/home/coin/SVN-release/CoinAll-1.1.0/Ipopt/src/Algorithm/LinearSolvers/IpGenKKTSolverInterface.hpp

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// Copyright (C) 2007 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Common Public License.
//
// $Id: IpGenKKTSolverInterface.hpp 915 2007-03-02 22:21:11Z andreasw $
//
// Authors:  Andreas Waechter     IBM    2007-03-01

#ifndef __IPGENKKTSOLVERINTERFACE_HPP__
#define __IPGENKKTSOLVERINTERFACE_HPP__

#include "IpUtils.hpp"
#include "IpAlgStrategy.hpp"
#include "IpSymLinearSolver.hpp"

namespace Ipopt
{
  class GenKKTSolverInterface: public AlgorithmStrategyObject
  {
  public:
    GenKKTSolverInterface()
    {}

    virtual ~GenKKTSolverInterface()
    {}

    virtual bool InitializeImpl(const OptionsList& options,
                                const std::string& prefix) = 0;

    virtual ESymSolverStatus MultiSolve(
      bool new_matrix 
      , Index n_x  
      , Index n_c 
      , Index n_d 
      , SmartPtr<const SymMatrix> W 
      , SmartPtr<const Matrix> Jac_c 
      , SmartPtr<const Matrix> Jac_d 
      , const Number* D_x 
      , const Number* D_s 
      , const Number* D_c 
      , const Number* D_d 
      , Number delta_x 
      , Number delta_s 
      , Number delta_c 
      , Number delta_d 
      , Index n_rhs  
      , Number* rhssol 
      , bool check_NegEVals 
      , Index numberOfNegEVals 
    )=0;

    virtual Index NumberOfNegEVals() const =0;

    //* @name Options of Linear solver */

    virtual bool IncreaseQuality() =0;

    virtual bool ProvidesInertia() const =0;
  };

} // namespace Ipopt

#endif

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