This file is indexed.

/usr/include/octave-3.8.1/octave/sparse-base-chol.h is in liboctave-dev 3.8.1-1ubuntu1.

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
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
/*

Copyright (C) 2005-2013 David Bateman
Copyright (C) 1998-2005 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_chol_h)
#define octave_sparse_base_chol_h 1

#include "oct-sparse.h"
#include "dColVector.h"

template <class chol_type, class chol_elt, class p_type>
class
sparse_base_chol
{
protected:
#ifdef HAVE_CHOLMOD
  class sparse_base_chol_rep
  {
  public:
    sparse_base_chol_rep (void)
      : count (1), Lsparse (0), Common (), is_pd (false), minor_p (0),
        perms (), cond (0)
    { }

    sparse_base_chol_rep (const chol_type& a, bool natural, bool force)
      : count (1), Lsparse (0), Common (), is_pd (false), minor_p (0),
        perms (), cond (0)
    {
      init (a, natural, force);
    }

    sparse_base_chol_rep (const chol_type& a, octave_idx_type& info,
                          bool natural, bool force)
      : count (1), Lsparse (0), Common (), is_pd (false), minor_p (0),
        perms (), cond (0)
    {
      info = init (a, natural, force);
    }

    ~sparse_base_chol_rep (void)
    {
      if (is_pd)
        CHOLMOD_NAME (free_sparse) (&Lsparse, &Common);
    }

    cholmod_sparse * L (void) const { return Lsparse; }

    octave_idx_type P (void) const
    {
      return (minor_p == static_cast<octave_idx_type>(Lsparse->ncol) ?
              0 : minor_p + 1);
    }

    ColumnVector perm (void) const { return perms + 1; }

    p_type Q (void) const;

    bool is_positive_definite (void) const { return is_pd; }

    double rcond (void) const { return cond; }

    octave_refcount<int> count;

  private:
    cholmod_sparse *Lsparse;

    cholmod_common Common;

    bool is_pd;

    octave_idx_type minor_p;

    ColumnVector perms;

    double cond;

    octave_idx_type init (const chol_type& a, bool natural, bool force);

    void drop_zeros (const cholmod_sparse* S);

    // No copying!

    sparse_base_chol_rep (const sparse_base_chol_rep&);

    sparse_base_chol_rep& operator = (const sparse_base_chol_rep&);
  };
#else
  class sparse_base_chol_rep
  {
  public:
    sparse_base_chol_rep (void)
      : count (1), is_pd (false), minor_p (0), perms (), cond (0) { }

    sparse_base_chol_rep (const chol_type& a, bool natural, bool force)
      : count (1), is_pd (false), minor_p (0), perms (), cond (0)
    {
      init (a, natural, force);
    }

    sparse_base_chol_rep (const chol_type& a, octave_idx_type& info,
                          bool natural, bool force)
      : count (1), is_pd (false), minor_p (0), perms (), cond (0)
    {
      info = init (a, natural, force);
    }

    ~sparse_base_chol_rep (void) { }

    octave_idx_type P (void) const { return 0; }

    ColumnVector perm (void) const { return perms + 1; }

    p_type Q (void) const;

    bool is_positive_definite (void) const { return is_pd; }

    double rcond (void) const { return cond; }

    octave_refcount<int> count;

  private:
    bool is_pd;

    octave_idx_type minor_p;

    ColumnVector perms;

    double cond;

    octave_idx_type init (const chol_type& a, bool natural, bool force);

    // No copying!

    sparse_base_chol_rep (const sparse_base_chol_rep&);

    sparse_base_chol_rep& operator = (const sparse_base_chol_rep&);
  };
#endif

private:
  sparse_base_chol_rep *rep;

public:

  sparse_base_chol (void)
    : rep (new typename
           sparse_base_chol<chol_type, chol_elt, p_type>
           ::sparse_base_chol_rep ())
  { }

  sparse_base_chol (const chol_type& a, bool natural, bool force)
    : rep (new typename
           sparse_base_chol<chol_type, chol_elt, p_type>
           ::sparse_base_chol_rep (a, natural, force))
  { }

  sparse_base_chol (const chol_type& a, octave_idx_type& info,
                    bool natural, bool force)
    : rep (new typename
           sparse_base_chol<chol_type, chol_elt, p_type>
           ::sparse_base_chol_rep (a, info, natural, force))
  { }

  sparse_base_chol (const sparse_base_chol<chol_type, chol_elt, p_type>& a)
    : rep (a.rep)
  { rep->count++; }

  virtual ~sparse_base_chol (void)
  {
    if (--rep->count == 0)
      delete rep;
  }

  sparse_base_chol& operator = (const sparse_base_chol& a)
  {
    if (this != &a)
      {
        if (--rep->count == 0)
          delete rep;

        rep = a.rep;
        rep->count++;
      }

    return *this;
  }

  chol_type L (void) const;

  chol_type R (void) const { return L ().hermitian (); }

  octave_idx_type P (void) const { return rep->P (); }

  ColumnVector perm (void) const { return rep->perm (); }

  p_type Q (void) const { return rep->Q (); }

  bool is_positive_definite (void) const
  { return rep->is_positive_definite (); }

  double rcond (void) const { return rep->rcond (); }

  chol_type inverse (void) const;
};

#endif