presol_trivial.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) 2002-2019 Konrad-Zuse-Zentrum                            */
/*                            fuer Informationstechnik Berlin                */
/*                                                                           */
/*  SCIP is distributed under the terms of the ZIB Academic License.         */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/**@file   presol_trivial.h
 * @ingroup PRESOLVERS
 * @brief  trivial presolver: round fractional bounds on integer variables, fix variables with equal bounds
 * @author Tobias Achterberg
 *
 * This presolver fixes variables with equal bounds to this value. Furthermore, all integral variables, for which the
 * bounds are fractional, will get rounded new bounds.
 */

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

#ifndef __SCIP_PRESOL_TRIVIAL_H__
#define __SCIP_PRESOL_TRIVIAL_H__

#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"

#ifdef __cplusplus
extern "C" {
#endif

/** creates the trivial presolver and includes it in SCIP
 *
 * @ingroup PresolverIncludes
 */
extern
SCIP_RETCODE SCIPincludePresolTrivial(
   SCIP*                 scip                /**< SCIP data structure */
   );

#ifdef __cplusplus
}
#endif

#endif