Library /sys$common/syshlp/helplib.hlb  —  RTL Routines, LIB$  LIB$LOOKUP_TREE_64
    (Alpha and I64 only.) The Look Up an Entry in a Balanced Binary
    Tree routine looks up an entry in a balanced binary tree.

    Format

      LIB$LOOKUP_TREE_64  treehead ,symbol ,user-compare-routine

                          ,new-node
Additional Information: explode extract
Returns Arguments
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