| ------------------------------------------------------------------------ | |
| -- 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: 2.58 | |
| -- 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 |