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