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 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 48 extern "C" { 49 #endif 50 51 /** creates the trysol primal heuristic and includes it in SCIP 52 * 53 * @ingroup PrimalHeuristicIncludes 54 */ 55 SCIP_EXPORT 56 SCIP_RETCODE SCIPincludeHeurTrySol( 57 SCIP* scip /**< SCIP data structure */ 58 ); 59 60 /**@addtogroup PRIMALHEURISTICS 61 * 62 * @{ 63 */ 64 65 /** pass solution to trysol heuristic */ 66 SCIP_EXPORT 67 SCIP_RETCODE SCIPheurPassSolTrySol( 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 */ 74 SCIP_EXPORT 75 SCIP_RETCODE SCIPheurPassSolAddSol( 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 88