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4    	/*         SCIP --- Solving Constraint Integer Programs                      */
5    	/*                                                                           */
6    	/*  Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB)                      */
7    	/*                                                                           */
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19   	/*                                                                           */
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22   	/*                                                                           */
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24   	
25   	/**@file   heur_indicator.h
26   	 * @ingroup PRIMALHEURISTICS
27   	 * @brief  handle partial solutions for linear problems with indicators and otherwise continuous variables
28   	 * @author Marc Pfetsch
29   	 *
30   	 * For linear problems with indicators and otherwise continuous variables, the indicator constraint handler can produce
31   	 * partial solutions, i.e., values for the indicator variables. This partial solution can be passed to this heuristic,
32   	 * which then fixes these values and solves an LP. Additionally a local search for a better solution is added.
33   	 */
34   	
35   	/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
36   	
37   	#ifndef __SCIP_HEUR_INDICATOR_H__
38   	#define __SCIP_HEUR_INDICATOR_H__
39   	
40   	#include "scip/def.h"
41   	#include "scip/type_cons.h"
42   	#include "scip/type_heur.h"
43   	#include "scip/type_retcode.h"
44   	#include "scip/type_scip.h"
45   	
46   	#ifdef __cplusplus
47   	extern "C" {
48   	#endif
49   	
50   	/** creates the indicator primal heuristic and includes it in SCIP
51   	 *
52   	 *  @ingroup PrimalHeuristicIncludes
53   	 */
54   	SCIP_EXPORT
55   	SCIP_RETCODE SCIPincludeHeurIndicator(
56   	   SCIP*                 scip                /**< SCIP data structure */
57   	   );
58   	
59   	/**@addtogroup PRIMALHEURISTICS
60   	 *
61   	 * @{
62   	 */
63   	
64   	/** pass partial solution for indicator variables to heuristic */
65   	SCIP_EXPORT
66   	SCIP_RETCODE SCIPheurPassIndicator(
67   	   SCIP*                 scip,               /**< SCIP data structure */
68   	   SCIP_HEUR*            heur,               /**< indicator heuristic */
69   	   int                   nindconss,          /**< number of indicator constraints */
70   	   SCIP_CONS**           indconss,           /**< indicator constraints */
71   	   SCIP_Bool*            solcand,            /**< values for indicator variables in partial solution */
72   	   SCIP_Real             obj                 /**< objective of solution */
73   	   );
74   	
75   	/** @} */
76   	
77   	#ifdef __cplusplus
78   	}
79   	#endif
80   	
81   	#endif
82