This file is indexed.

/usr/include/octave-4.2.2/octave/ov-flt-re-mat.h is in liboctave-dev 4.2.2-1ubuntu1.

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
226
227
228
229
/*

Copyright (C) 1996-2017 John W. Eaton
Copyright (C) 2009-2010 VZLU Prague

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_ov_flt_re_mat_h)
#define octave_ov_flt_re_mat_h 1

#include "octave-config.h"

#include <cstdlib>

#include <iosfwd>
#include <string>

#include "mx-base.h"
#include "str-vec.h"

#include "error.h"
#include "oct-stream.h"
#include "ov-base.h"
#include "ov-base-mat.h"
#include "ov-typeinfo.h"

#include "MatrixType.h"

class octave_value_list;

class tree_walker;

// Real matrix values.

class
OCTINTERP_API
octave_float_matrix : public octave_base_matrix<FloatNDArray>
{
public:

  octave_float_matrix (void)
    : octave_base_matrix<FloatNDArray> () { }

  octave_float_matrix (const FloatMatrix& m)
    : octave_base_matrix<FloatNDArray> (m) { }

  octave_float_matrix (const FloatMatrix& m, const MatrixType& t)
    : octave_base_matrix<FloatNDArray> (m, t) { }

  octave_float_matrix (const FloatNDArray& nda)
    : octave_base_matrix<FloatNDArray> (nda) { }

  octave_float_matrix (const Array<float>& m)
    : octave_base_matrix<FloatNDArray> (FloatNDArray (m)) { }

  octave_float_matrix (const FloatDiagMatrix& d)
    : octave_base_matrix<FloatNDArray> (FloatMatrix (d)) { }

  octave_float_matrix (const FloatRowVector& v)
    : octave_base_matrix<FloatNDArray> (FloatMatrix (v)) { }

  octave_float_matrix (const FloatColumnVector& v)
    : octave_base_matrix<FloatNDArray> (FloatMatrix (v)) { }

  octave_float_matrix (const octave_float_matrix& m)
    : octave_base_matrix<FloatNDArray> (m) { }

  ~octave_float_matrix (void) { }

  octave_base_value *clone (void) const
  { return new octave_float_matrix (*this); }
  octave_base_value *empty_clone (void) const
  { return new octave_float_matrix (); }

  octave_base_value *try_narrowing_conversion (void);

  idx_vector index_vector (bool /* require_integers */ = false) const
  {
    return idx_cache ? *idx_cache : set_idx_cache (idx_vector (matrix));
  }

  builtin_type_t builtin_type (void) const { return btyp_float; }

  bool is_real_matrix (void) const { return true; }

  bool is_real_type (void) const { return true; }

  bool is_single_type (void) const { return true; }

  bool is_float_type (void) const { return true; }

  int8NDArray
  int8_array_value (void) const { return int8NDArray (matrix); }

  int16NDArray
  int16_array_value (void) const { return int16NDArray (matrix); }

  int32NDArray
  int32_array_value (void) const { return int32NDArray (matrix); }

  int64NDArray
  int64_array_value (void) const { return int64NDArray (matrix); }

  uint8NDArray
  uint8_array_value (void) const { return uint8NDArray (matrix); }

  uint16NDArray
  uint16_array_value (void) const { return uint16NDArray (matrix); }

  uint32NDArray
  uint32_array_value (void) const { return uint32NDArray (matrix); }

  uint64NDArray
  uint64_array_value (void) const { return uint64NDArray (matrix); }

  double double_value (bool = false) const;

  float float_value (bool = false) const;

  double scalar_value (bool frc_str_conv = false) const
  { return double_value (frc_str_conv); }

  float float_scalar_value (bool frc_str_conv = false) const
  { return float_value (frc_str_conv); }

  Matrix matrix_value (bool = false) const;

  FloatMatrix float_matrix_value (bool = false) const;

  Complex complex_value (bool = false) const;

  FloatComplex float_complex_value (bool = false) const;

  ComplexMatrix complex_matrix_value (bool = false) const;

  FloatComplexMatrix float_complex_matrix_value (bool = false) const;

  ComplexNDArray complex_array_value (bool = false) const;

  FloatComplexNDArray float_complex_array_value (bool = false) const;

  boolNDArray bool_array_value (bool warn = false) const;

  charNDArray char_array_value (bool = false) const;

  NDArray array_value (bool = false) const;

  FloatNDArray float_array_value (bool = false) const { return matrix; }

  SparseMatrix sparse_matrix_value (bool = false) const;

  SparseComplexMatrix sparse_complex_matrix_value (bool = false) const;

  octave_value as_double (void) const;
  octave_value as_single (void) const;

  octave_value as_int8 (void) const;
  octave_value as_int16 (void) const;
  octave_value as_int32 (void) const;
  octave_value as_int64 (void) const;

  octave_value as_uint8 (void) const;
  octave_value as_uint16 (void) const;
  octave_value as_uint32 (void) const;
  octave_value as_uint64 (void) const;

  octave_value diag (octave_idx_type k = 0) const;

  octave_value diag (octave_idx_type m, octave_idx_type n) const;

  // Use matrix_ref here to clear index cache.
  void increment (void) { matrix_ref () += 1.0; }

  void decrement (void) { matrix_ref () -= 1.0; }

  void changesign (void) { matrix_ref ().changesign (); }

  octave_value convert_to_str_internal (bool pad, bool force, char type) const;

  void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const;

  bool save_ascii (std::ostream& os);

  bool load_ascii (std::istream& is);

  bool save_binary (std::ostream& os, bool& save_as_floats);

  bool load_binary (std::istream& is, bool swap,
                    octave::mach_info::float_format fmt);

  bool save_hdf5 (octave_hdf5_id loc_id, const char *name, bool save_as_floats);

  bool load_hdf5 (octave_hdf5_id loc_id, const char *name);

  int write (octave_stream& os, int block_size,
             oct_data_conv::data_type output_type, int skip,
             octave::mach_info::float_format flt_fmt) const
  { return os.write (matrix, block_size, output_type, skip, flt_fmt); }

  // Unsafe.  This function exists to support the MEX interface.
  // You should not use it anywhere else.
  void *mex_get_data (void) const { return matrix.mex_get_data (); }

  mxArray *as_mxArray (void) const;

  octave_value map (unary_mapper_t umap) const;

private:

  DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
};

#endif