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 type_history.h 26 * @ingroup TYPEDEFINITIONS 27 * @brief type definitions for branching and inference history 28 * @author Tobias Achterberg 29 */ 30 31 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 32 33 #ifndef __SCIP_TYPE_HISTORY_H__ 34 #define __SCIP_TYPE_HISTORY_H__ 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /** branching direction for branching on variables */ 41 enum SCIP_BranchDir 42 { 43 SCIP_BRANCHDIR_DOWNWARDS = 0, /**< downwards branching: decreasing upper bound */ 44 SCIP_BRANCHDIR_UPWARDS = 1, /**< upwards branching: increasing lower bound */ 45 SCIP_BRANCHDIR_FIXED = 2, /**< fixed branching: both bounds changed */ 46 SCIP_BRANCHDIR_AUTO = 3 /**< automatic setting for choosing bound changes */ 47 }; 48 typedef enum SCIP_BranchDir SCIP_BRANCHDIR; /**< branching direction for branching on variables */ 49 50 typedef struct SCIP_History SCIP_HISTORY; /**< branching and inference history information for single variable */ 51 52 /** Value history data structure 53 * 54 * branching and inference history informations for single variable dependent on the domain value 55 * 56 * - \ref SCIP_VALUEHISTORY "List of all available methods" 57 */ 58 typedef struct SCIP_ValueHistory SCIP_VALUEHISTORY; 59 60 61 #ifdef __cplusplus 62 } 63 #endif 64 65 #endif 66