| 1 | ------------------------------------------------------------------------
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| 2 | -- nextminus.decTest -- decimal next that is less [754r nextdown] --
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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 | extended: 1
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| 23 | precision: 9
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| 24 | rounding: half_up
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| 25 | maxExponent: 384
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| 26 | minexponent: -383
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| 27 |
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| 28 | nextm001 nextminus 0.999999995 -> 0.999999994
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| 29 | nextm002 nextminus 0.999999996 -> 0.999999995
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| 30 | nextm003 nextminus 0.999999997 -> 0.999999996
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| 31 | nextm004 nextminus 0.999999998 -> 0.999999997
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| 32 | nextm005 nextminus 0.999999999 -> 0.999999998
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| 33 | nextm006 nextminus 1.00000000 -> 0.999999999
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| 34 | nextm007 nextminus 1.0 -> 0.999999999
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| 35 | nextm008 nextminus 1 -> 0.999999999
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| 36 | nextm009 nextminus 1.00000001 -> 1.00000000
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| 37 | nextm010 nextminus 1.00000002 -> 1.00000001
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| 38 | nextm011 nextminus 1.00000003 -> 1.00000002
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| 39 | nextm012 nextminus 1.00000004 -> 1.00000003
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| 40 | nextm013 nextminus 1.00000005 -> 1.00000004
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| 41 | nextm014 nextminus 1.00000006 -> 1.00000005
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| 42 | nextm015 nextminus 1.00000007 -> 1.00000006
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| 43 | nextm016 nextminus 1.00000008 -> 1.00000007
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| 44 | nextm017 nextminus 1.00000009 -> 1.00000008
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| 45 | nextm018 nextminus 1.00000010 -> 1.00000009
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| 46 | nextm019 nextminus 1.00000011 -> 1.00000010
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| 47 | nextm020 nextminus 1.00000012 -> 1.00000011
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| 48 |
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| 49 | nextm021 nextminus -0.999999995 -> -0.999999996
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| 50 | nextm022 nextminus -0.999999996 -> -0.999999997
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| 51 | nextm023 nextminus -0.999999997 -> -0.999999998
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| 52 | nextm024 nextminus -0.999999998 -> -0.999999999
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| 53 | nextm025 nextminus -0.999999999 -> -1.00000000
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| 54 | nextm026 nextminus -1.00000000 -> -1.00000001
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| 55 | nextm027 nextminus -1.0 -> -1.00000001
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| 56 | nextm028 nextminus -1 -> -1.00000001
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| 57 | nextm029 nextminus -1.00000001 -> -1.00000002
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| 58 | nextm030 nextminus -1.00000002 -> -1.00000003
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| 59 | nextm031 nextminus -1.00000003 -> -1.00000004
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| 60 | nextm032 nextminus -1.00000004 -> -1.00000005
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| 61 | nextm033 nextminus -1.00000005 -> -1.00000006
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| 62 | nextm034 nextminus -1.00000006 -> -1.00000007
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| 63 | nextm035 nextminus -1.00000007 -> -1.00000008
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| 64 | nextm036 nextminus -1.00000008 -> -1.00000009
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| 65 | nextm037 nextminus -1.00000009 -> -1.00000010
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| 66 | nextm038 nextminus -1.00000010 -> -1.00000011
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| 67 | nextm039 nextminus -1.00000011 -> -1.00000012
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| 68 |
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| 69 | -- input operand is >precision
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| 70 | nextm041 nextminus 1.00000010998 -> 1.00000010
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| 71 | nextm042 nextminus 1.00000010999 -> 1.00000010
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| 72 | nextm043 nextminus 1.00000011000 -> 1.00000010
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| 73 | nextm044 nextminus 1.00000011001 -> 1.00000011
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| 74 | nextm045 nextminus 1.00000011002 -> 1.00000011
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| 75 | nextm046 nextminus 1.00000011002 -> 1.00000011
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| 76 | nextm047 nextminus 1.00000011052 -> 1.00000011
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| 77 | nextm048 nextminus 1.00000011552 -> 1.00000011
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| 78 | nextm049 nextminus -1.00000010998 -> -1.00000011
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| 79 | nextm050 nextminus -1.00000010999 -> -1.00000011
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| 80 | nextm051 nextminus -1.00000011000 -> -1.00000012
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| 81 | nextm052 nextminus -1.00000011001 -> -1.00000012
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| 82 | nextm053 nextminus -1.00000011002 -> -1.00000012
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| 83 | nextm054 nextminus -1.00000011002 -> -1.00000012
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| 84 | nextm055 nextminus -1.00000011052 -> -1.00000012
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| 85 | nextm056 nextminus -1.00000011552 -> -1.00000012
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| 86 | -- ultra-tiny inputs
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| 87 | nextm060 nextminus 1E-99999 -> 0E-391
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| 88 | nextm061 nextminus 1E-999999999 -> 0E-391
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| 89 | nextm062 nextminus 1E-391 -> 0E-391
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| 90 | nextm063 nextminus -1E-99999 -> -1E-391
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| 91 | nextm064 nextminus -1E-999999999 -> -1E-391
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| 92 | nextm065 nextminus -1E-391 -> -2E-391
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| 93 |
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| 94 | -- Zeros
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| 95 | nextm100 nextminus -0 -> -1E-391
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| 96 | nextm101 nextminus 0 -> -1E-391
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| 97 | nextm102 nextminus 0.00 -> -1E-391
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| 98 | nextm103 nextminus -0.00 -> -1E-391
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| 99 | nextm104 nextminus 0E-300 -> -1E-391
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| 100 | nextm105 nextminus 0E+300 -> -1E-391
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| 101 | nextm106 nextminus 0E+30000 -> -1E-391
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| 102 | nextm107 nextminus -0E+30000 -> -1E-391
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| 103 |
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| 104 | precision: 9
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| 105 | maxExponent: 999
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| 106 | minexponent: -999
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| 107 | -- specials
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| 108 | nextm150 nextminus Inf -> 9.99999999E+999
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| 109 | nextm151 nextminus -Inf -> -Infinity
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| 110 | nextm152 nextminus NaN -> NaN
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| 111 | nextm153 nextminus sNaN -> NaN Invalid_operation
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| 112 | nextm154 nextminus NaN77 -> NaN77
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| 113 | nextm155 nextminus sNaN88 -> NaN88 Invalid_operation
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| 114 | nextm156 nextminus -NaN -> -NaN
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| 115 | nextm157 nextminus -sNaN -> -NaN Invalid_operation
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| 116 | nextm158 nextminus -NaN77 -> -NaN77
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| 117 | nextm159 nextminus -sNaN88 -> -NaN88 Invalid_operation
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| 118 |
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| 119 | -- Nmax, Nmin, Ntiny, subnormals
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| 120 | nextm170 nextminus 9.99999999E+999 -> 9.99999998E+999
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| 121 | nextm171 nextminus 9.99999998E+999 -> 9.99999997E+999
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| 122 | nextm172 nextminus 1E-999 -> 9.9999999E-1000
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| 123 | nextm173 nextminus 1.00000000E-999 -> 9.9999999E-1000
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| 124 | nextm174 nextminus 9E-1007 -> 8E-1007
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| 125 | nextm175 nextminus 9.9E-1006 -> 9.8E-1006
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| 126 | nextm176 nextminus 9.9999E-1003 -> 9.9998E-1003
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| 127 | nextm177 nextminus 9.9999999E-1000 -> 9.9999998E-1000
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| 128 | nextm178 nextminus 9.9999998E-1000 -> 9.9999997E-1000
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| 129 | nextm179 nextminus 9.9999997E-1000 -> 9.9999996E-1000
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| 130 | nextm180 nextminus 0E-1007 -> -1E-1007
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| 131 | nextm181 nextminus 1E-1007 -> 0E-1007
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| 132 | nextm182 nextminus 2E-1007 -> 1E-1007
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| 133 |
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| 134 | nextm183 nextminus -0E-1007 -> -1E-1007
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| 135 | nextm184 nextminus -1E-1007 -> -2E-1007
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| 136 | nextm185 nextminus -2E-1007 -> -3E-1007
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| 137 | nextm186 nextminus -10E-1007 -> -1.1E-1006
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| 138 | nextm187 nextminus -100E-1007 -> -1.01E-1005
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| 139 | nextm188 nextminus -100000E-1007 -> -1.00001E-1002
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| 140 | nextm189 nextminus -1.0000E-999 -> -1.00000001E-999
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| 141 | nextm190 nextminus -1.00000000E-999 -> -1.00000001E-999
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| 142 | nextm191 nextminus -1E-999 -> -1.00000001E-999
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| 143 | nextm192 nextminus -9.99999998E+999 -> -9.99999999E+999
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| 144 | nextm193 nextminus -9.99999999E+999 -> -Infinity
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| 145 |
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| 146 | -- Null tests
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| 147 | nextm900 nextminus # -> NaN Invalid_operation
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| 148 |
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