Scippy

SCIP

Solving Constraint Integer Programs

compute_symmetry_none.cpp
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2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
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24 
25 /**@file compute_symmetry_none.cpp
26  * @brief interface for no symmetry computations
27  * @author Marc Pfetsch
28  */
29 
30 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
31 
32 #include "compute_symmetry.h"
33 
34 /** return whether symmetry can be computed */
36 {
37  return FALSE;
38 }
39 
40 /** return name of external program used to compute generators */
41 const char* SYMsymmetryGetName(void)
42 {
43  return "none";
44 }
45 
46 /** return description of external program used to compute generators */
47 const char* SYMsymmetryGetDesc(void)
48 {
49  return "";
50 }
51 
52 /** return name of additional external program used for computing symmetries */
53 const char* SYMsymmetryGetAddName(void)
54 {
55  return "";
56 }
57 
58 /** return description of additional external program used to compute symmetries */
59 const char* SYMsymmetryGetAddDesc(void)
60 {
61  return "";
62 }
63 
64 /** compute generators of symmetry group */ /*lint -e{715}*/
66  SCIP* scip, /**< SCIP pointer */
67  int maxgenerators, /**< maximal number of generators constructed (= 0 if unlimited) */
68  SYM_GRAPH* graph, /**< symmetry detection graph */
69  int* nperms, /**< pointer to store number of permutations */
70  int* nmaxperms, /**< pointer to store maximal number of permutations (needed for freeing storage) */
71  int*** perms, /**< pointer to store permutation generators as (nperms x npermvars) matrix */
72  SCIP_Real* log10groupsize, /**< pointer to store size of group */
73  SCIP_Real* symcodetime /**< pointer to store the time for symmetry code */
74  )
75 { /*lint --e{715}*/
76  assert( scip != NULL );
77  assert( graph != NULL );
78  assert( nperms != NULL );
79  assert( nmaxperms != NULL );
80  assert( perms != NULL );
81  assert( log10groupsize != NULL );
82  assert( symcodetime != NULL );
83 
84  /* init */
85  *nperms = 0;
86  *nmaxperms = 0;
87  *perms = NULL;
88  *log10groupsize = 0;
89  *symcodetime = 0.0;
90 
91  return SCIP_OKAY;
92 }
93 
94 /** returns whether two given graphs are identical */
96  SCIP* scip, /**< SCIP pointer */
97  SYM_SYMTYPE symtype, /**< type of symmetries to be checked */
98  SYM_GRAPH* G1, /**< first graph */
99  SYM_GRAPH* G2 /**< second graph */
100  )
101 {
102  return FALSE;
103 }
#define NULL
Definition: def.h:267
const char * SYMsymmetryGetDesc(void)
SCIP_RETCODE SYMcomputeSymmetryGenerators(SCIP *scip, int maxgenerators, SYM_GRAPH *graph, int *nperms, int *nmaxperms, int ***perms, SCIP_Real *log10groupsize, SCIP_Real *symcodetime)
#define FALSE
Definition: def.h:94
const char * SYMsymmetryGetAddDesc(void)
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
SCIP_Bool SYMcanComputeSymmetry(void)
interface for symmetry computations
SCIP_Bool SYMcheckGraphsAreIdentical(SCIP *scip, SYM_SYMTYPE symtype, SYM_GRAPH *G1, SYM_GRAPH *G2)
#define SCIP_Bool
Definition: def.h:91
enum SYM_Symtype SYM_SYMTYPE
Definition: type_symmetry.h:64
#define SCIP_Real
Definition: def.h:173
SYM_SYMTYPE symtype
const char * SYMsymmetryGetName(void)
const char * SYMsymmetryGetAddName(void)