/usr/share/octave/packages/optim-1.4.1/private/__collect_constraints__.m is in octave-optim 1.4.1-2.
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 | ## Copyright (C) 2010-2013 Olaf Till <i7tiol@t-online.de>
##
## This program 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 program 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 program; If not, see <http://www.gnu.org/licenses/>.
function [mc, vc, f_gencstr, df_gencstr, user_df] = ...
__collect_constraints__ (cstr, do_cstep, context)
mc = vc = f_gencstr = df_gencstr = [];
user_df = false;
if (isempty (cstr)) return; endif
for id = 1 : length (cstr)
if (ischar (cstr{id}))
cstr{id} = str2func (cstr{id});
endif
endfor
if (isnumeric (tp = cstr{1}) || isstruct (tp))
mc = tp;
vc = cstr{2};
if ((tp = length (cstr)) > 2)
f_genstr = cstr{3};
if (tp > 3)
df_gencstr = cstr{4};
user_df = true;
endif
endif
else
lid = 0; # no linear constraints
f_gencstr = cstr{1};
if ((len = length (cstr)) > 1)
if (isnumeric (c = cstr{2}) || isstruct (c))
lid = 2;
else
df_gencstr = c;
user_df = true;
if (len > 2)
lid = 3;
endif
endif
endif
if (lid)
mc = cstr{lid};
vc = cstr{lid + 1};
endif
endif
if (! isempty (f_gencstr))
if (ischar (f_gencstr))
f_gencstr = str2func (f_gencstr);
endif
f_gencstr = @ (varargin) ...
tf_gencstr (f_gencstr, varargin{:});
if (user_df)
if (do_cstep)
error ("both complex step derivative chosen and user Jacobian function specified for %s", context);
endif
if (ischar (df_gencstr))
df_gencstr = str2func (df_gencstr);
endif
df_gencstr = @ (p, func, idx, hook) ...
df_gencstr (p, idx, hook);
else
if (do_cstep)
df_gencstr = @ (p, func, idx, hook) jacobs (p, func, hook);
else
df_gencstr = @ (p, func, idx, hook) __dfdp__ (p, func, hook);
endif
endif
endif
endfunction
function ret = tf_gencstr (f, varargin) # varargin: p[, idx[, info]]
## necessary since user function f_gencstr might return [] or a row
## vector
if (isempty (ret = f (varargin{:})))
ret = zeros (0, 1);
elseif (columns (ret) > 1)
ret = ret(:);
endif
endfunction
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