1 ------------------------------------------------------------------------ 2 -- ddMinus.decTest -- decDouble 0-x -- 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 -- All operands and results are decDoubles. 23 precision: 16 24 maxExponent: 384 25 minExponent: -383 26 extended: 1 27 clamp: 1 28 rounding: half_even 29 30 -- Sanity check 31 ddmns001 minus +7.50 -> -7.50 32 33 -- Infinities 34 ddmns011 minus Infinity -> -Infinity 35 ddmns012 minus -Infinity -> Infinity 36 37 -- NaNs, 0 payload 38 ddmns021 minus NaN -> NaN 39 ddmns022 minus -NaN -> -NaN 40 ddmns023 minus sNaN -> NaN Invalid_operation 41 ddmns024 minus -sNaN -> -NaN Invalid_operation 42 43 -- NaNs, non-0 payload 44 ddmns031 minus NaN13 -> NaN13 45 ddmns032 minus -NaN13 -> -NaN13 46 ddmns033 minus sNaN13 -> NaN13 Invalid_operation 47 ddmns034 minus -sNaN13 -> -NaN13 Invalid_operation 48 ddmns035 minus NaN70 -> NaN70 49 ddmns036 minus -NaN70 -> -NaN70 50 ddmns037 minus sNaN101 -> NaN101 Invalid_operation 51 ddmns038 minus -sNaN101 -> -NaN101 Invalid_operation 52 53 -- finites 54 ddmns101 minus 7 -> -7 55 ddmns102 minus -7 -> 7 56 ddmns103 minus 75 -> -75 57 ddmns104 minus -75 -> 75 58 ddmns105 minus 7.50 -> -7.50 59 ddmns106 minus -7.50 -> 7.50 60 ddmns107 minus 7.500 -> -7.500 61 ddmns108 minus -7.500 -> 7.500 62 63 -- zeros 64 ddmns111 minus 0 -> 0 65 ddmns112 minus -0 -> 0 66 ddmns113 minus 0E+4 -> 0E+4 67 ddmns114 minus -0E+4 -> 0E+4 68 ddmns115 minus 0.0000 -> 0.0000 69 ddmns116 minus -0.0000 -> 0.0000 70 ddmns117 minus 0E-141 -> 0E-141 71 ddmns118 minus -0E-141 -> 0E-141 72 73 -- full coefficients, alternating bits 74 ddmns121 minus 2682682682682682 -> -2682682682682682 75 ddmns122 minus -2682682682682682 -> 2682682682682682 76 ddmns123 minus 1341341341341341 -> -1341341341341341 77 ddmns124 minus -1341341341341341 -> 1341341341341341 78 79 -- Nmax, Nmin, Ntiny 80 ddmns131 minus 9.999999999999999E+384 -> -9.999999999999999E+384 81 ddmns132 minus 1E-383 -> -1E-383 82 ddmns133 minus 1.000000000000000E-383 -> -1.000000000000000E-383 83 ddmns134 minus 1E-398 -> -1E-398 Subnormal 84 85 ddmns135 minus -1E-398 -> 1E-398 Subnormal 86 ddmns136 minus -1.000000000000000E-383 -> 1.000000000000000E-383 87 ddmns137 minus -1E-383 -> 1E-383 88 ddmns138 minus -9.999999999999999E+384 -> 9.999999999999999E+384 89
