github.com/cockroachdb/apd/v3@v3.2.0/testdata/minus.decTest (about) 1 ------------------------------------------------------------------------ 2 -- minus.decTest -- decimal negation -- 3 -- Copyright (c) Mike Cowlishaw, 1981, 2010. All rights reserved. -- 4 -- Parts copyright (c) IBM Corporation, 1981, 2008. -- 5 ------------------------------------------------------------------------ 6 -- Please see the document "General Decimal Arithmetic Testcases" -- 7 -- at http://speleotrove.com/decimal for the description of -- 8 -- these testcases. -- 9 -- -- 10 -- These testcases are experimental ('beta' versions), and they -- 11 -- may contain errors. They are offered on an as-is basis. In -- 12 -- particular, achieving the same results as the tests here is not -- 13 -- a guarantee that an implementation complies with any Standard -- 14 -- or specification. The tests are not exhaustive. -- 15 -- -- 16 -- Please send comments, suggestions, and corrections to the author: -- 17 -- Mike Cowlishaw, mfc@speleotrove.com -- 18 ------------------------------------------------------------------------ 19 version: 2.62 20 21 -- This set of tests primarily tests the existence of the operator. 22 -- Subtraction, rounding, and more overflows are tested elsewhere. 23 24 extended: 1 25 precision: 9 26 rounding: half_up 27 maxExponent: 384 28 minexponent: -383 29 30 minx001 minus '1' -> '-1' 31 minx002 minus '-1' -> '1' 32 minx003 minus '1.00' -> '-1.00' 33 minx004 minus '-1.00' -> '1.00' 34 minx005 minus '0' -> '0' 35 minx006 minus '0.00' -> '0.00' 36 minx007 minus '00.0' -> '0.0' 37 minx008 minus '00.00' -> '0.00' 38 minx009 minus '00' -> '0' 39 40 minx010 minus '-2' -> '2' 41 minx011 minus '2' -> '-2' 42 minx012 minus '-2.00' -> '2.00' 43 minx013 minus '2.00' -> '-2.00' 44 minx014 minus '-0' -> '0' 45 minx015 minus '-0.00' -> '0.00' 46 minx016 minus '-00.0' -> '0.0' 47 minx017 minus '-00.00' -> '0.00' 48 minx018 minus '-00' -> '0' 49 50 -- "lhs" zeros in plus and minus have exponent = operand 51 minx020 minus '-0E3' -> '0E+3' 52 minx021 minus '-0E2' -> '0E+2' 53 minx022 minus '-0E1' -> '0E+1' 54 minx023 minus '-0E0' -> '0' 55 minx024 minus '+0E0' -> '0' 56 minx025 minus '+0E1' -> '0E+1' 57 minx026 minus '+0E2' -> '0E+2' 58 minx027 minus '+0E3' -> '0E+3' 59 60 minx030 minus '-5E3' -> '5E+3' 61 minx031 minus '-5E8' -> '5E+8' 62 minx032 minus '-5E13' -> '5E+13' 63 minx033 minus '-5E18' -> '5E+18' 64 minx034 minus '+5E3' -> '-5E+3' 65 minx035 minus '+5E8' -> '-5E+8' 66 minx036 minus '+5E13' -> '-5E+13' 67 minx037 minus '+5E18' -> '-5E+18' 68 69 minx050 minus '-2000000' -> '2000000' 70 minx051 minus '2000000' -> '-2000000' 71 precision: 7 72 minx052 minus '-2000000' -> '2000000' 73 minx053 minus '2000000' -> '-2000000' 74 precision: 6 75 minx054 minus '-2000000' -> '2.00000E+6' Rounded 76 minx055 minus '2000000' -> '-2.00000E+6' Rounded 77 precision: 3 78 minx056 minus '-2000000' -> '2.00E+6' Rounded 79 minx057 minus '2000000' -> '-2.00E+6' Rounded 80 81 -- more fixed, potential LHS swaps/overlays if done by 0 subtract x 82 precision: 9 83 minx060 minus '56267E-10' -> '-0.0000056267' 84 minx061 minus '56267E-5' -> '-0.56267' 85 minx062 minus '56267E-2' -> '-562.67' 86 minx063 minus '56267E-1' -> '-5626.7' 87 minx065 minus '56267E-0' -> '-56267' 88 minx066 minus '56267E+0' -> '-56267' 89 minx067 minus '56267E+1' -> '-5.6267E+5' 90 minx068 minus '56267E+2' -> '-5.6267E+6' 91 minx069 minus '56267E+3' -> '-5.6267E+7' 92 minx070 minus '56267E+4' -> '-5.6267E+8' 93 minx071 minus '56267E+5' -> '-5.6267E+9' 94 minx072 minus '56267E+6' -> '-5.6267E+10' 95 minx080 minus '-56267E-10' -> '0.0000056267' 96 minx081 minus '-56267E-5' -> '0.56267' 97 minx082 minus '-56267E-2' -> '562.67' 98 minx083 minus '-56267E-1' -> '5626.7' 99 minx085 minus '-56267E-0' -> '56267' 100 minx086 minus '-56267E+0' -> '56267' 101 minx087 minus '-56267E+1' -> '5.6267E+5' 102 minx088 minus '-56267E+2' -> '5.6267E+6' 103 minx089 minus '-56267E+3' -> '5.6267E+7' 104 minx090 minus '-56267E+4' -> '5.6267E+8' 105 minx091 minus '-56267E+5' -> '5.6267E+9' 106 minx092 minus '-56267E+6' -> '5.6267E+10' 107 108 109 -- overflow tests 110 maxexponent: 999999999 111 minexponent: -999999999 112 precision: 3 113 minx100 minus 9.999E+999999999 -> -Infinity Inexact Overflow Rounded 114 minx101 minus -9.999E+999999999 -> Infinity Inexact Overflow Rounded 115 116 -- subnormals and underflow 117 precision: 3 118 maxexponent: 999 119 minexponent: -999 120 minx110 minus 1.00E-999 -> -1.00E-999 121 minx111 minus 0.1E-999 -> -1E-1000 Subnormal 122 minx112 minus 0.10E-999 -> -1.0E-1000 Subnormal 123 minx113 minus 0.100E-999 -> -1.0E-1000 Subnormal Rounded 124 minx114 minus 0.01E-999 -> -1E-1001 Subnormal 125 -- next is rounded to Emin 126 minx115 minus 0.999E-999 -> -1.00E-999 Inexact Rounded Subnormal Underflow 127 minx116 minus 0.099E-999 -> -1.0E-1000 Inexact Rounded Subnormal Underflow 128 minx117 minus 0.009E-999 -> -1E-1001 Inexact Rounded Subnormal Underflow 129 minx118 minus 0.001E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped 130 minx119 minus 0.0009E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped 131 minx120 minus 0.0001E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped 132 133 minx130 minus -1.00E-999 -> 1.00E-999 134 minx131 minus -0.1E-999 -> 1E-1000 Subnormal 135 minx132 minus -0.10E-999 -> 1.0E-1000 Subnormal 136 minx133 minus -0.100E-999 -> 1.0E-1000 Subnormal Rounded 137 minx134 minus -0.01E-999 -> 1E-1001 Subnormal 138 -- next is rounded to Emin 139 minx135 minus -0.999E-999 -> 1.00E-999 Inexact Rounded Subnormal Underflow 140 minx136 minus -0.099E-999 -> 1.0E-1000 Inexact Rounded Subnormal Underflow 141 minx137 minus -0.009E-999 -> 1E-1001 Inexact Rounded Subnormal Underflow 142 minx138 minus -0.001E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped 143 minx139 minus -0.0009E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped 144 minx140 minus -0.0001E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped 145 146 147 -- long operand checks 148 maxexponent: 999 149 minexponent: -999 150 precision: 9 151 minx301 minus 12345678000 -> -1.23456780E+10 Rounded 152 minx302 minus 1234567800 -> -1.23456780E+9 Rounded 153 minx303 minus 1234567890 -> -1.23456789E+9 Rounded 154 minx304 minus 1234567891 -> -1.23456789E+9 Inexact Rounded 155 minx305 minus 12345678901 -> -1.23456789E+10 Inexact Rounded 156 minx306 minus 1234567896 -> -1.23456790E+9 Inexact Rounded 157 158 precision: 15 159 -- still checking 160 minx321 minus 12345678000 -> -12345678000 161 minx322 minus 1234567800 -> -1234567800 162 minx323 minus 1234567890 -> -1234567890 163 minx324 minus 1234567891 -> -1234567891 164 minx325 minus 12345678901 -> -12345678901 165 minx326 minus 1234567896 -> -1234567896 166 167 -- specials 168 minx420 minus 'Inf' -> '-Infinity' 169 minx421 minus '-Inf' -> 'Infinity' 170 minx422 minus NaN -> NaN 171 minx423 minus sNaN -> NaN Invalid_operation 172 minx424 minus NaN255 -> NaN255 173 minx425 minus sNaN256 -> NaN256 Invalid_operation 174 minx426 minus -NaN -> -NaN 175 minx427 minus -sNaN -> -NaN Invalid_operation 176 minx428 minus -NaN255 -> -NaN255 177 minx429 minus -sNaN256 -> -NaN256 Invalid_operation 178 179 -- Null tests 180 minx900 minus # -> NaN Invalid_operation 181