Scippy

SCIP

Solving Constraint Integer Programs

heur_dins.h
Go to the documentation of this file.
1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright 2002-2022 Zuse Institute Berlin */
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 heur_dins.h
26  * @ingroup PRIMALHEURISTICS
27  * @brief DINS primal heuristic
28  * @author Robert Waniek
29  *
30  * DINS combines the ideas of RINS (see @ref heur_rins.h) and Local Branching (see @ref heur_localbranching.h). It
31  * defines the neighborhood by introducing a distance function between the incumbent solution and the optimum of the LP
32  * relaxation. When applied during a branch-and-bound search, it further takes into account how variables change their
33  * values at different nodes of the tree.
34  */
35 
36 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
37 
38 #ifndef __SCIP_HEUR_DINS_H__
39 #define __SCIP_HEUR_DINS_H__
40 
41 #include "scip/def.h"
42 #include "scip/type_retcode.h"
43 #include "scip/type_scip.h"
44 
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48 
49 /** creates the DINS primal heuristic and includes it in SCIP
50  *
51  * @ingroup PrimalHeuristicIncludes
52  */
53 SCIP_EXPORT
55  SCIP* scip /**< SCIP data structure */
56  );
57 
58 #ifdef __cplusplus
59 }
60 #endif
61 
62 #endif
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
type definitions for return codes for SCIP methods
type definitions for SCIP&#39;s main datastructure
SCIP_RETCODE SCIPincludeHeurDins(SCIP *scip)
Definition: heur_dins.c:918
common defines and data types used in all packages of SCIP