From: Daniel Berger <djberg96@...>
Date: 2005-06-01T00:35:22+09:00
Subject: Passing a block to rb_funcall

Hi all,

I've seen some other threads on this subject, but none that quite
answered my question.  I'm trying to pass a variable number of
arguments and a block to a class method from within an instance method.
 In Ruby it looks like this:

# 'self' is a string
def my_method(*args, &block)
   IO.foreach(self, *args, &block)
end

In C, I was trying something like this:

static VALUE my_method(int argc, VALUE* argv, VALUE self){
   VALUE rbSep, rbBlock;
   rb_scan_args(argc, argv, "01&", &rbSep, &rbBlock);

   return rb_funcall(rb_cIO, rb_intern("foreach"), 3, self, rbSep,
rbBlock);
}

That doesn't work, however.  I've tried various combinations of arrays,
and rb_funcall2, but I haven't had any luck.

I've seen some mention of rb_iterate, but I wasn't sure how to apply it
here.

Any ideas?

Regards,

Dan