lemon/lp_cplex.h
author deba
Thu, 15 Feb 2007 13:06:23 +0000
changeset 2362 eb37b9774ef6
parent 2312 07e46cbb7d85
child 2364 3a5e67bd42d2
permissions -rw-r--r--
Small changes
     1 /* -*- C++ -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library
     4  *
     5  * Copyright (C) 2003-2006
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 #ifndef LEMON_LP_CPLEX_H
    20 #define LEMON_LP_CPLEX_H
    21 
    22 ///\file
    23 ///\brief Header of the LEMON-CPLEX lp solver interface.
    24 
    25 #include <lemon/lp_base.h>
    26 
    27 extern "C" {
    28 #include <ilcplex/cplex.h>
    29 }
    30 
    31 namespace lemon {
    32 
    33 
    34   /// \brief Interface for the CPLEX solver
    35   /// 
    36   /// This class implements an interface for the CPLEX LP solver.
    37   class LpCplex :virtual public LpSolverBase {
    38 
    39   public:
    40 
    41     typedef LpSolverBase Parent;
    42     
    43     /// \e
    44     int status;
    45     CPXENVptr env;
    46     CPXLPptr lp;
    47 
    48 
    49     /// \e
    50     LpCplex();
    51     /// \e
    52     ~LpCplex();
    53 
    54   protected:
    55     virtual LpSolverBase &_newLp();
    56     virtual LpSolverBase &_copyLp();
    57 
    58 
    59     virtual int _addCol();
    60     virtual int _addRow();
    61     virtual void _eraseCol(int i);
    62     virtual void _eraseRow(int i);
    63     virtual void _getColName(int col,       std::string & name);
    64     virtual void _setColName(int col, const std::string & name);
    65     virtual void _setRowCoeffs(int i, LpRowIterator b, LpRowIterator e);
    66     virtual void _setColCoeffs(int i, LpColIterator b, LpColIterator e);
    67     virtual void _setCoeff(int row, int col, Value value);
    68     virtual Value _getCoeff(int row, int col);
    69 
    70     virtual void _setColLowerBound(int i, Value value);
    71     virtual Value _getColLowerBound(int i);
    72     virtual void _setColUpperBound(int i, Value value);
    73     virtual Value _getColUpperBound(int i);
    74 
    75 //     virtual void _setRowLowerBound(int i, Value value);
    76 //     virtual void _setRowUpperBound(int i, Value value);
    77     virtual void _setRowBounds(int i, Value lower, Value upper);
    78     virtual void _getRowBounds(int i, Value &lb, Value &ub);
    79     virtual void _setObjCoeff(int i, Value obj_coef);
    80     virtual Value _getObjCoeff(int i);
    81     virtual void _clearObj();
    82 
    83     
    84     virtual SolveExitStatus _solve();
    85     virtual Value _getPrimal(int i);
    86     virtual Value _getDual(int i);
    87     virtual Value _getPrimalValue();
    88     virtual bool _isBasicCol(int i);
    89     
    90     virtual SolutionStatus _getPrimalStatus();
    91     virtual SolutionStatus _getDualStatus();
    92     virtual ProblemTypes _getProblemType();
    93 
    94     
    95     virtual void _setMax();
    96     virtual void _setMin();
    97 
    98     virtual bool _isMax();
    99 
   100   };
   101 } //END OF NAMESPACE LEMON
   102 
   103 #endif //LEMON_LP_CPLEX_H
   104