/* SibTreeNode.java */

/**
 * A SibTreeNode object is a node in a SibTree (sibling-based general tree).
 * @author Jonathan Shewchuk
 */

package tree;

class SibTreeNode {

  Object item;
  SibTreeNode parent;
  SibTreeNode firstChild;
  SibTreeNode nextSibling;
  boolean live;

  /**
   * Construct a SibTreeNode referring to a given item.
   */
  SibTreeNode(Object value) {
    item = value;
    parent = null;
    firstChild = null;
    nextSibling = null;
    live = true;
  }

}