Mercurial > cpython-lru_cache-weakref

annotate Lib/test/decimaltestdata/ddAbs.decTest @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents b3901c5660f7
children 670caa9775f6
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1 ------------------------------------------------------------------------
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2 -- ddAbs.decTest -- decDouble absolute value, heeding sNaN --
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3 -- Copyright (c) IBM Corporation, 1981, 2008. All rights reserved. --
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4 ------------------------------------------------------------------------
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5 -- Please see the document "General Decimal Arithmetic Testcases" --
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6 -- at http://www2.hursley.ibm.com/decimal for the description of --
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7 -- these testcases. --
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8 -- --
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9 -- These testcases are experimental ('beta' versions), and they --
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10 -- may contain errors. They are offered on an as-is basis. In --
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11 -- particular, achieving the same results as the tests here is not --
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12 -- a guarantee that an implementation complies with any Standard --
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13 -- or specification. The tests are not exhaustive. --
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14 -- --
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15 -- Please send comments, suggestions, and corrections to the author: --
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16 -- Mike Cowlishaw, IBM Fellow --
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17 -- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
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18 -- mfc@uk.ibm.com --
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19 ------------------------------------------------------------------------
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20 version: 2.58
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21
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22 precision: 16
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23 maxExponent: 384
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24 minExponent: -383
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25 extended: 1
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26 clamp: 1
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27 rounding: half_even
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28
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29 ddabs001 abs '1' -> '1'
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30 ddabs002 abs '-1' -> '1'
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31 ddabs003 abs '1.00' -> '1.00'
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32 ddabs004 abs '-1.00' -> '1.00'
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33 ddabs005 abs '0' -> '0'
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34 ddabs006 abs '0.00' -> '0.00'
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35 ddabs007 abs '00.0' -> '0.0'
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36 ddabs008 abs '00.00' -> '0.00'
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37 ddabs009 abs '00' -> '0'
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38
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39 ddabs010 abs '-2' -> '2'
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40 ddabs011 abs '2' -> '2'
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41 ddabs012 abs '-2.00' -> '2.00'
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42 ddabs013 abs '2.00' -> '2.00'
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43 ddabs014 abs '-0' -> '0'
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44 ddabs015 abs '-0.00' -> '0.00'
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45 ddabs016 abs '-00.0' -> '0.0'
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46 ddabs017 abs '-00.00' -> '0.00'
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47 ddabs018 abs '-00' -> '0'
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48
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49 ddabs020 abs '-2000000' -> '2000000'
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50 ddabs021 abs '2000000' -> '2000000'
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52 ddabs030 abs '+0.1' -> '0.1'
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53 ddabs031 abs '-0.1' -> '0.1'
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54 ddabs032 abs '+0.01' -> '0.01'
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55 ddabs033 abs '-0.01' -> '0.01'
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56 ddabs034 abs '+0.001' -> '0.001'
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57 ddabs035 abs '-0.001' -> '0.001'
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58 ddabs036 abs '+0.000001' -> '0.000001'
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59 ddabs037 abs '-0.000001' -> '0.000001'
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60 ddabs038 abs '+0.000000000001' -> '1E-12'
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61 ddabs039 abs '-0.000000000001' -> '1E-12'
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62
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63 -- examples from decArith
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64 ddabs040 abs '2.1' -> '2.1'
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65 ddabs041 abs '-100' -> '100'
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66 ddabs042 abs '101.5' -> '101.5'
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67 ddabs043 abs '-101.5' -> '101.5'
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68
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69 -- more fixed, potential LHS swaps/overlays if done by subtract 0
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70 ddabs060 abs '-56267E-10' -> '0.0000056267'
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71 ddabs061 abs '-56267E-5' -> '0.56267'
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72 ddabs062 abs '-56267E-2' -> '562.67'
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73 ddabs063 abs '-56267E-1' -> '5626.7'
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74 ddabs065 abs '-56267E-0' -> '56267'
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75
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76 -- subnormals and underflow
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77
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78 -- long operand tests
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79 ddabs321 abs 1234567890123456 -> 1234567890123456
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80 ddabs322 abs 12345678000 -> 12345678000
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81 ddabs323 abs 1234567800 -> 1234567800
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82 ddabs324 abs 1234567890 -> 1234567890
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83 ddabs325 abs 1234567891 -> 1234567891
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84 ddabs326 abs 12345678901 -> 12345678901
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85 ddabs327 abs 1234567896 -> 1234567896
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86
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87 -- zeros
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88 ddabs111 abs 0 -> 0
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89 ddabs112 abs -0 -> 0
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90 ddabs113 abs 0E+6 -> 0E+6
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91 ddabs114 abs -0E+6 -> 0E+6
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92 ddabs115 abs 0.0000 -> 0.0000
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93 ddabs116 abs -0.0000 -> 0.0000
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94 ddabs117 abs 0E-141 -> 0E-141
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95 ddabs118 abs -0E-141 -> 0E-141
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96
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97 -- full coefficients, alternating bits
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98 ddabs121 abs 2682682682682682 -> 2682682682682682
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99 ddabs122 abs -2682682682682682 -> 2682682682682682
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100 ddabs123 abs 1341341341341341 -> 1341341341341341
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101 ddabs124 abs -1341341341341341 -> 1341341341341341
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102
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103 -- Nmax, Nmin, Ntiny
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104 ddabs131 abs 9.999999999999999E+384 -> 9.999999999999999E+384
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105 ddabs132 abs 1E-383 -> 1E-383
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106 ddabs133 abs 1.000000000000000E-383 -> 1.000000000000000E-383
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107 ddabs134 abs 1E-398 -> 1E-398 Subnormal
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108
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109 ddabs135 abs -1E-398 -> 1E-398 Subnormal
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110 ddabs136 abs -1.000000000000000E-383 -> 1.000000000000000E-383
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111 ddabs137 abs -1E-383 -> 1E-383
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112 ddabs138 abs -9.999999999999999E+384 -> 9.999999999999999E+384
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113
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114 -- specials
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115 ddabs520 abs 'Inf' -> 'Infinity'
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116 ddabs521 abs '-Inf' -> 'Infinity'
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117 ddabs522 abs NaN -> NaN
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118 ddabs523 abs sNaN -> NaN Invalid_operation
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119 ddabs524 abs NaN22 -> NaN22
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120 ddabs525 abs sNaN33 -> NaN33 Invalid_operation
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121 ddabs526 abs -NaN22 -> -NaN22
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122 ddabs527 abs -sNaN33 -> -NaN33 Invalid_operation
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124 -- Null tests
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125 ddabs900 abs # -> NaN Invalid_operation
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126