Re: [Haskell-cafe] compilation succeeds -- execution fails

On 29 Mar 2008, at 10:21 PM, Jason Dusek wrote:

Stefan O'Rear wrote:

...

The only type that you are allowed to assume corresponds to a C int is CInt, in the Foreign.C.Types module. This probably isn't the problem, but it could make problems of its own on a 64-bit or otherwise weird system.

So say I turn everything back to pointers to CInt, what is the accepted way to convert from CInt to Int

Use fromIntegral to go CInt -> Int, Int -> CInt. This only depends on CInt being an Integral type.

and CInt to Char?

Use toEnum . fromIntegral jcc