On Mon, Jun 16, 2008 at 4:07 PM, Evan Laforge <[EMAIL PROTECTED]> wrote: > So, I know this has been discussed before, but: > >> 1/0 > Infinity >> 0/0 > NaN > > ... so I see from the archives that Infinity is mandated by ieee754 > even though my intuition says both should be NaN.
There is a good reason for 1/0 being infinity, as it allows correct programs to give correct answers even in the presence of underflow and overflow. > Every other language throws an exception, even C will crash the > program, so I'm guessing it's telling the processor / OS to turn these > into signals, while GHC is turning that off. Or something. But then > what about this note in Control.Exception: That's just not true. It depends on how your system (compiler?) is configured, but the default on most systems that I've used is to return NaNs. David _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
