Re: [boost] floating point FUD

Subject: Re: [boost] floating point FUD
From: John Maddock (john_at_[hidden])
Date: 2010-01-25 04:56:48

> >This by the way was the very motivation behind Boost.interval library. 
> >And
>>it's used to guarantee
>>consistent floating-point driven logic (with overlapping intervals
>>triggering exact computation) with
>>the cost (in most cases) of floating point additions (well, a bit more, 
>>for
>>the interval bounds, and a
>>bit more yet for changing the rounding mode).
>
> Absolutely, and I would love to get Boost.Interval and Boost.Math to work
> well together, I put quite a bit of effort into making that happen 
> actually,
> but my patches (and not to mention bug reports) for Boost.Interval went
> unattended to, so I basically gave up...

I forgot to mention - it's not so easy to set a breakpoint in Boost.Interval 
so that you break (or only print debugging info to std::cerr) once the 
epsilon error reaches a certain threshold.  I'm probably missing something 
though...

John.