heur_indicator.h

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/**@file   heur_indicator.h
 * @ingroup PRIMALHEURISTICS
 * @brief  handle partial solutions for linear problems with indicators and otherwise continuous variables
 * @author Marc Pfetsch
 *
 * For linear problems with indicators and otherwise continuous variables, the indicator constraint handler can produce
 * partial solutions, i.e., values for the indicator variables. This partial solution can be passed to this heuristic,
 * which then fixes these values and solves an LP. Additionally a local search for a better solution is added.
 */
 
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
 
#ifndef __SCIP_HEUR_INDICATOR_H__
#define __SCIP_HEUR_INDICATOR_H__
 
#include "scip/def.h"
#include "scip/type_cons.h"
#include "scip/type_heur.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/** creates the indicator primal heuristic and includes it in SCIP
 *
 *  @ingroup PrimalHeuristicIncludes
 */
SCIP_EXPORT
SCIP_RETCODE SCIPincludeHeurIndicator(
   SCIP*                 scip                /**< SCIP data structure */
   );
 
/**@addtogroup PRIMALHEURISTICS
 *
 * @{
 */
 
/** pass partial solution for indicator variables to heuristic */
SCIP_EXPORT
SCIP_RETCODE SCIPheurPassIndicator(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_HEUR*            heur,               /**< indicator heuristic */
   int                   nindconss,          /**< number of indicator constraints */
   SCIP_CONS**           indconss,           /**< indicator constraints */
   SCIP_Bool*            solcand,            /**< values for indicator variables in partial solution */
   SCIP_Real             obj                 /**< objective of solution */
   );
 
/** @} */
 
#ifdef __cplusplus
}
#endif
 
#endif