7.8.1 Starting at the Null Node

269. <TBST traverser null initializer 269> =
void 
tbst_t_init (struct tbst_traverser *trav, struct tbst_table *tree) 
{
  trav->tbst_table = tree;
  trav->tbst_node = NULL;
}

This code is included in 268, 395, 502, and 546.