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1 ## Copyright (C) 2000 Paul Kienzle |
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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18 ## 02110-1301, USA. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} isequal (@var{x1}, @var{x2}, @dots{}, @var{xN}) |
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22 ## Return true if all parts of @var{x1}, @var{x2}, @dots{}, @var{xN} are |
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23 ## equal. |
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24 ## @end deftypefn |
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25 |
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26 ## Author: Paul Kienzle |
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27 ## Adapted-by: jwe |
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28 |
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29 function t = isequal (x, varargin) |
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30 |
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31 if (nargin < 2) |
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32 usage ("isequal (x, y, ...)"); |
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33 endif |
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34 |
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35 for arg = 1:length (varargin) |
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36 y = varargin{arg}; |
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37 if (isstruct (x)) |
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38 t = isstruct (y); |
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39 for [v, k] = x |
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40 t = (t |
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41 && struct_contains (y, k) |
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42 && isequal (getfield (x, k), getfield (y, k))); |
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43 endfor |
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44 for [v, k] = y |
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45 t = t && struct_contains (x, k); |
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46 endfor |
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47 elseif (islist (x)) |
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48 t = islist(y) && length(x) == length(y); |
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49 if (! t) |
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50 return; |
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51 endif |
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52 for i = 1:length (x) |
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53 t = isequal (x{i}, y{i}); |
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54 if (! t) |
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55 return; |
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56 endif |
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57 endfor |
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58 elseif (any (size (x) != size (y))) |
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59 t = false; |
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60 elseif (iscell (x) || islist (x)) |
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61 t = iscell (y) || islist (y); |
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62 if (! t) |
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63 return; |
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64 endif |
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65 x = x(:); |
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66 y = y(:); |
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67 for i = 1:length (x) |
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68 t = isequal (x{i}, y{i}); |
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69 if (! t) |
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70 return; |
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71 endif |
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72 endfor |
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73 else |
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74 t = all (x(:) == y(:)); |
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75 endif |
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76 if (! t) |
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77 return; |
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78 endif |
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79 endfor |
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80 |
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81 endfunction |
