/* -*- C++ -*-

 * src/lemon/lp_cplex.cc

 * - Part of LEMON, a generic C++ optimization library

 *

 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Combinatorial Optimization Research Group, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#include"lp_cplex.h"

///\file

///\brief Implementation of the LEMON-CPLEX lp solver interface.

namespace lemon {

  int LpCplex::_addCol()

  {

    int i = CPXgetnumcols (env, lp);

    int lb[1],ub[1];

    lb[0]=-INF;//-CPX_INFBOUND;

    ub[0]=INF;//CPX_INFBOUND;

    status = CPXnewcols (env, lp, 1, NULL, lb, ub, NULL, NULL);

    return i;

  }

  int LpCplex::_addRow() 

  {

    int i = CPXgetnumrows (env, lp);

    status = CPXnewrows (env, lp, 1, NULL, NULL, NULL, NULL, NULL);

    return i;

  }

  ///\warning Data at index 0 is ignored iin the arrays.

  void LpCplex::_setRowCoeffs(int i, 

			      int length,

			      int  const * indices, 

			      Value  const * values )

  {

    int rowlist[length+1];

    for (int k=1;k<=length;++k){

      rowlist[k]=i;

    }

    status = CPXchgcoeflist(env, lp, 

			    length, 

			    rowlist++, 

			    inices++, 

			    values++);

  }

  void LpCplex::_setColCoeffs(int i, 

			      int length,

			      int  const * indices, 

			      Value  const * values)

  {

    int collist[length+1];

    for (int k=1;k<=length;++k){

      collist[k]=i;

    }

    status = CPXchgcoeflist(env, lp, 

			    length, 

			    inices++, 

			    collist++, 

			    values++);

  }

  void LpCplex::_setColLowerBound(int i, Value value)

  {

  }

  void LpCplex::_setColUpperBound(int i, Value value)

  {

  }

  void LpCplex::_setRowLowerBound(int i, Value value)

  {

  }

  void LpCplex::_setRowUpperBound(int i, Value value)

  {

  }

  void LpCplex::_setObjCoeff(int i, Value obj_coef)

  {

  }

  LpCplex::SolutionStatus LpCplex::_solve()

  {

    return OPTIMAL;

  }

  LpCplex::Value LpCplex::_getSolution(int i)

  {

    return 0;

  }

} //namespace lemon