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ensure exp. terminal widget has focus at startup * main-window.cc (main_window): call focus_command_window only if event loop is idle by using a single shot timer * main-window.h: make focus_command_window a public slot
author Torsten Lilge <ttl-octave@mailbox.org>
date Sun, 26 May 2024 02:29:44 +0200
parents 0b8f3470d1fb
children
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2014-2024 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {@var{tf} =} istril (@var{A})
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28 ## Return true if @var{A} is a lower triangular numeric matrix.
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29 ##
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30 ## A lower triangular matrix has nonzero entries only on the main diagonal and
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31 ## below.
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32 ## @seealso{istriu, isbanded, isdiag, tril, bandwidth}
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33 ## @end deftypefn
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34
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35 function tf = istril (A)
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36
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37 if (nargin < 1)
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38 print_usage ();
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39 endif
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40
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41 tf = (isnumeric (A) || islogical (A)) && ndims (A) == 2;
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42 if (tf)
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43 [i, j] = find (A);
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44 tf = all (i >= j);
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45 endif
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46
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47 endfunction
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48
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49
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50 %!assert (! istril ("string"))
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51 %!assert (istril ([]))
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52 %!assert (! istril (zeros (2,2,2)))
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53
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54 %!assert (istril (1))
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55 %!assert (! istril ([1, 1]))
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56 %!assert (istril ([1; 1]))
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57 %!assert (istril (eye (10)))
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58 %!assert (istril (speye (100)))
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59
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60 %!assert (istril (tril (randn (10))))
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61 %!assert (! istril (randn (10)))
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62
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63 ## Test input validation
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64 %!error <Invalid call> istril ()