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https://issues.apache.org/jira/browse/ARROW-4250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16793132#comment-16793132
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Wes McKinney commented on ARROW-4250:
-------------------------------------
Will take a look since I can reproduce this
> [C++][Gandiva] Use approximate comparisons for floating point numbers in
> gandiva-projector-test
> -----------------------------------------------------------------------------------------------
>
> Key: ARROW-4250
> URL: https://issues.apache.org/jira/browse/ARROW-4250
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, C++ - Gandiva
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Fix For: 0.13.0
>
>
> I experienced a failure due to floating point comparison when running the
> release verification script for 0.12.0 RC2.
> {code}
> [==========] Running 13 tests from 1 test case.
> [----------] Global test environment set-up.
> [----------] 13 tests from TestProjector
> [ RUN ] TestProjector.TestProjectCache
> [ OK ] TestProjector.TestProjectCache (584 ms)
> [ RUN ] TestProjector.TestProjectCacheFieldNames
> [ OK ] TestProjector.TestProjectCacheFieldNames (319 ms)
> [ RUN ] TestProjector.TestProjectCacheDouble
> [ OK ] TestProjector.TestProjectCacheDouble (304 ms)
> [ RUN ] TestProjector.TestProjectCacheFloat
> [ OK ] TestProjector.TestProjectCacheFloat (305 ms)
> [ RUN ] TestProjector.TestIntSumSub
> [ OK ] TestProjector.TestIntSumSub (200 ms)
> [ RUN ] TestProjector.TestAllIntTypes
> [ OK ] TestProjector.TestAllIntTypes (1945 ms)
> [ RUN ] TestProjector.TestExtendedMath
> /tmp/arrow-0.12.0.a2ADf/apache-arrow-0.12.0/cpp/src/gandiva/tests/projector_test.cc:358:
> Failure
> Value of: (expected_cbrt)->Equals(outputs.at(0))
> Actual: false
> Expected: true
> expected array: [
> 2.51984,
> 2.15443,
> -2.41014,
> 2.02469
> ] actual array: [
> 2.51984,
> 2.15443,
> -2.41014,
> 2.02469
> ]
> {code}
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