In 09-007r3 at [420:38] I see CALL IEEE_SET_HALTING (FLAG). But I'm not finding that routine described in Clause 14. Is this a bug? Cheers, Bill -- Bill Long longb at cray.com Fortran Technical Support & voice: 651-605-9024 Bioinformatics Software Development fax: 651-605-9142 Cray Inc./Cray Plaza, Suite 210/380 Jackson St./St. Paul, MN 55101