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1 ## Copyright (C) 1996, 2000, 2001, 2005, 2006, 2007 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 stored |
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22 ## in the string @var{s}. For example, |
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23 ## |
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24 ## @example |
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25 ## bin2dec ("1110") |
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26 ## @result{} 14 |
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27 ## @end example |
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28 ## |
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29 ## If @var{s} is a string matrix, returns a column vector of converted |
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30 ## numbers, one per row of @var{s}. Invalid rows evaluate to NaN. |
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31 ## @seealso{dec2hex, base2dec, dec2base, hex2dec, dec2bin} |
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32 ## @end deftypefn |
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33 |
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34 ## Author: Daniel Calvelo <dcalvelo@yahoo.com> |
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35 ## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk> |
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36 |
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37 function d = bin2dec (h) |
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38 |
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39 if (nargin == 1 && ischar (h)) |
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40 n = rows (h); |
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41 d = zeros (n, 1); |
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42 for i = 1:n |
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43 s = h(i,:); |
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44 s = s(! isspace (s)); |
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45 d(i) = base2dec (s, 2); |
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46 endfor |
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47 else |
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48 print_usage (); |
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49 endif |
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50 |
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51 endfunction |
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52 |
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53 %!assert(bin2dec ("1110") == 14); |
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54 |
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55 %!error bin2dec (); |
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56 |
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57 %!error bin2dec ("str", 1); |
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58 |
