13 Apr
2013
13 Apr
'13
1:18 p.m.
Franco answers a question :
Hello haskellers,is there a reason why Integer doesn't have 'NaN' as value?I think it would be very convenient to be able to handle (1 `div` 0) as regular NaN value and not as exception.Thanks. I think because, if you need NaN like values, `Maybe Int` does the same job without tainting the definition of `Int`. This is not a Haskell problem. For Ints, ALL representations are valid numbers, a NaN is a specific float object, unless I'm mistaken, so the introduction of such an abnormal number would require some serious modifications of the representation.
Jerzy Karczmarczuk