Re: [boost] [test] comparing floating point values

From: Gottlob Frege (gottlobfrege_at_[hidden])
Date: 2007-05-18 16:58:42

On 5/18/07, Andrew Koenig <ark-mlist_at_[hidden]> wrote:
> > Does
>
>         The IEEE floating-point standard says:
>
> > 0. == 0.
>
> Yes.
>
> > NaN == NaN
>
> No.  NaN compares unordered with everything.
>
> > Inf == Inf.
>
> Yes.

It's sad that Inf == Inf, because most infinities (an infinite number
of them :-) are not equal.  On the other hand, I'd like to be able to
check for Inf (and NaN) so we need to compare them somehow.

Tony