diff options
| author | Wouter Verhelst <w@uter.be> | 2016-03-31 11:09:41 +0200 |
|---|---|---|
| committer | Matthias Clasen <mclasen@redhat.com> | 2016-04-19 10:22:00 -0400 |
| commit | 139cb2a51021f766337b2283263aa976a3f2f145 (patch) | |
| tree | 9c5b97dbf6661cbfa963d559b5687bec99a54cf1 | |
| parent | a2a369ae1c9b393297fed6bbdb181a9189714e62 (diff) | |
| download | gtk+-139cb2a51021f766337b2283263aa976a3f2f145.tar.gz | |
Clarify that one cannot use the same variable
A naive way to perform an action on all parent nodes of a given node
could be to do:
while(gtk_tree_model_iter_parent(model, &iter, &iter)) {
/* perform some action on iter here */
}
However, since gtk_tree_model_iter_parent() will initialize the iterator
pointed to by the second parameter before performing the lookup, this
will not work.
Explicitly document this behaviour.
Signed-off-by: Wouter Verhelst <w@uter.be>
https://bugzilla.gnome.org/show_bug.cgi?id=573380
| -rw-r--r-- | gtk/gtktreemodel.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gtk/gtktreemodel.c b/gtk/gtktreemodel.c index 5e447b9a2e..500658b5c1 100644 --- a/gtk/gtktreemodel.c +++ b/gtk/gtktreemodel.c @@ -1640,6 +1640,9 @@ gtk_tree_model_iter_nth_child (GtkTreeModel *tree_model, * @child will remain a valid node after this function has been * called. * + * @iter will be initialized before the lookup is performed, so @child + * and @iter cannot point to the same memory location. + * * Returns: %TRUE, if @iter is set to the parent of @child */ gboolean |