1 ------------------------------------------------------------------------ 2 -- ddAbs.decTest -- decDouble absolute value, heeding sNaN -- 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 (a] uk.ibm.com -- 19 ------------------------------------------------------------------------ 20 version: 2.59 21 22 precision: 16 23 maxExponent: 384 24 minExponent: -383 25 extended: 1 26 clamp: 1 27 rounding: half_even 28 29 ddabs001 abs '1' -> '1' 30 ddabs002 abs '-1' -> '1' 31 ddabs003 abs '1.00' -> '1.00' 32 ddabs004 abs '-1.00' -> '1.00' 33 ddabs005 abs '0' -> '0' 34 ddabs006 abs '0.00' -> '0.00' 35 ddabs007 abs '00.0' -> '0.0' 36 ddabs008 abs '00.00' -> '0.00' 37 ddabs009 abs '00' -> '0' 38 39 ddabs010 abs '-2' -> '2' 40 ddabs011 abs '2' -> '2' 41 ddabs012 abs '-2.00' -> '2.00' 42 ddabs013 abs '2.00' -> '2.00' 43 ddabs014 abs '-0' -> '0' 44 ddabs015 abs '-0.00' -> '0.00' 45 ddabs016 abs '-00.0' -> '0.0' 46 ddabs017 abs '-00.00' -> '0.00' 47 ddabs018 abs '-00' -> '0' 48 49 ddabs020 abs '-2000000' -> '2000000' 50 ddabs021 abs '2000000' -> '2000000' 51 52 ddabs030 abs '+0.1' -> '0.1' 53 ddabs031 abs '-0.1' -> '0.1' 54 ddabs032 abs '+0.01' -> '0.01' 55 ddabs033 abs '-0.01' -> '0.01' 56 ddabs034 abs '+0.001' -> '0.001' 57 ddabs035 abs '-0.001' -> '0.001' 58 ddabs036 abs '+0.000001' -> '0.000001' 59 ddabs037 abs '-0.000001' -> '0.000001' 60 ddabs038 abs '+0.000000000001' -> '1E-12' 61 ddabs039 abs '-0.000000000001' -> '1E-12' 62 63 -- examples from decArith 64 ddabs040 abs '2.1' -> '2.1' 65 ddabs041 abs '-100' -> '100' 66 ddabs042 abs '101.5' -> '101.5' 67 ddabs043 abs '-101.5' -> '101.5' 68 69 -- more fixed, potential LHS swaps/overlays if done by subtract 0 70 ddabs060 abs '-56267E-10' -> '0.0000056267' 71 ddabs061 abs '-56267E-5' -> '0.56267' 72 ddabs062 abs '-56267E-2' -> '562.67' 73 ddabs063 abs '-56267E-1' -> '5626.7' 74 ddabs065 abs '-56267E-0' -> '56267' 75 76 -- subnormals and underflow 77 78 -- long operand tests 79 ddabs321 abs 1234567890123456 -> 1234567890123456 80 ddabs322 abs 12345678000 -> 12345678000 81 ddabs323 abs 1234567800 -> 1234567800 82 ddabs324 abs 1234567890 -> 1234567890 83 ddabs325 abs 1234567891 -> 1234567891 84 ddabs326 abs 12345678901 -> 12345678901 85 ddabs327 abs 1234567896 -> 1234567896 86 87 -- zeros 88 ddabs111 abs 0 -> 0 89 ddabs112 abs -0 -> 0 90 ddabs113 abs 0E+6 -> 0E+6 91 ddabs114 abs -0E+6 -> 0E+6 92 ddabs115 abs 0.0000 -> 0.0000 93 ddabs116 abs -0.0000 -> 0.0000 94 ddabs117 abs 0E-141 -> 0E-141 95 ddabs118 abs -0E-141 -> 0E-141 96 97 -- full coefficients, alternating bits 98 ddabs121 abs 2682682682682682 -> 2682682682682682 99 ddabs122 abs -2682682682682682 -> 2682682682682682 100 ddabs123 abs 1341341341341341 -> 1341341341341341 101 ddabs124 abs -1341341341341341 -> 1341341341341341 102 103 -- Nmax, Nmin, Ntiny 104 ddabs131 abs 9.999999999999999E+384 -> 9.999999999999999E+384 105 ddabs132 abs 1E-383 -> 1E-383 106 ddabs133 abs 1.000000000000000E-383 -> 1.000000000000000E-383 107 ddabs134 abs 1E-398 -> 1E-398 Subnormal 108 109 ddabs135 abs -1E-398 -> 1E-398 Subnormal 110 ddabs136 abs -1.000000000000000E-383 -> 1.000000000000000E-383 111 ddabs137 abs -1E-383 -> 1E-383 112 ddabs138 abs -9.999999999999999E+384 -> 9.999999999999999E+384 113 114 -- specials 115 ddabs520 abs 'Inf' -> 'Infinity' 116 ddabs521 abs '-Inf' -> 'Infinity' 117 ddabs522 abs NaN -> NaN 118 ddabs523 abs sNaN -> NaN Invalid_operation 119 ddabs524 abs NaN22 -> NaN22 120 ddabs525 abs sNaN33 -> NaN33 Invalid_operation 121 ddabs526 abs -NaN22 -> -NaN22 122 ddabs527 abs -sNaN33 -> -NaN33 Invalid_operation 123 124 -- Null tests 125 ddabs900 abs # -> NaN Invalid_operation 126 127
