Scippy

SCIP

Solving Constraint Integer Programs

heur_mutation.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. */
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21/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
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23/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24
25/**@file heur_mutation.h
26 * @ingroup PRIMALHEURISTICS
27 * @brief LNS heuristic that tries to randomly mutate the incumbent solution
28 * @author Timo Berthold
29 *
30 * Mutation is a large neighborhood search improvement heuristic that is inspired by genetic algorithms and requires a
31 * known feasible solution. It randomly fixes variables to their value in the incumbent solution and solves a sub-SCIP,
32 * consisting of the remaining variables. See also @ref heur_crossover.h
33 */
34
35/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
36
37#ifndef __SCIP_HEUR_MUTATION_H__
38#define __SCIP_HEUR_MUTATION_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 mutation primal heuristic and includes it in SCIP
49 *
50 * @ingroup PrimalHeuristicIncludes
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 SCIPincludeHeurMutation(SCIP *scip)
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