Re: [boost] [test] investigating Borland test_fp_comparisons fail ure

From: Alisdair Meredith (alisdair.meredith_at_[hidden])
Date: 2005-06-21 08:49:33

Martin Bonner wrote:

> The tolerance is a percentage tolerance, rather than an absolute
> value.
> 
> A percentage tolerance makes sense if you regard 1E-10 as far from 1
> as 1 is from 1E10.  If you do, then 0 is infinitely far from any
> other finite number.  If you don't, then I suggest you are using
> floating point as an easy substitute for fixed-point arithmetic
> (which is what I do).

Thanks, that explains my mis-understanding then.  Guess I should do a
better job reading the friendly manual.

Now I understand the issue, I can take another look at why Borland has
a regression on this test in 1.33.

AlisdairM