IpInexactTSymScalingMethod.hpp

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// Copyright (C) 2009 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// $Id: IpInexactTSymScalingMethod.hpp 2206 2013-04-13 15:29:15Z stefan $
//
// Authors:  Andreas Waechter, Frank E. Curtis         IBM    2009-06-12
//               (based on IpMc19TSymScalingMethod.hpp rev 699)

#ifndef __IPINEXACTTSYMSCALINGMETHOD_HPP__
#define __IPINEXACTTSYMSCALINGMETHOD_HPP__

#include "IpUtils.hpp"
#include "IpTSymScalingMethod.hpp"
#include "IpInexactCq.hpp"

namespace Ipopt
{

  class InexactTSymScalingMethod: public TSymScalingMethod
  {
  public:
    InexactTSymScalingMethod()
    {}

    virtual ~InexactTSymScalingMethod()
    {}

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

    virtual bool ComputeSymTScalingFactors(Index n,
                                           Index nnz,
                                           const ipfint* airn,
                                           const ipfint* ajcn,
                                           const double* a,
                                           double* scaling_factors);
  private:
    InexactTSymScalingMethod(const InexactTSymScalingMethod&);

    void operator=(const InexactTSymScalingMethod&);

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

  };


} // namespace Ipopt

#endif