libghc-permutation-dev binary package in Ubuntu Bionic amd64

 This library includes data types for storing permutations and
 combinations. It implements pure and impure types, the latter of
 which can be modified in-place. The library uses aggressive
 inlining and MutableByteArray#s internally, so it is very
 efficient.
 .
 The main utility of the library is converting between the linear
 representation of a permutation and a sequence of swaps. This
 allows, for instance, applying a permutation or its inverse
 to an array with O(1) memory use.
 .
 Much of the interface for the library is based on the permutation
 and combination functions in the GNU Scientific Library (GSL).
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.

Source package