Scippy

SCIP

Solving Constraint Integer Programs

sepa_rlt.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. */
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 sepa_rlt.h
26  * @ingroup SEPARATORS
27  * @brief reformulation-linearization technique separator
28  * @author Fabian Wegscheider
29  * @author Ksenia Bestuzheva
30  *
31  *
32  * This separator generates a collection of cuts constructed by the reformulation-linearization technique (RLT).
33  * For an LP row L and a variable x in [lb,ub], L is multiplied either with (ub-x) or with (x-lb). All known terms that
34  * appear in the product are replaced by their respective auxiliary variable and all unknown terms are replaced by a
35  * suitable linear relaxation, e.g., McCormick. In general, the separator computes four different cuts for a row with
36  * finite sides and a variable with finite bounds.
37  */
38 
39 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
40 
41 #ifndef __SCIP_SEPA_RLT_H__
42 #define __SCIP_SEPA_RLT_H__
43 
44 
45 #include "scip/scip.h"
46 
47 #ifdef __cplusplus
48 extern "C" {
49 #endif
50 
51 /** creates the RLT separator and includes it in SCIP
52  *
53  * @ingroup SeparatorIncludes
54  */
55 SCIP_EXPORT
57  SCIP* scip /**< SCIP data structure */
58 );
59 
60 /**@addtogroup SEPARATORS
61  *
62  * @{
63  */
64 
65 /** @} */
66 
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
SCIP_RETCODE SCIPincludeSepaRlt(SCIP *scip)
Definition: sepa_rlt.c:3300
SCIP callable library.