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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/06/04 01:20:00 UTC
[jira] [Resolved] (ARROW-2655) [C++] Failure with
-Werror=conversion on gcc 7.3.0
[ https://issues.apache.org/jira/browse/ARROW-2655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney resolved ARROW-2655.
---------------------------------
Resolution: Fixed
Issue resolved by pull request 2095
[https://github.com/apache/arrow/pull/2095]
> [C++] Failure with -Werror=conversion on gcc 7.3.0
> --------------------------------------------------
>
> Key: ARROW-2655
> URL: https://issues.apache.org/jira/browse/ARROW-2655
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Experienced this error building on Ubuntu 18.04 LTS / gcc 7.3.0
> {code}
> /usr/bin/ccache /usr/bin/g++ -DARROW_EXTRA_ERROR_CONTEXT -DARROW_NO_DEPRECATED_API -isystem /home/wesm/cpp-toolchain/include -isystem gbenchmark_ep/src/gbenchmark_ep-install/include -isystem ../thirdparty/hadoop/include -isystem orc_ep-install/include -Isrc -I../src -isystem /home/wesm/miniconda/envs/arrow-dev/lib/python3.6/site-packages/numpy/core/include -isystem /home/wesm/miniconda/envs/arrow-dev/include/python3.6m -D_GLIBCXX_USE_CXX11_ABI=0 -ggdb -O0 -Wall -Wconversion -Wno-sign-conversion -Wno-unknown-warning-option -Werror -std=c++11 -msse3 -Werror -g -fPIC -std=gnu++11 -MD -MT src/arrow/python/CMakeFiles/arrow_python_objlib.dir/arrow_to_pandas.cc.o -MF src/arrow/python/CMakeFiles/arrow_python_objlib.dir/arrow_to_pandas.cc.o.d -o src/arrow/python/CMakeFiles/arrow_python_objlib.dir/arrow_to_pandas.cc.o -c ../src/arrow/python/arrow_to_pandas.cc
> In file included from ../src/arrow/compute/kernel.h:28:0,
> from ../src/arrow/compute/api.h:22,
> from ../src/arrow/python/arrow_to_pandas.cc:46:
> ../src/arrow/util/variant.h:588:67: error: conversion to ‘unsigned int’ from ‘long unsigned int’ may alter its value [-Werror=conversion]
> static const std::size_t data_size = detail::static_max<sizeof(Types)...>::value;
> ^
> ../src/arrow/util/variant.h:589:79: error: conversion to ‘unsigned int’ from ‘long unsigned int’ may alter its value [-Werror=conversion]
> static const std::size_t data_align = detail::static_max<alignof(Types)...>::value;
> ^
> cc1plus: error: unrecognized command line option ‘-Wno-unknown-warning-option’ [-Werror]
> cc1plus: all warnings being treated as errors
> {code}
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