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