addr_tree_compare
else if(fptr == &addr_tree_compare) return 1;
rbtree_init(tree, &addr_tree_compare);
int addr_tree_compare(const void* k1, const void* k2);
else if(fptr == &addr_tree_compare) return 1;
rbtree_init(tree, &addr_tree_compare);
int addr_tree_compare(const void* k1, const void* k2);