On 2011-12-20 13:30:30 +0100, Segher Boessenkool wrote: > Dunno about that(*), but you can portably do > > fesetround(FE_TOWARDZERO); > > and that prevents the problem from occurring as well. But this is a bad idea in general, as it would affect all FP operations, not just subnormals (when one gets subnormals, one has already lost much precision, so that FTZ may not be a problem in practice -- this depends on the application, of course). -- Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
