62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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*/
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#ifndef TEMPORAL_REASONER_H
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#define TEMPORAL_REASONER_H
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#include<queue>
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#include<vector>
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#include<set>
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#include<ostream>
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#include "NestedList.h"
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extern NestedList *nl;
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namespace STP{
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enum PARelation{
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lss=0, leq=1, grt=2, geq=3, eql=4, neq=5, uni=6, inc=7, unknown=8};
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class PointAlgebraReasoner
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{
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private:
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unsigned int n;
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PARelation plusTable[7][7], multTable[7][7];
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std::queue<std::pair<int, int> > Queue;
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std::vector<std::vector<PARelation> > Table;
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std::set<int> Intervals; //CSP variables (i.e., variable indexes).
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PointAlgebraReasoner();
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public:
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PointAlgebraReasoner(unsigned int _n);
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~PointAlgebraReasoner();
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void Add(int i, int j, PARelation Rij);
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bool Close();
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bool Propagate(int i, int j);
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std::ostream& Print(std::ostream& os);
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std::vector<PARelation>& GetRelations(int varIndex);
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void Clear();
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ListExpr ExportToNestedList();
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bool ImportFromNestedList(ListExpr& args);
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bool ImportFromArray(int* args);
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};
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};
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#endif //TEMPORAL_REASONER_H
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