[Haskell-cafe] FFI basics
Donald Bruce Stewart
dons at cse.unsw.edu.au
Sat Feb 10 03:21:58 EST 2007
> Hello Yitzchak,
> Friday, February 9, 2007, 3:23:53 PM, you wrote:
> > I would like to use FFI for the first time. Can someone
> > give me a really, really simple complete example?
> nothing can be easier
> main = print (c_mysin 1.0)
> foreign import ccall "mysin.h mysin"
> c_mysin :: Double -> Double
Shouldn't that be CDouble? At least for Int/CInt you can hit troubles on
64 bit machines...
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