Definition: A binary search tree in which each node uses an otherwise-empty left child link to refer to the node's in-order predecessor and an empty right child link to refer to its in-order successor.
See also right-threaded tree, binary search tree.
Note: See [Knuth97, 1:320, Sect. 2.3.1]. Although the definition could refer to a multiway tree, Knuth defines a threaded tree as a binary tree.
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Entry modified 12 November 2019.
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Paul E. Black, "threaded tree", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed. 12 November 2019. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/threadedtree.html