[Haskell-cafe] example of FFI FunPtr

[Galchin, Vasili]

Hello,

       I want to model a Haskell function that is a callback from C. I have
only found one example in the unix package's Semaphore.hsc, which apparently
is not used. I want to be able to marshall a Haskell function that is a
first class citizen residing in a Haskell data type and pass to a C function
via FFI. Are there examples of this?

Thanks, Vasili
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