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annotate scripts/testfun/__have_feature__.m @ 16170:2a4f83826024

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new way to test for features in Octave scripts * __have_feature__.m: New file. * test.m, geometryimages.m, sparseimages.m: Use it. Delete tests for testif and xfail. * config-features.sh: New file. * libinterp/Makefile.am (EXTRA_DIST): Include config-features.sh in the list. (oct-conf-features.h): New target. (BUILT_NODISTFILES, nodist_liboctinterp_la_SOURCES): Include oct-conf-features.h in the list.
author John W. Eaton <jwe@octave.org>
date Sat, 02 Mar 2013 07:41:50 -0500
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children 12005245b645
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16170
2a4f83826024 new way to test for features in Octave scripts
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1 ## Copyright (C) 2013 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
2a4f83826024 new way to test for features in Octave scripts
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} __have_feature__ (feature)
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21 ## Undocumented internal function.
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22 ## @end deftypefn
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23
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24 function retval = __have_feature__ (feature)
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25 features = octave_config_info ("features");
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26 if (iscellstr (feature))
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27 retval = (all (isfield (features, feature))
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28 && cellfun (@(x) features.(x), feature));
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29 elseif (ischar (feature))
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30 retval = isfield (features, feature) && features.(feature);
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31 else
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32 retval = false;
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33 endif
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34 endfunction