COIN-OR::LEMON - Graph Library

source: lemon-0.x/lemon/lp_soplex.h @ 2364:3a5e67bd42d2

Last change on this file since 2364:3a5e67bd42d2 was 2364:3a5e67bd42d2, checked in by Balazs Dezso, 13 years ago

Lp row and col getter function
lp section reader and writer for lemon IO

File size: 2.9 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_SOPLEX_H
20#define LEMON_LP_SOPLEX_H
21
22///\file
23///\brief Header of the LEMON-SOPLEX lp solver interface.
24
25#include <vector>
26#include <string>
27
28#include <lemon/lp_base.h>
29
30// Forward declaration
31namespace soplex {
32  class SoPlex;
33}
34
35namespace lemon {
36
37  /// \brief Interface for the SOPLEX solver
38  ///
39  /// This class implements an interface for the SOPLEX LP solver.
40  class LpSoplex :virtual public LpSolverBase {
41  protected:
42
43    _lp_bits::RelocateIdHandler relocateIdHandler;
44
45    soplex::SoPlex* soplex;
46    bool solved;
47
48    std::vector<std::string> colNames;
49
50    std::vector<Value> primal_value;
51    std::vector<Value> dual_value;
52
53
54  public:
55
56    typedef LpSolverBase Parent;
57   
58
59    /// \e
60    LpSoplex();
61    /// \e
62    ~LpSoplex();
63
64  protected:
65
66    virtual LpSolverBase &_newLp();
67    virtual LpSolverBase &_copyLp();
68
69    virtual int _addCol();
70    virtual int _addRow();
71    virtual void _eraseCol(int i);
72    virtual void _eraseRow(int i);
73    virtual void _getColName(int col, std::string & name);
74    virtual void _setColName(int col, const std::string & name);
75    virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);
76    virtual void _getRowCoeffs(int i, RowIterator b);
77    virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);
78    virtual void _getColCoeffs(int i, ColIterator b);
79    virtual void _setCoeff(int row, int col, Value value);
80    virtual Value _getCoeff(int row, int col);
81    virtual void _setColLowerBound(int i, Value value);
82    virtual Value _getColLowerBound(int i);
83    virtual void _setColUpperBound(int i, Value value);
84    virtual Value _getColUpperBound(int i);
85    virtual void _setRowBounds(int i, Value lower, Value upper);
86    virtual void _getRowBounds(int i, Value &lower, Value &upper);
87    virtual void _setObjCoeff(int i, Value obj_coef);
88    virtual Value _getObjCoeff(int i);
89    virtual void _clearObj();
90   
91    virtual SolveExitStatus _solve();
92    virtual Value _getPrimal(int i);
93    virtual Value _getDual(int i);
94    virtual Value _getPrimalValue();
95    virtual bool _isBasicCol(int i);
96   
97    virtual SolutionStatus _getPrimalStatus();
98    virtual SolutionStatus _getDualStatus();
99    virtual ProblemTypes _getProblemType();
100
101   
102    virtual void _setMax();
103    virtual void _setMin();
104    virtual bool _isMax();
105
106  };
107} //END OF NAMESPACE LEMON
108
109#endif //LEMON_LP_SOPLEX_H
110
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