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✏️ ddMinus.decTest
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------------------------------------------------------------------------ -- ddMinus.decTest -- decDouble 0-x -- -- Copyright (c) IBM Corporation, 1981, 2008. All rights reserved. -- ------------------------------------------------------------------------ -- Please see the document "General Decimal Arithmetic Testcases" -- -- at http://www2.hursley.ibm.com/decimal for the description of -- -- these testcases. -- -- -- -- These testcases are experimental ('beta' versions), and they -- -- may contain errors. They are offered on an as-is basis. In -- -- particular, achieving the same results as the tests here is not -- -- a guarantee that an implementation complies with any Standard -- -- or specification. The tests are not exhaustive. -- -- -- -- Please send comments, suggestions, and corrections to the author: -- -- Mike Cowlishaw, IBM Fellow -- -- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK -- -- mfc@uk.ibm.com -- ------------------------------------------------------------------------ version: 2.59 -- All operands and results are decDoubles. precision: 16 maxExponent: 384 minExponent: -383 extended: 1 clamp: 1 rounding: half_even -- Sanity check ddmns001 minus +7.50 -> -7.50 -- Infinities ddmns011 minus Infinity -> -Infinity ddmns012 minus -Infinity -> Infinity -- NaNs, 0 payload ddmns021 minus NaN -> NaN ddmns022 minus -NaN -> -NaN ddmns023 minus sNaN -> NaN Invalid_operation ddmns024 minus -sNaN -> -NaN Invalid_operation -- NaNs, non-0 payload ddmns031 minus NaN13 -> NaN13 ddmns032 minus -NaN13 -> -NaN13 ddmns033 minus sNaN13 -> NaN13 Invalid_operation ddmns034 minus -sNaN13 -> -NaN13 Invalid_operation ddmns035 minus NaN70 -> NaN70 ddmns036 minus -NaN70 -> -NaN70 ddmns037 minus sNaN101 -> NaN101 Invalid_operation ddmns038 minus -sNaN101 -> -NaN101 Invalid_operation -- finites ddmns101 minus 7 -> -7 ddmns102 minus -7 -> 7 ddmns103 minus 75 -> -75 ddmns104 minus -75 -> 75 ddmns105 minus 7.50 -> -7.50 ddmns106 minus -7.50 -> 7.50 ddmns107 minus 7.500 -> -7.500 ddmns108 minus -7.500 -> 7.500 -- zeros ddmns111 minus 0 -> 0 ddmns112 minus -0 -> 0 ddmns113 minus 0E+4 -> 0E+4 ddmns114 minus -0E+4 -> 0E+4 ddmns115 minus 0.0000 -> 0.0000 ddmns116 minus -0.0000 -> 0.0000 ddmns117 minus 0E-141 -> 0E-141 ddmns118 minus -0E-141 -> 0E-141 -- full coefficients, alternating bits ddmns121 minus 2682682682682682 -> -2682682682682682 ddmns122 minus -2682682682682682 -> 2682682682682682 ddmns123 minus 1341341341341341 -> -1341341341341341 ddmns124 minus -1341341341341341 -> 1341341341341341 -- Nmax, Nmin, Ntiny ddmns131 minus 9.999999999999999E+384 -> -9.999999999999999E+384 ddmns132 minus 1E-383 -> -1E-383 ddmns133 minus 1.000000000000000E-383 -> -1.000000000000000E-383 ddmns134 minus 1E-398 -> -1E-398 Subnormal ddmns135 minus -1E-398 -> 1E-398 Subnormal ddmns136 minus -1.000000000000000E-383 -> 1.000000000000000E-383 ddmns137 minus -1E-383 -> 1E-383 ddmns138 minus -9.999999999999999E+384 -> 9.999999999999999E+384
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