bd
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