alpar@9: /* glpbfx.h (basis factorization interface, bignum arithmetic) */
alpar@9: 
alpar@9: /***********************************************************************
alpar@9: *  This code is part of GLPK (GNU Linear Programming Kit).
alpar@9: *
alpar@9: *  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
alpar@9: *  2009, 2010, 2011 Andrew Makhorin, Department for Applied Informatics,
alpar@9: *  Moscow Aviation Institute, Moscow, Russia. All rights reserved.
alpar@9: *  E-mail: <mao@gnu.org>.
alpar@9: *
alpar@9: *  GLPK is free software: you can redistribute it and/or modify it
alpar@9: *  under the terms of the GNU General Public License as published by
alpar@9: *  the Free Software Foundation, either version 3 of the License, or
alpar@9: *  (at your option) any later version.
alpar@9: *
alpar@9: *  GLPK is distributed in the hope that it will be useful, but WITHOUT
alpar@9: *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
alpar@9: *  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
alpar@9: *  License for more details.
alpar@9: *
alpar@9: *  You should have received a copy of the GNU General Public License
alpar@9: *  along with GLPK. If not, see <http://www.gnu.org/licenses/>.
alpar@9: ***********************************************************************/
alpar@9: 
alpar@9: #ifndef GLPBFX_H
alpar@9: #define GLPBFX_H
alpar@9: 
alpar@9: #include "glpgmp.h"
alpar@9: 
alpar@9: #ifndef GLPBFX_DEFINED
alpar@9: #define GLPBFX_DEFINED
alpar@9: typedef struct { double _opaque_bfx; } BFX;
alpar@9: #endif
alpar@9: 
alpar@9: #define bfx_create_binv       _glp_bfx_create_binv
alpar@9: #define bfx_is_valid          _glp_bfx_is_valid
alpar@9: #define bfx_invalidate        _glp_bfx_invalidate
alpar@9: #define bfx_factorize         _glp_bfx_factorize
alpar@9: #define bfx_ftran             _glp_bfx_ftran
alpar@9: #define bfx_btran             _glp_bfx_btran
alpar@9: #define bfx_update            _glp_bfx_update
alpar@9: #define bfx_delete_binv       _glp_bfx_delete_binv
alpar@9: 
alpar@9: BFX *bfx_create_binv(void);
alpar@9: /* create factorization of the basis matrix */
alpar@9: 
alpar@9: int bfx_is_valid(BFX *binv);
alpar@9: /* check if factorization is valid */
alpar@9: 
alpar@9: void bfx_invalidate(BFX *binv);
alpar@9: /* invalidate factorization of the basis matrix */
alpar@9: 
alpar@9: int bfx_factorize(BFX *binv, int m, int (*col)(void *info, int j,
alpar@9:       int ind[], mpq_t val[]), void *info);
alpar@9: /* compute factorization of the basis matrix */
alpar@9: 
alpar@9: void bfx_ftran(BFX *binv, mpq_t x[], int save);
alpar@9: /* perform forward transformation (FTRAN) */
alpar@9: 
alpar@9: void bfx_btran(BFX *binv, mpq_t x[]);
alpar@9: /* perform backward transformation (BTRAN) */
alpar@9: 
alpar@9: int bfx_update(BFX *binv, int j);
alpar@9: /* update factorization of the basis matrix */
alpar@9: 
alpar@9: void bfx_delete_binv(BFX *binv);
alpar@9: /* delete factorization of the basis matrix */
alpar@9: 
alpar@9: #endif
alpar@9: 
alpar@9: /* eof */