/usr/share/octave/packages/interval-3.1.0/__check_crlibm__.m is in octave-interval 3.1.0-5.
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 | ## Copyright 2016 Oliver Heimlich
##
## 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/>.
## -*- texinfo -*-
## @documentencoding UTF-8
## @defun __check_crlibm__ ()
## Check whether crlibm is available and working.
## @end defun
## Author: Oliver Heimlich
## Keywords: interval
## Created: 2016-12-06
function result = __check_crlibm__ ()
if (exist ("crlibm_function") != 3)
## oct file not in the path
result = false;
endif
persistent use_crlibm = verify_crlibm ();
result = use_crlibm;
endfunction
function works = verify_crlibm ()
arithmetic_test_suite = fullfile (...
fileparts (file_in_loadpath ("__check_crlibm__.m")), ...
"test", ...
"crlibm.tst");
if (exist (arithmetic_test_suite) == 0)
## test suite missing: assume that a package maintainer has removed it to
## save some space after having verified that the test suite passes.
works = true;
return
endif
works = test (arithmetic_test_suite, "quiet");
if (!works)
warning ("interval:crlibm", ...
"crlibm is not working properly, using MPFR as a fallback");
endif
endfunction
%!assert (__check_crlibm__ ());
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