| 1 | ------------------------------------------------------------------------
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| 2 | -- ddMinus.decTest -- decDouble 0-x --
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| 3 | -- Copyright (c) IBM Corporation, 1981, 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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| 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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| 20 | version: 2.59
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| 21 |
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| 22 | -- All operands and results are decDoubles.
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| 23 | precision: 16
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| 24 | maxExponent: 384
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| 25 | minExponent: -383
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| 26 | extended: 1
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| 27 | clamp: 1
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| 28 | rounding: half_even
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| 29 |
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| 30 | -- Sanity check
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| 31 | ddmns001 minus +7.50 -> -7.50
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| 32 |
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| 33 | -- Infinities
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| 34 | ddmns011 minus Infinity -> -Infinity
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| 35 | ddmns012 minus -Infinity -> Infinity
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| 36 |
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| 37 | -- NaNs, 0 payload
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| 38 | ddmns021 minus NaN -> NaN
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| 39 | ddmns022 minus -NaN -> -NaN
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| 40 | ddmns023 minus sNaN -> NaN Invalid_operation
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| 41 | ddmns024 minus -sNaN -> -NaN Invalid_operation
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| 42 |
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| 43 | -- NaNs, non-0 payload
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| 44 | ddmns031 minus NaN13 -> NaN13
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| 45 | ddmns032 minus -NaN13 -> -NaN13
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| 46 | ddmns033 minus sNaN13 -> NaN13 Invalid_operation
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| 47 | ddmns034 minus -sNaN13 -> -NaN13 Invalid_operation
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| 48 | ddmns035 minus NaN70 -> NaN70
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| 49 | ddmns036 minus -NaN70 -> -NaN70
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| 50 | ddmns037 minus sNaN101 -> NaN101 Invalid_operation
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| 51 | ddmns038 minus -sNaN101 -> -NaN101 Invalid_operation
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| 52 |
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| 53 | -- finites
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| 54 | ddmns101 minus 7 -> -7
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| 55 | ddmns102 minus -7 -> 7
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| 56 | ddmns103 minus 75 -> -75
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| 57 | ddmns104 minus -75 -> 75
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| 58 | ddmns105 minus 7.50 -> -7.50
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| 59 | ddmns106 minus -7.50 -> 7.50
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| 60 | ddmns107 minus 7.500 -> -7.500
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| 61 | ddmns108 minus -7.500 -> 7.500
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| 62 |
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| 63 | -- zeros
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| 64 | ddmns111 minus 0 -> 0
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| 65 | ddmns112 minus -0 -> 0
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| 66 | ddmns113 minus 0E+4 -> 0E+4
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| 67 | ddmns114 minus -0E+4 -> 0E+4
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| 68 | ddmns115 minus 0.0000 -> 0.0000
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| 69 | ddmns116 minus -0.0000 -> 0.0000
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| 70 | ddmns117 minus 0E-141 -> 0E-141
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| 71 | ddmns118 minus -0E-141 -> 0E-141
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| 72 |
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| 73 | -- full coefficients, alternating bits
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| 74 | ddmns121 minus 2682682682682682 -> -2682682682682682
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| 75 | ddmns122 minus -2682682682682682 -> 2682682682682682
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| 76 | ddmns123 minus 1341341341341341 -> -1341341341341341
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| 77 | ddmns124 minus -1341341341341341 -> 1341341341341341
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| 78 |
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| 79 | -- Nmax, Nmin, Ntiny
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| 80 | ddmns131 minus 9.999999999999999E+384 -> -9.999999999999999E+384
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| 81 | ddmns132 minus 1E-383 -> -1E-383
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| 82 | ddmns133 minus 1.000000000000000E-383 -> -1.000000000000000E-383
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| 83 | ddmns134 minus 1E-398 -> -1E-398 Subnormal
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| 84 |
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| 85 | ddmns135 minus -1E-398 -> 1E-398 Subnormal
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| 86 | ddmns136 minus -1.000000000000000E-383 -> 1.000000000000000E-383
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| 87 | ddmns137 minus -1E-383 -> 1E-383
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| 88 | ddmns138 minus -9.999999999999999E+384 -> 9.999999999999999E+384
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