[ library(m_tree234) | Reference Manual | Alphabetic Index ]
count(+Tree, ?Count)
Count the number of elements in a tree.
- Tree
- A 2-3-4 tree
- Count
- The number of elements in Tree
Description
Counts the number of elements in the tree Tree, and attempts to
unify the result with Count.
This predicate should only be called with trees created by other
predicates from the tree234 module.
Fail Conditions
Fails if Count does not unify with the number of elements in Tree.
Resatisfiable
no