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CoinPresolveDupcol.hpp
Go to the documentation of this file.
1 /* $Id: CoinPresolveDupcol.hpp 1854 2015-12-18 14:18:54Z forrest $ */
2 // Copyright (C) 2002, International Business Machines
3 // Corporation and others. All Rights Reserved.
4 // This code is licensed under the terms of the Eclipse Public License (EPL).
5
6 #ifndef CoinPresolveDupcol_H
7 #define CoinPresolveDupcol_H
8
9 #include "CoinPresolveMatrix.hpp"
10
15 #define DUPCOL 10
16
32 class dupcol_action : public CoinPresolveAction {
33 dupcol_action();
34 dupcol_action(const dupcol_action& rhs);
35 dupcol_action& operator=(const dupcol_action& rhs);
36
37 struct action {
38 double thislo;
39 double thisup;
40 double lastlo;
41 double lastup;
42 int ithis;
43 int ilast;
44
45 double *colels;
46 int nincol;
47 };
48
49 const int nactions_;
50 // actions_ is owned by the class and must be deleted at destruction
51 const action *const actions_;
52
53 dupcol_action(int nactions, const action *actions,
54 const CoinPresolveAction *next) :
55 CoinPresolveAction(next),
56 nactions_(nactions),
57 actions_(actions) {}
58
59 public:
60 const char *name() const;
61
62 static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
63 const CoinPresolveAction *next);
64
65 void postsolve(CoinPostsolveMatrix *prob) const;
66
67 virtual ~dupcol_action();
68
69 };
70
71
87 class duprow_action : public CoinPresolveAction {
88 struct action {
89 int row;
90 double lbound;
91 double ubound;
92 };
93
94 const int nactions_;
95 const action *const actions_;
96
97 duprow_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
98 duprow_action(int nactions,
99 const action *actions,
100 const CoinPresolveAction *next) :
101 CoinPresolveAction(next),
102 nactions_(nactions), actions_(actions) {}
103
104 public:
105 const char *name() const;
106
107 static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
108 const CoinPresolveAction *next);
109
110 void postsolve(CoinPostsolveMatrix *prob) const;
111
112 //~duprow_action() { delete[]actions_; }
113 };
114
115 class duprow3_action : public CoinPresolveAction {
116 struct action {
117 int row;
118 double lbound;
119 double ubound;
120 };
121
122 const int nactions_;
123 const action *const actions_;
124
125 duprow3_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
126 duprow3_action(int nactions,
127 const action *actions,
128 const CoinPresolveAction *next) :
129 CoinPresolveAction(next),
130 nactions_(nactions), actions_(actions) {}
131
132 public:
133 const char *name() const;
134
135 static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
136 const CoinPresolveAction *next);
137
138 void postsolve(CoinPostsolveMatrix *prob) const;
139
140 //~duprow_action() { delete[]actions_; }
141 };
142
153 class gubrow_action : public CoinPresolveAction {
154 struct action {
155 double rhs;
156 // last is row itself
157 int * deletedRow;
158 double * rowels;
159 int * indices; // indices in gub row
160 int nDrop;
161 int ninrow;
162 };
163
164 const int nactions_;
165 const action *const actions_;
166
167 //gubrow_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
168 gubrow_action(int nactions,
169 const action *actions,
170 const CoinPresolveAction *next) :
171 CoinPresolveAction(next),
172 nactions_(nactions), actions_(actions) {}
173
174 public:
175 const char *name() const;
176
177 static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
178 const CoinPresolveAction *next);
179
180 void postsolve(CoinPostsolveMatrix *prob) const;
181
182 virtual ~gubrow_action();
183 };
184
195 class twoxtwo_action : public CoinPresolveAction {
196 struct action {
197 double lbound_row;
198 double ubound_row;
199 double lbound_col;
200 double ubound_col;
201 double cost_col;
202 double cost_othercol;
203 int row;
204 int col;
205 int othercol;
206 };
207
208 const int nactions_;
209 const action *const actions_;
210
211 twoxtwo_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
212 twoxtwo_action(int nactions,
213 const action *actions,
214 const CoinPresolveAction *next) :
215 CoinPresolveAction(next),
216 nactions_(nactions), actions_(actions) {}
217
218 public:
219 const char *name() const;
220
221 static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
222 const CoinPresolveAction *next);
223
224 void postsolve(CoinPostsolveMatrix *prob) const;
225
226 ~twoxtwo_action() { delete [] actions_; }
227 };
228
229 #endif
230
gubrow_action::action::ninrow
int ninrow
Definition: CoinPresolveDupcol.hpp:161
dupcol_action::actions_
const action *const actions_
Definition: CoinPresolveDupcol.hpp:51
twoxtwo_action::action::col
int col
Definition: CoinPresolveDupcol.hpp:204
duprow3_action::action::row
int row
Definition: CoinPresolveDupcol.hpp:117
twoxtwo_action::presolve
static const CoinPresolveAction * presolve(CoinPresolveMatrix *prob, const CoinPresolveAction *next)
dupcol_action::~dupcol_action
virtual ~dupcol_action()
duprow3_action::duprow3_action
duprow3_action()
Definition: CoinPresolveDupcol.hpp:125
twoxtwo_action::twoxtwo_action
twoxtwo_action()
Definition: CoinPresolveDupcol.hpp:211
gubrow_action
Detect and remove entries whose sum is known.
Definition: CoinPresolveDupcol.hpp:153
dupcol_action::action::thisup
double thisup
Definition: CoinPresolveDupcol.hpp:39
duprow_action::action
Definition: CoinPresolveDupcol.hpp:88
twoxtwo_action::~twoxtwo_action
~twoxtwo_action()
Definition: CoinPresolveDupcol.hpp:226
duprow_action::nactions_
const int nactions_
Definition: CoinPresolveDupcol.hpp:94
duprow3_action::presolve
static const CoinPresolveAction * presolve(CoinPresolveMatrix *prob, const CoinPresolveAction *next)
CoinPresolveAction
Abstract base class of all presolve routines.
Definition: CoinPresolveMatrix.hpp:155
dupcol_action::action::colels
double * colels
Definition: CoinPresolveDupcol.hpp:45
twoxtwo_action::twoxtwo_action
twoxtwo_action(int nactions, const action *actions, const CoinPresolveAction *next)
Definition: CoinPresolveDupcol.hpp:212
dupcol_action::action::lastlo
double lastlo
Definition: CoinPresolveDupcol.hpp:40
dupcol_action::action::ithis
int ithis
Definition: CoinPresolveDupcol.hpp:42
twoxtwo_action::nactions_
const int nactions_
Definition: CoinPresolveDupcol.hpp:208
duprow3_action::action::ubound
double ubound
Definition: CoinPresolveDupcol.hpp:119
duprow3_action::postsolve
void postsolve(CoinPostsolveMatrix *prob) const
Apply the postsolve transformation for this particular presolve action.
gubrow_action::action::nDrop
int nDrop
Definition: CoinPresolveDupcol.hpp:160
gubrow_action::name
const char * name() const
A name for debug printing.
duprow3_action::action
Definition: CoinPresolveDupcol.hpp:116
gubrow_action::nactions_
const int nactions_
Definition: CoinPresolveDupcol.hpp:164
dupcol_action::dupcol_action
dupcol_action()
dupcol_action::action
Definition: CoinPresolveDupcol.hpp:37
CoinPresolveMatrix.hpp
Declarations for CoinPresolveMatrix and CoinPostsolveMatrix and their common base class CoinPrePostso...
dupcol_action::nactions_
const int nactions_
Definition: CoinPresolveDupcol.hpp:49
duprow3_action
Definition: CoinPresolveDupcol.hpp:115
duprow3_action::nactions_
const int nactions_
Definition: CoinPresolveDupcol.hpp:122
twoxtwo_action::action::othercol
int othercol
Definition: CoinPresolveDupcol.hpp:205
duprow_action::postsolve
void postsolve(CoinPostsolveMatrix *prob) const
Apply the postsolve transformation for this particular presolve action.
gubrow_action::presolve
static const CoinPresolveAction * presolve(CoinPresolveMatrix *prob, const CoinPresolveAction *next)
duprow3_action::action::lbound
double lbound
Definition: CoinPresolveDupcol.hpp:118
twoxtwo_action::action::row
int row
Definition: CoinPresolveDupcol.hpp:203
duprow_action::action::row
int row
Definition: CoinPresolveDupcol.hpp:89
gubrow_action::~gubrow_action
virtual ~gubrow_action()
gubrow_action::postsolve
void postsolve(CoinPostsolveMatrix *prob) const
Apply the postsolve transformation for this particular presolve action.
duprow_action::actions_
const action *const actions_
Definition: CoinPresolveDupcol.hpp:95
gubrow_action::action
Definition: CoinPresolveDupcol.hpp:154
CoinPresolveAction::next
const CoinPresolveAction * next
The next presolve transformation.
Definition: CoinPresolveMatrix.hpp:171
CoinPostsolveMatrix
Augments CoinPrePostsolveMatrix with information about the problem that is only needed during postsol...
Definition: CoinPresolveMatrix.hpp:1421
dupcol_action
Detect and remove duplicate columns.
Definition: CoinPresolveDupcol.hpp:32
duprow3_action::duprow3_action
duprow3_action(int nactions, const action *actions, const CoinPresolveAction *next)
Definition: CoinPresolveDupcol.hpp:126
dupcol_action::postsolve
void postsolve(CoinPostsolveMatrix *prob) const
Apply the postsolve transformation for this particular presolve action.
twoxtwo_action::action::lbound_row
double lbound_row
Definition: CoinPresolveDupcol.hpp:197
duprow_action
Detect and remove duplicate rows.
Definition: CoinPresolveDupcol.hpp:87
twoxtwo_action::postsolve
void postsolve(CoinPostsolveMatrix *prob) const
Apply the postsolve transformation for this particular presolve action.
dupcol_action::operator=
dupcol_action & operator=(const dupcol_action &rhs)
gubrow_action::gubrow_action
gubrow_action(int nactions, const action *actions, const CoinPresolveAction *next)
Definition: CoinPresolveDupcol.hpp:168
CoinPresolveMatrix
Augments CoinPrePostsolveMatrix with information about the problem that is only needed during presolv...
Definition: CoinPresolveMatrix.hpp:835
twoxtwo_action::action::cost_othercol
double cost_othercol
Definition: CoinPresolveDupcol.hpp:202
dupcol_action::name
const char * name() const
A name for debug printing.
gubrow_action::action::deletedRow
int * deletedRow
Definition: CoinPresolveDupcol.hpp:157
dupcol_action::action::lastup
double lastup
Definition: CoinPresolveDupcol.hpp:41
duprow_action::presolve
static const CoinPresolveAction * presolve(CoinPresolveMatrix *prob, const CoinPresolveAction *next)
gubrow_action::action::rhs
double rhs
Definition: CoinPresolveDupcol.hpp:155
gubrow_action::actions_
const action *const actions_
Definition: CoinPresolveDupcol.hpp:165
dupcol_action::presolve
static const CoinPresolveAction * presolve(CoinPresolveMatrix *prob, const CoinPresolveAction *next)
duprow_action::action::lbound
double lbound
Definition: CoinPresolveDupcol.hpp:90
dupcol_action::action::thislo
double thislo
Definition: CoinPresolveDupcol.hpp:38
twoxtwo_action::action::cost_col
double cost_col
Definition: CoinPresolveDupcol.hpp:201
twoxtwo_action::action::ubound_row
double ubound_row
Definition: CoinPresolveDupcol.hpp:198
dupcol_action::action::ilast
int ilast
Definition: CoinPresolveDupcol.hpp:43
duprow3_action::actions_
const action *const actions_
Definition: CoinPresolveDupcol.hpp:123
duprow_action::name
const char * name() const
A name for debug printing.
dupcol_action::action::nincol
int nincol
Definition: CoinPresolveDupcol.hpp:46
twoxtwo_action::action::lbound_col
double lbound_col
Definition: CoinPresolveDupcol.hpp:199
twoxtwo_action::action::ubound_col
double ubound_col
Definition: CoinPresolveDupcol.hpp:200
gubrow_action::action::indices
int * indices
Definition: CoinPresolveDupcol.hpp:159
twoxtwo_action
Detect interesting 2 by 2 blocks.
Definition: CoinPresolveDupcol.hpp:195
duprow_action::action::ubound
double ubound
Definition: CoinPresolveDupcol.hpp:91
twoxtwo_action::actions_
const action *const actions_
Definition: CoinPresolveDupcol.hpp:209
duprow_action::duprow_action
duprow_action()
Definition: CoinPresolveDupcol.hpp:97
duprow_action::duprow_action
duprow_action(int nactions, const action *actions, const CoinPresolveAction *next)
Definition: CoinPresolveDupcol.hpp:98
twoxtwo_action::name
const char * name() const
A name for debug printing.
dupcol_action::dupcol_action
dupcol_action(int nactions, const action *actions, const CoinPresolveAction *next)
Definition: CoinPresolveDupcol.hpp:53
gubrow_action::action::rowels
double * rowels
Definition: CoinPresolveDupcol.hpp:158
twoxtwo_action::action
Definition: CoinPresolveDupcol.hpp:196
duprow3_action::name
const char * name() const
A name for debug printing.