Re: [Haskell-cafe] pointer equality

2011/7/20 Eugene Kirpichov

reallyUnsafePointerEq#, and it really is as unsafe as it sounds :)

Why is it so unsafe? i can't find any documentation on it. I think always compare pointer first is a good optimization.

20.07.2011, в 7:51, "Nikhil A. Patil" написал(а):

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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.

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main = print $ f == f where f = [1..10^9]

Thanks!!

nikhil

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