of CEILING and FLOOR

Change-Id: I9537d9bd8dbca2eac769e74e9d3d5b298b76f594
Reviewed-on: https://gerrit.libreoffice.org/16016Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>