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- ------------------------------------------------------------------------
- -- ddNextMinus.decTest -- decDouble next that is less [754r nextdown] --
- -- 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
- ddnextm001 nextminus 0.9999999999999995 -> 0.9999999999999994
- ddnextm002 nextminus 0.9999999999999996 -> 0.9999999999999995
- ddnextm003 nextminus 0.9999999999999997 -> 0.9999999999999996
- ddnextm004 nextminus 0.9999999999999998 -> 0.9999999999999997
- ddnextm005 nextminus 0.9999999999999999 -> 0.9999999999999998
- ddnextm006 nextminus 1.000000000000000 -> 0.9999999999999999
- ddnextm007 nextminus 1.0 -> 0.9999999999999999
- ddnextm008 nextminus 1 -> 0.9999999999999999
- ddnextm009 nextminus 1.000000000000001 -> 1.000000000000000
- ddnextm010 nextminus 1.000000000000002 -> 1.000000000000001
- ddnextm011 nextminus 1.000000000000003 -> 1.000000000000002
- ddnextm012 nextminus 1.000000000000004 -> 1.000000000000003
- ddnextm013 nextminus 1.000000000000005 -> 1.000000000000004
- ddnextm014 nextminus 1.000000000000006 -> 1.000000000000005
- ddnextm015 nextminus 1.000000000000007 -> 1.000000000000006
- ddnextm016 nextminus 1.000000000000008 -> 1.000000000000007
- ddnextm017 nextminus 1.000000000000009 -> 1.000000000000008
- ddnextm018 nextminus 1.000000000000010 -> 1.000000000000009
- ddnextm019 nextminus 1.000000000000011 -> 1.000000000000010
- ddnextm020 nextminus 1.000000000000012 -> 1.000000000000011
- ddnextm021 nextminus -0.9999999999999995 -> -0.9999999999999996
- ddnextm022 nextminus -0.9999999999999996 -> -0.9999999999999997
- ddnextm023 nextminus -0.9999999999999997 -> -0.9999999999999998
- ddnextm024 nextminus -0.9999999999999998 -> -0.9999999999999999
- ddnextm025 nextminus -0.9999999999999999 -> -1.000000000000000
- ddnextm026 nextminus -1.000000000000000 -> -1.000000000000001
- ddnextm027 nextminus -1.0 -> -1.000000000000001
- ddnextm028 nextminus -1 -> -1.000000000000001
- ddnextm029 nextminus -1.000000000000001 -> -1.000000000000002
- ddnextm030 nextminus -1.000000000000002 -> -1.000000000000003
- ddnextm031 nextminus -1.000000000000003 -> -1.000000000000004
- ddnextm032 nextminus -1.000000000000004 -> -1.000000000000005
- ddnextm033 nextminus -1.000000000000005 -> -1.000000000000006
- ddnextm034 nextminus -1.000000000000006 -> -1.000000000000007
- ddnextm035 nextminus -1.000000000000007 -> -1.000000000000008
- ddnextm036 nextminus -1.000000000000008 -> -1.000000000000009
- ddnextm037 nextminus -1.000000000000009 -> -1.000000000000010
- ddnextm038 nextminus -1.000000000000010 -> -1.000000000000011
- ddnextm039 nextminus -1.000000000000011 -> -1.000000000000012
- -- ultra-tiny inputs
- ddnextm062 nextminus 1E-398 -> 0E-398
- ddnextm065 nextminus -1E-398 -> -2E-398
- -- Zeros
- ddnextm100 nextminus -0 -> -1E-398
- ddnextm101 nextminus 0 -> -1E-398
- ddnextm102 nextminus 0.00 -> -1E-398
- ddnextm103 nextminus -0.00 -> -1E-398
- ddnextm104 nextminus 0E-300 -> -1E-398
- ddnextm105 nextminus 0E+300 -> -1E-398
- ddnextm106 nextminus 0E+30000 -> -1E-398
- ddnextm107 nextminus -0E+30000 -> -1E-398
- -- specials
- ddnextm150 nextminus Inf -> 9.999999999999999E+384
- ddnextm151 nextminus -Inf -> -Infinity
- ddnextm152 nextminus NaN -> NaN
- ddnextm153 nextminus sNaN -> NaN Invalid_operation
- ddnextm154 nextminus NaN77 -> NaN77
- ddnextm155 nextminus sNaN88 -> NaN88 Invalid_operation
- ddnextm156 nextminus -NaN -> -NaN
- ddnextm157 nextminus -sNaN -> -NaN Invalid_operation
- ddnextm158 nextminus -NaN77 -> -NaN77
- ddnextm159 nextminus -sNaN88 -> -NaN88 Invalid_operation
- -- Nmax, Nmin, Ntiny, subnormals
- ddnextm170 nextminus 9.999999999999999E+384 -> 9.999999999999998E+384
- ddnextm171 nextminus 9.999999999999998E+384 -> 9.999999999999997E+384
- ddnextm172 nextminus 1E-383 -> 9.99999999999999E-384
- ddnextm173 nextminus 1.000000000000000E-383 -> 9.99999999999999E-384
- ddnextm174 nextminus 9E-398 -> 8E-398
- ddnextm175 nextminus 9.9E-397 -> 9.8E-397
- ddnextm176 nextminus 9.99999999999E-387 -> 9.99999999998E-387
- ddnextm177 nextminus 9.99999999999999E-384 -> 9.99999999999998E-384
- ddnextm178 nextminus 9.99999999999998E-384 -> 9.99999999999997E-384
- ddnextm179 nextminus 9.99999999999997E-384 -> 9.99999999999996E-384
- ddnextm180 nextminus 0E-398 -> -1E-398
- ddnextm181 nextminus 1E-398 -> 0E-398
- ddnextm182 nextminus 2E-398 -> 1E-398
- ddnextm183 nextminus -0E-398 -> -1E-398
- ddnextm184 nextminus -1E-398 -> -2E-398
- ddnextm185 nextminus -2E-398 -> -3E-398
- ddnextm186 nextminus -10E-398 -> -1.1E-397
- ddnextm187 nextminus -100E-398 -> -1.01E-396
- ddnextm188 nextminus -100000E-398 -> -1.00001E-393
- ddnextm189 nextminus -1.00000000000E-383 -> -1.000000000000001E-383
- ddnextm190 nextminus -1.000000000000000E-383 -> -1.000000000000001E-383
- ddnextm191 nextminus -1E-383 -> -1.000000000000001E-383
- ddnextm192 nextminus -9.999999999999998E+384 -> -9.999999999999999E+384
- ddnextm193 nextminus -9.999999999999999E+384 -> -Infinity
- -- Null tests
- ddnextm900 nextminus # -> NaN Invalid_operation
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