mirror of https://github.com/python/cpython
127 lines
8.4 KiB
Plaintext
127 lines
8.4 KiB
Plaintext
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------------------------------------------------------------------------
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-- dqNextMinus.decTest -- decQuad next that is less [754r nextdown] --
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-- Copyright (c) IBM Corporation, 1981, 2007. 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: 2.56
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-- All operands and results are decQuads.
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extended: 1
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clamp: 1
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precision: 34
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maxExponent: 6144
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minExponent: -6143
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rounding: half_even
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dqnextm001 nextminus 0.9999999999999999999999999999999995 -> 0.9999999999999999999999999999999994
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dqnextm002 nextminus 0.9999999999999999999999999999999996 -> 0.9999999999999999999999999999999995
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dqnextm003 nextminus 0.9999999999999999999999999999999997 -> 0.9999999999999999999999999999999996
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dqnextm004 nextminus 0.9999999999999999999999999999999998 -> 0.9999999999999999999999999999999997
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dqnextm005 nextminus 0.9999999999999999999999999999999999 -> 0.9999999999999999999999999999999998
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dqnextm006 nextminus 1.000000000000000000000000000000000 -> 0.9999999999999999999999999999999999
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dqnextm007 nextminus 1.0 -> 0.9999999999999999999999999999999999
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dqnextm008 nextminus 1 -> 0.9999999999999999999999999999999999
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dqnextm009 nextminus 1.000000000000000000000000000000001 -> 1.000000000000000000000000000000000
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dqnextm010 nextminus 1.000000000000000000000000000000002 -> 1.000000000000000000000000000000001
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dqnextm011 nextminus 1.000000000000000000000000000000003 -> 1.000000000000000000000000000000002
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dqnextm012 nextminus 1.000000000000000000000000000000004 -> 1.000000000000000000000000000000003
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dqnextm013 nextminus 1.000000000000000000000000000000005 -> 1.000000000000000000000000000000004
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dqnextm014 nextminus 1.000000000000000000000000000000006 -> 1.000000000000000000000000000000005
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dqnextm015 nextminus 1.000000000000000000000000000000007 -> 1.000000000000000000000000000000006
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dqnextm016 nextminus 1.000000000000000000000000000000008 -> 1.000000000000000000000000000000007
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dqnextm017 nextminus 1.000000000000000000000000000000009 -> 1.000000000000000000000000000000008
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dqnextm018 nextminus 1.000000000000000000000000000000010 -> 1.000000000000000000000000000000009
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dqnextm019 nextminus 1.000000000000000000000000000000011 -> 1.000000000000000000000000000000010
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dqnextm020 nextminus 1.000000000000000000000000000000012 -> 1.000000000000000000000000000000011
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dqnextm021 nextminus -0.9999999999999999999999999999999995 -> -0.9999999999999999999999999999999996
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dqnextm022 nextminus -0.9999999999999999999999999999999996 -> -0.9999999999999999999999999999999997
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dqnextm023 nextminus -0.9999999999999999999999999999999997 -> -0.9999999999999999999999999999999998
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dqnextm024 nextminus -0.9999999999999999999999999999999998 -> -0.9999999999999999999999999999999999
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dqnextm025 nextminus -0.9999999999999999999999999999999999 -> -1.000000000000000000000000000000000
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dqnextm026 nextminus -1.000000000000000000000000000000000 -> -1.000000000000000000000000000000001
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dqnextm027 nextminus -1.0 -> -1.000000000000000000000000000000001
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dqnextm028 nextminus -1 -> -1.000000000000000000000000000000001
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dqnextm029 nextminus -1.000000000000000000000000000000001 -> -1.000000000000000000000000000000002
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dqnextm030 nextminus -1.000000000000000000000000000000002 -> -1.000000000000000000000000000000003
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dqnextm031 nextminus -1.000000000000000000000000000000003 -> -1.000000000000000000000000000000004
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dqnextm032 nextminus -1.000000000000000000000000000000004 -> -1.000000000000000000000000000000005
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dqnextm033 nextminus -1.000000000000000000000000000000005 -> -1.000000000000000000000000000000006
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dqnextm034 nextminus -1.000000000000000000000000000000006 -> -1.000000000000000000000000000000007
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dqnextm035 nextminus -1.000000000000000000000000000000007 -> -1.000000000000000000000000000000008
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dqnextm036 nextminus -1.000000000000000000000000000000008 -> -1.000000000000000000000000000000009
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dqnextm037 nextminus -1.000000000000000000000000000000009 -> -1.000000000000000000000000000000010
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dqnextm038 nextminus -1.000000000000000000000000000000010 -> -1.000000000000000000000000000000011
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dqnextm039 nextminus -1.000000000000000000000000000000011 -> -1.000000000000000000000000000000012
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-- ultra-tiny inputs
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dqnextm062 nextminus 1E-6176 -> 0E-6176
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dqnextm065 nextminus -1E-6176 -> -2E-6176
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-- Zeros
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dqnextm100 nextminus -0 -> -1E-6176
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dqnextm101 nextminus 0 -> -1E-6176
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dqnextm102 nextminus 0.00 -> -1E-6176
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dqnextm103 nextminus -0.00 -> -1E-6176
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dqnextm104 nextminus 0E-300 -> -1E-6176
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dqnextm105 nextminus 0E+300 -> -1E-6176
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dqnextm106 nextminus 0E+30000 -> -1E-6176
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dqnextm107 nextminus -0E+30000 -> -1E-6176
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-- specials
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dqnextm150 nextminus Inf -> 9.999999999999999999999999999999999E+6144
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dqnextm151 nextminus -Inf -> -Infinity
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dqnextm152 nextminus NaN -> NaN
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dqnextm153 nextminus sNaN -> NaN Invalid_operation
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dqnextm154 nextminus NaN77 -> NaN77
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dqnextm155 nextminus sNaN88 -> NaN88 Invalid_operation
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dqnextm156 nextminus -NaN -> -NaN
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dqnextm157 nextminus -sNaN -> -NaN Invalid_operation
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dqnextm158 nextminus -NaN77 -> -NaN77
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dqnextm159 nextminus -sNaN88 -> -NaN88 Invalid_operation
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-- Nmax, Nmin, Ntiny, subnormals
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dqnextm170 nextminus 9.999999999999999999999999999999999E+6144 -> 9.999999999999999999999999999999998E+6144
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dqnextm171 nextminus 9.999999999999999999999999999999998E+6144 -> 9.999999999999999999999999999999997E+6144
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dqnextm172 nextminus 1E-6143 -> 9.99999999999999999999999999999999E-6144
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dqnextm173 nextminus 1.000000000000000000000000000000000E-6143 -> 9.99999999999999999999999999999999E-6144
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dqnextm174 nextminus 9E-6176 -> 8E-6176
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dqnextm175 nextminus 9.9E-6175 -> 9.8E-6175
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dqnextm176 nextminus 9.99999999999999999999999999999E-6147 -> 9.99999999999999999999999999998E-6147
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dqnextm177 nextminus 9.99999999999999999999999999999999E-6144 -> 9.99999999999999999999999999999998E-6144
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dqnextm178 nextminus 9.99999999999999999999999999999998E-6144 -> 9.99999999999999999999999999999997E-6144
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dqnextm179 nextminus 9.99999999999999999999999999999997E-6144 -> 9.99999999999999999999999999999996E-6144
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dqnextm180 nextminus 0E-6176 -> -1E-6176
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dqnextm181 nextminus 1E-6176 -> 0E-6176
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dqnextm182 nextminus 2E-6176 -> 1E-6176
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dqnextm183 nextminus -0E-6176 -> -1E-6176
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dqnextm184 nextminus -1E-6176 -> -2E-6176
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dqnextm185 nextminus -2E-6176 -> -3E-6176
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dqnextm186 nextminus -10E-6176 -> -1.1E-6175
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dqnextm187 nextminus -100E-6176 -> -1.01E-6174
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dqnextm188 nextminus -100000E-6176 -> -1.00001E-6171
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dqnextm189 nextminus -1.00000000000000000000000000000E-6143 -> -1.000000000000000000000000000000001E-6143
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dqnextm190 nextminus -1.000000000000000000000000000000000E-6143 -> -1.000000000000000000000000000000001E-6143
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dqnextm191 nextminus -1E-6143 -> -1.000000000000000000000000000000001E-6143
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dqnextm192 nextminus -9.999999999999999999999999999999998E+6144 -> -9.999999999999999999999999999999999E+6144
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dqnextm193 nextminus -9.999999999999999999999999999999999E+6144 -> -Infinity
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-- Null tests
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dqnextm900 nextminus # -> NaN Invalid_operation
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