Haskell and Maple FFI

Sven Panne Sven.Panne at aedion.de
Thu Oct 21 13:49:28 EDT 2004

Rafael Martinez Torres wrote:
> Well, after reading some doc, I realised it may not be  feasible
> without a FFI preprocessor.

It's feasible without a FFI preprocessor, but probably not very portable.

> For the time beeing, as I don't want to access the internals of Kernel
> descriptor, but to deal with it through the given API, I will declare
> type MKernelDescriptor = Ptr ()
> as a transient solution. It seems to be OK.

A common idiom for an opaque pointer is:

    newtype Foo = Foo (Ptr Foo)


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