1    	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2    	/*                                                                           */
3    	/*                  This file is part of the program and library             */
4    	/*         SCIP --- Solving Constraint Integer Programs                      */
5    	/*                                                                           */
6    	/*  Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB)                      */
7    	/*                                                                           */
8    	/*  Licensed under the Apache License, Version 2.0 (the "License");          */
9    	/*  you may not use this file except in compliance with the License.         */
10   	/*  You may obtain a copy of the License at                                  */
11   	/*                                                                           */
12   	/*      http://www.apache.org/licenses/LICENSE-2.0                           */
13   	/*                                                                           */
14   	/*  Unless required by applicable law or agreed to in writing, software      */
15   	/*  distributed under the License is distributed on an "AS IS" BASIS,        */
16   	/*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
17   	/*  See the License for the specific language governing permissions and      */
18   	/*  limitations under the License.                                           */
19   	/*                                                                           */
20   	/*  You should have received a copy of the Apache-2.0 license                */
21   	/*  along with SCIP; see the file LICENSE. If not visit scipopt.org.         */
22   	/*                                                                           */
23   	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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 */
35   	SCIP_Bool SYMcanComputeSymmetry(void)
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}*/
65   	SCIP_RETCODE SYMcomputeSymmetryGenerators(
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 */
95   	SCIP_Bool SYMcheckGraphsAreIdentical(
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  	}
104