Hi, I think libffi might be the answer here. Please see Hackage and Haskell wiki for details.
Cheers, Krzysztof Skrzetnicki 17-02-2013 12:18, "Ryan Newton" <rrnew...@gmail.com> napisał(a): > Hello cafe, > > I've been poking around and I haven't seen this addressed anywhere except > obliquely in the end of section 8.5.1 of the report, where it says that > variable argument C functions aren't supported: > > http://www.haskell.org/onlinereport/haskell2010/haskellch8.html > > The scenario is pretty simple. I generate C code at runtime. I compile > it to a .so. I know how many arguments it expects (but only at runtime), > and I get a FunPtr back from 'dlsym'. How do I call it? > > I was hoping there would be some "Raw" lower level FFI layer that I could > use to invoke a C function without automagic marshaling and all the other > goodness provided by the normal "foreign import" mechanism. > > Failing that, will I just have to generate complex wrappers on the C side > which I call N times to load up N arguments into some stateful container > before finally launching the function? > > Thanks, > -Ryan > > > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > >
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