Lib/test/decimaltestdata/clamp.decTest

   1 ------------------------------------------------------------------------
   2 -- clamp.decTest -- clamped exponent tests (format-independent)       --
   3 -- Copyright (c) IBM Corporation, 2000, 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 -- This set of tests uses the same limits as the 8-byte concrete
  23 -- representation, but applies clamping without using format-specific
  24 -- conversions.
  25
  26 extended:    1
  27 precision:   16
  28 rounding:    half_even
  29 maxExponent: 384
  30 minExponent: -383
  31 clamp:       1
  32
  33 -- General testcases
  34
  35 -- Normality
  36 clam010 apply   1234567890123456   ->  1234567890123456
  37 clam011 apply   1234567890123456.0 ->  1234567890123456 Rounded
  38 clam012 apply   1234567890123456.1 ->  1234567890123456 Rounded Inexact
  39 clam013 apply  -1234567890123456   -> -1234567890123456
  40 clam014 apply  -1234567890123456.0 -> -1234567890123456 Rounded
  41 clam015 apply  -1234567890123456.1 -> -1234567890123456 Rounded Inexact
  42
  43
  44 -- Nmax and similar
  45 clam022 apply   9.999999999999999E+384  -> 9.999999999999999E+384
  46 clam024 apply   1.234567890123456E+384  -> 1.234567890123456E+384
  47 -- fold-downs (more below)
  48 clam030 apply   1.23E+384               -> 1.230000000000000E+384 Clamped
  49 clam032 apply   1E+384                  -> 1.000000000000000E+384 Clamped
  50
  51 clam051 apply   12345                   -> 12345
  52 clam053 apply   1234                    -> 1234
  53 clam055 apply   123                     -> 123
  54 clam057 apply   12                      -> 12
  55 clam059 apply   1                       -> 1
  56 clam061 apply   1.23                    -> 1.23
  57 clam063 apply   123.45                  -> 123.45
  58
  59 -- Nmin and below
  60 clam071 apply   1E-383                  -> 1E-383
  61 clam073 apply   1.000000000000000E-383  -> 1.000000000000000E-383
  62 clam075 apply   1.000000000000001E-383  -> 1.000000000000001E-383
  63
  64 clam077 apply   0.100000000000000E-383  -> 1.00000000000000E-384  Subnormal
  65 clam079 apply   0.000000000000010E-383  -> 1.0E-397               Subnormal
  66 clam081 apply   0.00000000000001E-383   -> 1E-397                 Subnormal
  67 clam083 apply   0.000000000000001E-383  -> 1E-398                 Subnormal
  68
  69 -- underflows
  70 clam090 apply   1e-398                  -> #0000000000000001  Subnormal
  71 clam091 apply   1.9e-398                -> #0000000000000002  Subnormal Underflow Inexact Rounded
  72 clam092 apply   1.1e-398                -> #0000000000000001  Subnormal Underflow Inexact Rounded
  73 clam093 apply   1.00000000001e-398      -> #0000000000000001  Subnormal Underflow Inexact Rounded
  74 clam094 apply   1.00000000000001e-398   -> #0000000000000001  Subnormal Underflow Inexact Rounded
  75 clam095 apply   1.000000000000001e-398  -> #0000000000000001  Subnormal Underflow Inexact Rounded
  76 clam096 apply   0.1e-398                -> #0000000000000000  Subnormal Underflow Inexact Rounded Clamped
  77 clam097 apply   0.00000000001e-398      -> #0000000000000000  Subnormal Underflow Inexact Rounded Clamped
  78 clam098 apply   0.00000000000001e-398   -> #0000000000000000  Subnormal Underflow Inexact Rounded Clamped
  79 clam099 apply   0.000000000000001e-398  -> #0000000000000000  Subnormal Underflow Inexact Rounded Clamped
  80
  81 -- Same again, negatives
  82 -- Nmax and similar
  83 clam122 apply  -9.999999999999999E+384  -> -9.999999999999999E+384
  84 clam124 apply  -1.234567890123456E+384  -> -1.234567890123456E+384
  85 -- fold-downs (more below)
  86 clam130 apply  -1.23E+384               -> -1.230000000000000E+384 Clamped
  87 clam132 apply  -1E+384                  -> -1.000000000000000E+384 Clamped
  88
  89 clam151 apply  -12345                   -> -12345
  90 clam153 apply  -1234                    -> -1234
  91 clam155 apply  -123                     -> -123
  92 clam157 apply  -12                      -> -12
  93 clam159 apply  -1                       -> -1
  94 clam161 apply  -1.23                    -> -1.23
  95 clam163 apply  -123.45                  -> -123.45
  96
  97 -- Nmin and below
  98 clam171 apply  -1E-383                  -> -1E-383
  99 clam173 apply  -1.000000000000000E-383  -> -1.000000000000000E-383
 100 clam175 apply  -1.000000000000001E-383  -> -1.000000000000001E-383
 101
 102 clam177 apply  -0.100000000000000E-383  -> -1.00000000000000E-384  Subnormal
 103 clam179 apply  -0.000000000000010E-383  -> -1.0E-397               Subnormal
 104 clam181 apply  -0.00000000000001E-383   -> -1E-397                 Subnormal
 105 clam183 apply  -0.000000000000001E-383  -> -1E-398                 Subnormal
 106
 107 -- underflows
 108 clam189 apply   -1e-398                 -> #8000000000000001  Subnormal
 109 clam190 apply   -1.0e-398               -> #8000000000000001  Subnormal Rounded
 110 clam191 apply   -1.9e-398               -> #8000000000000002  Subnormal Underflow Inexact Rounded
 111 clam192 apply   -1.1e-398               -> #8000000000000001  Subnormal Underflow Inexact Rounded
 112 clam193 apply   -1.00000000001e-398     -> #8000000000000001  Subnormal Underflow Inexact Rounded
 113 clam194 apply   -1.00000000000001e-398  -> #8000000000000001  Subnormal Underflow Inexact Rounded
 114 clam195 apply   -1.000000000000001e-398 -> #8000000000000001  Subnormal Underflow Inexact Rounded
 115 clam196 apply   -0.1e-398               -> #8000000000000000  Subnormal Underflow Inexact Rounded Clamped
 116 clam197 apply   -0.00000000001e-398     -> #8000000000000000  Subnormal Underflow Inexact Rounded Clamped
 117 clam198 apply   -0.00000000000001e-398  -> #8000000000000000  Subnormal Underflow Inexact Rounded Clamped
 118 clam199 apply   -0.000000000000001e-398 -> #8000000000000000  Subnormal Underflow Inexact Rounded Clamped
 119
 120 -- zeros
 121 clam401 apply   0E-500                  -> 0E-398  Clamped
 122 clam402 apply   0E-400                  -> 0E-398  Clamped
 123 clam403 apply   0E-398                  -> 0E-398
 124 clam404 apply   0.000000000000000E-383  -> 0E-398
 125 clam405 apply   0E-2                    ->  0.00
 126 clam406 apply   0                       -> 0
 127 clam407 apply   0E+3                    -> 0E+3
 128 clam408 apply   0E+369                  -> 0E+369
 129 -- clamped zeros...
 130 clam410 apply   0E+370                  -> 0E+369 Clamped
 131 clam411 apply   0E+384                  -> 0E+369 Clamped
 132 clam412 apply   0E+400                  -> 0E+369 Clamped
 133 clam413 apply   0E+500                  -> 0E+369 Clamped
 134
 135 -- negative zeros
 136 clam420 apply   -0E-500                 -> -0E-398 Clamped
 137 clam421 apply   -0E-400                 -> -0E-398 Clamped
 138 clam422 apply   -0E-398                 -> -0E-398
 139 clam423 apply   -0.000000000000000E-383 -> -0E-398
 140 clam424 apply   -0E-2                   -> -0.00
 141 clam425 apply   -0                      -> -0
 142 clam426 apply   -0E+3                   -> -0E+3
 143 clam427 apply   -0E+369                 -> -0E+369
 144 -- clamped zeros...
 145 clam431 apply   -0E+370                 -> -0E+369 Clamped
 146 clam432 apply   -0E+384                 -> -0E+369 Clamped
 147 clam433 apply   -0E+400                 -> -0E+369 Clamped
 148 clam434 apply   -0E+500                 -> -0E+369 Clamped
 149
 150 -- fold-down full sequence
 151 clam601 apply   1E+384                  -> 1.000000000000000E+384 Clamped
 152 clam603 apply   1E+383                  -> 1.00000000000000E+383 Clamped
 153 clam605 apply   1E+382                  -> 1.0000000000000E+382 Clamped
 154 clam607 apply   1E+381                  -> 1.000000000000E+381 Clamped
 155 clam609 apply   1E+380                  -> 1.00000000000E+380 Clamped
 156 clam611 apply   1E+379                  -> 1.0000000000E+379 Clamped
 157 clam613 apply   1E+378                  -> 1.000000000E+378 Clamped
 158 clam615 apply   1E+377                  -> 1.00000000E+377 Clamped
 159 clam617 apply   1E+376                  -> 1.0000000E+376 Clamped
 160 clam619 apply   1E+375                  -> 1.000000E+375 Clamped
 161 clam621 apply   1E+374                  -> 1.00000E+374 Clamped
 162 clam623 apply   1E+373                  -> 1.0000E+373 Clamped
 163 clam625 apply   1E+372                  -> 1.000E+372 Clamped
 164 clam627 apply   1E+371                  -> 1.00E+371 Clamped
 165 clam629 apply   1E+370                  -> 1.0E+370 Clamped
 166 clam631 apply   1E+369                  -> 1E+369
 167 clam633 apply   1E+368                  -> 1E+368
 168 -- same with 9s
 169 clam641 apply   9E+384                  -> 9.000000000000000E+384 Clamped
 170 clam643 apply   9E+383                  -> 9.00000000000000E+383 Clamped
 171 clam645 apply   9E+382                  -> 9.0000000000000E+382 Clamped
 172 clam647 apply   9E+381                  -> 9.000000000000E+381 Clamped
 173 clam649 apply   9E+380                  -> 9.00000000000E+380 Clamped
 174 clam651 apply   9E+379                  -> 9.0000000000E+379 Clamped
 175 clam653 apply   9E+378                  -> 9.000000000E+378 Clamped
 176 clam655 apply   9E+377                  -> 9.00000000E+377 Clamped
 177 clam657 apply   9E+376                  -> 9.0000000E+376 Clamped
 178 clam659 apply   9E+375                  -> 9.000000E+375 Clamped
 179 clam661 apply   9E+374                  -> 9.00000E+374 Clamped
 180 clam663 apply   9E+373                  -> 9.0000E+373 Clamped
 181 clam665 apply   9E+372                  -> 9.000E+372 Clamped
 182 clam667 apply   9E+371                  -> 9.00E+371 Clamped
 183 clam669 apply   9E+370                  -> 9.0E+370 Clamped
 184 clam671 apply   9E+369                  -> 9E+369
 185 clam673 apply   9E+368                  -> 9E+368
 186
 187 -- subnormals clamped to 0-Etiny
 188 precision:   16
 189 maxExponent: 384
 190 minExponent: -383
 191 clam681 apply 7E-398     -> 7E-398 Subnormal
 192 clam682 apply 0E-398     -> 0E-398
 193 clam683 apply 7E-399     -> 1E-398 Subnormal Underflow Inexact Rounded
 194 clam684 apply 4E-399     -> 0E-398 Clamped Subnormal Underflow Inexact Rounded
 195 clam685 apply 7E-400     -> 0E-398 Clamped Subnormal Underflow Inexact Rounded
 196 clam686 apply 7E-401     -> 0E-398 Clamped Subnormal Underflow Inexact Rounded
 197 clam687 apply 0E-399     -> 0E-398 Clamped
 198 clam688 apply 0E-400     -> 0E-398 Clamped
 199 clam689 apply 0E-401     -> 0E-398 Clamped
 200
 201 -- example from documentation
 202 precision:   7
 203 rounding:    half_even
 204 maxExponent: +96
 205 minExponent: -95
 206
 207 clamp:       0
 208 clam700 apply   1.23E+96                -> 1.23E+96
 209
 210 clamp:       1
 211 clam701 apply   1.23E+96                -> 1.230000E+96 Clamped