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diff --git a/extern/quadriflow/3rd/lemon-1.3.1/lemon/cbc.h b/extern/quadriflow/3rd/lemon-1.3.1/lemon/cbc.h
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+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2013
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+#ifndef LEMON_CBC_H
+#define LEMON_CBC_H
+
+///\file
+///\brief Header of the LEMON-CBC mip solver interface.
+///\ingroup lp_group
+
+#include <lemon/lp_base.h>
+
+class CoinModel;
+class OsiSolverInterface;
+class CbcModel;
+
+namespace lemon {
+
+  /// \brief Interface for the CBC MIP solver
+  ///
+  /// This class implements an interface for the CBC MIP solver.
+  ///\ingroup lp_group
+  class CbcMip : public MipSolver {
+  protected:
+
+    CoinModel *_prob;
+    OsiSolverInterface *_osi_solver;
+    CbcModel *_cbc_model;
+
+  public:
+
+    /// \e
+    CbcMip();
+    /// \e
+    CbcMip(const CbcMip&);
+    /// \e
+    ~CbcMip();
+    /// \e
+    virtual CbcMip* newSolver() const;
+    /// \e
+    virtual CbcMip* cloneSolver() const;
+
+  protected:
+
+    virtual const char* _solverName() const;
+
+    virtual int _addCol();
+    virtual int _addRow();
+    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
+
+    virtual void _eraseCol(int i);
+    virtual void _eraseRow(int i);
+
+    virtual void _eraseColId(int i);
+    virtual void _eraseRowId(int i);
+
+    virtual void _getColName(int col, std::string& name) const;
+    virtual void _setColName(int col, const std::string& name);
+    virtual int _colByName(const std::string& name) const;
+
+    virtual void _getRowName(int row, std::string& name) const;
+    virtual void _setRowName(int row, const std::string& name);
+    virtual int _rowByName(const std::string& name) const;
+
+    virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
+    virtual void _getRowCoeffs(int i, InsertIterator b) const;
+
+    virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
+    virtual void _getColCoeffs(int i, InsertIterator b) const;
+
+    virtual void _setCoeff(int row, int col, Value value);
+    virtual Value _getCoeff(int row, int col) const;
+
+    virtual void _setColLowerBound(int i, Value value);
+    virtual Value _getColLowerBound(int i) const;
+    virtual void _setColUpperBound(int i, Value value);
+    virtual Value _getColUpperBound(int i) const;
+
+    virtual void _setRowLowerBound(int i, Value value);
+    virtual Value _getRowLowerBound(int i) const;
+    virtual void _setRowUpperBound(int i, Value value);
+    virtual Value _getRowUpperBound(int i) const;
+
+    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
+    virtual void _getObjCoeffs(InsertIterator b) const;
+
+    virtual void _setObjCoeff(int i, Value obj_coef);
+    virtual Value _getObjCoeff(int i) const;
+
+    virtual void _setSense(Sense sense);
+    virtual Sense _getSense() const;
+
+    virtual ColTypes _getColType(int col) const;
+    virtual void _setColType(int col, ColTypes col_type);
+
+    virtual SolveExitStatus _solve();
+    virtual ProblemType _getType() const;
+    virtual Value _getSol(int i) const;
+    virtual Value _getSolValue() const;
+
+    virtual void _clear();
+
+    virtual void _messageLevel(MessageLevel level);
+    void _applyMessageLevel();
+
+    int _message_level;
+
+
+
+  };
+
+}
+
+#endif