filter-new usage

[Puneet Goyal]

Greetings All

I am trying to use the method 'filter-new' and am getting a seg-fault.

$ guile-gnome-0 
guile> (use-modules (gnome gtk))
(gnome gtk): [goops gobject glib atk pango gdk gtk support]
guile> (define model (gtk-tree-store-new (list gtype:gchararray)))
guile> (define fmodel  (filter-new model #f)))
Segmentation fault
$ 

I am not sure if I have passed a legal second argument (#f) to the
method. I wanted to pass an equevalent of NULL there.

Regards
Puneet

For reference ....

gtk_tree_model_filter_new ()

GtkTreeModel* gtk_tree_model_filter_new     (GtkTreeModel *child_model,
                                             GtkTreePath *root);

Creates a new GtkTreeModel, with child_model as the child_model and
root as the virtual root.

child_model :   A GtkTreeModel.
root :  A GtkTreePath or NULL.
Returns :       A new GtkTreeModel.

Since 2.4