Scippy

SCIP

Solving Constraint Integer Programs

prop_dualfix.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) 2002-2024 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, */
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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 prop_dualfix.h
26 * @ingroup PROPAGATORS
27 * @brief fixing roundable variables to best bound
28 * @author Tobias Achterberg
29 *
30 * This propagator fixes variables, that have no restrictions in direction of their objective coefficient, to the best
31 * possible value. If the objective coefficient of a variable is \f$0\f$ and it may be rounded both up and down, then
32 * this variable will be fixed to the closest feasible value to \f$0\f$.
33 */
34
35/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
36
37#ifndef __SCIP_PROP_DUALFIX_H__
38#define __SCIP_PROP_DUALFIX_H__
39
40#include "scip/def.h"
41#include "scip/type_retcode.h"
42#include "scip/type_scip.h"
43
44#ifdef __cplusplus
45extern "C" {
46#endif
47
48/** creates the dual fixing propagator and includes it in SCIP
49 *
50 * @ingroup PropagatorIncludes
51 */
52SCIP_EXPORT
54 SCIP* scip /**< SCIP data structure */
55 );
56
57#ifdef __cplusplus
58}
59#endif
60
61#endif
common defines and data types used in all packages of SCIP
SCIP_RETCODE SCIPincludePropDualfix(SCIP *scip)
Definition: prop_dualfix.c:325
type definitions for return codes for SCIP methods
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
type definitions for SCIP's main datastructure