No need to re-invent std::abs. Also drop some static_casts, to allow warnings in case there will be unexpected values. Change-Id: Iad1bc7fd22a1c517e4cdce28d156aa42fc5e6ec6 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/193507 Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com> Tested-by: Jenkins