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Thierry Geraud authored
* mln/canvas/morpho/algebraic_union_find.hh (activity): New. This allows for accumulators that cannot properly implement set_value to work with algebraic filters and levelings. * mln/test/predicate.hh: Fix signature. git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@3175 4aad255d-cdde-0310-9447-f3009e2ae8c0
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