boundstore.h

Go to the documentation of this file.

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
/*                                                                           */
/*  Copyright (c) 2002-2025 Zuse Institute Berlin (ZIB)                      */
/*                                                                           */
/*  Licensed under the Apache License, Version 2.0 (the "License");          */
/*  you may not use this file except in compliance with the License.         */
/*  You may obtain a copy of the License at                                  */
/*                                                                           */
/*      http://www.apache.org/licenses/LICENSE-2.0                           */
/*                                                                           */
/*  Unless required by applicable law or agreed to in writing, software      */
/*  distributed under the License is distributed on an "AS IS" BASIS,        */
/*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/*  See the License for the specific language governing permissions and      */
/*  limitations under the License.                                           */
/*                                                                           */
/*  You should have received a copy of the Apache-2.0 license                */
/*  along with SCIP; see the file LICENSE. If not visit scipopt.org.         */
/*                                                                           */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
/**@file   boundstore.h
 * @ingroup PARALLEL
 * @brief  the interface of the boundstore structure
 * @author Leona Gottwald
 */
 
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
 
#include "scip/def.h"
#include "scip/type_syncstore.h"
#include "scip/type_scip.h"
#include "scip/type_lp.h"
#include "scip/type_retcode.h"
 
#ifndef __SCIP_BOUNDSTORE_H__
#define __SCIP_BOUNDSTORE_H__
 
/** create bound store data structure */
SCIP_EXPORT
SCIP_RETCODE SCIPboundstoreCreate(
   SCIP*                 scip,               /**< scip main datastructure */
   SCIP_BOUNDSTORE**     boundstore,         /**< pointer to store the bound store datastructure */
   int                   nvars               /**< number of variables for which bounds may be stored */
   );
 
/** free bound store data structure */
SCIP_EXPORT
void SCIPboundstoreFree(
   SCIP*                 scip,               /**< scip main datastructure */
   SCIP_BOUNDSTORE**     boundstore          /**< pointer to the bound store datastructure */
   );
 
/** add bound change to bound store data structure */
SCIP_EXPORT
SCIP_RETCODE SCIPboundstoreAdd(
   SCIP*                 scip,               /**< scip main datastructure */
   SCIP_BOUNDSTORE*      boundstore,         /**< the bound store datastructure */
   int                   varidx,             /**< variable index of bound change, must be smaller than the
                                              *   number of variables given during creation of bound store */
   SCIP_Real             newbound,           /**< bound value of variable */
   SCIP_BOUNDTYPE        boundtype           /**< type of new bound */
   );
 
/** add all bound changes of source to target */
SCIP_EXPORT
SCIP_RETCODE SCIPboundstoreMerge(
   SCIP*                 scip,               /**< scip main datastructure for target boundstore   */
   SCIP_BOUNDSTORE*      target,             /**< the bound store datastructure where the bounds get merged in */
   SCIP_BOUNDSTORE*      source              /**< the bound store datastructure from which the bounds get merged in */
   );
 
/** remove all boundchanges from bound store */
SCIP_EXPORT
void SCIPboundstoreClear(
   SCIP_BOUNDSTORE*      boundstore          /**< the bound store datastructure */
   );
 
/** gets variable index of the i'th stored boundchange */
SCIP_EXPORT
int SCIPboundstoreGetChgVaridx(
   SCIP_BOUNDSTORE*      boundstore,         /**< the bound store datastructure */
   int                   i                   /**< the index of the bound change */
   );
 
/** gets the type of the i'th stored boundchange */
SCIP_EXPORT
SCIP_BOUNDTYPE SCIPboundstoreGetChgType(
   SCIP_BOUNDSTORE*      boundstore,         /**< the bound store datastructure */
   int                   i                   /**< the index of the bound change */
   );
 
/** gets the bound value of the i'th stored boundchange */
SCIP_EXPORT
SCIP_Real SCIPboundstoreGetChgVal(
   SCIP_BOUNDSTORE*      boundstore,         /**< the bound store datastructure */
   int                   i                   /**< the index of the bound change */
   );
 
/** gets the number of stored bound changes */
SCIP_EXPORT
int SCIPboundstoreGetNChgs(
   SCIP_BOUNDSTORE*      boundstore          /**< the bound store datastructure */
   );
 
#endif