Le lundi 1 mars 2010 04:55:00, Jianzhou Zhao a écrit : > I have been calling OCaml code from C in my project. > The C code has some pointers to C structures. > I got 'seg fault' when calling the OCaml function receiving > C structure pointers. > > 18.7 at http://caml.inria.fr/pub/docs/manual-ocaml/manual032.html > gives the examples that pass int into OCaml. These examples work for me. > But, Does OCaml support to pass C structure pointers to OCaml?
Yes it does. Just cast your pointer to the type value. In this tutorial there is an example "Pointers to C structures": http://www.linux-nantes.org/~fmonnier/OCaml/ocaml-wrapping-c.php#ref_ptr the pointer to a C struct is wrapped on the ocaml side by an abstract type called "t" here, and it is provided back to C with print_t / dump_ptr. _______________________________________________ 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
