rbtree: Introduce _gtk_rbtree_is_nil()

Makes for more readable code than "== tree->nil" and allows removing the nil member later.
2011-11-22 02:17:05 +01:00
parent c3056951db
commit a4630d0e7b
4 changed files with 122 additions and 116 deletions
--- a/gtk/gtkrbtree.h
+++ b/gtk/gtkrbtree.h
@ -114,6 +114,7 @@ GtkRBNode *_gtk_rbtree_insert_after     (GtkRBTree              *tree,
 					 gboolean                valid);
 void       _gtk_rbtree_remove_node      (GtkRBTree              *tree,
 					 GtkRBNode              *node);
+gboolean   _gtk_rbtree_is_nil           (GtkRBNode              *node);
 void       _gtk_rbtree_reorder          (GtkRBTree              *tree,
 					 gint                   *new_order,
 					 gint                    length);