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Avoid copy in iteration by using const auto & #4861

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merged 1 commit into from
Sep 25, 2023

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Description

Coverity scan highlights AUTO_CAUSES_COPY issue:

image

Suggested changelog entry:

None.

This change is fixing a Coverity AUTO_CAUSES_COPY issues.
@oleksandr-pavlyk oleksandr-pavlyk force-pushed the use-auto-ref-to-avoid-copy branch from 4d67c6a to 732b0d3 Compare September 25, 2023 13:14
@oleksandr-pavlyk oleksandr-pavlyk changed the title Avoid copy in iteration by using auto & Avoid copy in iteration by using const auto & Sep 25, 2023
@rwgk rwgk merged commit 7e5edbc into pybind:master Sep 25, 2023
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@github-actions github-actions bot added the needs changelog Possibly needs a changelog entry label Sep 25, 2023
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rwgk commented Sep 25, 2023

Thanks!

If you get a chance, could you please add the Coverty version information to the PR description?

Is/was this the only finding from that Coverty version?

@rwgk rwgk removed the needs changelog Possibly needs a changelog entry label Sep 25, 2023
@oleksandr-pavlyk
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I used

Coverity Static Analysis version 2023.3.0 on Linux 5.15.0-78-generic x86_64
Internal version numbers: 10201e8525 p-2023.3-push-55

there are multiple issues, some of which I reported: gh-4821, gh-4822, and gh-4814.

They are fished out of the large body of reports generated for IntelPython/dpctl project. I will keep looking out for more.

@oleksandr-pavlyk oleksandr-pavlyk deleted the use-auto-ref-to-avoid-copy branch September 25, 2023 18:18
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rwgk commented Sep 25, 2023

I just commented on the two open ones. (I'm not sure if anyone is regularly looking at bugs here. Just speaking for myself: I'm only able to look at PRs.)

rwgk pushed a commit to rwgk/pybind11 that referenced this pull request Jun 12, 2024
* fix: Use lowercase builtin collection names (pybind#4833)

* Update render for buffer sequence and handle  (pybind#4831)

* fix: Add capitalize render name of `py::buffer` and `py::sequence`

* fix: Render `py::handle` same way as `py::object`

* tests: Fix tests `handle` -> `object`

* tests: Test capitaliation of `py::sequence` and `py::buffer`

* style: pre-commit fixes

* fix: Render `py::object` as `Any`

* Revert "fix: Render `py::object` as `Any`"

This reverts commit 7861dcf.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Ralf W. Grosse-Kunstleve <rwgk@google.com>

* fix: Missing typed variants of `iterator` and `iterable` (pybind#4832)

* Fix small bug introduced with PR pybind#4735 (pybind#4845)

* Bug fix: `result[0]` called if `result.empty()`

* Add unit test that fails without the fix.

* fix(cmake): correctly detect FindPython policy and better warning (pybind#4806)

* fix(cmake): support DEBUG_POSTFIX correctly (pybind#4761)

* cmake: split extension

Into suffix and debug postfix. Pybind11 is currently treating both as
suffix, which is problematic when something else defines the
DEBUG_POSTFIX because they will be concatenated.

pybind11_extension sets SUFFIX to _d.something and if DEBUG_POSTFIX is
set to _d.

    _d + _d.something = _d_d.something

The issue has been reported at:

pybind#4699

* style: pre-commit fixes

* fix(cmake): support postfix for old FindPythonInterp mode too

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>

* Avoid copy in iteration by using const auto & (pybind#4861)

This change is fixing a Coverity AUTO_CAUSES_COPY issues.

* Add 2 missing `throw error_already_set();` (pybind#4863)

Fixes oversights in PR pybind#4570.

* MAINT: Include `numpy._core` imports (pybind#4857)

* MAINT: Include numpy._core imports

* style: pre-commit fixes

* Apply review comments

* style: pre-commit fixes

* Add no-inline attribute

* Select submodule name based on numpy version

* style: pre-commit fixes

* Update pre-commit check

* Add error_already_set and simplify if statement

* Update .pre-commit-config.yaml

Co-authored-by: Ralf W. Grosse-Kunstleve <rwgkio@gmail.com>

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Ralf W. Grosse-Kunstleve <rwgkio@gmail.com>

* MAINT: Remove np.int_ (pybind#4867)

* chore(deps): update pre-commit hooks (pybind#4868)

* chore(deps): update pre-commit hooks

updates:
- [github.com/psf/black-pre-commit-mirror: 23.7.0 → 23.9.1](psf/black-pre-commit-mirror@23.7.0...23.9.1)
- [github.com/astral-sh/ruff-pre-commit: v0.0.287 → v0.0.292](astral-sh/ruff-pre-commit@v0.0.287...v0.0.292)
- [github.com/codespell-project/codespell: v2.2.5 → v2.2.6](codespell-project/codespell@v2.2.5...v2.2.6)
- [github.com/shellcheck-py/shellcheck-py: v0.9.0.5 → v0.9.0.6](shellcheck-py/shellcheck-py@v0.9.0.5...v0.9.0.6)
- [github.com/PyCQA/pylint: v3.0.0a7 → v3.0.0](pylint-dev/pylint@v3.0.0a7...v3.0.0)

* Update .pre-commit-config.yaml

* style: pre-commit fixes

* Update .pre-commit-config.yaml

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Sergei Izmailov <sergei.a.izmailov@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
Co-authored-by: László Papp <108480845+lpapp-foundry@users.noreply.github.com>
Co-authored-by: Oleksandr Pavlyk <oleksandr.pavlyk@intel.com>
Co-authored-by: Mateusz Sokół <8431159+mtsokol@users.noreply.github.com>
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2 participants