3bafe693ef
In order to reuse the computation of the intersection between kripke and twa efficiently, we use template inheritance through the "mixin templates" technique. * spot/Makefile.am, spot/mc/Makefile.am, spot/mc/ec.hh, spot/mc/unionfind.cc, spot/mc/unionfind.hh: here.
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// -*- coding: utf-8 -*-
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// Copyright (C) 2015, 2016 Laboratoire de Recherche et
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// Developpement de l'Epita
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <spot/misc/common.hh>
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#include <vector>
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namespace spot
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{
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/// \brief This Union-Find data structure is a particular
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/// union-find, dedicated for emptiness checks below, see ec.hh. The
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/// key of this union-find is int. Moreover, we suppose that only
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/// consecutive int are inserted. This union-find includes most of
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/// the classical optimisations (IPC, LR, PC, MS).
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class SPOT_API int_unionfind final
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{
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private:
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// Store the parent relation, i.e. -1 or x < id.size()
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std::vector<int> id;
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// id of a specially managed partition of "dead" elements
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const int DEAD = 0;
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int root(int i);
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public:
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int_unionfind();
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void makeset(int e);
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bool unite(int e1, int e2);
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void markdead(int e);
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bool sameset(int e1, int e2);
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bool isdead(int e);
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};
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}
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