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cpython/Lib/test/decimaltestdata/ddNextMinus.decTest

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Merged the decimal-branch (revisions 54886 to 58140). Decimal is now fully updated to the latests Decimal Specification (v1.66) and the latests test cases (v2.56). Thanks to Mark Dickinson for all his help during this process.
2007-09-13 15:13:15 -03:00
------------------------------------------------------------------------
-- ddNextMinus.decTest -- decDouble next that is less [754r nextdown] --
Issue #3449: Update decimal module to use most recent specification (v. 1.68) and tests (v. 2.58) from IBM.
2008-07-27 03:39:07 -03:00
-- Copyright (c) IBM Corporation, 1981, 2008. All rights reserved. --
Merged the decimal-branch (revisions 54886 to 58140). Decimal is now fully updated to the latests Decimal Specification (v1.66) and the latests test cases (v2.56). Thanks to Mark Dickinson for all his help during this process.
2007-09-13 15:13:15 -03:00
------------------------------------------------------------------------
-- 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 --
------------------------------------------------------------------------
Merged revisions 75286 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75286 | mark.dickinson | 2009-10-08 17:28:39 +0100 (Thu, 08 Oct 2009) | 2 lines Update decimal test data to the most recent set from Mike Cowlishaw. ........
2009-10-27 14:02:46 -03:00
version: 2.59
Merged the decimal-branch (revisions 54886 to 58140). Decimal is now fully updated to the latests Decimal Specification (v1.66) and the latests test cases (v2.56). Thanks to Mark Dickinson for all his help during this process.
2007-09-13 15:13:15 -03:00
-- 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