Scippy

SCIP

Solving Constraint Integer Programs

objsepa.cpp
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright (C) 2002-2019 Konrad-Zuse-Zentrum */
7 /* fuer Informationstechnik Berlin */
8 /* */
9 /* SCIP is distributed under the terms of the ZIB Academic License. */
10 /* */
11 /* You should have received a copy of the ZIB Academic License. */
12 /* along with SCIP; see the file COPYING. If not visit scip.zib.de. */
13 /* */
14 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15 
16 /**@file objsepa.cpp
17  * @brief C++ wrapper for cut separators
18  * @author Tobias Achterberg
19  */
20 
21 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
22 
23 #include <cassert>
24 
25 #include "objsepa.h"
26 
27 
28 
29 
30 /*
31  * Data structures
32  */
33 
34 /** cut separator data */
35 struct SCIP_SepaData
36 {
37  scip::ObjSepa* objsepa; /**< cut separator object */
38  SCIP_Bool deleteobject; /**< should the cut separator object be deleted when cut separator is freed? */
39 };
40 
41 
42 
43 /*
44  * Callback methods of cut separator
45  */
46 
47 extern "C"
48 {
49 
50 /** copy method for separator plugins (called when SCIP copies plugins) */
51 static
52 SCIP_DECL_SEPACOPY(sepaCopyObj)
53 { /*lint --e{715}*/
54  SCIP_SEPADATA* sepadata;
55 
56  assert(scip != NULL);
57 
58  sepadata = SCIPsepaGetData(sepa);
59  assert(sepadata != NULL);
60  assert(sepadata->objsepa != NULL);
61  assert(sepadata->objsepa->scip_ != scip);
62 
63  if( sepadata->objsepa->iscloneable() )
64  {
65  scip::ObjSepa* newobjsepa;
66  newobjsepa = dynamic_cast<scip::ObjSepa*> (sepadata->objsepa->clone(scip));
67 
68  /* call include method of separator object */
69  SCIP_CALL( SCIPincludeObjSepa(scip, newobjsepa, TRUE) );
70  }
71 
72  return SCIP_OKAY;
73 }
74 
75 /** destructor of cut separator to free user data (called when SCIP is exiting) */
76 static
77 SCIP_DECL_SEPAFREE(sepaFreeObj)
78 { /*lint --e{715}*/
79  SCIP_SEPADATA* sepadata;
80 
81  sepadata = SCIPsepaGetData(sepa);
82  assert(sepadata != NULL);
83  assert(sepadata->objsepa != NULL);
84  assert(sepadata->objsepa->scip_ == scip);
85 
86  /* call virtual method of sepa object */
87  SCIP_CALL( sepadata->objsepa->scip_free(scip, sepa) );
88 
89  /* free sepa object */
90  if( sepadata->deleteobject )
91  delete sepadata->objsepa;
92 
93  /* free sepa data */
94  delete sepadata;
95  SCIPsepaSetData(sepa, NULL); /*lint !e64*/
96 
97  return SCIP_OKAY;
98 }
99 
100 
101 /** initialization method of cut separator (called after problem was transformed) */
102 static
103 SCIP_DECL_SEPAINIT(sepaInitObj)
104 { /*lint --e{715}*/
105  SCIP_SEPADATA* sepadata;
106 
107  sepadata = SCIPsepaGetData(sepa);
108  assert(sepadata != NULL);
109  assert(sepadata->objsepa != NULL);
110  assert(sepadata->objsepa->scip_ == scip);
111 
112  /* call virtual method of sepa object */
113  SCIP_CALL( sepadata->objsepa->scip_init(scip, sepa) );
114 
115  return SCIP_OKAY;
116 }
117 
118 
119 /** deinitialization method of cut separator (called before transformed problem is freed) */
120 static
121 SCIP_DECL_SEPAEXIT(sepaExitObj)
122 { /*lint --e{715}*/
123  SCIP_SEPADATA* sepadata;
124 
125  sepadata = SCIPsepaGetData(sepa);
126  assert(sepadata != NULL);
127  assert(sepadata->objsepa != NULL);
128 
129  /* call virtual method of sepa object */
130  SCIP_CALL( sepadata->objsepa->scip_exit(scip, sepa) );
131 
132  return SCIP_OKAY;
133 }
134 
135 
136 /** solving process initialization method of separator (called when branch and bound process is about to begin) */
137 static
138 SCIP_DECL_SEPAINITSOL(sepaInitsolObj)
139 { /*lint --e{715}*/
140  SCIP_SEPADATA* sepadata;
141 
142  sepadata = SCIPsepaGetData(sepa);
143  assert(sepadata != NULL);
144  assert(sepadata->objsepa != NULL);
145 
146  /* call virtual method of sepa object */
147  SCIP_CALL( sepadata->objsepa->scip_initsol(scip, sepa) );
148 
149  return SCIP_OKAY;
150 }
151 
152 
153 /** solving process deinitialization method of separator (called before branch and bound process data is freed) */
154 static
155 SCIP_DECL_SEPAEXITSOL(sepaExitsolObj)
156 { /*lint --e{715}*/
157  SCIP_SEPADATA* sepadata;
158 
159  sepadata = SCIPsepaGetData(sepa);
160  assert(sepadata != NULL);
161  assert(sepadata->objsepa != NULL);
162 
163  /* call virtual method of sepa object */
164  SCIP_CALL( sepadata->objsepa->scip_exitsol(scip, sepa) );
165 
166  return SCIP_OKAY;
167 }
168 
169 
170 /** LP solution separation method of separator */
171 static
172 SCIP_DECL_SEPAEXECLP(sepaExeclpObj)
173 { /*lint --e{715}*/
174  SCIP_SEPADATA* sepadata;
175 
176  sepadata = SCIPsepaGetData(sepa);
177  assert(sepadata != NULL);
178  assert(sepadata->objsepa != NULL);
179 
180  /* call virtual method of sepa object */
181  SCIP_CALL( sepadata->objsepa->scip_execlp(scip, sepa, result, allowlocal) );
182 
183  return SCIP_OKAY;
184 }
185 
186 
187 /** arbitrary primal solution separation method of separator */
188 static
189 SCIP_DECL_SEPAEXECSOL(sepaExecsolObj)
190 { /*lint --e{715}*/
191  SCIP_SEPADATA* sepadata;
192 
193  sepadata = SCIPsepaGetData(sepa);
194  assert(sepadata != NULL);
195  assert(sepadata->objsepa != NULL);
196 
197  /* call virtual method of sepa object */
198  SCIP_CALL( sepadata->objsepa->scip_execsol(scip, sepa, sol, result, allowlocal) );
199 
200  return SCIP_OKAY;
201 }
202 }
203 
204 
205 
206 /*
207  * cut separator specific interface methods
208  */
209 
210 /** creates the cut separator for the given cut separator object and includes it in SCIP */
212  SCIP* scip, /**< SCIP data structure */
213  scip::ObjSepa* objsepa, /**< cut separator object */
214  SCIP_Bool deleteobject /**< should the cut separator object be deleted when cut separator is freed? */
215  )
216 {
217  SCIP_SEPADATA* sepadata;
218 
219  assert(scip != NULL);
220  assert(objsepa != NULL);
221 
222  /* create cut separator data */
223  sepadata = new SCIP_SEPADATA;
224  sepadata->objsepa = objsepa;
225  sepadata->deleteobject = deleteobject;
226 
227  /* include cut separator */
228  SCIP_CALL( SCIPincludeSepa(scip, objsepa->scip_name_, objsepa->scip_desc_, objsepa->scip_priority_,
229  objsepa->scip_freq_, objsepa->scip_maxbounddist_, objsepa->scip_usessubscip_, objsepa->scip_delay_,
230  sepaCopyObj, sepaFreeObj, sepaInitObj, sepaExitObj, sepaInitsolObj, sepaExitsolObj,
231  sepaExeclpObj, sepaExecsolObj,
232  sepadata) ); /*lint !e429*/
233 
234  return SCIP_OKAY; /*lint !e429*/
235 }
236 
237 /** returns the sepa object of the given name, or 0 if not existing */
239  SCIP* scip, /**< SCIP data structure */
240  const char* name /**< name of cut separator */
241  )
242 {
243  SCIP_SEPA* sepa;
244  SCIP_SEPADATA* sepadata;
245 
246  sepa = SCIPfindSepa(scip, name);
247  if( sepa == NULL )
248  return 0;
249 
250  sepadata = SCIPsepaGetData(sepa);
251  assert(sepadata != NULL);
252 
253  return sepadata->objsepa;
254 }
255 
256 /** returns the sepa object for the given cut separator */
258  SCIP* scip, /**< SCIP data structure */
259  SCIP_SEPA* sepa /**< cut separator */
260  )
261 {
262  SCIP_SEPADATA* sepadata;
263 
264  sepadata = SCIPsepaGetData(sepa);
265  assert(sepadata != NULL);
266 
267  return sepadata->objsepa;
268 }
static SCIP_DECL_SEPACOPY(sepaCopyObj)
Definition: objsepa.cpp:52
static SCIP_DECL_SEPAEXIT(sepaExitObj)
Definition: objsepa.cpp:121
#define NULL
Definition: def.h:253
const SCIP_Real scip_maxbounddist_
Definition: objsepa.h:65
char * scip_name_
Definition: objsepa.h:51
#define TRUE
Definition: def.h:72
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:53
static SCIP_DECL_SEPAINIT(sepaInitObj)
Definition: objsepa.cpp:103
static SCIP_DECL_SEPAEXECSOL(sepaExecsolObj)
Definition: objsepa.cpp:189
static SCIP_DECL_SEPAEXECLP(sepaExeclpObj)
Definition: objsepa.cpp:172
static SCIP_DECL_SEPAFREE(sepaFreeObj)
Definition: objsepa.cpp:77
SCIP_SEPA * SCIPfindSepa(SCIP *scip, const char *name)
Definition: scip_sepa.c:237
scip::ObjSepa * SCIPgetObjSepa(SCIP *scip, SCIP_SEPA *sepa)
Definition: objsepa.cpp:257
#define SCIP_CALL(x)
Definition: def.h:365
SCIP_RETCODE SCIPincludeSepa(SCIP *scip, const char *name, const char *desc, int priority, int freq, SCIP_Real maxbounddist, SCIP_Bool usessubscip, SCIP_Bool delay, SCIP_DECL_SEPACOPY((*sepacopy)), SCIP_DECL_SEPAFREE((*sepafree)), SCIP_DECL_SEPAINIT((*sepainit)), SCIP_DECL_SEPAEXIT((*sepaexit)), SCIP_DECL_SEPAINITSOL((*sepainitsol)), SCIP_DECL_SEPAEXITSOL((*sepaexitsol)), SCIP_DECL_SEPAEXECLP((*sepaexeclp)), SCIP_DECL_SEPAEXECSOL((*sepaexecsol)), SCIP_SEPADATA *sepadata)
Definition: scip_sepa.c:52
SCIP_EXPORT SCIP_SEPADATA * SCIPsepaGetData(SCIP_SEPA *sepa)
Definition: sepa.c:607
const SCIP_Bool scip_delay_
Definition: objsepa.h:71
char * scip_desc_
Definition: objsepa.h:54
#define SCIP_Bool
Definition: def.h:70
const SCIP_Bool scip_usessubscip_
Definition: objsepa.h:68
SCIP_RETCODE SCIPincludeObjSepa(SCIP *scip, scip::ObjSepa *objsepa, SCIP_Bool deleteobject)
Definition: objsepa.cpp:211
scip::ObjSepa * SCIPfindObjSepa(SCIP *scip, const char *name)
Definition: objsepa.cpp:238
static SCIP_DECL_SEPAEXITSOL(sepaExitsolObj)
Definition: objsepa.cpp:155
static SCIP_DECL_SEPAINITSOL(sepaInitsolObj)
Definition: objsepa.cpp:138
const int scip_priority_
Definition: objsepa.h:57
const int scip_freq_
Definition: objsepa.h:60
C++ wrapper for cut separators.
Definition: objsepa.h:42
C++ wrapper for cut separators.
SCIP_EXPORT void SCIPsepaSetData(SCIP_SEPA *sepa, SCIP_SEPADATA *sepadata)
Definition: sepa.c:617
struct SCIP_SepaData SCIP_SEPADATA
Definition: type_sepa.h:38