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67 lines
2.2 KiB
67 lines
2.2 KiB
/* bfx.h (LP basis factorization driver, rational arithmetic) */
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/***********************************************************************
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* This code is part of GLPK (GNU Linear Programming Kit).
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*
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* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
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* 2009, 2010, 2011, 2013 Andrew Makhorin, Department for Applied
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* Informatics, Moscow Aviation Institute, Moscow, Russia. All rights
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* reserved. E-mail: <mao@gnu.org>.
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*
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* GLPK is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GLPK is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GLPK. If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************/
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#ifndef BFX_H
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#define BFX_H
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#include "glpgmp.h"
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typedef struct BFX BFX;
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#define bfx_create_binv _glp_bfx_create_binv
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BFX *bfx_create_binv(void);
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/* create factorization of the basis matrix */
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#define bfx_is_valid _glp_bfx_is_valid
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int bfx_is_valid(BFX *binv);
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/* check if factorization is valid */
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#define bfx_invalidate _glp_bfx_invalidate
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void bfx_invalidate(BFX *binv);
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/* invalidate factorization of the basis matrix */
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#define bfx_factorize _glp_bfx_factorize
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int bfx_factorize(BFX *binv, int m, int (*col)(void *info, int j,
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int ind[], mpq_t val[]), void *info);
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/* compute factorization of the basis matrix */
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#define bfx_ftran _glp_bfx_ftran
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void bfx_ftran(BFX *binv, mpq_t x[], int save);
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/* perform forward transformation (FTRAN) */
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#define bfx_btran _glp_bfx_btran
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void bfx_btran(BFX *binv, mpq_t x[]);
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/* perform backward transformation (BTRAN) */
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#define bfx_update _glp_bfx_update
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int bfx_update(BFX *binv, int j);
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/* update factorization of the basis matrix */
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#define bfx_delete_binv _glp_bfx_delete_binv
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void bfx_delete_binv(BFX *binv);
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/* delete factorization of the basis matrix */
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#endif
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/* eof */
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