clingo: Add support for propagator undo mode. #87
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* Add support for new clingo propagator undo mode "Always". If set, AbstractPropagator::undo() is called for all decision levels L on which AbstractPropagator::check() was called even if no watched literal was assigned on L. * NOTE: For now, undo mode "Always" does not distinguish "Total" from "Fixpoint" checks.
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Thanks, I'll have a look later. |
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I expose this functionality via the API as in this PR: potassco/clingo#409. I decided to have two functions to not break backward compatibility. |
* Replace default argument "undoMode" of enableClingoPropagatorCheck() with separate function.
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Add support for new clingo propagator undo mode "Always". If set, AbstractPropagator::undo() is called for all decision levels L on which AbstractPropagator::check() was called even if no watched literal was assigned on L.
NOTE: For now, undo mode "Always" does not distinguish "Total" from "Fixpoint" checks.
@rkaminsk Please have a look and let me know whether you think this would work for your use case(s).