| Georg Brandl | faa9ad2 | 2011-03-05 15:06:13 +0100 | [diff] [blame] | 1 | ------------------------------------------------------------------------ |
| 2 | -- ddMinus.decTest -- decDouble 0-x -- |
| 3 | -- Copyright (c) IBM Corporation, 1981, 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 | -- All operands and results are decDoubles. |
| 23 | precision: 16 |
| 24 | maxExponent: 384 |
| 25 | minExponent: -383 |
| 26 | extended: 1 |
| 27 | clamp: 1 |
| 28 | rounding: half_even |
| 29 | |
| 30 | -- Sanity check |
| 31 | ddmns001 minus +7.50 -> -7.50 |
| 32 | |
| 33 | -- Infinities |
| 34 | ddmns011 minus Infinity -> -Infinity |
| 35 | ddmns012 minus -Infinity -> Infinity |
| 36 | |
| 37 | -- NaNs, 0 payload |
| 38 | ddmns021 minus NaN -> NaN |
| 39 | ddmns022 minus -NaN -> -NaN |
| 40 | ddmns023 minus sNaN -> NaN Invalid_operation |
| 41 | ddmns024 minus -sNaN -> -NaN Invalid_operation |
| 42 | |
| 43 | -- NaNs, non-0 payload |
| 44 | ddmns031 minus NaN13 -> NaN13 |
| 45 | ddmns032 minus -NaN13 -> -NaN13 |
| 46 | ddmns033 minus sNaN13 -> NaN13 Invalid_operation |
| 47 | ddmns034 minus -sNaN13 -> -NaN13 Invalid_operation |
| 48 | ddmns035 minus NaN70 -> NaN70 |
| 49 | ddmns036 minus -NaN70 -> -NaN70 |
| 50 | ddmns037 minus sNaN101 -> NaN101 Invalid_operation |
| 51 | ddmns038 minus -sNaN101 -> -NaN101 Invalid_operation |
| 52 | |
| 53 | -- finites |
| 54 | ddmns101 minus 7 -> -7 |
| 55 | ddmns102 minus -7 -> 7 |
| 56 | ddmns103 minus 75 -> -75 |
| 57 | ddmns104 minus -75 -> 75 |
| 58 | ddmns105 minus 7.50 -> -7.50 |
| 59 | ddmns106 minus -7.50 -> 7.50 |
| 60 | ddmns107 minus 7.500 -> -7.500 |
| 61 | ddmns108 minus -7.500 -> 7.500 |
| 62 | |
| 63 | -- zeros |
| 64 | ddmns111 minus 0 -> 0 |
| 65 | ddmns112 minus -0 -> 0 |
| 66 | ddmns113 minus 0E+4 -> 0E+4 |
| 67 | ddmns114 minus -0E+4 -> 0E+4 |
| 68 | ddmns115 minus 0.0000 -> 0.0000 |
| 69 | ddmns116 minus -0.0000 -> 0.0000 |
| 70 | ddmns117 minus 0E-141 -> 0E-141 |
| 71 | ddmns118 minus -0E-141 -> 0E-141 |
| 72 | |
| 73 | -- full coefficients, alternating bits |
| 74 | ddmns121 minus 2682682682682682 -> -2682682682682682 |
| 75 | ddmns122 minus -2682682682682682 -> 2682682682682682 |
| 76 | ddmns123 minus 1341341341341341 -> -1341341341341341 |
| 77 | ddmns124 minus -1341341341341341 -> 1341341341341341 |
| 78 | |
| 79 | -- Nmax, Nmin, Ntiny |
| 80 | ddmns131 minus 9.999999999999999E+384 -> -9.999999999999999E+384 |
| 81 | ddmns132 minus 1E-383 -> -1E-383 |
| 82 | ddmns133 minus 1.000000000000000E-383 -> -1.000000000000000E-383 |
| 83 | ddmns134 minus 1E-398 -> -1E-398 Subnormal |
| 84 | |
| 85 | ddmns135 minus -1E-398 -> 1E-398 Subnormal |
| 86 | ddmns136 minus -1.000000000000000E-383 -> 1.000000000000000E-383 |
| 87 | ddmns137 minus -1E-383 -> 1E-383 |
| 88 | ddmns138 minus -9.999999999999999E+384 -> 9.999999999999999E+384 |