[all-commits] [llvm/llvm-project] ff2fec: [clang-tidy] Add `bugprone-missing-end-comparison`...

[Zeyi Xu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ff2fec30ac7ca732aec032f45c7d300d04c1e7bf
      https://github.com/llvm/llvm-project/commit/ff2fec30ac7ca732aec032f45c7d300d04c1e7bf
  Author: Zeyi Xu <mitchell.xu2 at gmail.com>
  Date:   2026-06-02 (Tue, 02 Jun 2026)

  Changed paths:
    M clang-tools-extra/clang-tidy/bugprone/BugproneTidyModule.cpp
    M clang-tools-extra/clang-tidy/bugprone/CMakeLists.txt
    A clang-tools-extra/clang-tidy/bugprone/MissingEndComparisonCheck.cpp
    A clang-tools-extra/clang-tidy/bugprone/MissingEndComparisonCheck.h
    M clang-tools-extra/docs/ReleaseNotes.rst
    A clang-tools-extra/docs/clang-tidy/checks/bugprone/missing-end-comparison.rst
    M clang-tools-extra/docs/clang-tidy/checks/list.rst
    A clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/std/algorithm
    A clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/std/iterator
    A clang-tools-extra/test/clang-tidy/checkers/bugprone/missing-end-comparison-custom.cpp
    A clang-tools-extra/test/clang-tidy/checkers/bugprone/missing-end-comparison-cxx17.cpp
    A clang-tools-extra/test/clang-tidy/checkers/bugprone/missing-end-comparison-cxx20.cpp
    A clang-tools-extra/test/clang-tidy/checkers/bugprone/missing-end-comparison-cxx98.cpp
    A clang-tools-extra/test/clang-tidy/checkers/bugprone/missing-end-comparison.cpp

  Log Message:
  -----------
  [clang-tidy] Add `bugprone-missing-end-comparison` check (#182543)

This PR introduces a new check `bugprone-missing-end-comparison`.

It detects instances where the result of a standard algorithm is used
directly in a boolean context without being compared against the
corresponding end iterator.

Currently the check can't handle algorithms returning `std::pair` and
`std::ranges::mismatch_result`, but it should be a good enough starting
point for future improvements.

As of AI-Usage: Assisted by Gemini CLI (for pre-commit reviewing,
documentation and some code refactor/cleanup)
Closes https://github.com/llvm/llvm-project/issues/178731

---------

Co-authored-by: EugeneZelenko <eugene.zelenko at gmail.com>



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