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annotate scripts/general/isequal.m @ 23220:092078913d54

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Wed, 22 Feb 2017 12:58:07 -0500
parents ef4d915df748 3ac9f9ecfae5
children 606f3866cdb7
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3ac9f9ecfae5 maint: Update copyright dates.
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1 ## Copyright (C) 2005-2017 William Poetra Yoga Hadisoeseno
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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
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8 ## (at 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
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13 ## GNU 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 {} {} isequal (@var{x1}, @var{x2}, @dots{})
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21 ## Return true if all of @var{x1}, @var{x2}, @dots{} are equal.
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22 ## @seealso{isequaln}
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23 ## @end deftypefn
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24
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25 function retval = isequal (x1, varargin)
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26
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27 if (nargin < 2)
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28 print_usage ();
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29 endif
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30
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31 retval = __isequal__ (false, x1, varargin{:});
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32
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33 endfunction
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34
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36 ## test empty input
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37 %!assert (isequal ([], []), true)
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38 %!assert (isequal ([], [], 1), false)
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39 %!assert (isequal ([], 1, []), false)
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40 %!assert (isequal (1, [], []), false)
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41 %!assert (isequal (1, [], []), false)
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42
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43 ## test size and shape
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44 %!assert (isequal ([1,2,3,4], [1,2,3,4]), true)
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45 %!assert (isequal ([1;2;3;4], [1;2;3;4]), true)
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46 %!assert (isequal ([1,2,3,4], [1;2;3;4]), false)
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47 %!assert (isequal ([1,2,3,4], [1,2;3,4]), false)
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48 %!assert (isequal ([1,2,3,4], [1,3;2,4]), false)
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49
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50 %!test
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51 %! A = 1:8;
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52 %! B = reshape (A, 2, 2, 2);
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53 %! assert (isequal (A, B), false);
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54 %!test
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55 %! A = reshape (1:8, 2, 2, 2);
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56 %! B = A;
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57 %! assert (isequal (A, B), true);
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58 %!test
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59 %! A = reshape (1:8, 2, 4);
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60 %! B = reshape (A, 2, 2, 2);
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61 %! assert (isequal (A, B), false);
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62
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63 ## test all numeric built-in primitives
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64 %!assert (isequal (false, logical (0), char (0),
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65 %! int8 (0), int16 (0), int32 (0), int64 (0),
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66 %! uint8 (0), uint16 (0), uint32 (0), uint64 (0),
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67 %! double (0), single (0),
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68 %! double (complex (0,0)), single (complex (0,0))),
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69 %! true)
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70 %!assert (isequal (true, logical (1), char (1),
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71 %! int8 (1), int16 (1), int32 (1), int64 (1),
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72 %! uint8 (1), uint16 (1), uint32 (1), uint64 (1),
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73 %! double (1), single (1),
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74 %! double (complex (1,0)), single (complex (1,0))),
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75 %! true)
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77 ## test characters and strings
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78 %!assert (isequal ('a', "a"), true)
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79 %!assert (isequal ("abab", ["a", "b", "a", "b"]), true)
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80 %!assert (isequal (["a","b","c","d"], ["a","b","c","d"]), true)
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81 %!assert (isequal (["test ";"strings"], ["test ";"strings"],
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82 %! ["test ";"strings"]), true)
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83 %!assert (isequal (["a","b","c","d"], ["a";"b";"c";"d"]), false)
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85 ## test function_handle
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86 %!test
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87 %! fcn = @(x) x.^2;
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88 %! assert (isequal (fcn, fcn), true);
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89 %! assert (isequal (fcn, @(x) x.^2), false);
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90 %! assert (isequal (@(x) x.^2, fcn), false);
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91
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92 ## test structures
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93 %!assert (isequal (struct ([]),struct ([])), true)
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94 %!assert (isequal (struct ("a",1), struct ("a",1)), true)
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95 %!assert (isequal (struct ("a",1), struct ("a",2)), false)
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96 %!assert (isequal (struct ("a",1), struct ("b",1)), false)
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97 %!assert (isequal (struct ("a",1,"b",2), struct ("a",1,"b",2)), true)
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98 %!assert (isequal (struct ("a",1,"b",2), struct ("b",2,"a",1)), true)
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99 %!assert (isequal (struct ("a",1,"b",2), struct ("a",1,"b",2),
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100 %! struct ("a",1,"b",2)), true)
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101 %!assert (isequal (struct ("a","abc","b",2), struct ("a","abc","b",2)), true)
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102
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103 ## recursive structure
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104 %!test
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105 %! x.a = "a1";
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106 %! x.b.a = "ba1";
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107 %! x.b.b = "bb1";
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108 %! assert (isequal (x, x, x), true);
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109 %! y = x;
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110 %! y.b.b = "bb2";
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111 %! assert (isequal (x, y), false);
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112 %! y = x;
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113 %! y.b = rmfield (y.b, "b");
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114 %! y.b.b.a = "bba1";
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115 %! assert (isequal (x, y), false);
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116
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117 ## test cells
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118 %!assert (isequal (cell (1,1), cell (1,1)), true)
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119 %!assert (isequal (cell (1,1), cell (1,2)), false)
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120 %!assert (isequal ({"a",1}, {"a",1}), true)
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121 %!assert (isequal ({"a",1}, {"a",2}), false)
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122 %!assert (isequal ({"a",1}, {"b",1}), false)
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123 %!assert (isequal ({"a",1,"b",2}, {"a",1,"b",2}), true)
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124 %!assert (isequal ({"a",1,"b",2}, {"b",2,"a",1}), false)
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125 %!assert (isequal ({"a",1,"b",2}, {"a",1,"b",2}, {"a",1,"b",2}), true)
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126 %!assert (isequal ({"a","abc","b",2}, {"a","abc","b",2}), true)
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127 %!assert (isequal ({"a","b","c","d"}, {"a","b","c","d"}), true)
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128 %!assert (isequal ({"a","b","c","d"}, {"a";"b";"c";"d"}), false)
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129 %!assert (isequal (["a","b","c","d"], {"a","b","c","d"}), false)
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130
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131 ## recursive cell
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132 %!test
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133 %! x = cell (1,3);
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134 %! x{1} = {[1], [1 2]};
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135 %! x{2} = true;
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136 %! x{3} = {{"hello"}, {"world"}};
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137 %! assert (isequal (x, x));
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138 %! y = x;
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139 %! y{3}{1}{1} = "goodbye";
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140 %! assert (isequal (x, y), false);
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Rik <octave@nomad.inbox5.com>
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141
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142 ## test for sparse matrices
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143 %!assert (isequal (sparse ([]), []), true)
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144 %!assert (isequal ([], sparse ([])), true)
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145 %!assert (isequal (sparse (0,1), sparse (0,1)), true)
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146 %!assert (isequal (sparse (0,1), zeros (0,1)), true)
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147 %!assert (isequal (sparse (2,2), sparse (2,2)), true)
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148 %!assert (isequal (zeros (2,2), sparse (2,2)), true)
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149 %!assert (isequal (speye (1), eye (1)), true)
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150 %!assert (isequal (eye (300), speye (300)), true)
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151 %!assert (isequal (sparse (0,1), sparse (1,0)), false)
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152
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153 ## test NaN
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154 %!assert (isequal (NaN, NaN), false)
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155 %!assert (isequal (NaN, Inf), false)
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156 %!assert (isequal (NaN, 1.0), false)
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157 %!assert (isequal ([1,2,NaN,4], [1,2,NaN,4]), false)
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John W. Eaton <jwe@octave.org>
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158 %!assert (isequal (struct ("a",NaN,"b",2), struct ("a",NaN,"b",2),
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159 %! struct ("a",NaN,"b",2)), false)
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160
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161 ## test input validation
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162 %!error isequal ()
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163 %!error isequal (1)
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164 %!error isequal ([1,1])