Scippy

GCG

Branch-and-Price & Column Generation for Everyone

type_pricestore_gcg.h
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program */
4 /* GCG --- Generic Column Generation */
5 /* a Dantzig-Wolfe decomposition based extension */
6 /* of the branch-cut-and-price framework */
7 /* SCIP --- Solving Constraint Integer Programs */
8 /* */
9 /* Copyright (C) 2010-2021 Operations Research, RWTH Aachen University */
10 /* Zuse Institute Berlin (ZIB) */
11 /* */
12 /* This program is free software; you can redistribute it and/or */
13 /* modify it under the terms of the GNU Lesser General Public License */
14 /* as published by the Free Software Foundation; either version 3 */
15 /* of the License, or (at your option) any later version. */
16 /* */
17 /* This program is distributed in the hope that it will be useful, */
18 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
19 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
20 /* GNU Lesser General Public License for more details. */
21 /* */
22 /* You should have received a copy of the GNU Lesser General Public License */
23 /* along with this program; if not, write to the Free Software */
24 /* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.*/
25 /* */
26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
27 
28 /**@file type_pricestore_gcg.h
29  * @ingroup TYPEDEFINITIONS
30  * @brief type definitions for storing priced cols
31  * @author Jonas Witt
32  */
33 
34 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
35 
36 #ifndef __GCG_TYPE_PRICESTORE_H__
37 #define __GCG_TYPE_PRICESTORE_H__
38 
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
43 /** possible settings for specifying the solution for which cuts are selected */
45 {
46  GCG_EFFICIACYCHOICE_DANTZIG = 0, /**< use Dantzig's rule (reduced cost) to base efficacy on */
47  GCG_EFFICIACYCHOICE_STEEPESTEDGE = 1, /**< use steepest edge rule s( to base efficacy on */
48  GCG_EFFICIACYCHOICE_LAMBDA = 2 /**< use lambda pricing to base efficacy on */
49 };
51 
52 typedef struct GCG_PriceStore GCG_PRICESTORE; /**< storage for priced variables */
53 
54 #ifdef __cplusplus
55 }
56 #endif
57 
58 #endif
enum GCG_Efficiacychoice GCG_EFFICIACYCHOICE
@ GCG_EFFICIACYCHOICE_STEEPESTEDGE
GCG_Efficiacychoice
@ GCG_EFFICIACYCHOICE_DANTZIG
@ GCG_EFFICIACYCHOICE_LAMBDA