Scippy

SCIP

Solving Constraint Integer Programs

heur_conflictdiving.h
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright (C) 2002-2020 Konrad-Zuse-Zentrum */
7 /* fuer Informationstechnik Berlin */
8 /* */
9 /* SCIP is distributed under the terms of the ZIB Academic License. */
10 /* */
11 /* You should have received a copy of the ZIB Academic License */
12 /* along with SCIP; see the file COPYING. If not visit scipopt.org. */
13 /* */
14 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15 
16 /**@file heur_conflictdiving.h
17  * @ingroup PRIMALHEURISTICS
18  * @brief LP diving heuristic that chooses fixings w.r.t. conflict locks
19  * @author Jakob Witzig
20  *
21  * Diving heuristic: Iteratively fixes some fractional variable and resolves the LP-relaxation, thereby simulating a
22  * depth-first-search in the tree. Conflict Diving chooses the variable with the fewest conflict locking number in any
23  * direction and rounds it into this direction.
24  */
25 
26 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
27 
28 #ifndef __SCIP_HEUR_CONFLICTDIVING_H__
29 #define __SCIP_HEUR_CONFLICTDIVING_H__
30 
31 #include "scip/def.h"
32 #include "scip/type_retcode.h"
33 #include "scip/type_scip.h"
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 /** creates the conflictdiving heuristic and includes it in SCIP */
42  SCIP* scip /**< SCIP data structure */
43  );
44 
45 #ifdef __cplusplus
46 }
47 #endif
48 
49 #endif
#define SCIP_EXPORT
Definition: def.h:100
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:54
type definitions for return codes for SCIP methods
SCIP_EXPORT SCIP_RETCODE SCIPincludeHeurConflictdiving(SCIP *scip)
type definitions for SCIP&#39;s main datastructure
common defines and data types used in all packages of SCIP