C.Types

[Marcin 'Qrczak' Kowalczyk]

"Daniel Müller" <danielmu at gmx.de> writes:

> foreign import ccall calc :: CInt -> CInt -> CInt
>
> calculate :: Int -> Int -> CalcType
> calculate a b 
> | ...
> | ...
> | otherwise = calc a b
>
>
> Unfortunately I got an error. What shall I do?

Use fromIntegral to convert between CInt and Int, and something for
CalcType depending on what it is.

(It would help if you told *what* error, but I guessed.)

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak at knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/