COIN-OR::LEMON - Graph Library

source: lemon/lemon/lp_cplex.h @ 481:7afc121e0689

Last change on this file since 481:7afc121e0689 was 481:7afc121e0689, checked in by Balazs Dezso <deba@…>, 11 years ago

Port LP and MIP solvers from SVN -r3509 (#44)

File size: 3.1 KB
Line 
1/* -*- mode: C++; indent-tabs-mode: nil; -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library.
4 *
5 * Copyright (C) 2003-2008
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19#ifndef LEMON_LP_CPLEX_H
20#define LEMON_LP_CPLEX_H
21
22///\file
23///\brief Header of the LEMON-CPLEX lp solver interface.
24
25#include <lemon/lp_base.h>
26
27struct cpxenv;
28struct cpxlp;
29
30namespace lemon {
31
32
33  /// \brief Interface for the CPLEX solver
34  ///
35  /// This class implements an interface for the CPLEX LP solver.
36  class LpCplex :virtual public LpSolverBase {
37
38  public:
39
40    typedef LpSolverBase Parent;
41
42    /// \e
43    int status;
44    cpxenv* env;
45    cpxlp* lp;
46
47
48    /// \e
49    LpCplex();
50    /// \e
51    LpCplex(const LpCplex&);
52    /// \e
53    ~LpCplex();
54
55  protected:
56    virtual LpSolverBase* _newLp();
57    virtual LpSolverBase* _copyLp();
58
59
60    virtual int _addCol();
61    virtual int _addRow();
62    virtual void _eraseCol(int i);
63    virtual void _eraseRow(int i);
64    virtual void _getColName(int col, std::string & name) const;
65    virtual void _setColName(int col, const std::string & name);
66    virtual int _colByName(const std::string& name) const;
67    virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);
68    virtual void _getRowCoeffs(int i, RowIterator b) const;
69    virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);
70    virtual void _getColCoeffs(int i, ColIterator b) const;
71    virtual void _setCoeff(int row, int col, Value value);
72    virtual Value _getCoeff(int row, int col) const;
73
74    virtual void _setColLowerBound(int i, Value value);
75    virtual Value _getColLowerBound(int i) const;
76    virtual void _setColUpperBound(int i, Value value);
77    virtual Value _getColUpperBound(int i) const;
78
79//     virtual void _setRowLowerBound(int i, Value value);
80//     virtual void _setRowUpperBound(int i, Value value);
81    virtual void _setRowBounds(int i, Value lower, Value upper);
82    virtual void _getRowBounds(int i, Value &lb, Value &ub) const;
83    virtual void _setObjCoeff(int i, Value obj_coef);
84    virtual Value _getObjCoeff(int i) const;
85    virtual void _clearObj();
86
87
88    virtual SolveExitStatus _solve();
89    virtual Value _getPrimal(int i) const;
90    virtual Value _getDual(int i) const;
91    virtual Value _getPrimalValue() const;
92    virtual bool _isBasicCol(int i) const;
93
94    virtual SolutionStatus _getPrimalStatus() const;
95    virtual SolutionStatus _getDualStatus() const;
96    virtual ProblemTypes _getProblemType() const;
97
98
99    virtual void _setMax();
100    virtual void _setMin();
101
102    virtual bool _isMax() const;
103
104  public:
105
106    cpxenv* cplexEnv() { return env; }
107    cpxlp* cplexLp() { return lp; }
108
109  };
110} //END OF NAMESPACE LEMON
111
112#endif //LEMON_LP_CPLEX_H
113
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