COIN-OR::LEMON - Graph Library

source: lemon/lemon/lp_skeleton.cc @ 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: 3.2 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#include <lemon/lp_skeleton.h>
20
21///\file
22///\brief A skeleton file to implement LP solver interfaces
23namespace lemon {
24
25  LpSolverBase* LpSkeleton::_newLp()
26  {
27    LpSolverBase *tmp=0;
28    return tmp;
29  }
30
31  LpSolverBase* LpSkeleton::_copyLp()
32  {
33    LpSolverBase *tmp=0;
34    return tmp;
35  }
36
37  int LpSkeleton::_addCol()
38  {
39    return ++col_num;
40  }
41
42  int LpSkeleton::_addRow()
43  {
44    return ++row_num;
45  }
46
47  void LpSkeleton::_eraseCol(int ) {
48  }
49
50  void LpSkeleton::_eraseRow(int) {
51  }
52
53  void LpSkeleton::_getColName(int, std::string &) const {
54  }
55
56
57  void LpSkeleton::_setColName(int, const std::string &) {
58  }
59
60  int LpSkeleton::_colByName(const std::string&) const { return -1; }
61
62
63  void LpSkeleton::_setRowCoeffs(int, ConstRowIterator, ConstRowIterator) {
64  }
65
66  void LpSkeleton::_getRowCoeffs(int, RowIterator) const {
67  }
68
69  void LpSkeleton::_setColCoeffs(int, ConstColIterator, ConstColIterator) {
70  }
71
72  void LpSkeleton::_getColCoeffs(int, ColIterator) const {
73  }
74
75  void LpSkeleton::_setCoeff(int, int, Value )
76  {
77  }
78
79  LpSkeleton::Value LpSkeleton::_getCoeff(int, int) const
80  {
81    return 0;
82  }
83
84
85  void LpSkeleton::_setColLowerBound(int, Value)
86  {
87  }
88
89  LpSkeleton::Value LpSkeleton::_getColLowerBound(int) const
90  {
91    return 0;
92  }
93
94  void LpSkeleton::_setColUpperBound(int, Value)
95  {
96  }
97
98  LpSkeleton::Value LpSkeleton::_getColUpperBound(int) const
99  {
100    return 0;
101  }
102
103//   void LpSkeleton::_setRowLowerBound(int, Value)
104//   {
105//   }
106
107//   void LpSkeleton::_setRowUpperBound(int, Value)
108//   {
109//   }
110
111  void LpSkeleton::_setRowBounds(int, Value, Value)
112  {
113  }
114
115  void LpSkeleton::_getRowBounds(int, Value&, Value&) const
116  {
117  }
118
119  void LpSkeleton::_setObjCoeff(int, Value)
120  {
121  }
122
123  LpSkeleton::Value LpSkeleton::_getObjCoeff(int) const
124  {
125    return 0;
126  }
127
128  void LpSkeleton::_setMax()
129  {
130  }
131
132  void LpSkeleton::_setMin()
133  {
134  }
135
136  bool LpSkeleton::_isMax() const
137  {
138    return true;
139  }
140
141
142  void LpSkeleton::_clearObj()
143  {
144  }
145
146  LpSkeleton::SolveExitStatus LpSkeleton::_solve()
147  {
148    return SOLVED;
149  }
150
151  LpSkeleton::Value LpSkeleton::_getPrimal(int) const
152  {
153    return 0;
154  }
155
156  LpSkeleton::Value LpSkeleton::_getDual(int) const
157  {
158    return 0;
159  }
160
161  LpSkeleton::Value LpSkeleton::_getPrimalValue() const
162  {
163    return 0;
164  }
165
166  LpSkeleton::SolutionStatus LpSkeleton::_getPrimalStatus() const
167  {
168    return UNDEFINED;
169  }
170
171  LpSkeleton::SolutionStatus LpSkeleton::_getDualStatus() const
172  {
173    return UNDEFINED;
174  }
175
176  LpSkeleton::ProblemTypes LpSkeleton::_getProblemType() const
177  {
178    return UNKNOWN;
179  }
180
181  bool LpSkeleton::_isBasicCol(int) const
182  {
183    return true;
184  }
185
186} //namespace lemon
187
Note: See TracBrowser for help on using the repository browser.