-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Gennadiy Rozental Sent: Monday, August 31, 2009 8:00 AM To: boost@lists.boost.org Subject: [boost] enabling/disabling floating point exceptions
I am looking to complete cross platform implementation of enabling/disabling logic in boost::execution_monitor. It looks like there is no standard interface available. I'm using _controlfp interface now on Windows. I also found these non-standard extensions:
* feenableexcep/fedisableexcept available with glib 2.2 * fesettrapenable avaialble in Dinkumware (implementation of STL?) and HP * sun has something called fex_set_handling. not sure when it's available though * header fpu_control.h. Not sure where it's available though. * MAC OS X has something called _MM_SET_EXCEPTION_MASK in xmmintrin.h
Would anyone care to extend this list/comment on it's applicability and/or correctness?
What a can of worms! Making it portable would encourage use. Good luck!
Another change I am considering is to split floating point exception catching from other system exceptions. It seems perfectly valid scenario to set catch_system_error to false (thus avoid catching access violations etc) but still willing to catch and process floating point exception. What do you think?
Sounds reasonable and useful. Paul --- Paul A. Bristow Prizet Farmhouse Kendal, UK LA8 8AB +44 1539 561830, mobile +44 7714330204 pbristow@hetp.u-net.com