COIN-OR::LEMON - Graph Library

source: lemon-0.x/src/lemon/lp_glpk.h @ 1312:48f9299b390d

Last change on this file since 1312:48f9299b390d was 1312:48f9299b390d, checked in by Alpar Juttner, 16 years ago

max() [_setMax()], min() [_setMin()], primalValue() [_getPrimalValue()] added

File size: 2.4 KB
Line 
1/* -*- C++ -*-
2 * src/lemon/lp_glpk.h - Part of LEMON, a generic C++ optimization library
3 *
4 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
5 * (Egervary Combinatorial Optimization Research Group, EGRES).
6 *
7 * Permission to use, modify and distribute this software is granted
8 * provided that this copyright notice appears in all copies. For
9 * precise terms see the accompanying LICENSE file.
10 *
11 * This software is provided "AS IS" with no warranty of any kind,
12 * express or implied, and with no claim as to its suitability for any
13 * purpose.
14 *
15 */
16
17#ifndef LEMON_LP_GLPK_H
18#define LEMON_LP_GLPK_H
19
20///\file
21///\brief Header of the LEMON-GLPK lp solver interface.
22
23#include "lp_base.h"
24extern "C" {
25#include "glpk.h"
26}
27
28namespace lemon {
29
30
31  /// \brief Wrapper for GLPK solver
32  ///
33  /// This class implements a lemon wrapper for GLPK.
34  class LpGlpk : public LpSolverBase {
35
36  public:
37
38    typedef LpSolverBase Parent;
39   
40    /// \e
41    LPX* lp;
42
43    /// \e
44    LpGlpk() : Parent(),
45                        lp(lpx_create_prob()) {
46      lpx_set_int_parm(lp, LPX_K_DUAL, 1);
47    }
48    /// \e
49    ~LpGlpk() {
50      lpx_delete_prob(lp);
51    }
52
53  protected:
54    virtual int _addCol();
55    virtual int _addRow();
56    virtual void _setRowCoeffs(int i,
57                               int length,
58                               const int   * indices,
59                               const Value   * values );
60    virtual void _setColCoeffs(int i,
61                               int length,
62                               const int   * indices,
63                               const Value   * values);
64    virtual void _setColLowerBound(int i, Value value);
65    virtual void _setColUpperBound(int i, Value value);
66    virtual void _setRowLowerBound(int i, Value value);
67    virtual void _setRowUpperBound(int i, Value value);
68    virtual void _setObjCoeff(int i, Value obj_coef);
69    ///\e
70   
71    ///\bug Unimplemented
72    ///
73    virtual SolveExitStatus _solve();
74    ///\e
75   
76    ///\bug Unimplemented
77    ///
78    virtual Value _getPrimal(int i);
79    ///\e
80   
81    ///\bug Unimplemented
82    ///
83    virtual Value _getPrimalValue();
84    ///\e
85   
86    ///\bug Unimplemented
87    ///
88    virtual SolutionStatus _getPrimalStatus();
89
90    ///\e
91   
92    ///\bug Unimplemented
93    ///
94    virtual void _setMax();
95    ///\e
96   
97    ///\bug Unimplemented
98    ///
99    virtual void _setMin();
100 
101  };
102} //END OF NAMESPACE LEMON
103
104#endif //LEMON_LP_GLPK_H
105
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