[Haskell-cafe] FFI and lists?
kim at arlim.org
Tue Mar 2 16:19:56 EST 2010
I'm working with FFI to make a Haskell DLL that's called by C# code.
I understand how to share simple types. I've found reasonable
documentation for struct-equivalents. Is there a clean way to share
lists, or should I make a linked-list struct and do it manually?
In other words, if I have
adder :: CInt -> CInt -> CInt
adder x y = (x+y)
then I can use
foreign export stdcall adder :: CInt -> CInt -> CInt
and on the other side it behaves like
int adder(int a, int b);
I'd like to know what to do if I have
squares :: [CInt] -> [CInt]
squares = map (^2)
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