Scippy

SCIP

Solving Constraint Integer Programs

heur_trysol.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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23/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24
25/**@file heur_trysol.h
26 * @ingroup PRIMALHEURISTICS
27 * @brief primal heuristic that tries a given solution
28 * @author Marc Pfetsch
29 *
30 * This heuristic takes a solution from somewhere else via the function SCIPheurPassSolTrySol(). It
31 * then tries to commit this solution. It is mainly used by cons_indicator, which tries to correct a
32 * given solution, but cannot directly submit this solution, because it is a constraint handler and
33 * not a heuristic.
34 */
35
36/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
37
38#ifndef __SCIP_HEUR_TRYSOL_H__
39#define __SCIP_HEUR_TRYSOL_H__
40
41#include "scip/def.h"
42#include "scip/type_heur.h"
43#include "scip/type_retcode.h"
44#include "scip/type_scip.h"
45#include "scip/type_sol.h"
46
47#ifdef __cplusplus
48extern "C" {
49#endif
50
51/** creates the trysol primal heuristic and includes it in SCIP
52 *
53 * @ingroup PrimalHeuristicIncludes
54 */
55SCIP_EXPORT
57 SCIP* scip /**< SCIP data structure */
58 );
59
60/**@addtogroup PRIMALHEURISTICS
61 *
62 * @{
63 */
64
65/** pass solution to trysol heuristic */
66SCIP_EXPORT
68 SCIP* scip, /**< SCIP data structure */
69 SCIP_HEUR* heur, /**< trysol heuristic */
70 SCIP_SOL* sol /**< solution to be passed */
71 );
72
73/** pass solution to trysol heuristic which just gets added (without checking feasibility */
74SCIP_EXPORT
76 SCIP* scip, /**< SCIP data structure */
77 SCIP_HEUR* heur, /**< trysol heuristic */
78 SCIP_SOL* sol /**< solution to be passed */
79 );
80
81/** @} */
82
83#ifdef __cplusplus
84}
85#endif
86
87#endif
common defines and data types used in all packages of SCIP
SCIP_RETCODE SCIPheurPassSolTrySol(SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol)
Definition: heur_trysol.c:252
SCIP_RETCODE SCIPheurPassSolAddSol(SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol)
Definition: heur_trysol.c:293
SCIP_RETCODE SCIPincludeHeurTrySol(SCIP *scip)
Definition: heur_trysol.c:222
type definitions for primal heuristics
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
type definitions for storing primal CIP solutions