* Delete all keys
*/
for (i = 0; i < n_keys; i++)
- rb_tree_del (rt, i);
+ {
+ rb_tree_del (rt, i);
+ if (rt->nodes[RBTREE_TNIL_INDEX].color != RBTREE_BLACK)
+ RBTREE_TEST (0, "tnil should be black");
+ }
RBTREE_TEST (rb_tree_n_nodes (rt) == 1, "number nodes %u is %u",
1, rb_tree_n_nodes (rt));