Scippy

SCIP

Solving Constraint Integer Programs

presol_boundshift.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) 2002-2023 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. */
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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 presol_boundshift.h
26  * @ingroup PRESOLVERS
27  * @brief presolver that converts integer variables with domain [a,b] to integer variables with domain [0,b-a]
28  * @author Tobias Achterberg
29  * @author Michael Winkler
30  *
31  * This presolver converts all integer variables with domain \f$[a,b]\f$ to integer variables with domain
32  * \f$[0,b-a]\f$. This is done by creating a new integer variable \f$y\f$ which will be aggregated to the old variable
33  * \f$x\f$ such that
34  * \f[
35  * x = y + a
36  * \f]
37  */
38 
39 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
40 
41 #ifndef __SCIP_PRESOL_BOUNDSHIFT_H__
42 #define __SCIP_PRESOL_BOUNDSHIFT_H__
43 
44 #include "scip/def.h"
45 #include "scip/type_retcode.h"
46 #include "scip/type_scip.h"
47 
48 #ifdef __cplusplus
49 extern "C" {
50 #endif
51 
52 /** creates the boundshift presolver and includes it in SCIP
53  *
54  * @ingroup PresolverIncludes
55  */
56 SCIP_EXPORT
58  SCIP* scip /**< SCIP data structure */
59  );
60 
61 #ifdef __cplusplus
62 }
63 #endif
64 
65 #endif
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
SCIP_RETCODE SCIPincludePresolBoundshift(SCIP *scip)
type definitions for return codes for SCIP methods
type definitions for SCIP&#39;s main datastructure
common defines and data types used in all packages of SCIP