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/*
* gretl -- Gnu Regression, Econometrics and Time-series Library
* Copyright (C) 2001 Allin Cottrell and Riccardo "Jack" Lucchetti
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef GRETL_LPSOLVE_H
#define GRETL_LPSOLVE_H
/* Definitions we need for the gretl lpsolve plugin */
typedef struct _lprec lprec;
typedef double REAL;
enum { LE = 1, GE, EQ };
/* reporting levels */
#define NEUTRAL 0
#define CRITICAL 1
#define SEVERE 2
#define IMPORTANT 3
#define NORMAL 4
#define DETAILED 5
#define FULL 6
/* solver status values */
#define UNKNOWNERROR -5
#define DATAIGNORED -4
#define NOBFP -3
#define NOMEMORY -2
#define NOTRUN -1
#define OPTIMAL 0
#define SUBOPTIMAL 1
#define INFEASIBLE 2
#define UNBOUNDED 3
#define DEGENERATE 4
#define NUMFAILURE 5
#define USERABORT 6
#define TIMEOUT 7
#define RUNNING 8
#define PRESOLVED 9
#ifdef PRELINKED
/* Declarations we need for the gretl lpsolve plugin */
lprec *make_lp (int rows, int columns);
lprec *read_lp (FILE *fp, int verbose, char *lp_name);
unsigned char set_add_rowmode (lprec *lp, unsigned char s);
void delete_lp (lprec *lp);
void set_verbose (lprec *lp, int verbose);
void set_maxim (lprec *lp);
void set_minim (lprec *lp);
unsigned char set_lp_name (lprec *lp, char *s);
unsigned char set_obj_fn (lprec *lp, REAL *row);
unsigned char add_constraint (lprec *lp, REAL *row,
int constr_type, REAL rh);
unsigned char set_col_name (lprec *lp, int col, char *name);
unsigned char set_row_name (lprec *lp, int row, char *name);
char *get_col_name (lprec *lp, int col);
char *get_row_name (lprec *lp, int row);
unsigned char set_int (lprec *lp, int col, unsigned char s);
int get_Nrows (lprec *lp);
int get_Ncolumns (lprec *lp);
int solve (lprec *lp);
void print_objective (lprec *lp);
void print_solution (lprec *lp, int columns);
void print_constraints (lprec *lp, int columns);
void print_duals (lprec *lp);
REAL get_objective (lprec *lp);
REAL get_accuracy (lprec *lp);
unsigned char get_primal_solution (lprec *lp, REAL *pv);
unsigned char get_dual_solution (lprec *lp, REAL *duals);
unsigned char get_sensitivity_rhs (lprec *lp, REAL *duals,
REAL *from, REAL *till);
void set_outputstream (lprec *lp, FILE *fp);
#endif /* PRELINKED */
#endif /* GRETL_LPSOLVE_H */
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