update avl implementation from packetbb

1 files changed, 4 insertions, 4 deletions

diff --git a/avl.h b/avl.h
index 1c57604..80a29b7 100644
--- a/avl.h
+++ b/avl.h
@@ -155,12 +155,12 @@ enum avl_find_mode {
 };
 
 void EXPORT(avl_init)(struct avl_tree *, avl_tree_comp, bool, void *);
-struct avl_node *EXPORT(avl_find)(struct avl_tree *, const void *);
-struct avl_node *EXPORT(avl_find_greaterequal)(struct avl_tree *tree, const void *key);
-struct avl_node *EXPORT(avl_find_lessequal)(struct avl_tree *tree, const void *key);
+struct avl_node *EXPORT(avl_find)(const struct avl_tree *, const void *);
+struct avl_node *EXPORT(avl_find_greaterequal)(const struct avl_tree *tree, const void *key);
+struct avl_node *EXPORT(avl_find_lessequal)(const struct avl_tree *tree, const void *key);
 int EXPORT(avl_insert)(struct avl_tree *, struct avl_node *);
 void EXPORT(avl_delete)(struct avl_tree *, struct avl_node *);
-void *EXPORT(__avl_find_element)(struct avl_tree *tree, const void *key,
+void *EXPORT(__avl_find_element)(const struct avl_tree *tree, const void *key,
     size_t offset, enum avl_find_mode mode);
 
 /**