COIN-OR::LEMON - Graph Library

source: lemon-0.x/src/work/athos/lp/lp_solver_skeleton.h @ 1303:9bcc455da4f5

Last change on this file since 1303:9bcc455da4f5 was 1303:9bcc455da4f5, checked in by Alpar Juttner, 15 years ago

SolutionStatus? -> SolveExitStatus?
SolutionType? -> SolutionStatus?

File size: 2.9 KB
Line 
1/* -*- C++ -*-
2 * src/lemon/lp_solver_skeleton.h
3 * - Part of LEMON, a generic C++ optimization library
4 *
5 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
6 * (Egervary Combinatorial Optimization Research Group, EGRES).
7 *
8 * Permission to use, modify and distribute this software is granted
9 * provided that this copyright notice appears in all copies. For
10 * precise terms see the accompanying LICENSE file.
11 *
12 * This software is provided "AS IS" with no warranty of any kind,
13 * express or implied, and with no claim as to its suitability for any
14 * purpose.
15 *
16 */
17
18#ifndef LEMON_LP_SOLVER_SKELETON
19#define LEMON_LP_SOLVER_SKELETON
20
21#include"lp_base.h"
22
23///\file
24///\brief A skeleton file to implement LP solver interfaces
25namespace lemon {
26 
27  ///A skeleton class to implement LP solver interfaces
28  class LpSolverSkeleton :public LpSolverBase {
29    int col_num,row_num;
30   
31  protected:
32    /// \e
33    virtual int _addCol();
34    /// \e
35    virtual int _addRow();
36    /// \e
37
38    /// \warning Arrays are indexed from 1 (datum at index 0 is ignored)
39    ///
40    virtual void _setRowCoeffs(int i,
41                               int length,
42                               int  const * indices,
43                               Value  const * values );
44    /// \e
45
46    /// \warning Arrays are indexed from 1 (datum at index 0 is ignored)
47    ///
48    virtual void _setColCoeffs(int i,
49                               int length,
50                               int  const * indices,
51                               Value  const * values );
52   
53    /// \e
54
55    /// The lower bound of a variable (column) have to be given by an
56    /// extended number of type Value, i.e. a finite number of type
57    /// Value or -\ref INF.
58    virtual void _setColLowerBound(int i, Value value);
59    /// \e
60
61    /// The upper bound of a variable (column) have to be given by an
62    /// extended number of type Value, i.e. a finite number of type
63    /// Value or \ref INF.
64    virtual void _setColUpperBound(int i, Value value);
65    /// \e
66
67    /// The lower bound of a linear expression (row) have to be given by an
68    /// extended number of type Value, i.e. a finite number of type
69    /// Value or -\ref INF.
70    virtual void _setRowLowerBound(int i, Value value);
71    /// \e
72
73    /// The upper bound of a linear expression (row) have to be given by an
74    /// extended number of type Value, i.e. a finite number of type
75    /// Value or \ref INF.
76    virtual void _setRowUpperBound(int i, Value value);
77
78    /// \e
79    virtual void _setObjCoeff(int i, Value obj_coef);
80
81    ///\e
82   
83    ///\bug Wrong interface
84    ///
85    virtual SolveExitStatus _solve();
86
87    ///\e
88
89    ///\bug Wrong interface
90    ///
91    virtual Value _getPrimal(int i);
92    ///\e
93
94    ///\bug Wrong interface
95    ///
96    virtual SolutionStatus _getPrimalType();
97
98  public:
99    LpSolverSkeleton() : LpSolverBase(), col_num(0), row_num(0) {}
100  }; 
101
102} //namespace lemon
103
104#endif // LEMON_LP_SOLVER_SKELETON
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