compute_symmetry.h

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/*         SCIP --- Solving Constraint Integer Programs                      */
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/**@file   compute_symmetry.h
 * @brief  interface for symmetry computations
 * @author Marc Pfetsch
 */

/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/

#ifndef __SCIP_COMPUTE_SYMMETRY_H_
#define __SCIP_COMPUTE_SYMMETRY_H_

#include "scip/scip.h"

#ifdef __cplusplus
extern "C" {
#endif

#include "symmetry/struct_symmetry.h"

/** return whether symmetry can be computed */
SCIP_EXPORT
SCIP_Bool SYMcanComputeSymmetry(void);

/** return name of external program used to compute generators */
SCIP_EXPORT
const char* SYMsymmetryGetName(void);

/** return description of external program used to compute generators */
SCIP_EXPORT
const char* SYMsymmetryGetDesc(void);

/** compute generators of symmetry group */
SCIP_EXPORT
SCIP_RETCODE SYMcomputeSymmetryGenerators(
   SCIP*                 scip,               /**< SCIP pointer */
   int                   maxgenerators,      /**< maximal number of generators constructed (= 0 if unlimited) */
   SYM_MATRIXDATA*       matrixdata,         /**< data for MIP matrix */
   SYM_EXPRDATA*         exprdata,           /**< data for nonlinear constraints */
   int*                  nperms,             /**< pointer to store number of permutations */
   int*                  nmaxperms,          /**< pointer to store maximal number of permutations (needed for freeing storage) */
   int***                perms,              /**< pointer to store permutation generators as (nperms x npermvars) matrix */
   SCIP_Real*            log10groupsize      /**< pointer to store log10 of size of group */
   );

#ifdef __cplusplus
}
#endif

#endif