diff -r 69928a704ffb -r 7afc121e0689 lemon/lp_glpk.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lemon/lp_glpk.h	Tue Dec 02 21:40:33 2008 +0100
@@ -0,0 +1,139 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2008
+ * 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_LP_GLPK_H
+#define LEMON_LP_GLPK_H
+
+///\file
+///\brief Header of the LEMON-GLPK lp solver interface.
+///\ingroup lp_group
+
+#include <lemon/lp_base.h>
+
+// forward declaration
+#ifndef _GLP_PROB
+#define _GLP_PROB
+typedef struct { double _prob; } glp_prob;
+/* LP/MIP problem object */
+#endif
+
+namespace lemon {
+
+
+  /// \brief Interface for the GLPK LP solver
+  ///
+  /// This class implements an interface for the GLPK LP solver.
+  ///\ingroup lp_group
+  class LpGlpk : virtual public LpSolverBase {
+  protected:
+
+    typedef glp_prob LPX;
+    glp_prob* lp;
+    bool solved;
+
+  public:
+
+    typedef LpSolverBase Parent;
+
+    LpGlpk();
+    LpGlpk(const LpGlpk &);
+    ~LpGlpk();
+
+  protected:
+    virtual LpSolverBase* _newLp();
+    virtual LpSolverBase* _copyLp();
+
+    virtual int _addCol();
+    virtual int _addRow();
+    virtual void _eraseCol(int i);
+    virtual void _eraseRow(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 _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);
+    virtual void _getRowCoeffs(int i, RowIterator b) const;
+    virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);
+    virtual void _getColCoeffs(int i, ColIterator 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 _setRowBounds(int i, Value lower, Value upper);
+    virtual void _getRowBounds(int i, Value &lb, Value &ub) const;
+    virtual void _setObjCoeff(int i, Value obj_coef);
+    virtual Value _getObjCoeff(int i) const;
+    virtual void _clearObj();
+
+    ///\e
+
+    ///\todo It should be clarified
+    ///
+    virtual SolveExitStatus _solve();
+    virtual Value _getPrimal(int i) const;
+    virtual Value _getDual(int i) const;
+    virtual Value _getPrimalValue() const;
+    virtual bool _isBasicCol(int i) const;
+    ///\e
+
+    ///\todo It should be clarified
+    ///
+    virtual SolutionStatus _getPrimalStatus() const;
+    virtual SolutionStatus _getDualStatus() const;
+    virtual ProblemTypes _getProblemType() const;
+
+    virtual void _setMax();
+    virtual void _setMin();
+
+    virtual bool _isMax() const;
+
+  public:
+    ///Set the verbosity of the messages
+
+    ///Set the verbosity of the messages
+    ///
+    ///\param m is the level of the messages output by the solver routines.
+    ///The possible values are:
+    ///- 0 --- no output (default value)
+    ///- 1 --- error messages only
+    ///- 2 --- normal output
+    ///- 3 --- full output (includes informational messages)
+    void messageLevel(int m);
+    ///Turns on or off the presolver
+
+    ///Turns on (\c b is \c true) or off (\c b is \c false) the presolver
+    ///
+    ///The presolver is off by default.
+    void presolver(bool b);
+
+    ///Pointer to the underlying GLPK data structure.
+    LPX *lpx() {return lp;}
+
+    ///Returns the constraint identifier understood by GLPK.
+    int lpxRow(Row r) { return _lpId(r); }
+
+    ///Returns the variable identifier understood by GLPK.
+    int lpxCol(Col c) { return _lpId(c); }
+  };
+} //END OF NAMESPACE LEMON
+
+#endif //LEMON_LP_GLPK_H
+