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module Main(main) where
import Foreign
import Foreign.C
type HsCallback = CInt -> IO ()
foreign import ccall "T15933.h function_in_c"
functionInC :: FunPtr HsCallback -> IO ()
foreign import ccall "wrapper"
wrap :: HsCallback -> IO (FunPtr HsCallback)
main = do
f <- wrap $ \x -> print x
functionInC f
freeHaskellFunPtr f
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