1------------------------------------------------------------------------ 2-- ddReduce.decTest -- remove trailing zeros from a decDouble -- 3-- Copyright (c) IBM Corporation, 2003, 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 29ddred001 reduce '1' -> '1' 30ddred002 reduce '-1' -> '-1' 31ddred003 reduce '1.00' -> '1' 32ddred004 reduce '-1.00' -> '-1' 33ddred005 reduce '0' -> '0' 34ddred006 reduce '0.00' -> '0' 35ddred007 reduce '00.0' -> '0' 36ddred008 reduce '00.00' -> '0' 37ddred009 reduce '00' -> '0' 38ddred010 reduce '0E+1' -> '0' 39ddred011 reduce '0E+5' -> '0' 40 41ddred012 reduce '-2' -> '-2' 42ddred013 reduce '2' -> '2' 43ddred014 reduce '-2.00' -> '-2' 44ddred015 reduce '2.00' -> '2' 45ddred016 reduce '-0' -> '-0' 46ddred017 reduce '-0.00' -> '-0' 47ddred018 reduce '-00.0' -> '-0' 48ddred019 reduce '-00.00' -> '-0' 49ddred020 reduce '-00' -> '-0' 50ddred021 reduce '-0E+5' -> '-0' 51ddred022 reduce '-0E+1' -> '-0' 52 53ddred030 reduce '+0.1' -> '0.1' 54ddred031 reduce '-0.1' -> '-0.1' 55ddred032 reduce '+0.01' -> '0.01' 56ddred033 reduce '-0.01' -> '-0.01' 57ddred034 reduce '+0.001' -> '0.001' 58ddred035 reduce '-0.001' -> '-0.001' 59ddred036 reduce '+0.000001' -> '0.000001' 60ddred037 reduce '-0.000001' -> '-0.000001' 61ddred038 reduce '+0.000000000001' -> '1E-12' 62ddred039 reduce '-0.000000000001' -> '-1E-12' 63 64ddred041 reduce 1.1 -> 1.1 65ddred042 reduce 1.10 -> 1.1 66ddred043 reduce 1.100 -> 1.1 67ddred044 reduce 1.110 -> 1.11 68ddred045 reduce -1.1 -> -1.1 69ddred046 reduce -1.10 -> -1.1 70ddred047 reduce -1.100 -> -1.1 71ddred048 reduce -1.110 -> -1.11 72ddred049 reduce 9.9 -> 9.9 73ddred050 reduce 9.90 -> 9.9 74ddred051 reduce 9.900 -> 9.9 75ddred052 reduce 9.990 -> 9.99 76ddred053 reduce -9.9 -> -9.9 77ddred054 reduce -9.90 -> -9.9 78ddred055 reduce -9.900 -> -9.9 79ddred056 reduce -9.990 -> -9.99 80 81-- some trailing fractional zeros with zeros in units 82ddred060 reduce 10.0 -> 1E+1 83ddred061 reduce 10.00 -> 1E+1 84ddred062 reduce 100.0 -> 1E+2 85ddred063 reduce 100.00 -> 1E+2 86ddred064 reduce 1.1000E+3 -> 1.1E+3 87ddred065 reduce 1.10000E+3 -> 1.1E+3 88ddred066 reduce -10.0 -> -1E+1 89ddred067 reduce -10.00 -> -1E+1 90ddred068 reduce -100.0 -> -1E+2 91ddred069 reduce -100.00 -> -1E+2 92ddred070 reduce -1.1000E+3 -> -1.1E+3 93ddred071 reduce -1.10000E+3 -> -1.1E+3 94 95-- some insignificant trailing zeros with positive exponent 96ddred080 reduce 10E+1 -> 1E+2 97ddred081 reduce 100E+1 -> 1E+3 98ddred082 reduce 1.0E+2 -> 1E+2 99ddred083 reduce 1.0E+3 -> 1E+3 100ddred084 reduce 1.1E+3 -> 1.1E+3 101ddred085 reduce 1.00E+3 -> 1E+3 102ddred086 reduce 1.10E+3 -> 1.1E+3 103ddred087 reduce -10E+1 -> -1E+2 104ddred088 reduce -100E+1 -> -1E+3 105ddred089 reduce -1.0E+2 -> -1E+2 106ddred090 reduce -1.0E+3 -> -1E+3 107ddred091 reduce -1.1E+3 -> -1.1E+3 108ddred092 reduce -1.00E+3 -> -1E+3 109ddred093 reduce -1.10E+3 -> -1.1E+3 110 111-- some significant trailing zeros, were we to be trimming 112ddred100 reduce 11 -> 11 113ddred101 reduce 10 -> 1E+1 114ddred102 reduce 10. -> 1E+1 115ddred103 reduce 1.1E+1 -> 11 116ddred104 reduce 1.0E+1 -> 1E+1 117ddred105 reduce 1.10E+2 -> 1.1E+2 118ddred106 reduce 1.00E+2 -> 1E+2 119ddred107 reduce 1.100E+3 -> 1.1E+3 120ddred108 reduce 1.000E+3 -> 1E+3 121ddred109 reduce 1.000000E+6 -> 1E+6 122ddred110 reduce -11 -> -11 123ddred111 reduce -10 -> -1E+1 124ddred112 reduce -10. -> -1E+1 125ddred113 reduce -1.1E+1 -> -11 126ddred114 reduce -1.0E+1 -> -1E+1 127ddred115 reduce -1.10E+2 -> -1.1E+2 128ddred116 reduce -1.00E+2 -> -1E+2 129ddred117 reduce -1.100E+3 -> -1.1E+3 130ddred118 reduce -1.000E+3 -> -1E+3 131ddred119 reduce -1.00000E+5 -> -1E+5 132ddred120 reduce -1.000000E+6 -> -1E+6 133ddred121 reduce -10.00000E+6 -> -1E+7 134ddred122 reduce -100.0000E+6 -> -1E+8 135ddred123 reduce -1000.000E+6 -> -1E+9 136ddred124 reduce -10000.00E+6 -> -1E+10 137ddred125 reduce -100000.0E+6 -> -1E+11 138ddred126 reduce -1000000.E+6 -> -1E+12 139 140-- examples from decArith 141ddred140 reduce '2.1' -> '2.1' 142ddred141 reduce '-2.0' -> '-2' 143ddred142 reduce '1.200' -> '1.2' 144ddred143 reduce '-120' -> '-1.2E+2' 145ddred144 reduce '120.00' -> '1.2E+2' 146ddred145 reduce '0.00' -> '0' 147 148-- Nmax, Nmin, Ntiny 149-- note origami effect on some of these 150ddred151 reduce 9.999999999999999E+384 -> 9.999999999999999E+384 151ddred152 reduce 9.999999000000000E+380 -> 9.99999900000E+380 152ddred153 reduce 9.999999999990000E+384 -> 9.999999999990000E+384 153ddred154 reduce 1E-383 -> 1E-383 154ddred155 reduce 1.000000000000000E-383 -> 1E-383 155ddred156 reduce 2.000E-395 -> 2E-395 Subnormal 156ddred157 reduce 1E-398 -> 1E-398 Subnormal 157 158ddred161 reduce -1E-398 -> -1E-398 Subnormal 159ddred162 reduce -2.000E-395 -> -2E-395 Subnormal 160ddred163 reduce -1.000000000000000E-383 -> -1E-383 161ddred164 reduce -1E-383 -> -1E-383 162ddred165 reduce -9.999999000000000E+380 -> -9.99999900000E+380 163ddred166 reduce -9.999999999990000E+384 -> -9.999999999990000E+384 164ddred167 reduce -9.999999999999990E+384 -> -9.999999999999990E+384 165ddred168 reduce -9.999999999999999E+384 -> -9.999999999999999E+384 166ddred169 reduce -9.999999999999990E+384 -> -9.999999999999990E+384 167 168 169-- specials (reduce does not affect payload) 170ddred820 reduce 'Inf' -> 'Infinity' 171ddred821 reduce '-Inf' -> '-Infinity' 172ddred822 reduce NaN -> NaN 173ddred823 reduce sNaN -> NaN Invalid_operation 174ddred824 reduce NaN101 -> NaN101 175ddred825 reduce sNaN010 -> NaN10 Invalid_operation 176ddred827 reduce -NaN -> -NaN 177ddred828 reduce -sNaN -> -NaN Invalid_operation 178ddred829 reduce -NaN101 -> -NaN101 179ddred830 reduce -sNaN010 -> -NaN10 Invalid_operation 180 181-- Null test 182ddred900 reduce # -> NaN Invalid_operation 183