IpInexactNormalStepCalc.hpp

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// Copyright (C) 2008 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// $Id: IpInexactNormalStepCalc.hpp 1861 2010-12-21 21:34:47Z andreasw $
//
// Authors:  Andreas Waechter            IBM    2008-08-31

#ifndef __IPINEXACTNORMALSTEPCALC_HPP__
#define __IPINEXACTNORMALSTEPCALC_HPP__

#include "IpAlgStrategy.hpp"
#include "IpInexactCq.hpp"

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

    virtual ~InexactNormalStepCalculator()
    {}

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

    virtual bool ComputeNormalStep(SmartPtr<Vector>& normal_x,
                                   SmartPtr<Vector>& normal_s) = 0;

  protected:
    InexactData& InexData()
    {
      InexactData& inexact_data =
        static_cast<InexactData&>(IpData().AdditionalData());
      DBG_ASSERT(dynamic_cast<InexactData*>(&IpData().AdditionalData()));
      return inexact_data;
    }

    InexactCq& InexCq()
    {
      InexactCq& inexact_cq =
        static_cast<InexactCq&>(IpCq().AdditionalCq());
      DBG_ASSERT(dynamic_cast<InexactCq*>(&IpCq().AdditionalCq()));
      return inexact_cq;
    }

  private:
    InexactNormalStepCalculator(const InexactNormalStepCalculator&);

    void operator=(const InexactNormalStepCalculator&);
  };

} // namespace Ipopt

#endif