Mercurial > octave-nkf
annotate scripts/strings/hex2dec.m @ 20354:227d582fa300 stable
build: Sort generated PKG_ADD contents consistently
* libinterp/mk-pkg-add: Set LC_COLLATE=C when sorting for consistent output.
author | Mike Miller <mtmiller@octave.org> |
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date | Fri, 10 Jul 2015 01:10:30 -0400 |
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1 ## Copyright (C) 1996-2015 Daniel Calvelo |
2313 | 2 ## |
3 ## This file is part of Octave. | |
4 ## | |
5 ## Octave is free software; you can redistribute it and/or modify it | |
6 ## under the terms of the GNU General Public License as published by | |
7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
8 ## your option) any later version. | |
2313 | 9 ## |
10 ## Octave is distributed in the hope that it will be useful, but | |
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 ## General Public License for more details. | |
14 ## | |
15 ## You should have received a copy of the GNU General Public License | |
7016 | 16 ## along with Octave; see the file COPYING. If not, see |
17 ## <http://www.gnu.org/licenses/>. | |
2268 | 18 |
3361 | 19 ## -*- texinfo -*- |
20 ## @deftypefn {Function File} {} hex2dec (@var{s}) | |
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21 ## Return the integer corresponding to the hexadecimal number represented by |
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22 ## the string @var{s}. |
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23 ## |
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24 ## For example: |
3426 | 25 ## |
3361 | 26 ## @example |
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27 ## @group |
3361 | 28 ## hex2dec ("12B") |
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29 ## @result{} 299 |
3361 | 30 ## hex2dec ("12b") |
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31 ## @result{} 299 |
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32 ## @end group |
3361 | 33 ## @end example |
3789 | 34 ## |
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35 ## If @var{s} is a string matrix, return a column vector with one converted |
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36 ## number per row of @var{s}; Invalid rows evaluate to NaN@. |
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37 ## |
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38 ## If @var{s} is a cell array of strings, return a column vector with one |
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39 ## converted number per cell element in @var{s}. |
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40 ## |
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41 ## @seealso{dec2hex, base2dec, bin2dec} |
3361 | 42 ## @end deftypefn |
2268 | 43 |
3791 | 44 ## Author: Daniel Calvelo <dcalvelo@yahoo.com> |
3789 | 45 ## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk> |
2314 | 46 |
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47 function d = hex2dec (s) |
2268 | 48 |
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49 if (nargin != 1) |
6046 | 50 print_usage (); |
2268 | 51 endif |
52 | |
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53 d = base2dec (s, 16); |
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54 |
2268 | 55 endfunction |
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57 |
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58 %!assert (hex2dec ("0000"), 0) |
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59 %!assert (hex2dec ("1FFFFFFFFFFFFF"), 2^53-1) |
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60 %!assert (hex2dec (["12b"; "12B"]), [299; 299]) |
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61 %!assert (hex2dec ({"A1", "1A"}), [161; 26]) |
7411 | 62 |
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63 ## Test input validation |
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64 %!error hex2dec () |
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65 %!error hex2dec (1) |
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66 %!error hex2dec ("1", 2) |
7411 | 67 |