Mercurial > octave
annotate scripts/strings/blanks.m @ 31239:dd6b37f67db2
Accept negative inputs to -2^63 for dec2bin and dec2hex (bug #63089)
dec2bin.m: Accept negative inputs lower than -flintmax down to -2^63
Return 64-bit string in certain cases for Matlab compatibility
Activate BISTs commented out earlier
dec2hex.m: Remove repeated code and call dec2bin instead
Accept negative inputs lower than -flintmax down to -2^63
Update and activate BISTs commented out earlier
author | Arun Giridhar <arungiridhar@gmail.com> |
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date | Sun, 25 Sep 2022 06:22:25 -0400 |
parents | 5d3faba0342e |
children | 597f3ee61a48 |
rev | line source |
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1 ######################################################################## |
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2 ## |
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3 ## Copyright (C) 1996-2022 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/>. |
2325 | 7 ## |
2313 | 8 ## This file is part of Octave. |
9 ## | |
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10 ## Octave is free software: you can redistribute it and/or modify it |
2313 | 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. |
2313 | 14 ## |
15 ## Octave is distributed in the hope that it will be useful, but | |
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. |
2313 | 19 ## |
20 ## You should have received a copy of the GNU General Public License | |
7016 | 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 ######################################################################## |
2268 | 25 |
3361 | 26 ## -*- texinfo -*- |
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27 ## @deftypefn {} {@var{str} =} blanks (@var{n}) |
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28 ## Return a string of @var{n} blanks. |
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29 ## |
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30 ## For example: |
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31 ## |
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32 ## @example |
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33 ## @group |
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34 ## blanks (10); |
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35 ## whos ans |
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36 ## @result{} |
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37 ## Attr Name Size Bytes Class |
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38 ## ==== ==== ==== ===== ===== |
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39 ## ans 1x10 10 char |
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40 ## @end group |
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41 ## @end example |
6138 | 42 ## @seealso{repmat} |
3361 | 43 ## @end deftypefn |
2311 | 44 |
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45 function str = blanks (n) |
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47 if (nargin < 1) |
6046 | 48 print_usage (); |
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49 elseif (! (isscalar (n) && n == fix (n) && n >= 0)) |
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50 error ("blanks: N must be a non-negative integer"); |
2268 | 51 endif |
2325 | 52 |
6387 | 53 ## If 1:n is empty, the following expression will create an empty |
54 ## character string. Otherwise, it will create a row vector. | |
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55 str(1:n) = " "; |
6138 | 56 |
2268 | 57 endfunction |
6138 | 58 |
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59 |
6138 | 60 ## There really isn't that much to test here |
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61 %!assert (blanks (0), "") |
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62 %!assert (blanks (5), " ") |
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63 %!assert (blanks (10), " ") |
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65 ## Test input validation |
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66 %!error <Invalid call> blanks () |
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67 %!error blanks (ones (2)) |
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68 %!error blanks (2.1) |
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69 %!error blanks (-2) |