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 reader_gms.h 26 * @ingroup FILEREADERS 27 * @brief GAMS file reader and writer 28 * @author Ambros Gleixner 29 * 30 * This reader writes a CIP in GAMS format. 31 * It can write all kinds of linear and nonlinear constraints (as occurring in MINLPs) and indicator constraints. 32 * 33 * If SCIP has been compiled with GAMS=true, it can also read GAMS model instances. 34 * This requires a working GAMS system. 35 */ 36 37 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 38 39 #ifndef __SCIP_READER_GMS_H__ 40 #define __SCIP_READER_GMS_H__ 41 42 #include "scip/def.h" 43 #include "scip/type_cons.h" 44 #include "scip/type_prob.h" 45 #include "scip/type_result.h" 46 #include "scip/type_retcode.h" 47 #include "scip/type_scip.h" 48 #include "scip/type_var.h" 49 50 #ifdef __cplusplus 51 extern "C" { 52 #endif 53 54 /** includes the gms file reader into SCIP 55 * 56 * @ingroup FileReaderIncludes 57 */ 58 SCIP_EXPORT 59 SCIP_RETCODE SCIPincludeReaderGms( 60 SCIP* scip /**< SCIP data structure */ 61 ); 62 63 /**@addtogroup FILEREADERS 64 * 65 * @{ 66 */ 67 68 /** writes problem to file */ 69 SCIP_EXPORT 70 SCIP_RETCODE SCIPwriteGms( 71 SCIP* scip, /**< SCIP data structure */ 72 FILE* file, /**< output file, or NULL if standard output should be used */ 73 const char* name, /**< problem name */ 74 SCIP_Bool transformed, /**< TRUE iff problem is the transformed problem */ 75 SCIP_OBJSENSE objsense, /**< objective sense */ 76 SCIP_Real objscale, /**< scalar applied to objective function; external objective value is 77 * extobj = objsense * objscale * (intobj + objoffset) */ 78 SCIP_Real objoffset, /**< objective offset from bound shifting and fixing */ 79 SCIP_VAR** vars, /**< array with active variables ordered binary, integer, implicit, continuous */ 80 int nvars, /**< number of active variables in the problem */ 81 int nbinvars, /**< number of binary variables */ 82 int nintvars, /**< number of general integer variables */ 83 int nimplvars, /**< number of implicit integer variables */ 84 int ncontvars, /**< number of continuous variables */ 85 SCIP_CONS** conss, /**< array with constraints of the problem */ 86 int nconss, /**< number of constraints in the problem */ 87 SCIP_RESULT* result /**< pointer to store the result of the file writing call */ 88 ); 89 90 /** @} */ 91 92 #ifdef __cplusplus 93 } 94 #endif 95 96 #endif 97