alpar@1: /* glpbfd.h (LP basis factorization driver) */
alpar@1: 
alpar@1: /***********************************************************************
alpar@1: *  This code is part of GLPK (GNU Linear Programming Kit).
alpar@1: *
alpar@1: *  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
alpar@1: *  2009, 2010 Andrew Makhorin, Department for Applied Informatics,
alpar@1: *  Moscow Aviation Institute, Moscow, Russia. All rights reserved.
alpar@1: *  E-mail: <mao@gnu.org>.
alpar@1: *
alpar@1: *  GLPK is free software: you can redistribute it and/or modify it
alpar@1: *  under the terms of the GNU General Public License as published by
alpar@1: *  the Free Software Foundation, either version 3 of the License, or
alpar@1: *  (at your option) any later version.
alpar@1: *
alpar@1: *  GLPK is distributed in the hope that it will be useful, but WITHOUT
alpar@1: *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
alpar@1: *  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
alpar@1: *  License for more details.
alpar@1: *
alpar@1: *  You should have received a copy of the GNU General Public License
alpar@1: *  along with GLPK. If not, see <http://www.gnu.org/licenses/>.
alpar@1: ***********************************************************************/
alpar@1: 
alpar@1: #ifndef GLPBFD_H
alpar@1: #define GLPBFD_H
alpar@1: 
alpar@1: #ifndef GLPBFD_PRIVATE
alpar@1: typedef struct { double _opaque_bfd[100]; } BFD;
alpar@1: #endif
alpar@1: 
alpar@1: /* return codes: */
alpar@1: #define BFD_ESING    1  /* singular matrix */
alpar@1: #define BFD_ECOND    2  /* ill-conditioned matrix */
alpar@1: #define BFD_ECHECK   3  /* insufficient accuracy */
alpar@1: #define BFD_ELIMIT   4  /* update limit reached */
alpar@1: #define BFD_EROOM    5  /* SVA overflow */
alpar@1: 
alpar@1: #define bfd_create_it _glp_bfd_create_it
alpar@1: BFD *bfd_create_it(void);
alpar@1: /* create LP basis factorization */
alpar@1: 
alpar@1: #define bfd_set_parm _glp_bfd_set_parm
alpar@1: void bfd_set_parm(BFD *bfd, const void *parm);
alpar@1: /* change LP basis factorization control parameters */
alpar@1: 
alpar@1: #define bfd_factorize _glp_bfd_factorize
alpar@1: int bfd_factorize(BFD *bfd, int m, const int bh[], int (*col)
alpar@1:       (void *info, int j, int ind[], double val[]), void *info);
alpar@1: /* compute LP basis factorization */
alpar@1: 
alpar@1: #define bfd_ftran _glp_bfd_ftran
alpar@1: void bfd_ftran(BFD *bfd, double x[]);
alpar@1: /* perform forward transformation (solve system B*x = b) */
alpar@1: 
alpar@1: #define bfd_btran _glp_bfd_btran
alpar@1: void bfd_btran(BFD *bfd, double x[]);
alpar@1: /* perform backward transformation (solve system B'*x = b) */
alpar@1: 
alpar@1: #define bfd_update_it _glp_bfd_update_it
alpar@1: int bfd_update_it(BFD *bfd, int j, int bh, int len, const int ind[],
alpar@1:       const double val[]);
alpar@1: /* update LP basis factorization */
alpar@1: 
alpar@1: #define bfd_get_count _glp_bfd_get_count
alpar@1: int bfd_get_count(BFD *bfd);
alpar@1: /* determine factorization update count */
alpar@1: 
alpar@1: #define bfd_delete_it _glp_bfd_delete_it
alpar@1: void bfd_delete_it(BFD *bfd);
alpar@1: /* delete LP basis factorization */
alpar@1: 
alpar@1: #endif
alpar@1: 
alpar@1: /* eof */