# SCIP

Solving Constraint Integer Programs

type_sol.h
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
7 /* fuer Informationstechnik Berlin */
8 /* */
10 /* */
12 /* along with SCIP; see the file COPYING. If not visit scipopt.org. */
13 /* */
14 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15
16 /**@file type_sol.h
17  * @brief type definitions for storing primal CIP solutions
18  * @author Tobias Achterberg
19  */
20
21 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
22
23 #ifndef __SCIP_TYPE_SOL_H__
24 #define __SCIP_TYPE_SOL_H__
25
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
29
30 /** origin of solution: where to retrieve uncached elements */
32 {
33  SCIP_SOLORIGIN_ORIGINAL = 0, /**< solution describes original variables; non-cached elements are zero */
34  SCIP_SOLORIGIN_ZERO = 1, /**< all non-cached elements in solution are equal to zero */
35  SCIP_SOLORIGIN_LPSOL = 2, /**< all non-cached elements in solution are equal to current LP solution */
36  SCIP_SOLORIGIN_NLPSOL = 3, /**< all non-cached elements in solution are equal to current NLP solution */
37  SCIP_SOLORIGIN_RELAXSOL = 4, /**< all non-cached elements in solution are equal to current relaxation solution */
38  SCIP_SOLORIGIN_PSEUDOSOL = 5, /**< all non-cached elements in solution are equal to current pseudo solution */
39  SCIP_SOLORIGIN_PARTIAL = 6, /**< solution describes original solution; all non-cached elements in solution
40  * are treated as being an arbitrary value in the variable's bounds
41  */
42  SCIP_SOLORIGIN_UNKNOWN = 7 /**< all non-cached elements in solution are unknown; they have to be treated
43  * as being an arbitrary value in the variable's bounds
44  */
45 };
47
48 typedef struct SCIP_Sol SCIP_SOL; /**< primal CIP solution */
49
50 typedef struct SCIP_Viol SCIP_VIOL; /**< maximum violations of problem constraints */
51
52 /** type of solution: heuristic or (LP) relaxation solution, or unspecified origin */
54 {
55  SCIP_SOLTYPE_UNKNOWN = 0, /**< type of solution unspecified (the default) */
56  SCIP_SOLTYPE_HEUR = 1, /**< solution was found by a heuristic */
57  SCIP_SOLTYPE_RELAX = 2, /**< solution was found by a relaxation */
58  SCIP_SOLTYPE_LPRELAX = 3, /**< solution was found by the LP relaxation */
59  SCIP_SOLTYPE_STRONGBRANCH = 4, /**< solution was found during strong branching */
60  SCIP_SOLTYPE_PSEUDO = 5 /**< solution originates from a pseudo solution */
61 };
63
64 #ifdef __cplusplus
65 }
66 #endif
67
68 #endif
SCIP_SolOrigin
Definition: type_sol.h:31
SCIP_SolType
Definition: type_sol.h:53
enum SCIP_SolType SCIP_SOLTYPE
Definition: type_sol.h:62
enum SCIP_SolOrigin SCIP_SOLORIGIN
Definition: type_sol.h:46