/usr/share/octave/packages/optim-1.5.2/__all_stat_opts__.m is in octave-optim 1.5.2-1.
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 | ## Copyright (C) 2009-2015 VZLU Prague
##
## This function 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.
##
## This function 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 this function; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{names} =} __all_stat_opts__ (@dots{})
## Undocumented internal function.
## @end deftypefn
## Query all options from all known optimization functions and return a
## list of possible values.
##
## Copied from Octave (was '__all_opts__') (Asma Afzal <asmaafzal5@gmail.com>).
function names = __all_stat_opts__ (varargin)
persistent saved_names = {};
## do not clear this function
mlock ();
## guard against recursive calls.
persistent recursive = false;
if (recursive)
names = {};
elseif (nargin == 0)
names = saved_names;
else
## query all options from all known functions. These will call statset,
## which will in turn call us, but we won't answer.
recursive = true;
names = saved_names;
for i = 1:nargin
try
opts = statset (varargin{i});
fn = fieldnames (opts).';
names = [names, fn];
catch
## throw the error as a warning.
warning (lasterr ());
end_try_catch
endfor
names = unique (names);
[lnames, idx] = unique (tolower (names));
if (length (lnames) < length (names))
## This is bad.
error ("__all_stat_opts__: duplicate options with inconsistent case");
else
names = names(idx);
endif
saved_names = names;
recursive = false;
endif
endfunction
## No test needed for internal helper function.
%!assert (1)
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