I would have thought that the compiler, as a matter of optimisation,
could insert a check to see if (==) is comparing an object with itself.
The only way I can see this breaking is with perverse instances of Eq
that would return False for "f == f".
Paul.
On 07/20/2011 04:51 AM, Nikhil A. Patil wrote:
Hi,
Is there any way of getting the following code to immediately return
True without performing the element-by-element comparison? Essentially
this boils down to checking whether pointers are equal before
comparing the contents.
main = print $ f == f
where f = [1..10^9]
Thanks!!
nikhil
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
