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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 the |
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7 # Free Software Foundation; either version 2, or (at your option) any |
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8 # later version. |
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9 # |
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10 # Octave is distributed in the hope that it will be useful, but WITHOUT |
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11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 # 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 02111-1307, USA. |
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18 |
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19 function h = dec2hex (d) |
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20 |
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21 # usage: dec2hex (d) |
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22 # |
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23 # Returns the hex number corresponding to the decimal number d. For |
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24 # example, dec2hex (2748) returns "abc". |
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25 |
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26 # Original version by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>. |
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27 |
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28 if (nargin != 1) |
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29 usage ("dec2hex (d)"); |
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30 endif |
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31 |
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32 [nr, nc] = size (d); |
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33 |
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34 len = nr * nc; |
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35 |
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36 d = reshape (d, 1, len); |
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37 |
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38 eleo = empty_list_elements_ok; |
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39 unwind_protect |
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40 empty_list_elements_ok = 1; |
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41 h = ""; |
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42 for i = 1:len |
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43 tmp = d (i); |
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44 if (tmp == round (tmp)) |
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45 h = [h, sprintf ("%x", tmp)]; |
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46 else |
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47 error ("dec2hex: invalid conversion"); |
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48 endif |
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49 endfor |
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50 unwind_protect_cleanup |
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51 empty_list_elements_ok = eleo; |
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52 end_unwind_protect |
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53 |
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54 endfunction |
