2011-03-05 10:06:13 -04:00
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------------------------------------------------------------------------
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-- nextminus.decTest -- decimal next that is less [754r nextdown] --
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-- Copyright (c) IBM Corporation, 1981, 2008. All rights reserved. --
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------------------------------------------------------------------------
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-- Please see the document "General Decimal Arithmetic Testcases" --
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-- at http://www2.hursley.ibm.com/decimal for the description of --
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-- these testcases. --
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-- --
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-- These testcases are experimental ('beta' versions), and they --
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-- may contain errors. They are offered on an as-is basis. In --
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-- particular, achieving the same results as the tests here is not --
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-- a guarantee that an implementation complies with any Standard --
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-- or specification. The tests are not exhaustive. --
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-- --
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-- Please send comments, suggestions, and corrections to the author: --
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-- Mike Cowlishaw, IBM Fellow --
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-- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
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-- mfc@uk.ibm.com --
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------------------------------------------------------------------------
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version: 2.59
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extended: 1
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precision: 9
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rounding: half_up
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maxExponent: 384
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minexponent: -383
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nextm001 nextminus 0.999999995 -> 0.999999994
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nextm002 nextminus 0.999999996 -> 0.999999995
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nextm003 nextminus 0.999999997 -> 0.999999996
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nextm004 nextminus 0.999999998 -> 0.999999997
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nextm005 nextminus 0.999999999 -> 0.999999998
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nextm006 nextminus 1.00000000 -> 0.999999999
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nextm007 nextminus 1.0 -> 0.999999999
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nextm008 nextminus 1 -> 0.999999999
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nextm009 nextminus 1.00000001 -> 1.00000000
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nextm010 nextminus 1.00000002 -> 1.00000001
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nextm011 nextminus 1.00000003 -> 1.00000002
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nextm012 nextminus 1.00000004 -> 1.00000003
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nextm013 nextminus 1.00000005 -> 1.00000004
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nextm014 nextminus 1.00000006 -> 1.00000005
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nextm015 nextminus 1.00000007 -> 1.00000006
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nextm016 nextminus 1.00000008 -> 1.00000007
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nextm017 nextminus 1.00000009 -> 1.00000008
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nextm018 nextminus 1.00000010 -> 1.00000009
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nextm019 nextminus 1.00000011 -> 1.00000010
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nextm020 nextminus 1.00000012 -> 1.00000011
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nextm021 nextminus -0.999999995 -> -0.999999996
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nextm022 nextminus -0.999999996 -> -0.999999997
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nextm023 nextminus -0.999999997 -> -0.999999998
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nextm024 nextminus -0.999999998 -> -0.999999999
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nextm025 nextminus -0.999999999 -> -1.00000000
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nextm026 nextminus -1.00000000 -> -1.00000001
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nextm027 nextminus -1.0 -> -1.00000001
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nextm028 nextminus -1 -> -1.00000001
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nextm029 nextminus -1.00000001 -> -1.00000002
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nextm030 nextminus -1.00000002 -> -1.00000003
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nextm031 nextminus -1.00000003 -> -1.00000004
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nextm032 nextminus -1.00000004 -> -1.00000005
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nextm033 nextminus -1.00000005 -> -1.00000006
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nextm034 nextminus -1.00000006 -> -1.00000007
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nextm035 nextminus -1.00000007 -> -1.00000008
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nextm036 nextminus -1.00000008 -> -1.00000009
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nextm037 nextminus -1.00000009 -> -1.00000010
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nextm038 nextminus -1.00000010 -> -1.00000011
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nextm039 nextminus -1.00000011 -> -1.00000012
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-- input operand is >precision
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nextm041 nextminus 1.00000010998 -> 1.00000010
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nextm042 nextminus 1.00000010999 -> 1.00000010
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nextm043 nextminus 1.00000011000 -> 1.00000010
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nextm044 nextminus 1.00000011001 -> 1.00000011
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nextm045 nextminus 1.00000011002 -> 1.00000011
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nextm046 nextminus 1.00000011002 -> 1.00000011
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nextm047 nextminus 1.00000011052 -> 1.00000011
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nextm048 nextminus 1.00000011552 -> 1.00000011
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nextm049 nextminus -1.00000010998 -> -1.00000011
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nextm050 nextminus -1.00000010999 -> -1.00000011
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nextm051 nextminus -1.00000011000 -> -1.00000012
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nextm052 nextminus -1.00000011001 -> -1.00000012
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nextm053 nextminus -1.00000011002 -> -1.00000012
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nextm054 nextminus -1.00000011002 -> -1.00000012
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nextm055 nextminus -1.00000011052 -> -1.00000012
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nextm056 nextminus -1.00000011552 -> -1.00000012
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-- ultra-tiny inputs
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nextm060 nextminus 1E-99999 -> 0E-391
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nextm061 nextminus 1E-999999999 -> 0E-391
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nextm062 nextminus 1E-391 -> 0E-391
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nextm063 nextminus -1E-99999 -> -1E-391
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nextm064 nextminus -1E-999999999 -> -1E-391
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nextm065 nextminus -1E-391 -> -2E-391
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-- Zeros
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nextm100 nextminus -0 -> -1E-391
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nextm101 nextminus 0 -> -1E-391
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nextm102 nextminus 0.00 -> -1E-391
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nextm103 nextminus -0.00 -> -1E-391
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nextm104 nextminus 0E-300 -> -1E-391
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nextm105 nextminus 0E+300 -> -1E-391
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nextm106 nextminus 0E+30000 -> -1E-391
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nextm107 nextminus -0E+30000 -> -1E-391
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precision: 9
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maxExponent: 999
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minexponent: -999
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-- specials
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nextm150 nextminus Inf -> 9.99999999E+999
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nextm151 nextminus -Inf -> -Infinity
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nextm152 nextminus NaN -> NaN
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nextm153 nextminus sNaN -> NaN Invalid_operation
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nextm154 nextminus NaN77 -> NaN77
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nextm155 nextminus sNaN88 -> NaN88 Invalid_operation
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nextm156 nextminus -NaN -> -NaN
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nextm157 nextminus -sNaN -> -NaN Invalid_operation
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nextm158 nextminus -NaN77 -> -NaN77
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nextm159 nextminus -sNaN88 -> -NaN88 Invalid_operation
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-- Nmax, Nmin, Ntiny, subnormals
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nextm170 nextminus 9.99999999E+999 -> 9.99999998E+999
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nextm171 nextminus 9.99999998E+999 -> 9.99999997E+999
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nextm172 nextminus 1E-999 -> 9.9999999E-1000
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nextm173 nextminus 1.00000000E-999 -> 9.9999999E-1000
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nextm174 nextminus 9E-1007 -> 8E-1007
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nextm175 nextminus 9.9E-1006 -> 9.8E-1006
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nextm176 nextminus 9.9999E-1003 -> 9.9998E-1003
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nextm177 nextminus 9.9999999E-1000 -> 9.9999998E-1000
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nextm178 nextminus 9.9999998E-1000 -> 9.9999997E-1000
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nextm179 nextminus 9.9999997E-1000 -> 9.9999996E-1000
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nextm180 nextminus 0E-1007 -> -1E-1007
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nextm181 nextminus 1E-1007 -> 0E-1007
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nextm182 nextminus 2E-1007 -> 1E-1007
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nextm183 nextminus -0E-1007 -> -1E-1007
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nextm184 nextminus -1E-1007 -> -2E-1007
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nextm185 nextminus -2E-1007 -> -3E-1007
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nextm186 nextminus -10E-1007 -> -1.1E-1006
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nextm187 nextminus -100E-1007 -> -1.01E-1005
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nextm188 nextminus -100000E-1007 -> -1.00001E-1002
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nextm189 nextminus -1.0000E-999 -> -1.00000001E-999
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nextm190 nextminus -1.00000000E-999 -> -1.00000001E-999
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nextm191 nextminus -1E-999 -> -1.00000001E-999
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nextm192 nextminus -9.99999998E+999 -> -9.99999999E+999
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nextm193 nextminus -9.99999999E+999 -> -Infinity
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-- Null tests
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nextm900 nextminus # -> NaN Invalid_operation
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