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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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