[Haskell-cafe] another FFI question

[Galchin, Vasili]

Hello,

    I am reading the FFI spec. The following is unclear to me. Say I have

data Bonzo = A | B |C

and I want to "poke" Bonzo to an Int

A -> 0

B -> 1

C -> 4

I have made  Bonzo an instance of Storable.

How do I write the poke functions and call them?

Thanks, Vasili
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