[ARROW-6814] [C++] Resolve compiler warnings occurred on release build

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.16.0
• Component/s: C++, C++ - Gandiva
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23147
• Assignee: Kenta Murata
• Reporter: Kenta Murata
• Created: 08/Oct/19 03:20
• Updated: 11/Jan/23 07:49
• Resolved: 16/Oct/19 13:33

Description

I encountered some compiler warnings on release build when I used gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1).

https://gist.github.com/mrkn/f7739edb301988a24e9d6066410b0625

Issue Links

• links to: GitHub Pull Request #5603