1    	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2    	/*                                                                           */
3    	/*                  This file is part of the program and library             */
4    	/*         SCIP --- Solving Constraint Integer Programs                      */
5    	/*                                                                           */
6    	/*  Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB)                      */
7    	/*                                                                           */
8    	/*  Licensed under the Apache License, Version 2.0 (the "License");          */
9    	/*  you may not use this file except in compliance with the License.         */
10   	/*  You may obtain a copy of the License at                                  */
11   	/*                                                                           */
12   	/*      http://www.apache.org/licenses/LICENSE-2.0                           */
13   	/*                                                                           */
14   	/*  Unless required by applicable law or agreed to in writing, software      */
15   	/*  distributed under the License is distributed on an "AS IS" BASIS,        */
16   	/*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
17   	/*  See the License for the specific language governing permissions and      */
18   	/*  limitations under the License.                                           */
19   	/*                                                                           */
20   	/*  You should have received a copy of the Apache-2.0 license                */
21   	/*  along with SCIP; see the file LICENSE. If not visit scipopt.org.         */
22   	/*                                                                           */
23   	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24   	
25   	/**@file   type_sol.h
26   	 * @brief  type definitions for storing primal CIP solutions
27   	 * @author Tobias Achterberg
28   	 */
29   	
30   	/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
31   	
32   	#ifndef __SCIP_TYPE_SOL_H__
33   	#define __SCIP_TYPE_SOL_H__
34   	
35   	#ifdef __cplusplus
36   	extern "C" {
37   	#endif
38   	
39   	/** origin of solution: where to retrieve uncached elements */
40   	enum SCIP_SolOrigin
41   	{
42   	   SCIP_SOLORIGIN_ORIGINAL  = 0,        /**< solution describes original variables; non-cached elements are zero */
43   	   SCIP_SOLORIGIN_ZERO      = 1,        /**< all non-cached elements in solution are equal to zero */
44   	   SCIP_SOLORIGIN_LPSOL     = 2,        /**< all non-cached elements in solution are equal to current LP solution */
45   	   SCIP_SOLORIGIN_NLPSOL    = 3,        /**< all non-cached elements in solution are equal to current NLP solution */
46   	   SCIP_SOLORIGIN_RELAXSOL  = 4,        /**< all non-cached elements in solution are equal to current relaxation solution */
47   	   SCIP_SOLORIGIN_PSEUDOSOL = 5,        /**< all non-cached elements in solution are equal to current pseudo solution */
48   	   SCIP_SOLORIGIN_PARTIAL   = 6,        /**< solution describes original solution; all non-cached elements in solution
49   	                                         *   are treated as being an arbitrary value in the variable's bounds
50   	                                         */
51   	   SCIP_SOLORIGIN_UNKNOWN   = 7         /**< all non-cached elements in solution are unknown; they have to be treated
52   	                                         *   as being an arbitrary value in the variable's bounds
53   	                                         */
54   	};
55   	typedef enum SCIP_SolOrigin SCIP_SOLORIGIN;
56   	
57   	typedef struct SCIP_Sol SCIP_SOL;                 /**< primal CIP solution */
58   	
59   	typedef struct SCIP_Viol SCIP_VIOL;               /**< maximum violations of problem constraints */
60   	
61   	/** type of solution: heuristic or (LP) relaxation solution, or unspecified origin */
62   	enum SCIP_SolType
63   	{
64   	   SCIP_SOLTYPE_UNKNOWN   = 0,          /**< type of solution unspecified (the default) */
65   	   SCIP_SOLTYPE_HEUR      = 1,          /**< solution was found by a heuristic */
66   	   SCIP_SOLTYPE_RELAX     = 2,          /**< solution was found by a relaxation */
67   	   SCIP_SOLTYPE_LPRELAX   = 3,          /**< solution was found by the LP relaxation */
68   	   SCIP_SOLTYPE_STRONGBRANCH = 4,       /**< solution was found during strong branching */
69   	   SCIP_SOLTYPE_PSEUDO    = 5           /**< solution originates from a pseudo solution */
70   	};
71   	typedef enum SCIP_SolType SCIP_SOLTYPE;
72   	
73   	#ifdef __cplusplus
74   	}
75   	#endif
76   	
77   	#endif
78