-/* Recalculates NODE's augmentation based on NODE's data and that
- of its LEFT and RIGHT children, with the tree's AUX. */
-typedef void abt_reaugment_func (struct abt_node *node,
- const struct abt_node *left,
- const struct abt_node *right,
- const void *aux);
+/* Recalculates NODE's augmentation based on NODE's data and that of its left
+ and right children NODE->down[0] and NODE[1], respectively, with the tree's
+ AUX. */
+typedef void abt_reaugment_func (struct abt_node *node, const void *aux);