[ARROW-3550] [C++] Use kUnknownNullCount in NumericArray constructor

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.13.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19864
• Assignee: Ben Kietzman
• Reporter: Wolf Vollprecht
• Created: 18/Oct/18 12:53
• Updated: 11/Jan/23 07:28
• Resolved: 07/Mar/19 14:54

Description

Currently, the default value in the NumericArray constructor for the null_count is 0.

I wonder wether it would be better to use kUnknownNullCount instead? A user could still choose to supply a null_count of 0, or a nullptr as bitmask which would imply a null_count of 0 as well.

Issue Links

• links to: GitHub Pull Request #3781