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

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// Copyright (C) 2004, 2006 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Common Public License.
//
// $Id: IpRestoIterateInitializer.hpp 735 2006-06-04 06:10:05Z andreasw $
//
// Authors:  Carl Laird, Andreas Waechter              IBM    2004-09-24

#ifndef __IPRESTOITERATEINITIALIZER_HPP__
#define __IPRESTOITERATEINITIALIZER_HPP__

#include "IpIterateInitializer.hpp"
#include "IpEqMultCalculator.hpp"

namespace Ipopt
{
  class RestoIterateInitializer: public IterateInitializer
  {
  public:
    RestoIterateInitializer
    (const SmartPtr<EqMultiplierCalculator>& eq_mult_calculator);

    virtual ~RestoIterateInitializer()
    {}

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

    virtual bool SetInitialIterates();

    static void RegisterOptions(SmartPtr<RegisteredOptions> roptions);

  private:
    RestoIterateInitializer();

    RestoIterateInitializer(const RestoIterateInitializer&);

    void operator=(const RestoIterateInitializer&);

    Number constr_mult_init_max_;

    SmartPtr<EqMultiplierCalculator> resto_eq_mult_calculator_;

    void solve_quadratic(const Vector& a, const Vector& b, Vector& v);
  };

} // namespace Ipopt

#endif

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