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annotate scripts/strings/bin2dec.m @ 15063:36cbcc37fdb8

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Refactor configure.ac to make it more understandable. Use common syntax for messages in config.h Correct typos, refer to libraries in all caps, use two spaces after period. Follow Autoconf guidelines and place general tests before specific tests. * configure.ac, m4/acinclude.m4: Use common syntax for messages in config.h Correct typos, refer to libraries in all caps, use two spaces after period. Follow Autoconf guidelines and place general tests before specific tests.
author Rik <rik@octave.org>
date Tue, 31 Jul 2012 10:28:51 -0700
parents 5d3a684236b0
children d63878346099
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rev   line source
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1 ## Copyright (C) 1996-2012 Daniel Calvelo
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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
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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} {} bin2dec (@var{s})
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21 ## Return the decimal number corresponding to the binary number represented
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22 ## by the string @var{s}. For example:
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23 ##
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24 ## @example
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25 ## @group
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26 ## bin2dec ("1110")
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27 ## @result{} 14
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28 ## @end group
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29 ## @end example
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30 ##
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31 ## Spaces are ignored during conversion and may be used to make the binary
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32 ## number more readable.
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33 ##
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34 ## @example
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35 ## @group
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36 ## bin2dec ("1000 0001")
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37 ## @result{} 129
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38 ## @end group
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39 ## @end example
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40 ##
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41 ## If @var{s} is a string matrix, return a column vector with one converted
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42 ## number per row of @var{s}; Invalid rows evaluate to NaN@.
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43 ##
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44 ## If @var{s} is a cell array of strings, return a column vector with one
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45 ## converted number per cell element in @var{s}.
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46 ## @seealso{dec2bin, base2dec, hex2dec}
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47 ## @end deftypefn
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48
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49 ## Author: Daniel Calvelo <dcalvelo@yahoo.com>
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50 ## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk>
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51
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52 function d = bin2dec (s)
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53
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54 if (nargin != 1)
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55 print_usage ();
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56 endif
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57
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58 d = base2dec (s, 2);
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59
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60 endfunction
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61
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63 %!assert (bin2dec ("0000"), 0)
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64 %!assert (bin2dec ("1110"), 14)
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65 %!assert (bin2dec ("11111111111111111111111111111111111111111111111111111"), 2^53-1)
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66 %!assert (bin2dec ({"1110", "1111"}), [14; 15])
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67 %!assert (bin2dec ("1 0 1"), 5)
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68 %!assert (bin2dec (char ("1 0 1", " 1111")), [5; 15])
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70 %%Test input validation
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71 %!error bin2dec ()
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72 %!error bin2dec (1)
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73 %!error bin2dec ("1", 2)
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