[Ecls-list] How do I pass a pointer to a foreign int into a C function?

[Warren Wilkinson]

Yes it does. Here is the updated, and now working code.  Thank you so much!

(clines "void test(int* a) {
   *a = 5;
};")

(defun set-to-five ()
  (with-foreign-object (item :int)
    (c-inline (item) (:pointer-void) :void "test(#0)" :one-liner t)  ;;
CHANGE (* :int) to :pointer-void
    (format t "~%I GOT: ~a" (deref-pointer item :int))))

Cheers,
Warren Wilkinson


On Thu, Jul 19, 2012 at 11:00 PM, Matthew Mondor
<mm_lists at pulsar-zone.net>wrote:

> On Thu, 19 Jul 2012 22:38:32 -0600
> Warren Wilkinson <warrenwilkinson at gmail.com> wrote:
>
> > * :int
>
> It's been a while since I used the FFI, but does :pointer
> or :pointer-void work here instead of * :int ?
> --
> Matt
>
>
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