Ian Cook created ARROW-12744:
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Summary: [C++] Add rounding kernel
Key: ARROW-12744
URL: https://issues.apache.org/jira/browse/ARROW-12744
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Ian Cook
Kernel to round an array of floating point numbers. Should return an array of
the same type as the input. Should have an option to control how many digits
after the decimal point (default value 0 meaning round to the nearest integer).
Midpoint values (e.g. 0.5 rounded to nearest integer) should round away from
zero (up for positive numbers, down for negative numbers).
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