There was some discussion about this on the main list, but there was no clear answer.
http://groups.google.com/group/fa.caml/browse_thread/thread/46ad55d2102c1898/b92a26b04ce70c5d?lnk=gst&q=R#b92a26b04ce70c5d On Thu, Jul 3, 2008 at 11:21 AM, Peng Zhang <[EMAIL PROTECTED]> wrote: > Is it at all possible? > > Following the manual, I know I can call ocaml when C is the main > program. I want to compile C file to Dynamic-link library, and call it > from R. > > Can somebody help to answer it? > > Thanks, > Peng > > On Tue, Jun 24, 2008 at 10:17 PM, Peng Zhang <[EMAIL PROTECTED]> wrote: > > Hi folks, > > > > I need some help from you. What I want to do is that my main program > > is in R and I want to implement part of it with ocaml. > > > > The following is an example. > > > > /* mysin.R */ > > dyn.load("mysin.so") > > mysin <- function(x) > > .C("mysin", as.double(x), r = double(1))$r > > > > /* mycode.ml */ > > let sin_ml x = sin x > > let _ = Callback.register "sin_ml" sin_ml > > > > I want to use sin defined in mycode.ml in mysin.R > > > > Then I write the following stub code > > > > /* mysin.c */ > > #include <caml/mlvalues.h> > > #include <caml/memory.h> > > #include <caml/alloc.h> > > #include <caml/custom.h> > > #include <caml/callback.h> > > > > void mysin(double * x, double * r){ > > value * closure_f; > > caml_startup(NULL); > > closure_f = caml_named_value("sin_ml"); > > *r = Double_val(caml_callback(*closure_f, caml_copy_double(*x))); > > } > > > > It isn't working right now. What I am not sure about is what to put in > > caml_startup. > > > > Can somebody help with me this? Thank you very much! > > > > Best, > > Peng > > > > _______________________________________________ > Caml-list mailing list. Subscription management: > http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list > Archives: http://caml.inria.fr > Beginner's list: http://groups.yahoo.com/group/ocaml_beginners > Bug reports: http://caml.inria.fr/bin/caml-bugs >
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