1 ------------------------------------------------------------------------
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2 -- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads --
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3 -- Copyright (c) IBM Corporation, 2005, 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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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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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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30 dqlogb000 logb 0 -> -Infinity Division_by_zero
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31 dqlogb001 logb 1E-6176 -> -6176
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32 dqlogb002 logb 1E-6143 -> -6143
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33 dqlogb003 logb 0.001 -> -3
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34 dqlogb004 logb 0.03 -> -2
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35 dqlogb005 logb 1 -> 0
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36 dqlogb006 logb 2 -> 0
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37 dqlogb007 logb 2.5 -> 0
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38 dqlogb008 logb 2.50 -> 0
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39 dqlogb009 logb 2.500 -> 0
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40 dqlogb010 logb 10 -> 1
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41 dqlogb011 logb 70 -> 1
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42 dqlogb012 logb 100 -> 2
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43 dqlogb013 logb 250 -> 2
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44 dqlogb014 logb 9E+6144 -> 6144
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45 dqlogb015 logb +Infinity -> Infinity
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47 -- negatives appear to be treated as positives
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48 dqlogb021 logb -0 -> -Infinity Division_by_zero
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49 dqlogb022 logb -1E-6176 -> -6176
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50 dqlogb023 logb -9E-6143 -> -6143
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51 dqlogb024 logb -0.001 -> -3
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52 dqlogb025 logb -1 -> 0
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53 dqlogb026 logb -2 -> 0
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54 dqlogb027 logb -10 -> 1
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55 dqlogb028 logb -70 -> 1
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56 dqlogb029 logb -100 -> 2
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57 dqlogb030 logb -9E+6144 -> 6144
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58 dqlogb031 logb -Infinity -> Infinity
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61 dqlogb111 logb 0 -> -Infinity Division_by_zero
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62 dqlogb112 logb -0 -> -Infinity Division_by_zero
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63 dqlogb113 logb 0E+4 -> -Infinity Division_by_zero
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64 dqlogb114 logb -0E+4 -> -Infinity Division_by_zero
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65 dqlogb115 logb 0.0000 -> -Infinity Division_by_zero
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66 dqlogb116 logb -0.0000 -> -Infinity Division_by_zero
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67 dqlogb117 logb 0E-141 -> -Infinity Division_by_zero
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68 dqlogb118 logb -0E-141 -> -Infinity Division_by_zero
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70 -- full coefficients, alternating bits
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71 dqlogb121 logb 268268268 -> 8
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72 dqlogb122 logb -268268268 -> 8
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73 dqlogb123 logb 134134134 -> 8
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74 dqlogb124 logb -134134134 -> 8
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76 -- Nmax, Nmin, Ntiny
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77 dqlogb131 logb 9.999999999999999999999999999999999E+6144 -> 6144
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78 dqlogb132 logb 1E-6143 -> -6143
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79 dqlogb133 logb 1.000000000000000000000000000000000E-6143 -> -6143
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80 dqlogb134 logb 1E-6176 -> -6176
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82 dqlogb135 logb -1E-6176 -> -6176
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83 dqlogb136 logb -1.000000000000000000000000000000000E-6143 -> -6143
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84 dqlogb137 logb -1E-6143 -> -6143
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85 dqlogb1614 logb -9.999999999999999999999999999999999E+6144 -> 6144
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88 dqlogb0061 logb 1 -> 0
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89 dqlogb0062 logb 1.0 -> 0
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90 dqlogb0063 logb 1.000000000000000 -> 0
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92 -- notable cases -- exact powers of 10
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93 dqlogb1100 logb 1 -> 0
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94 dqlogb1101 logb 10 -> 1
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95 dqlogb1102 logb 100 -> 2
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96 dqlogb1103 logb 1000 -> 3
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97 dqlogb1104 logb 10000 -> 4
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98 dqlogb1105 logb 100000 -> 5
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99 dqlogb1106 logb 1000000 -> 6
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100 dqlogb1107 logb 10000000 -> 7
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101 dqlogb1108 logb 100000000 -> 8
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102 dqlogb1109 logb 1000000000 -> 9
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103 dqlogb1110 logb 10000000000 -> 10
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104 dqlogb1111 logb 100000000000 -> 11
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105 dqlogb1112 logb 1000000000000 -> 12
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106 dqlogb1113 logb 0.00000000001 -> -11
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107 dqlogb1114 logb 0.0000000001 -> -10
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108 dqlogb1115 logb 0.000000001 -> -9
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109 dqlogb1116 logb 0.00000001 -> -8
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110 dqlogb1117 logb 0.0000001 -> -7
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111 dqlogb1118 logb 0.000001 -> -6
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112 dqlogb1119 logb 0.00001 -> -5
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113 dqlogb1120 logb 0.0001 -> -4
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114 dqlogb1121 logb 0.001 -> -3
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115 dqlogb1122 logb 0.01 -> -2
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116 dqlogb1123 logb 0.1 -> -1
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117 dqlogb1124 logb 1E-99 -> -99
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118 dqlogb1125 logb 1E-100 -> -100
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119 dqlogb1127 logb 1E-299 -> -299
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120 dqlogb1126 logb 1E-6143 -> -6143
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122 -- suggestions from Ilan Nehama
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123 dqlogb1400 logb 10E-3 -> -2
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124 dqlogb1401 logb 10E-2 -> -1
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125 dqlogb1402 logb 100E-2 -> 0
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126 dqlogb1403 logb 1000E-2 -> 1
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127 dqlogb1404 logb 10000E-2 -> 2
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128 dqlogb1405 logb 10E-1 -> 0
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129 dqlogb1406 logb 100E-1 -> 1
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130 dqlogb1407 logb 1000E-1 -> 2
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131 dqlogb1408 logb 10000E-1 -> 3
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132 dqlogb1409 logb 10E0 -> 1
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133 dqlogb1410 logb 100E0 -> 2
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134 dqlogb1411 logb 1000E0 -> 3
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135 dqlogb1412 logb 10000E0 -> 4
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136 dqlogb1413 logb 10E1 -> 2
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137 dqlogb1414 logb 100E1 -> 3
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138 dqlogb1415 logb 1000E1 -> 4
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139 dqlogb1416 logb 10000E1 -> 5
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140 dqlogb1417 logb 10E2 -> 3
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141 dqlogb1418 logb 100E2 -> 4
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142 dqlogb1419 logb 1000E2 -> 5
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143 dqlogb1420 logb 10000E2 -> 6
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146 dqlogb820 logb Infinity -> Infinity
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147 dqlogb821 logb 0 -> -Infinity Division_by_zero
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148 dqlogb822 logb NaN -> NaN
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149 dqlogb823 logb sNaN -> NaN Invalid_operation
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150 -- propagating NaNs
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151 dqlogb824 logb sNaN123 -> NaN123 Invalid_operation
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152 dqlogb825 logb -sNaN321 -> -NaN321 Invalid_operation
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153 dqlogb826 logb NaN456 -> NaN456
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154 dqlogb827 logb -NaN654 -> -NaN654
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155 dqlogb828 logb NaN1 -> NaN1
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158 dqlogb900 logb # -> NaN Invalid_operation
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