Scippy

SCIP

Solving Constraint Integer Programs

presol_trivial.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 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 */
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12 /* http://www.apache.org/licenses/LICENSE-2.0 */
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14 /* Unless required by applicable law or agreed to in writing, software */
15 /* distributed under the License is distributed on an "AS IS" BASIS, */
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17 /* See the License for the specific language governing permissions and */
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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_trivial.h
26  * @ingroup PRESOLVERS
27  * @brief trivial presolver: round fractional bounds on integer variables, fix variables with equal bounds
28  * @author Tobias Achterberg
29  *
30  * This presolver fixes variables with equal bounds to this value. Furthermore, all integral variables, for which the
31  * bounds are fractional, will get rounded new bounds.
32  */
33 
34 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
35 
36 #ifndef __SCIP_PRESOL_TRIVIAL_H__
37 #define __SCIP_PRESOL_TRIVIAL_H__
38 
39 #include "scip/def.h"
40 #include "scip/type_retcode.h"
41 #include "scip/type_scip.h"
42 
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46 
47 /** creates the trivial presolver and includes it in SCIP
48  *
49  * @ingroup PresolverIncludes
50  */
51 SCIP_EXPORT
53  SCIP* scip /**< SCIP data structure */
54  );
55 
56 #ifdef __cplusplus
57 }
58 #endif
59 
60 #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 SCIPincludePresolTrivial(SCIP *scip)
common defines and data types used in all packages of SCIP