[ARROW-12745] [C++][Compute] Add floor, ceiling, and truncate kernels

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28487
• Assignee: Eduardo Ponce
• Reporter: Ian Cook
• Created: 11/May/21 21:31
• Updated: 11/Jan/23 08:28
• Resolved: 16/Jul/21 19:26

Description

Kernels to round each value in an array of floating point numbers to:

• the nearest integer less than or equal to it (floor)
• the nearest integer greater than or equal to it (ceiling)
• the integral part without fraction digits

Should return an array of the same type as the input (not an integer type)

Issue Links

• is a child of: ARROW-12748 [C++] Arithmetic kernels for numeric arrays
• relates to: ARROW-13416 [C++] Implement mod compute function
• relates to: ARROW-12744 [C++][Compute] Add rounding kernel
• links to: GitHub Pull Request #10727