Composition trees for arbitrary monoids.

LTS Haskell 6.31:
Stackage Nightly 2016-05-25:
Latest on Hackage:
BSD3 licensed by Liam O'Connor

A compositions list or composition tree is a list data type where the elements are monoids, and the mconcat of any contiguous sublist can be computed in logarithmic time. A common use case of this type is in a wiki, version control system, or collaborative editor, where each change or delta would be stored in a list, and it is sometimes necessary to compute the composed delta between any two versions.

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Used by 1 package:
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