Entrypoint doubleabs compatible with UTF-8
Input DOUBLE floatingpoint Output DOUBLE absolute (positiv) value of a floatingpoint
TestSQL SELECT 15.678 AS ISCORRECT, F_DOUBLEABS(15.678) FROM RDB$DATABASE; SELECT 15.678 AS ISCORRECT, F_DOUBLEABS(-15.678) FROM RDB$DATABASE; SELECT 15.678 AS ISCORRECT, F_ABS(15.678) FROM RDB$DATABASE; SELECT 15.678 AS ISCORRECT, F_ABS(-15.678) FROM RDB$DATABASE; SELECT NULL AS ISCORRECT, F_ABS(NULL) FROM RDB$DATABASE;