/usr/include/octave-4.2.2/octave/bsxfun.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 | /*
Copyright (C) 2012-2017 Jordi Gutiérrez Hermoso
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/>.
*/
// Author: Jordi Gutiérrez Hermoso <jordigh@octave.org>
#if ! defined (octave_bsxfun_h)
#define octave_bsxfun_h 1
#include "octave-config.h"
#include <algorithm>
#include "Array.h"
#include "dim-vector.h"
#include "lo-error.h"
inline
bool
is_valid_bsxfun (const std::string& name, const dim_vector& dx,
const dim_vector& dy)
{
for (int i = 0; i < std::min (dx.ndims (), dy.ndims ()); i++)
{
octave_idx_type xk = dx(i);
octave_idx_type yk = dy(i);
// Check the three conditions for valid bsxfun dims
if (! ((xk == yk) || (xk == 1 && yk != 1) || (xk != 1 && yk == 1)))
return false;
}
(*current_liboctave_warning_with_id_handler)
("Octave:language-extension", "performing `%s' automatic broadcasting",
name.c_str ());
return true;
}
// since we can't change the size of the assigned-to matrix, we cannot
// apply singleton expansion to it, so the conditions to check are
// different here.
inline
bool
is_valid_inplace_bsxfun (const std::string& name, const dim_vector& dr,
const dim_vector& dx)
{
octave_idx_type drl = dr.ndims ();
octave_idx_type dxl = dx.ndims ();
if (drl < dxl)
return false;
for (int i = 0; i < drl; i++)
{
octave_idx_type rk = dr(i);
octave_idx_type xk = dx(i);
// Only two valid canditions to check; can't stretch rk
if (! ((rk == xk) || (rk != 1 && xk == 1)))
return false;
}
(*current_liboctave_warning_with_id_handler)
("Octave:language-extension", "performing `%s' automatic broadcasting",
name.c_str ());
return true;
}
#include "bsxfun-defs.cc"
#endif
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