2303
|
1 ### Copyright (C) 1996 Kurt Hornik |
|
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 |
|
7 ### the Free Software Foundation; either version 2, or (at your option) |
|
8 ### any later version. |
|
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 |
|
16 ### along with Octave; see the file COPYING. If not, write to the Free |
|
17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
|
18 ### 02111-1307, USA. |
2268
|
19 |
|
20 function h = dec2hex (d) |
|
21 |
2303
|
22 ## usage: dec2hex (d) |
|
23 ## |
|
24 ## Returns the hex number corresponding to the decimal number d. For |
|
25 ## example, dec2hex (2748) returns "abc". |
2268
|
26 |
2303
|
27 ## Original version by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>. |
2268
|
28 |
|
29 if (nargin != 1) |
|
30 usage ("dec2hex (d)"); |
|
31 endif |
|
32 |
|
33 [nr, nc] = size (d); |
|
34 |
|
35 len = nr * nc; |
|
36 |
|
37 d = reshape (d, 1, len); |
|
38 |
|
39 eleo = empty_list_elements_ok; |
|
40 unwind_protect |
|
41 empty_list_elements_ok = 1; |
|
42 h = ""; |
|
43 for i = 1:len |
|
44 tmp = d (i); |
|
45 if (tmp == round (tmp)) |
|
46 h = [h, sprintf ("%x", tmp)]; |
|
47 else |
|
48 error ("dec2hex: invalid conversion"); |
|
49 endif |
|
50 endfor |
|
51 unwind_protect_cleanup |
|
52 empty_list_elements_ok = eleo; |
|
53 end_unwind_protect |
|
54 |
|
55 endfunction |