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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* */
/* This file is part of the program and library */
/* SCIP --- Solving Constraint Integer Programs */
/* */
/* Copyright 2002-2022 Zuse Institute Berlin */
/* */
/* 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 sepa_closecuts.h
* @ingroup SEPARATORS
* @brief closecuts meta separator
* @author Marc Pfetsch
*
* This separator generates a convex combination of the current LP solution and either the best
* primal feasible solution or an interior point of the LP relaxation. If the convex combination is
* proper, the new point is closer to the convex hull of the feasible points. The separator then
* calls all other separators to separate this point. The idea is that in this way possibly "deeper"
* cuts are generated. Note, however, that the new point is not a basic solution, i.e., separators
* relying basis information, e.g., Gomory cuts, will not work.
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_SEPA_CLOSECUTS_H__
#define __SCIP_SEPA_CLOSECUTS_H__
#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
#include "scip/type_sol.h"
#ifdef __cplusplus
extern "C" {
#endif
/** creates the closecuts separator and includes it in SCIP
*
* @ingroup SeparatorIncludes
*/
SCIP_EXPORT
SCIP_RETCODE SCIPincludeSepaClosecuts(
SCIP* scip /**< SCIP data structure */
);
/**@addtogroup SEPARATORS
*
* @{
*/
/** sets point to be used as base point for computing the point to be separated
*
* The point is only stored if separation of relative interior points is used. The solution is copied.
*/
SCIP_EXPORT
SCIP_RETCODE SCIPsetBasePointClosecuts(
SCIP* scip, /**< SCIP data structure */
SCIP_SOL* sol /**< base point solution */
);
/** @} */
#ifdef __cplusplus
}
#endif
#endif