Fix for null-pointe-p vs null in gtk.tree-model

diff --git a/gtk/gtk.tree-model.lisp b/gtk/gtk.tree-model.lisp
index 788e028..6cbdb96 100644 (file)
--- a/gtk/gtk.tree-model.lisp
+++ b/gtk/gtk.tree-model.lisp
@@ -90,7 +90,7 @@
     t))
 
 (defmethod tree-model-iter-n-children-impl ((model array-list-store) iter)
-  (if (null-pointer-p iter)
+  (if (null iter)
       (length (store-items model))
       0))