heur_shiftandpropagate.h

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/**@file   heur_shiftandpropagate.h
 * @ingroup PRIMALHEURISTICS
 * @brief  preroot heuristic that alternatingly fixes variables and propagates domains
 * @author Timo Berthold
 * @author Gregor Hendel
 *
 * Preroot primal heuristic that fixes variables and propagates these fixings. In each step, the heuristic fixes a
 * variable such that the number of violated LP rows gets maximally reduced.  The fixing is then propagated to reduce
 * further variable domains.  In case that the domain propagation detects the infeasibility of the current partial
 * solution, the domain is reset to its previous state and the variable is postponed.
 */
 
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
 
#ifndef __SCIP_HEUR_SHIFTANDPROPAGATE_H__
#define __SCIP_HEUR_SHIFTANDPROPAGATE_H__
 
#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/** creates the shiftandpropagate primal heuristic and includes it in SCIP
 *
 *  @ingroup PrimalHeuristicIncludes
 */
SCIP_EXPORT
SCIP_RETCODE SCIPincludeHeurShiftandpropagate(
   SCIP*                 scip                /**< SCIP data structure */
   );
 
#ifdef __cplusplus
}
#endif
 
#endif