vardata_binpacking.h

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/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
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/*    Copyright (C) 2002-2022 Konrad-Zuse-Zentrum                            */
/*                            fuer Informationstechnik Berlin                */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/**@file   vardata_binpacking.h
 * @brief  Variable data containing the ids of constraints in which the variable appears
 * @author Timo Berthold
 * @author Stefan Heinz
 *
 * This file implements the handling of the variable data which is attached to each file. See SCIP_VarData and \ref BINPACKING_PRICER.
 */

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#ifndef __SCIP_VARDATA_BINPACKING__
#define __SCIP_VARDATA_BINPACKING__

#include "scip/scip.h"

/** create variable data */
SCIP_RETCODE SCIPvardataCreateBinpacking(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_VARDATA**        vardata,            /**< pointer to vardata */
   int*                  consids,            /**< array of constraints ids */
   int                   nconss              /**< number of constraints */
   );

/** get number of constraints */
int SCIPvardataGetNConsids(
   SCIP_VARDATA*         vardata             /**< variable data */
   );

/** returns sorted constraint id array */
int* SCIPvardataGetConsids(
   SCIP_VARDATA*         vardata             /**< variable data */
   );

/** creates variable */
SCIP_RETCODE SCIPcreateVarBinpacking(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_VAR**            var,                /**< pointer to variable object */
   const char*           name,               /**< name of variable, or NULL for automatic name creation */
   SCIP_Real             obj,                /**< objective function value */
   SCIP_Bool             initial,            /**< should var's column be present in the initial root LP? */
   SCIP_Bool             removable,          /**< is var's column removable from the LP (due to aging or cleanup)? */
   SCIP_VARDATA*         vardata             /**< user data for this specific variable */
   );

/** prints vardata to file stream */
void SCIPvardataPrint(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_VARDATA*         vardata,            /**< variable data */
   FILE*                 file                /**< the text file to store the information into */
   );

#endif