1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/glpbfx.h	Mon Dec 06 13:09:21 2010 +0100
     1.3 @@ -0,0 +1,71 @@
     1.4 +/* glpbfx.h (basis factorization interface, bignum arithmetic) */
     1.5 +
     1.6 +/***********************************************************************
     1.7 +*  This code is part of GLPK (GNU Linear Programming Kit).
     1.8 +*
     1.9 +*  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
    1.10 +*  2009, 2010 Andrew Makhorin, Department for Applied Informatics,
    1.11 +*  Moscow Aviation Institute, Moscow, Russia. All rights reserved.
    1.12 +*  E-mail: <mao@gnu.org>.
    1.13 +*
    1.14 +*  GLPK is free software: you can redistribute it and/or modify it
    1.15 +*  under the terms of the GNU General Public License as published by
    1.16 +*  the Free Software Foundation, either version 3 of the License, or
    1.17 +*  (at your option) any later version.
    1.18 +*
    1.19 +*  GLPK is distributed in the hope that it will be useful, but WITHOUT
    1.20 +*  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    1.21 +*  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
    1.22 +*  License for more details.
    1.23 +*
    1.24 +*  You should have received a copy of the GNU General Public License
    1.25 +*  along with GLPK. If not, see <http://www.gnu.org/licenses/>.
    1.26 +***********************************************************************/
    1.27 +
    1.28 +#ifndef GLPBFX_H
    1.29 +#define GLPBFX_H
    1.30 +
    1.31 +#include "glpgmp.h"
    1.32 +
    1.33 +#ifndef GLPBFX_DEFINED
    1.34 +#define GLPBFX_DEFINED
    1.35 +typedef struct { double _opaque_bfx; } BFX;
    1.36 +#endif
    1.37 +
    1.38 +#define bfx_create_binv       _glp_bfx_create_binv
    1.39 +#define bfx_is_valid          _glp_bfx_is_valid
    1.40 +#define bfx_invalidate        _glp_bfx_invalidate
    1.41 +#define bfx_factorize         _glp_bfx_factorize
    1.42 +#define bfx_ftran             _glp_bfx_ftran
    1.43 +#define bfx_btran             _glp_bfx_btran
    1.44 +#define bfx_update            _glp_bfx_update
    1.45 +#define bfx_delete_binv       _glp_bfx_delete_binv
    1.46 +
    1.47 +BFX *bfx_create_binv(void);
    1.48 +/* create factorization of the basis matrix */
    1.49 +
    1.50 +int bfx_is_valid(BFX *binv);
    1.51 +/* check if factorization is valid */
    1.52 +
    1.53 +void bfx_invalidate(BFX *binv);
    1.54 +/* invalidate factorization of the basis matrix */
    1.55 +
    1.56 +int bfx_factorize(BFX *binv, int m, int (*col)(void *info, int j,
    1.57 +      int ind[], mpq_t val[]), void *info);
    1.58 +/* compute factorization of the basis matrix */
    1.59 +
    1.60 +void bfx_ftran(BFX *binv, mpq_t x[], int save);
    1.61 +/* perform forward transformation (FTRAN) */
    1.62 +
    1.63 +void bfx_btran(BFX *binv, mpq_t x[]);
    1.64 +/* perform backward transformation (BTRAN) */
    1.65 +
    1.66 +int bfx_update(BFX *binv, int j);
    1.67 +/* update factorization of the basis matrix */
    1.68 +
    1.69 +void bfx_delete_binv(BFX *binv);
    1.70 +/* delete factorization of the basis matrix */
    1.71 +
    1.72 +#endif
    1.73 +
    1.74 +/* eof */