Method begin

source/opt/tree_iterator.h:150–152

  using value_type = NodeTy;

  static inline PostOrderTreeDFIterator begin(NodePtr top_node) {
    return PostOrderTreeDFIterator(top_node);
  }

  static inline PostOrderTreeDFIterator end(NodePtr sentinel_node) {
    return PostOrderTreeDFIterator(sentinel_node, false);