AppPkg/Applications/Python/Python-2.7.2/Lib/test/decimaltestdata/dqLogB.decTest

   1 ------------------------------------------------------------------------
   2 -- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads    --
   3 -- Copyright (c) IBM Corporation, 2005, 2008.  All rights reserved.   --
   4 ------------------------------------------------------------------------
   5 -- Please see the document "General Decimal Arithmetic Testcases"     --
   6 -- at http://www2.hursley.ibm.com/decimal for the description of      --
   7 -- these testcases.                                                   --
   8 --                                                                    --
   9 -- These testcases are experimental ('beta' versions), and they       --
  10 -- may contain errors.  They are offered on an as-is basis.  In       --
  11 -- particular, achieving the same results as the tests here is not    --
  12 -- a guarantee that an implementation complies with any Standard      --
  13 -- or specification.  The tests are not exhaustive.                   --
  14 --                                                                    --
  15 -- Please send comments, suggestions, and corrections to the author:  --
  16 --   Mike Cowlishaw, IBM Fellow                                       --
  17 --   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
  18 --   mfc@uk.ibm.com                                                   --
  19 ------------------------------------------------------------------------
  20 version: 2.59
  21
  22 extended:    1
  23 clamp:       1
  24 precision:   34
  25 maxExponent: 6144
  26 minExponent: -6143
  27 rounding:    half_even
  28
  29 -- basics
  30 dqlogb000 logb  0                 -> -Infinity  Division_by_zero
  31 dqlogb001 logb  1E-6176           -> -6176
  32 dqlogb002 logb  1E-6143           -> -6143
  33 dqlogb003 logb  0.001             -> -3
  34 dqlogb004 logb  0.03              -> -2
  35 dqlogb005 logb  1                 ->  0
  36 dqlogb006 logb  2                 ->  0
  37 dqlogb007 logb  2.5               ->  0
  38 dqlogb008 logb  2.50              ->  0
  39 dqlogb009 logb  2.500             ->  0
  40 dqlogb010 logb  10                ->  1
  41 dqlogb011 logb  70                ->  1
  42 dqlogb012 logb  100               ->  2
  43 dqlogb013 logb  250               ->  2
  44 dqlogb014 logb  9E+6144           ->  6144
  45 dqlogb015 logb +Infinity          ->  Infinity
  46
  47 -- negatives appear to be treated as positives
  48 dqlogb021 logb -0                 -> -Infinity  Division_by_zero
  49 dqlogb022 logb -1E-6176           -> -6176
  50 dqlogb023 logb -9E-6143           -> -6143
  51 dqlogb024 logb -0.001             -> -3
  52 dqlogb025 logb -1                 ->  0
  53 dqlogb026 logb -2                 ->  0
  54 dqlogb027 logb -10                ->  1
  55 dqlogb028 logb -70                ->  1
  56 dqlogb029 logb -100               ->  2
  57 dqlogb030 logb -9E+6144           ->  6144
  58 dqlogb031 logb -Infinity          ->  Infinity
  59
  60 -- zeros
  61 dqlogb111 logb          0   -> -Infinity  Division_by_zero
  62 dqlogb112 logb         -0   -> -Infinity  Division_by_zero
  63 dqlogb113 logb       0E+4   -> -Infinity  Division_by_zero
  64 dqlogb114 logb      -0E+4   -> -Infinity  Division_by_zero
  65 dqlogb115 logb     0.0000   -> -Infinity  Division_by_zero
  66 dqlogb116 logb    -0.0000   -> -Infinity  Division_by_zero
  67 dqlogb117 logb      0E-141  -> -Infinity  Division_by_zero
  68 dqlogb118 logb     -0E-141  -> -Infinity  Division_by_zero
  69
  70 -- full coefficients, alternating bits
  71 dqlogb121 logb   268268268        -> 8
  72 dqlogb122 logb  -268268268        -> 8
  73 dqlogb123 logb   134134134        -> 8
  74 dqlogb124 logb  -134134134        -> 8
  75
  76 -- Nmax, Nmin, Ntiny
  77 dqlogb131 logb  9.999999999999999999999999999999999E+6144   ->  6144
  78 dqlogb132 logb  1E-6143                   -> -6143
  79 dqlogb133 logb  1.000000000000000000000000000000000E-6143   -> -6143
  80 dqlogb134 logb  1E-6176                   -> -6176
  81
  82 dqlogb135 logb  -1E-6176                  -> -6176
  83 dqlogb136 logb  -1.000000000000000000000000000000000E-6143  -> -6143
  84 dqlogb137 logb  -1E-6143                  -> -6143
  85 dqlogb1614 logb  -9.999999999999999999999999999999999E+6144  ->  6144
  86
  87 -- ones
  88 dqlogb0061 logb  1                 ->   0
  89 dqlogb0062 logb  1.0               ->   0
  90 dqlogb0063 logb  1.000000000000000 ->   0
  91
  92 -- notable cases -- exact powers of 10
  93 dqlogb1100 logb 1             -> 0
  94 dqlogb1101 logb 10            -> 1
  95 dqlogb1102 logb 100           -> 2
  96 dqlogb1103 logb 1000          -> 3
  97 dqlogb1104 logb 10000         -> 4
  98 dqlogb1105 logb 100000        -> 5
  99 dqlogb1106 logb 1000000       -> 6
 100 dqlogb1107 logb 10000000      -> 7
 101 dqlogb1108 logb 100000000     -> 8
 102 dqlogb1109 logb 1000000000    -> 9
 103 dqlogb1110 logb 10000000000   -> 10
 104 dqlogb1111 logb 100000000000  -> 11
 105 dqlogb1112 logb 1000000000000 -> 12
 106 dqlogb1113 logb 0.00000000001 -> -11
 107 dqlogb1114 logb 0.0000000001 -> -10
 108 dqlogb1115 logb 0.000000001 -> -9
 109 dqlogb1116 logb 0.00000001 -> -8
 110 dqlogb1117 logb 0.0000001 -> -7
 111 dqlogb1118 logb 0.000001 -> -6
 112 dqlogb1119 logb 0.00001 -> -5
 113 dqlogb1120 logb 0.0001 -> -4
 114 dqlogb1121 logb 0.001 -> -3
 115 dqlogb1122 logb 0.01 -> -2
 116 dqlogb1123 logb 0.1 -> -1
 117 dqlogb1124 logb 1E-99  -> -99
 118 dqlogb1125 logb 1E-100 -> -100
 119 dqlogb1127 logb 1E-299 -> -299
 120 dqlogb1126 logb 1E-6143 -> -6143
 121
 122 -- suggestions from Ilan Nehama
 123 dqlogb1400 logb 10E-3    -> -2
 124 dqlogb1401 logb 10E-2    -> -1
 125 dqlogb1402 logb 100E-2   ->  0
 126 dqlogb1403 logb 1000E-2  ->  1
 127 dqlogb1404 logb 10000E-2 ->  2
 128 dqlogb1405 logb 10E-1    ->  0
 129 dqlogb1406 logb 100E-1   ->  1
 130 dqlogb1407 logb 1000E-1  ->  2
 131 dqlogb1408 logb 10000E-1 ->  3
 132 dqlogb1409 logb 10E0     ->  1
 133 dqlogb1410 logb 100E0    ->  2
 134 dqlogb1411 logb 1000E0   ->  3
 135 dqlogb1412 logb 10000E0  ->  4
 136 dqlogb1413 logb 10E1     ->  2
 137 dqlogb1414 logb 100E1    ->  3
 138 dqlogb1415 logb 1000E1   ->  4
 139 dqlogb1416 logb 10000E1  ->  5
 140 dqlogb1417 logb 10E2     ->  3
 141 dqlogb1418 logb 100E2    ->  4
 142 dqlogb1419 logb 1000E2   ->  5
 143 dqlogb1420 logb 10000E2  ->  6
 144
 145 -- special values
 146 dqlogb820  logb   Infinity ->   Infinity
 147 dqlogb821  logb   0        ->  -Infinity Division_by_zero
 148 dqlogb822  logb   NaN      ->   NaN
 149 dqlogb823  logb   sNaN     ->   NaN     Invalid_operation
 150 -- propagating NaNs
 151 dqlogb824  logb   sNaN123  ->   NaN123  Invalid_operation
 152 dqlogb825  logb   -sNaN321 ->  -NaN321  Invalid_operation
 153 dqlogb826  logb   NaN456   ->   NaN456
 154 dqlogb827  logb   -NaN654  ->  -NaN654
 155 dqlogb828  logb   NaN1     ->   NaN1
 156
 157 -- Null test
 158 dqlogb900  logb #   -> NaN Invalid_operation
 159
 160