Commits
François Saint-Jacques authored and Wes McKinney committed 548e1949d52
ARROW-4673: [C++] Implement Scalar::Equals and Datum::Equals Handy for validating kernels. Author: François Saint-Jacques <fsaintjacques@gmail.com> Author: Wes McKinney <wesm+git@apache.org> Closes #3875 from fsaintjacques/ARROW-4673-datum-equal and squashes the following commits: 3fff08785 <Wes McKinney> Add common base class for some primitive scalar, a little DRY 093e1bd55 <François Saint-Jacques> Fix struct Scalar warning 66cae36d8 <François Saint-Jacques> Fix warnings. 7a7c0d6a1 <François Saint-Jacques> ARROW-4673: Implement Scalar::Equals and Datum::Equals