Mercurial > octave
annotate scripts/strings/hex2dec.m @ 27919:1891570abac8
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2020.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 06 Jan 2020 22:29:51 -0500 |
parents | b442ec6dda5c |
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update Octave Project Developers copyright for the new year
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1 ## Copyright (C) 1996-2020 The Octave Project Developers |
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2 ## |
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3 ## See the file COPYRIGHT.md in the top-level directory of this distribution |
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4 ## or <https://octave.org/COPYRIGHT.html/>. |
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5 ## |
2313 | 6 ## |
7 ## This file is part of Octave. | |
8 ## | |
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9 ## Octave is free software: you can redistribute it and/or modify it |
2313 | 10 ## under the terms of the GNU General Public License as published by |
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11 ## the Free Software Foundation, either version 3 of the License, or |
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12 ## (at your option) any later version. |
2313 | 13 ## |
14 ## Octave is distributed in the hope that it will be useful, but | |
15 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
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16 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 ## GNU General Public License for more details. |
2313 | 18 ## |
19 ## You should have received a copy of the GNU General Public License | |
7016 | 20 ## along with Octave; see the file COPYING. If not, see |
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21 ## <https://www.gnu.org/licenses/>. |
2268 | 22 |
3361 | 23 ## -*- texinfo -*- |
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24 ## @deftypefn {} {} hex2dec (@var{s}) |
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25 ## Return the integer corresponding to the hexadecimal number represented by |
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26 ## the string @var{s}. |
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27 ## |
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28 ## For example: |
3426 | 29 ## |
3361 | 30 ## @example |
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31 ## @group |
3361 | 32 ## hex2dec ("12B") |
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33 ## @result{} 299 |
3361 | 34 ## hex2dec ("12b") |
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35 ## @result{} 299 |
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36 ## @end group |
3361 | 37 ## @end example |
3789 | 38 ## |
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39 ## If @var{s} is a string matrix, return a column vector with one converted |
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40 ## number per row of @var{s}; Invalid rows evaluate to NaN@. |
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41 ## |
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42 ## If @var{s} is a cell array of strings, return a column vector with one |
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43 ## converted number per cell element in @var{s}. |
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44 ## |
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45 ## @seealso{dec2hex, base2dec, bin2dec} |
3361 | 46 ## @end deftypefn |
2268 | 47 |
3791 | 48 ## Author: Daniel Calvelo <dcalvelo@yahoo.com> |
3789 | 49 ## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk> |
2314 | 50 |
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51 function d = hex2dec (s) |
2268 | 52 |
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53 if (nargin != 1) |
6046 | 54 print_usage (); |
2268 | 55 endif |
56 | |
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57 d = base2dec (s, 16); |
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58 |
2268 | 59 endfunction |
7411 | 60 |
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61 |
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62 %!assert (hex2dec ("0000"), 0) |
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63 %!assert (hex2dec ("1FFFFFFFFFFFFF"), 2^53-1) |
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64 %!assert (hex2dec (["12b"; "12B"]), [299; 299]) |
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65 %!assert (hex2dec ({"A1", "1A"}), [161; 26]) |
7411 | 66 |
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67 ## Test input validation |
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68 %!error hex2dec () |
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69 %!error hex2dec (1) |
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70 %!error hex2dec ("1", 2) |