COIN-OR::LEMON - Graph Library

source: lemon-0.x/src/work/athos/lp/lp_cplex.h @ 1339:26a88d12d1a6

Last change on this file since 1339:26a88d12d1a6 was 1339:26a88d12d1a6, checked in by athos, 15 years ago

A little has been done. Some important questions arised.

File size: 3.3 KB
Line 
1/* -*- C++ -*-
2 * src/lemon/lp_cplex.h - Part of LEMON, a generic C++ optimization library
3 *
4 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
5 * (Egervary Combinatorial Optimization Research Group, EGRES).
6 *
7 * Permission to use, modify and distribute this software is granted
8 * provided that this copyright notice appears in all copies. For
9 * precise terms see the accompanying LICENSE file.
10 *
11 * This software is provided "AS IS" with no warranty of any kind,
12 * express or implied, and with no claim as to its suitability for any
13 * purpose.
14 *
15 */
16
17#ifndef LEMON_LP_CPLEX_H
18#define LEMON_LP_CPLEX_H
19
20///\file
21///\brief Header of the LEMON-CPLEX lp solver interface.
22
23#include <lemon/lp_base.h>
24extern "C" {
25#include <ilcplex/cplex.h>
26}
27
28namespace lemon {
29
30
31  /// \brief Wrapper for GLPK solver
32  ///
33  /// This class implements a lemon wrapper for GLPK.
34  class LpCplex : public LpSolverBase {
35
36  public:
37
38    typedef LpSolverBase Parent;
39   
40    /// \e
41    int status;
42    CPXENVptr env;
43    CPXLPptr lp;
44
45
46    /// \e
47    LpCplex() : Parent() {
48      env = NULL;
49      lp = NULL;
50      env = CPXopenCPLEXdevelop(&status);     
51//     if (Env == NULL)
52//     {
53//          fprintf(stderr,"A CPLEX környezet megnyitása sikertelen.\n");
54//       CPXgeterrorstring(Env, Status, ErrorMsg);
55//       fprintf(stderr,"%s",ErrorMsg);
56//       goto Terminate;
57//     }
58
59    // *** A problema létrehozása ***
60    lp = CPXcreateprob(env, &status, "LP problem");
61 
62//    if (Problem == NULL)
63//     {
64//      fprintf(stderr,"Az LP létrehozása sikertelen");
65//      goto Terminate;
66//     }
67 
68    }
69    /// \e
70    ~LpCplex() {
71      status = CPXfreeprob(env,&lp);
72//       if (Status != 0)
73//      {
74//        fprintf(stderr,"A CPLEX feladat törlése sikertelen.\n");
75//        CPXgeterrorstring(Env, Status, ErrorMsg);
76//        fprintf(stderr,"%s",ErrorMsg);
77//        goto Terminate;
78//      }
79       
80      status = CPXcloseCPLEX(&env);
81//       if (Status != 0)
82//      {
83//        fprintf(stderr,"A CPLEX környezet bezárása sikertelen.\n");
84//        CPXgeterrorstring(Env, Status, ErrorMsg);
85//        fprintf(stderr,"%s",ErrorMsg);
86//        goto Terminate;
87//      }
88     
89    }
90
91  protected:
92    virtual int _addCol();
93    virtual int _addRow();
94    virtual void _setRowCoeffs(int i,
95                               int length,
96                               const int   * indices,
97                               const Value   * values );
98    virtual void _setColCoeffs(int i,
99                               int length,
100                               const int   * indices,
101                               const Value   * values);
102    virtual void _setColLowerBound(int i, Value value);
103    virtual void _setColUpperBound(int i, Value value);
104    virtual void _setRowLowerBound(int i, Value value);
105    virtual void _setRowUpperBound(int i, Value value);
106    virtual void _setObjCoeff(int i, Value obj_coef);
107    ///\e
108   
109    ///\bug Unimplemented
110    ///
111    virtual SolveExitStatus _solve();
112    ///\e
113
114    ///\bug Unimplemented
115    ///
116    virtual Value _getPrimal(int i);
117    ///\e
118   
119    ///\bug Unimplemented
120    ///
121    virtual Value _getPrimalValue();
122    ///\e
123   
124    ///\bug Unimplemented
125    ///
126    virtual SolutionStatus _getPrimalStatus();
127
128    ///\e
129   
130    ///\bug Unimplemented
131    ///
132    virtual void _setMax();
133    ///\e
134   
135    ///\bug Unimplemented
136    ///
137    virtual void _setMin();
138
139  };
140} //END OF NAMESPACE LEMON
141
142#endif //LEMON_LP_CPLEX_H
143
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