[ARROW-11190] [C++][Dataset] Clean up compiler warnings

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 3.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/27095
• Assignee: Ben Kietzman
• Reporter: Ben Kietzman
• Created: 08/Jan/21 16:51
• Updated: 11/Jan/23 08:18
• Resolved: 08/Jan/21 21:31

Description

ARROW-10322 introduced some compiler warnings such as https://github.com/apache/arrow/runs/1669466544#step:8:1434

Issue Links

• links to: GitHub Pull Request #9141