[vkucera]

Fixes errors from the following Clang-Tidy categories:

• clang-analyzer-deadcode.DeadStores
• clang-diagnostic-unused-parameter
• clang-diagnostic-unused-variable

Most errors are fixed temporarily by commenting out the unused bits and by adding a FIXME: unused comment.

The final fix is to either remove the unused bits or to fix the bugs which has to be done by someone who knows the intended behaviour.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 363 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/o2 for c226354 at 2026-11-07 19:22:

## sw/BUILD/O2-latest/log
CMake Error at dependencies/FindFairRoot.cmake:68 (set_target_properties):
CMake Error at /sw/slc9_x86-64/CMake/v4.1.4-6/share/cmake-4.1/Modules/FeatureSummary.cmake:499 (message):

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for c226354 at 2026-11-07 19:23:

## sw/BUILD/O2-latest/log
CMake Error at dependencies/FindFairRoot.cmake:68 (set_target_properties):
CMake Error at /sw/slc9_x86-64/CMake/v4.1.4-6/share/cmake-4.1/Modules/FeatureSummary.cmake:499 (message):

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for c226354 at 2026-11-08 00:31:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'To reproduce the results below locally, run: '\''aliBuild build O2Physics-code-check -e ALIBUILD_BASE_HASH=upstream/master'\''.'
To reproduce the results below locally, run: 'aliBuild build O2Physics-code-check -e ALIBUILD_BASE_HASH=upstream/master'.
++ echo 'To apply all automatic fixes, add the '\''-e O2PHYSICS_CHECKER_FIX=1'\'' option.'
To apply all automatic fixes, add the '-e O2PHYSICS_CHECKER_FIX=1' option.
++ echo 'See the documentation for more details at: <https://aliceo2group.github.io/analysis-framework/docs/tools/#running-with-o2physics-code-check>.'
See the documentation for more details at: <https://aliceo2group.github.io/analysis-framework/docs/tools/#running-with-o2physics-code-check>.
++ echo 'Found 24 errors and 501 warnings.'
Found 24 errors and 501 warnings.
++ [[ 24 -gt 0 ]]
++ cat /sw/BUILD/c8e377edb1343585fb4811ecbb85c70654c9262c/O2Physics-code-check/errors.txt
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:714:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:715:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:717:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:718:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:720:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:721:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:723:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:724:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:726:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:727:9: error: string concatenation results in allocation of unnecessary temporary strings; consider using 'operator+=' or 'string::append()' instead [performance-inefficient-string-concatenation,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:1702:68: error: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/RobustFluctuationObservables.cxx:1702:104: error: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:2443:32: error: C-style casts are discouraged; use constructor call syntax [google-readability-casting,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:2444:35: error: C-style casts are discouraged; use constructor call syntax [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:139:94: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:141:124: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:157:96: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:159:125: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:516:29: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:523:29: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:532:29: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:536:29: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:687:29: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackNucleus.cxx:691:29: error: C-style casts are discouraged; use static_cast [google-readability-casting,-warnings-as-errors]
++ [[ 501 -gt 0 ]]
++ cat /sw/BUILD/c8e377edb1343585fb4811ecbb85c70654c9262c/O2Physics-code-check/warnings.txt
PWGCF/Core/CorrelationContainer.cxx:54:48: warning: initializer for base class 'TNamed' is redundant [readability-redundant-member-init]
PWGCF/Core/CorrelationContainer.cxx:69:64: warning: implicit conversion 'int' -> 'bool' [readability-implicit-bool-conversion]
PWGCF/Core/CorrelationContainer.cxx:96:116: warning: implicit conversion 'int' -> 'bool' [readability-implicit-bool-conversion]
PWGCF/Core/CorrelationContainer.cxx:142:1: warning: constructor does not initialize these fields: mEventCount [cppcoreguidelines-pro-type-member-init]
PWGCF/Core/CorrelationContainer.cxx:156:93: warning: implicit conversion 'int' -> 'bool' [readability-implicit-bool-conversion]
PWGCF/Core/CorrelationContainer.cxx:265:3: warning: use auto when initializing with new to avoid duplicating the type name [modernize-use-auto]
PWGCF/Core/CorrelationContainer.cxx:274:5: warning: use auto when initializing with a cast to avoid duplicating the type name [modernize-use-auto]
PWGCF/Core/CorrelationContainer.cxx:340:3: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGCF/Core/CorrelationContainer.cxx:341:3: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
PWGCF/Core/CorrelationContainer.cxx:368:3: warning: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays]
[0 more errors; see full log]

Full log here.