Need help on Ptr

[Hal Daume III]

Why not:

  isNullPtr = (==nullPtr)

?

--
 Hal Daume III                                   | hdaume@isi.edu
 "Arrest this man, he talks in maths."           | www.isi.edu/~hdaume

On Thu, 15 May 2003, Christian Buschmann wrote:

> Hi!
> Can someone tell me, how i can check, if a Ptr is a nullPtr.
> Now I am using this function, but I think its not a very nice one:
> 
>   import Ptr
> 
>   isNullPtr :: (Ptr a) -> Bool
>   isNullPtr ptr = (minusPtr ptr nullPtr) == 0
> 
> Maybe someone has got a better idea...
> 
>    christian
> 
> 
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