|
1 /* glpbfx.h (basis factorization interface, bignum arithmetic) */ |
|
2 |
|
3 /*********************************************************************** |
|
4 * This code is part of GLPK (GNU Linear Programming Kit). |
|
5 * |
|
6 * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
|
7 * 2009, 2010 Andrew Makhorin, Department for Applied Informatics, |
|
8 * Moscow Aviation Institute, Moscow, Russia. All rights reserved. |
|
9 * E-mail: <mao@gnu.org>. |
|
10 * |
|
11 * GLPK is free software: you can redistribute it and/or modify it |
|
12 * under the terms of the GNU General Public License as published by |
|
13 * the Free Software Foundation, either version 3 of the License, or |
|
14 * (at your option) any later version. |
|
15 * |
|
16 * GLPK is distributed in the hope that it will be useful, but WITHOUT |
|
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
|
18 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
|
19 * License for more details. |
|
20 * |
|
21 * You should have received a copy of the GNU General Public License |
|
22 * along with GLPK. If not, see <http://www.gnu.org/licenses/>. |
|
23 ***********************************************************************/ |
|
24 |
|
25 #ifndef GLPBFX_H |
|
26 #define GLPBFX_H |
|
27 |
|
28 #include "glpgmp.h" |
|
29 |
|
30 #ifndef GLPBFX_DEFINED |
|
31 #define GLPBFX_DEFINED |
|
32 typedef struct { double _opaque_bfx; } BFX; |
|
33 #endif |
|
34 |
|
35 #define bfx_create_binv _glp_bfx_create_binv |
|
36 #define bfx_is_valid _glp_bfx_is_valid |
|
37 #define bfx_invalidate _glp_bfx_invalidate |
|
38 #define bfx_factorize _glp_bfx_factorize |
|
39 #define bfx_ftran _glp_bfx_ftran |
|
40 #define bfx_btran _glp_bfx_btran |
|
41 #define bfx_update _glp_bfx_update |
|
42 #define bfx_delete_binv _glp_bfx_delete_binv |
|
43 |
|
44 BFX *bfx_create_binv(void); |
|
45 /* create factorization of the basis matrix */ |
|
46 |
|
47 int bfx_is_valid(BFX *binv); |
|
48 /* check if factorization is valid */ |
|
49 |
|
50 void bfx_invalidate(BFX *binv); |
|
51 /* invalidate factorization of the basis matrix */ |
|
52 |
|
53 int bfx_factorize(BFX *binv, int m, int (*col)(void *info, int j, |
|
54 int ind[], mpq_t val[]), void *info); |
|
55 /* compute factorization of the basis matrix */ |
|
56 |
|
57 void bfx_ftran(BFX *binv, mpq_t x[], int save); |
|
58 /* perform forward transformation (FTRAN) */ |
|
59 |
|
60 void bfx_btran(BFX *binv, mpq_t x[]); |
|
61 /* perform backward transformation (BTRAN) */ |
|
62 |
|
63 int bfx_update(BFX *binv, int j); |
|
64 /* update factorization of the basis matrix */ |
|
65 |
|
66 void bfx_delete_binv(BFX *binv); |
|
67 /* delete factorization of the basis matrix */ |
|
68 |
|
69 #endif |
|
70 |
|
71 /* eof */ |