1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
Copyright (C) 1994, 1995, 1996, 1997, 1999, 2002, 2003, 2004, 2005,
2007 John W. Eaton
This file is part of Octave.
Octave 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.
Octave 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 Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "dbleLU.h"
#include "f77-fcn.h"
#include "lo-error.h"
// Instantiate the base LU class for the types we need.
#include <base-lu.h>
#include <base-lu.cc>
template class base_lu <Matrix, double, Matrix, double>;
// Define the constructor for this particular derivation.
extern "C"
{
F77_RET_T
F77_FUNC (dgetrf, DGETRF) (const octave_idx_type&, const octave_idx_type&, double*,
const octave_idx_type&, octave_idx_type*, octave_idx_type&);
}
LU::LU (const Matrix& a)
{
octave_idx_type a_nr = a.rows ();
octave_idx_type a_nc = a.cols ();
octave_idx_type mn = (a_nr < a_nc ? a_nr : a_nc);
ipvt.resize (mn);
octave_idx_type *pipvt = ipvt.fortran_vec ();
a_fact = a;
double *tmp_data = a_fact.fortran_vec ();
octave_idx_type info = 0;
F77_XFCN (dgetrf, DGETRF, (a_nr, a_nc, tmp_data, a_nr, pipvt, info));
if (f77_exception_encountered)
(*current_liboctave_error_handler) ("unrecoverable error in dgetrf");
else
ipvt -= static_cast<octave_idx_type> (1);
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
|
