Scippy

SCIP

Solving Constraint Integer Programs

heur_intshifting.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) 2002-2015 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 email to scip@zib.de. */
13 /* */
14 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15 
16 /**@file heur_intshifting.h
17  * @ingroup PRIMALHEURISTICS
18  * @brief LP rounding heuristic that tries to recover from intermediate infeasibilities, shifts integer variables, and
19  * solves a final LP to calculate feasible values for continuous variables
20  * @author Tobias Achterberg
21  *
22  * This heuristic is similar to the Shifting heuristic (see @ref heur_shifting.h), but it ignores continuous variables
23  * during the shifting phase and solves a final LP to find feasible (and optimal w.r.t. the integer fixings) values for
24  * the continuous variables.
25  */
26 
27 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
28 
29 #ifndef __SCIP_HEUR_INTSHIFTING_H__
30 #define __SCIP_HEUR_INTSHIFTING_H__
31 
32 
33 #include "scip/scip.h"
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 /** creates the intshifting heuristic and includes it in SCIP */
40 extern
42  SCIP* scip /**< SCIP data structure */
43  );
44 
45 #ifdef __cplusplus
46 }
47 #endif
48 
49 #endif
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:53
SCIP_RETCODE SCIPincludeHeurIntshifting(SCIP *scip)
struct Scip SCIP
Definition: type_scip.h:30
SCIP callable library.