/usr/include/octave-3.8.1/octave/Range.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.
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Copyright (C) 1993-2013 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/>.
*/
#if !defined (octave_Range_h)
#define octave_Range_h 1
#include <iosfwd>
#include "dMatrix.h"
#include "oct-sort.h"
class
OCTAVE_API
Range
{
public:
Range (void)
: rng_base (0), rng_limit (0), rng_inc (0), rng_nelem (0), cache (1, 0) { }
Range (const Range& r)
: rng_base (r.rng_base), rng_limit (r.rng_limit), rng_inc (r.rng_inc),
rng_nelem (r.rng_nelem), cache (r.cache) { }
Range (double b, double l)
: rng_base (b), rng_limit (l), rng_inc (1),
rng_nelem (nelem_internal ()), cache () { }
Range (double b, double l, double i)
: rng_base (b), rng_limit (l), rng_inc (i),
rng_nelem (nelem_internal ()), cache () { }
// For operators' usage (to preserve element count).
Range (double b, double i, octave_idx_type n)
: rng_base (b), rng_limit (b + (n-1) * i), rng_inc (i),
rng_nelem (n), cache ()
{
if (! xfinite (b) || ! xfinite (i))
rng_nelem = -2;
}
double base (void) const { return rng_base; }
double limit (void) const { return rng_limit; }
double inc (void) const { return rng_inc; }
octave_idx_type nelem (void) const { return rng_nelem; }
bool all_elements_are_ints (void) const;
Matrix matrix_value (void) const;
double min (void) const;
double max (void) const;
void sort_internal (bool ascending = true);
void sort_internal (Array<octave_idx_type>& sidx, bool ascending = true);
Matrix diag (octave_idx_type k = 0) const;
Range sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const;
Range sort (Array<octave_idx_type>& sidx, octave_idx_type dim = 0,
sortmode mode = ASCENDING) const;
sortmode is_sorted (sortmode mode = ASCENDING) const;
// Support for single-index subscripting, without generating matrix cache.
double checkelem (octave_idx_type i) const;
double elem (octave_idx_type i) const;
Array<double> index (const idx_vector& i) const;
void set_base (double b)
{
if (rng_base != b)
{
rng_base = b;
clear_cache ();
}
}
void set_limit (double l)
{
if (rng_limit != l)
{
rng_limit = l;
clear_cache ();
}
}
void set_inc (double i)
{
if (rng_inc != i)
{
rng_inc = i;
clear_cache ();
}
}
friend OCTAVE_API std::ostream& operator << (std::ostream& os,
const Range& r);
friend OCTAVE_API std::istream& operator >> (std::istream& is, Range& r);
friend OCTAVE_API Range operator - (const Range& r);
friend OCTAVE_API Range operator + (double x, const Range& r);
friend OCTAVE_API Range operator + (const Range& r, double x);
friend OCTAVE_API Range operator - (double x, const Range& r);
friend OCTAVE_API Range operator - (const Range& r, double x);
friend OCTAVE_API Range operator * (double x, const Range& r);
friend OCTAVE_API Range operator * (const Range& r, double x);
void print_range (void);
private:
double rng_base;
double rng_limit;
double rng_inc;
octave_idx_type rng_nelem;
mutable Matrix cache;
octave_idx_type nelem_internal (void) const;
void clear_cache (void) const { cache.resize (0, 0); }
};
extern OCTAVE_API Range operator - (const Range& r);
extern OCTAVE_API Range operator + (double x, const Range& r);
extern OCTAVE_API Range operator + (const Range& r, double x);
extern OCTAVE_API Range operator - (double x, const Range& r);
extern OCTAVE_API Range operator - (const Range& r, double x);
extern OCTAVE_API Range operator * (double x, const Range& r);
extern OCTAVE_API Range operator * (const Range& r, double x);
#endif
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