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 presol_boundshift.h 26 * @ingroup PRESOLVERS 27 * @brief presolver that converts integer variables with domain [a,b] to integer variables with domain [0,b-a] 28 * @author Tobias Achterberg 29 * @author Michael Winkler 30 * 31 * This presolver converts all integer variables with domain \f$[a,b]\f$ to integer variables with domain 32 * \f$[0,b-a]\f$. This is done by creating a new integer variable \f$y\f$ which will be aggregated to the old variable 33 * \f$x\f$ such that 34 * \f[ 35 * x = y + a 36 * \f] 37 */ 38 39 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 40 41 #ifndef __SCIP_PRESOL_BOUNDSHIFT_H__ 42 #define __SCIP_PRESOL_BOUNDSHIFT_H__ 43 44 #include "scip/def.h" 45 #include "scip/type_retcode.h" 46 #include "scip/type_scip.h" 47 48 #ifdef __cplusplus 49 extern "C" { 50 #endif 51 52 /** creates the boundshift presolver and includes it in SCIP 53 * 54 * @ingroup PresolverIncludes 55 */ 56 SCIP_EXPORT 57 SCIP_RETCODE SCIPincludePresolBoundshift( 58 SCIP* scip /**< SCIP data structure */ 59 ); 60 61 #ifdef __cplusplus 62 } 63 #endif 64 65 #endif 66