Experiments with select

[Malkovsky]

No description provided.

[chatgpt-codex-connector]

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Reviewed commit: 4a302e8501

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[chatgpt-codex-connector]

Wire the new select tests into CI

This adds a new test binary, but the test suite is not registered with CTest and the checked CI workflow .github/workflows/build-test.yml runs only the existing binaries explicitly (./unittests, ./louds_tree_tests, ./dfuds_tree_tests, ./benchmark_tests, and ./test_rmm, with the SDE job following the same pattern). As a result, regressions caught by select512_experimental_tests will not fail CI unless someone runs this target manually; please add this executable to the workflow or register it via CTest and run ctest.

Useful? React with 👍 / 👎.

[codecov]

Codecov Report

❌ Patch coverage is 86.66667% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.19%. Comparing base (7445639) to head (7109637).

Files with missing lines	Patch %	Lines
src/tests/unittests.cpp	87.75%	2 Missing and 4 partials ⚠️
include/pixie/bits.h	84.61%	1 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
- Coverage   89.22%   89.19%   -0.04%     
==========================================
  Files          17       17              
  Lines        4556     4617      +61     
  Branches      828      840      +12     
==========================================
+ Hits         4065     4118      +53     
- Misses        284      287       +3     
- Partials      207      212       +5     

Flag	Coverage Δ
gcov	89.19% <86.66%> (-0.04%)	⬇️

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