diff -r d59bea55db9b -r c445c931472f src/glpbfx.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/glpbfx.h	Mon Dec 06 13:09:21 2010 +0100
@@ -0,0 +1,71 @@
+/* glpbfx.h (basis factorization interface, bignum arithmetic) */
+
+/***********************************************************************
+*  This code is part of GLPK (GNU Linear Programming Kit).
+*
+*  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+*  2009, 2010 Andrew Makhorin, Department for Applied Informatics,
+*  Moscow Aviation Institute, Moscow, Russia. All rights reserved.
+*  E-mail: <mao@gnu.org>.
+*
+*  GLPK 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.
+*
+*  GLPK 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 GLPK. If not, see <http://www.gnu.org/licenses/>.
+***********************************************************************/
+
+#ifndef GLPBFX_H
+#define GLPBFX_H
+
+#include "glpgmp.h"
+
+#ifndef GLPBFX_DEFINED
+#define GLPBFX_DEFINED
+typedef struct { double _opaque_bfx; } BFX;
+#endif
+
+#define bfx_create_binv       _glp_bfx_create_binv
+#define bfx_is_valid          _glp_bfx_is_valid
+#define bfx_invalidate        _glp_bfx_invalidate
+#define bfx_factorize         _glp_bfx_factorize
+#define bfx_ftran             _glp_bfx_ftran
+#define bfx_btran             _glp_bfx_btran
+#define bfx_update            _glp_bfx_update
+#define bfx_delete_binv       _glp_bfx_delete_binv
+
+BFX *bfx_create_binv(void);
+/* create factorization of the basis matrix */
+
+int bfx_is_valid(BFX *binv);
+/* check if factorization is valid */
+
+void bfx_invalidate(BFX *binv);
+/* invalidate factorization of the basis matrix */
+
+int bfx_factorize(BFX *binv, int m, int (*col)(void *info, int j,
+      int ind[], mpq_t val[]), void *info);
+/* compute factorization of the basis matrix */
+
+void bfx_ftran(BFX *binv, mpq_t x[], int save);
+/* perform forward transformation (FTRAN) */
+
+void bfx_btran(BFX *binv, mpq_t x[]);
+/* perform backward transformation (BTRAN) */
+
+int bfx_update(BFX *binv, int j);
+/* update factorization of the basis matrix */
+
+void bfx_delete_binv(BFX *binv);
+/* delete factorization of the basis matrix */
+
+#endif
+
+/* eof */