COIN-OR::LEMON - Graph Library

source: lemon-0.x/lemon/lp_cplex.h @ 2254:50cb2b90daa9

Last change on this file since 2254:50cb2b90daa9 was 2218:50f1a780a5ff, checked in by athos, 13 years ago

Interface to the cplex MIP solver: it is little, a bit sour but it is ours.

File size: 2.7 KB
Line 
1/* -*- C++ -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library
4 *
5 * Copyright (C) 2003-2006
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
27extern "C" {
28#include <ilcplex/cplex.h>
29}
30
31namespace lemon {
32
33
34  /// \brief Interface for the CPLEX solver
35  ///
36  /// This class implements an interface for the CPLEX LP solver.
37  class LpCplex :virtual public LpSolverBase {
38
39  public:
40
41    typedef LpSolverBase Parent;
42   
43    /// \e
44    int status;
45    CPXENVptr env;
46    CPXLPptr lp;
47
48
49    /// \e
50    LpCplex();
51    /// \e
52    ~LpCplex();
53
54  protected:
55    virtual LpSolverBase &_newLp();
56    virtual LpSolverBase &_copyLp();
57
58    virtual int _addCol();
59    virtual int _addRow();
60    virtual void _eraseCol(int i);
61    virtual void _eraseRow(int i);
62    virtual void _getColName(int col,       std::string & name);
63    virtual void _setColName(int col, const std::string & name);
64    virtual void _setRowCoeffs(int i,
65                               int length,
66                               const int   * indices,
67                               const Value   * values );
68    virtual void _setColCoeffs(int i,
69                               int length,
70                               const int   * indices,
71                               const Value   * values);
72    virtual void _setCoeff(int row, int col, Value value);
73    virtual void _setColLowerBound(int i, Value value);
74    virtual void _setColUpperBound(int i, Value value);
75//     virtual void _setRowLowerBound(int i, Value value);
76//     virtual void _setRowUpperBound(int i, Value value);
77    virtual void _setRowBounds(int i, Value lower, Value upper);
78    virtual void _setObjCoeff(int i, Value obj_coef);
79    virtual void _clearObj();
80    ///\e
81   
82    virtual SolveExitStatus _solve();
83    virtual Value _getPrimal(int i);
84    virtual Value _getDual(int i);
85    virtual Value _getPrimalValue();
86    virtual bool _isBasicCol(int i);
87   
88    virtual SolutionStatus _getPrimalStatus();
89    virtual SolutionStatus _getDualStatus();
90    virtual ProblemTypes _getProblemType();
91
92   
93    virtual void _setMax();
94    virtual void _setMin();
95
96  };
97} //END OF NAMESPACE LEMON
98
99#endif //LEMON_LP_CPLEX_H
100
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