Scippy

SCIP

Solving Constraint Integer Programs

ProbDataTSP.h
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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 2002-2022 Zuse Institute Berlin */
7 /* */
8 /* Licensed under the Apache License, Version 2.0 (the "License"); */
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19 /* */
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21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
22 /* */
23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24 
25 /**@file ProbDataTSP.h
26  * @brief C++ problem data for TSP
27  * @author Timo Berthold
28  */
29 
30 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
31 
32 #ifndef __TSPPROBDATA_H__
33 #define __TSPPROBDATA_H__
34 
35 #include "objscip/objscip.h"
36 #include "GomoryHuTree.h"
37 
38 namespace tsp
39 {
40 
41 /** SCIP user problem data for TSP */
43 {
44  GRAPH* graph_; /**< graph data */
45 
46 public:
47 
48  /** default constructor */
50  GRAPH* g /**< graph data */
51  )
52  : graph_(g)
53  {
54  capture_graph(graph_);
55  }
56 
57  /** destructor */
58  virtual ~ProbDataTSP()
59  {
60  if( graph_ != NULL )
61  release_graph(&graph_); /*lint !e1551*/
62  }
63 
64  /** Copies user data if you want to copy it to a subscip */
65  virtual SCIP_RETCODE scip_copy(
66  SCIP* scip, /**< SCIP data structure */
67  SCIP* sourcescip, /**< source SCIP main data structure */
68  SCIP_HASHMAP* varmap, /**< a hashmap which stores the mapping of source variables to
69  * corresponding target variables */
70  SCIP_HASHMAP* consmap, /**< a hashmap which stores the mapping of source contraints to
71  * corresponding target constraints */
72  ObjProbData** objprobdata, /**< pointer to store the copied problem data object */
73  SCIP_Bool global, /**< create a global or a local copy? */
74  SCIP_RESULT* result /**< pointer to store the result of the call */
75  );
76 
77  /** destructor of user problem data to free original user data (called when original problem is freed) */
78  virtual SCIP_RETCODE scip_delorig(
79  SCIP* scip /**< SCIP data structure */
80  );
81 
82  /** destructor of user problem data to free transformed user data (called when transformed problem is freed) */
84  SCIP* scip /**< SCIP data structure */
85  );
86 
87  /** creates user data of transformed problem by transforming the original user problem data
88  * (called after problem was transformed)
89  */
90  virtual SCIP_RETCODE scip_trans(
91  SCIP* scip, /**< SCIP data structure */
92  ObjProbData** objprobdata, /**< pointer to store the transformed problem data object */
93  SCIP_Bool* deleteobject /**< pointer to store whether SCIP should delete the object after solving */
94  );
95 
96  /* get the graph */
98  {
99  return graph_;
100  }
101 
102 };/*lint !e1712*/
103 
104 } /* namespace tsp */
105 
106 #endif
enum SCIP_Result SCIP_RESULT
Definition: type_result.h:61
virtual SCIP_RETCODE scip_copy(SCIP *scip, SCIP *sourcescip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, ObjProbData **objprobdata, SCIP_Bool global, SCIP_RESULT *result)
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
generator for global cuts in undirected graphs
virtual SCIP_RETCODE scip_delorig(SCIP *scip)
C++ wrapper for user problem data.
Definition: objprobdata.h:52
#define NULL
Definition: lpi_spx1.cpp:164
C++ wrapper classes for SCIP.
GRAPH * getGraph()
Definition: ProbDataTSP.h:97
virtual SCIP_RETCODE scip_trans(SCIP *scip, ObjProbData **objprobdata, SCIP_Bool *deleteobject)
#define SCIP_Bool
Definition: def.h:93
virtual SCIP_RETCODE scip_deltrans(SCIP *scip)
ProbDataTSP(GRAPH *g)
Definition: ProbDataTSP.h:49
virtual ~ProbDataTSP()
Definition: ProbDataTSP.h:58
void capture_graph(GRAPH *gr)
void release_graph(GRAPH **gr)