On Tue, 2010-11-30 at 14:03 +0000, James Turner wrote: > On 30 Nov 2010, at 13:14, Flightgear-commitlogs wrote: > > PAtch by Andreas Gaeb to eliminate NaN's in the location code > > Erik, can you talk a little about what this patch fixes? I can read the > description, and it sounds really great, but it seems very fortunate that a > patch should appear for the exact problem we're having in FlightGear, at this > time. Am I hoping for too much, based upon the description? Form the JSBSim developers list:
> > recently I've run into some floating point exceptions. Tracing them > down, I found that FGLocation could produce them. This is due to the > derived values not being initialized. If the copy constructor or > operator= are called, they copy over the uninitialized garbage in the > derived values -- which on my system happens to evaluate to NaN, thus > causing FPEs. Coincidentally it was posted the same day someone mentioned the startup 'crash' of the C172p. I was hoping it might solve it but was (and still am) skeptical it does. Due to the lack of feedback so far I don't know for certain either. Erik ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
