[ARROW-1624] [C++] Follow up fixes / tweaks to compiler warnings for Plasma / LLVM 4.0, add to readme

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.8.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17635
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 29/Sep/17 20:49
• Updated: 11/Jan/23 07:15
• Resolved: 30/Sep/17 18:25

Description

Not sure why these failures weren't caught in CI

Issue Links

• links to: GitHub Pull Request #1148