1 ------------------------------------------------------------------------ 2 -- dqMinus.decTest -- decQuad 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 decQuads. 23 extended: 1 24 clamp: 1 25 precision: 34 26 maxExponent: 6144 27 minExponent: -6143 28 rounding: half_even 29 30 -- Sanity check 31 dqmns001 minus +7.50 -> -7.50 32 33 -- Infinities 34 dqmns011 minus Infinity -> -Infinity 35 dqmns012 minus -Infinity -> Infinity 36 37 -- NaNs, 0 payload 38 dqmns021 minus NaN -> NaN 39 dqmns022 minus -NaN -> -NaN 40 dqmns023 minus sNaN -> NaN Invalid_operation 41 dqmns024 minus -sNaN -> -NaN Invalid_operation 42 43 -- NaNs, non-0 payload 44 dqmns031 minus NaN13 -> NaN13 45 dqmns032 minus -NaN13 -> -NaN13 46 dqmns033 minus sNaN13 -> NaN13 Invalid_operation 47 dqmns034 minus -sNaN13 -> -NaN13 Invalid_operation 48 dqmns035 minus NaN70 -> NaN70 49 dqmns036 minus -NaN70 -> -NaN70 50 dqmns037 minus sNaN101 -> NaN101 Invalid_operation 51 dqmns038 minus -sNaN101 -> -NaN101 Invalid_operation 52 53 -- finites 54 dqmns101 minus 7 -> -7 55 dqmns102 minus -7 -> 7 56 dqmns103 minus 75 -> -75 57 dqmns104 minus -75 -> 75 58 dqmns105 minus 7.50 -> -7.50 59 dqmns106 minus -7.50 -> 7.50 60 dqmns107 minus 7.500 -> -7.500 61 dqmns108 minus -7.500 -> 7.500 62 63 -- zeros 64 dqmns111 minus 0 -> 0 65 dqmns112 minus -0 -> 0 66 dqmns113 minus 0E+4 -> 0E+4 67 dqmns114 minus -0E+4 -> 0E+4 68 dqmns115 minus 0.0000 -> 0.0000 69 dqmns116 minus -0.0000 -> 0.0000 70 dqmns117 minus 0E-141 -> 0E-141 71 dqmns118 minus -0E-141 -> 0E-141 72 73 -- full coefficients, alternating bits 74 dqmns121 minus 2682682682682682682682682682682682 -> -2682682682682682682682682682682682 75 dqmns122 minus -2682682682682682682682682682682682 -> 2682682682682682682682682682682682 76 dqmns123 minus 1341341341341341341341341341341341 -> -1341341341341341341341341341341341 77 dqmns124 minus -1341341341341341341341341341341341 -> 1341341341341341341341341341341341 78 79 -- Nmax, Nmin, Ntiny 80 dqmns131 minus 9.999999999999999999999999999999999E+6144 -> -9.999999999999999999999999999999999E+6144 81 dqmns132 minus 1E-6143 -> -1E-6143 82 dqmns133 minus 1.000000000000000000000000000000000E-6143 -> -1.000000000000000000000000000000000E-6143 83 dqmns134 minus 1E-6176 -> -1E-6176 Subnormal 84 85 dqmns135 minus -1E-6176 -> 1E-6176 Subnormal 86 dqmns136 minus -1.000000000000000000000000000000000E-6143 -> 1.000000000000000000000000000000000E-6143 87 dqmns137 minus -1E-6143 -> 1E-6143 88 dqmns138 minus -9.999999999999999999999999999999999E+6144 -> 9.999999999999999999999999999999999E+6144 89
