[Haskell-cafe] NaN, Infinity literals

[Chris Kuklewicz]

You want the RealFloat class functions: 
http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#t%3ARealFloat

Tamas K Papp wrote:
> Hi,
> 
> Is there a way to use NaN and Infinity as literals, or at least to
> test if a value is NaN or Infinity?
> 
> I tried
> 
> *Main> let nan=0/0
> *Main> nan
> NaN
> *Main> nan==0/0
> False
> 
> so "storing" the value does not work...
> 
> Thanks,
> 
> Tamas
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