Sm_lps5_5.h

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/*
 * Lurupa, a library for verified linear programming.
 * Copyright (C) 2006 by Christian Keil
 *
 * This file is part of Lurupa.
 *
 * Lurupa is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

#ifndef SM_LPS5_5_H
#define SM_LPS5_5_H

#include <lurupa/Solver_module.h>
#include <lp_lib.h>

#ifndef LU_SM_LPS5_5_SCOPE
#  if defined(_WIN32) || defined(WIN32)
#    ifdef DLL_EXPORT
#      define LU_SM_LPS5_5_SCOPE __declspec(dllexport)
#    elif defined LU_SM_LPS5_5_IMPORT
#      define LU_SM_LPS5_5_SCOPE __declspec(dllimport)
#    endif
#  endif
#  ifndef LU_SM_LPS5_5_SCOPE
#    define LU_SM_LPS5_5_SCOPE
#  endif
#endif

class Lp_lp_solve : public Lp_solver {
public:
  Lp_lp_solve();
  ~Lp_lp_solve();

  lprec *lp;       
  int *mp_eq_con;  
  int *mp_le_con;  
};

extern "C" LU_SM_LPS5_5_SCOPE void get_func_pointers(Solver_module_interface &i);
/* extern "C" LU_SM_LPS5_5_SCOPE void Sm_lps5_5_LTX_get_func_pointers(Solver_module_interface &i); */

class Sm_lps5_5 : public Solver_module {
public:
  static const char *get_version();

  static void print_version();
  static void print_brief_version();

  static bool init(Report *report);

  static double get_accuracy();

  static void print_options();

  static bool set_module_options(Lp *lp, int argc, char *argv[]);

  static bool read_lp(Lp *lp, FILE *in, const double relative_interval_radius, double &eta);

  static bool set_lp(Lp *lp, const double relative_interval_radius, double &eta);

  static bool solve_original(Lp *lp, double &optimal_value);

  static bool solve_primal_perturbed(const Primal_deflation &deflation, Lp *lp, 
                                     const int iteration);

  static bool solve_dual_perturbed(const VECTOR &deflation_c, Lp *lp, const int iteration);

  static bool get_dual_ray(Lp *lp, int &iyzray);

  static bool get_primal_ray(Lp *lp, int &ixray);

  static void set_primal_phase1(Lp *lp);

  static void set_dual_phase1(Lp *lp);

  static void restore_primal(Lp *lp);

  static void restore_dual(Lp *lp);

  static void restore_primal_phase1(Lp *);

  static void restore_dual_phase1(Lp *);

  static void lp2solver(Lp *lp);

  static void set_bounds(Lp *lp, int var, double lower, double upper);

private:
  static int verbosity;  
  static long timeout;   
  static MYBOOL trace;   
  static void write_lp(const char *sz_description, lprec *lp_lps, char *sz_file);

  static void __WINAPI lps_log(lprec *lp_lps, void *userhandle, char *buf);

  static void read_general_data(Lp *lp);

  static bool build_constraint_maps(int &c_eq, int &c_le, const int rows, const int cols, Lp *lp);

  static void find_free_variables(const int vars, Lp *lp, int *c_inf_bnd);

  static void resize_lp(Lp *lp, const int cols, const int c_eq, const int c_le);

  static bool read_lp_mat(const int rows, Lp *lp);

  static void read_right_hand_sides(Lp *lp);

  static void read_simple_bounds(Lp *lp);

  static void adjust_eta(double &eta, const Lp *lp);

  static void inflate_lp(Lp *lp, const double r);

  static bool transform_lp(Lp *lp, const double relative_interval_radius, double &eta);
  static bool solve_lp(Lp *lp);

  static bool read_primals(Lp *lp);

  static bool read_duals(Lp *lp);

  static void primal_perturb(const Primal_deflation &d, const Lp *lp);

  static void dual_perturb(const VECTOR &d_c, const Lp *lp);


  static Write_mps write_mps; 
  static bool freset_bas;     
  Sm_lps5_5();
  ~Sm_lps5_5();
};

#endif /* ifdef SM_LPS5_5_H */

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