| Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 1 | ------------------------------------------------------------------------
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| 2 | -- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads --
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| Benjamin Peterson | f17ff4e | 2008-07-31 16:32:12 +0000 | [diff] [blame] | 3 | -- Copyright (c) IBM Corporation, 2005, 2008. All rights reserved. --
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| Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 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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| Mark Dickinson | 8a54653 | 2009-10-08 16:30:38 +0000 | [diff] [blame] | 20 | version: 2.59
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| Thomas Wouters | 1b7f891 | 2007-09-19 03:06:30 +0000 | [diff] [blame] | 21 |
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| 22 | extended: 1
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| 23 | clamp: 1
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| 24 | precision: 34
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| 25 | maxExponent: 6144
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| 26 | minExponent: -6143
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| 27 | rounding: half_even
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| 28 |
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| 29 | -- basics
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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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| 46 |
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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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| 59 |
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| 60 | -- zeros
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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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| 69 |
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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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| 75 |
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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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| 81 |
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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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| 86 |
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| 87 | -- ones
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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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| 91 |
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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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| 121 |
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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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| 144 |
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| 145 | -- special values
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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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| 156 |
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| 157 | -- Null test
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| 158 | dqlogb900 logb # -> NaN Invalid_operation
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| 159 |
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| 160 |
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