[jira] [Resolved] (ARROW-16478) [C++] cpu_info.cc fails clang-12 debug build on Arm

["Yibo Cai (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-16478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yibo Cai resolved ARROW-16478.
------------------------------
    Resolution: Fixed

Issue resolved by pull request 13112
[https://github.com/apache/arrow/pull/13112]

> [C++] cpu_info.cc fails clang-12 debug build on Arm
> ---------------------------------------------------
>
>                 Key: ARROW-16478
>                 URL: https://issues.apache.org/jira/browse/ARROW-16478
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>            Reporter: Yibo Cai
>            Assignee: Yibo Cai
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 9.0.0
>
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> {code:bash}
> ../src/arrow/util/cpu_info.cc:124:13: error: implicit conversion loses integer precision: '__ssize_t' (aka 'long') to 'int' [-Werror,-Wshorten-64-to-32]
>   int res = getline(&content, &file_len, cache_file);
>       ~~~   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 error generated.
> {code}
> Not a blocking issue IMO.
> Looks there are more code needs refine in cpu_info.cc.



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