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[project @ 1999-11-19 21:19:37 by jwe]
author jwe
date Fri, 19 Nov 1999 21:19:44 +0000
parents c9f70d39255f
children f8dde1807dee
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1 ## Copyright (C) 1996 Kurt Hornik
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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 2, or (at your option)
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8 ## 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, write to the Free
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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18 ## 02111-1307, USA.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} hex2dec (@var{s})
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22 ## Return the decimal number corresponding to the hexadecimal number stored
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23 ## in the string @var{s}. For example,
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24 ##
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25 ## @example
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26 ## hex2dec ("12B")
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27 ## @result{} 299
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28 ## hex2dec ("12b")
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29 ## @result{} 299
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30 ## @end example
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31 ## @end deftypefn
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32
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33 ## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>
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34 ## Adapted-By: jwe
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35
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36 function d = hex2dec (h)
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37
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38 if (nargin != 1)
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39 usage ("hex2dec (x)");
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40 endif
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41
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42 if (isstr (h))
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43 nr = rows (h);
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44 d = zeros (nr, 1);
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45 for i = 1:nr
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46 s = h (i, :);
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47 if (isxdigit (s))
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48 tmp = sscanf (s, "%x");
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49 if (isempty (tmp))
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50 error ("hex2dec: invalid conversion");
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51 else
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52 d (i) = tmp;
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53 endif
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54 else
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55 error ("hex2dec: argument must be a string of hexadecimal digits");
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56 endif
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57 endfor
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58 else
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59 error ("hex2dec: expecting a string argument");
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60 endif
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61
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62 endfunction