Passing arrays between Haskell and C without overhead

Brian Hulley brianh at
Sun Nov 26 17:25:35 EST 2006

Bulat Ziganshin wrote:
> Hello Brian,
> Sunday, November 26, 2006, 5:34:51 PM, you wrote:
>> For a 3d graphics library, I'd like to have a 4x4 matrix of floats
>> which I can pass from Haskell to C without having to copy all 16
>> floats each time, something like:
> you should use StorableArray. also, i suggest you to use ghc 6.6
> because it has much faster foreign ptrs implementation. you may also
> consider using my ArrayRef lib, although from that you said i don't
> see that you will get any advantages from this

Hi Bulat -
Thanks for the suggestion and the link to that page - the info on it is very 


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