[Haskell-cafe] FFI: "foreign label" declaration

Ricardo Herrmann rherrmann at gmail.com
Tue Dec 11 14:25:40 EST 2007

Malcolm Wallace wrote:
> Ricardo Herrmann <rherrmann at gmail.com> wrote:
>> a .chs file which uses a "foreign label" syntax, which seems
>> deprecated, since the parser can't even recognize it:
>> foreign label "bdd_reorder_stable_window3"
>>   bdd_reorder_stable_window3 :: FunPtr (BDDManager -> IO ())
>> Is there new syntax for this ? Or is it a deprecated functionality ?
> I believe it is now "foreign import" with an ampersand in front of the
> name of the foreign entity, e.g.
>   foreign import "& bdd_reorder_stable_window3"
>     bdd_reorder_stable_window3 :: FunPtr (BDDManager -> IO ())

Changing "foreign label" to "foreign import ccall" (with the ampersand) did
the trick, thanks.

PS: At least it compiled, but I still didn't check if it works ;-)

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