/usr/include/octave-4.0.3/octave/sparse-base-lu.h is in liboctave-dev 4.0.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | /*
Copyright (C) 2004-2015 David Bateman
Copyright (C) 1998-2004 Andy Adler
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/>.
*/
#if !defined (octave_sparse_base_lu_h)
#define octave_sparse_base_lu_h 1
#include "MArray.h"
#include "dSparse.h"
template <class lu_type, class lu_elt_type, class p_type, class p_elt_type>
class
sparse_base_lu
{
public:
sparse_base_lu (void)
: Lfact (), Ufact (), Rfact (), cond (0), P (), Q () { }
sparse_base_lu (const sparse_base_lu& a)
: Lfact (a.Lfact), Ufact (a.Ufact), Rfact (), cond (a.cond),
P (a.P), Q (a.Q)
{ }
sparse_base_lu& operator = (const sparse_base_lu& a)
{
if (this != &a)
{
Lfact = a.Lfact;
Ufact = a.Ufact;
cond = a.cond;
P = a.P;
Q = a.Q;
}
return *this;
}
virtual ~sparse_base_lu (void) { }
lu_type L (void) const { return Lfact; }
lu_type U (void) const { return Ufact; }
SparseMatrix R (void) const { return Rfact; }
lu_type Y (void) const;
p_type Pc (void) const;
p_type Pr (void) const;
ColumnVector Pc_vec (void) const;
ColumnVector Pr_vec (void) const;
PermMatrix Pc_mat (void) const;
PermMatrix Pr_mat (void) const;
const octave_idx_type * row_perm (void) const { return P.fortran_vec (); }
const octave_idx_type * col_perm (void) const { return Q.fortran_vec (); }
double rcond (void) const { return cond; }
protected:
lu_type Lfact;
lu_type Ufact;
SparseMatrix Rfact;
double cond;
MArray<octave_idx_type> P;
MArray<octave_idx_type> Q;
};
#endif
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