[Haskell-cafe] Re: Why 'round' does not just round numbers ?

"Felipe Lessa" wrote:

On Mon, Oct 27, 2008 at 10:20 AM, Achim Schneider wrote:

...

Hmmm... I'm wondering whether there's a standard C way to set the rounding direction.

nearbyint() and rint() may be used, and the rounding mode can be set by fesetround(). IIRC, this is C99.

Yes, they are, thanks. Because of stuff like this, I sometimes wish Haskell supported not only morphisms of the type Hask a -> Hask b but (Hask h, RoundDownwards h) => h a -> h b {-# LANGUAGE CategoryClasses #-} ? -- (c) this sig last receiving data processing entity. Inspect headers for copyright history. All rights reserved. Copying, hiring, renting, performance and/or quoting of this signature prohibited.