You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
127 lines
6.7 KiB
127 lines
6.7 KiB
4 months ago
|
------------------------------------------------------------------------
|
||
|
|
-- 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
|
||
|
|
|