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// Copyright (C) 2005, 2007 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Common Public License.
//
// $Id: hs071_nlp.hpp 949 2007-03-27 00:41:26Z andreasw $
//
// Authors:  Carl Laird, Andreas Waechter     IBM    2005-08-09

#ifndef __HS071_NLP_HPP__
#define __HS071_NLP_HPP__

#include "IpTNLP.hpp"

using namespace Ipopt;

class HS071_NLP : public TNLP
{
public:
  HS071_NLP();

  virtual ~HS071_NLP();

  virtual bool get_nlp_info(Index& n, Index& m, Index& nnz_jac_g,
                            Index& nnz_h_lag, IndexStyleEnum& index_style);

  virtual bool get_bounds_info(Index n, Number* x_l, Number* x_u,
                               Index m, Number* g_l, Number* g_u);

  virtual bool get_starting_point(Index n, bool init_x, Number* x,
                                  bool init_z, Number* z_L, Number* z_U,
                                  Index m, bool init_lambda,
                                  Number* lambda);

  virtual bool eval_f(Index n, const Number* x, bool new_x, Number& obj_value);

  virtual bool eval_grad_f(Index n, const Number* x, bool new_x, Number* grad_f);

  virtual bool eval_g(Index n, const Number* x, bool new_x, Index m, Number* g);

  virtual bool eval_jac_g(Index n, const Number* x, bool new_x,
                          Index m, Index nele_jac, Index* iRow, Index *jCol,
                          Number* values);

  virtual bool eval_h(Index n, const Number* x, bool new_x,
                      Number obj_factor, Index m, const Number* lambda,
                      bool new_lambda, Index nele_hess, Index* iRow,
                      Index* jCol, Number* values);


  virtual void finalize_solution(SolverReturn status,
                                 Index n, const Number* x, const Number* z_L, const Number* z_U,
                                 Index m, const Number* g, const Number* lambda,
                                 Number obj_value,
                                 const IpoptData* ip_data,
                                 IpoptCalculatedQuantities* ip_cq);

private:
  //  HS071_NLP();
  HS071_NLP(const HS071_NLP&);
  HS071_NLP& operator=(const HS071_NLP&);
};


#endif

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