1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
------------------------------------------------------------------------
-- dqNextMinus.decTest -- decQuad 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: 2.58
-- All operands and results are decQuads.
extended: 1
clamp: 1
precision: 34
maxExponent: 6144
minExponent: -6143
rounding: half_even
dqnextm001 nextminus 0.9999999999999999999999999999999995 -> 0.9999999999999999999999999999999994
dqnextm002 nextminus 0.9999999999999999999999999999999996 -> 0.9999999999999999999999999999999995
dqnextm003 nextminus 0.9999999999999999999999999999999997 -> 0.9999999999999999999999999999999996
dqnextm004 nextminus 0.9999999999999999999999999999999998 -> 0.9999999999999999999999999999999997
dqnextm005 nextminus 0.9999999999999999999999999999999999 -> 0.9999999999999999999999999999999998
dqnextm006 nextminus 1.000000000000000000000000000000000 -> 0.9999999999999999999999999999999999
dqnextm007 nextminus 1.0 -> 0.9999999999999999999999999999999999
dqnextm008 nextminus 1 -> 0.9999999999999999999999999999999999
dqnextm009 nextminus 1.000000000000000000000000000000001 -> 1.000000000000000000000000000000000
dqnextm010 nextminus 1.000000000000000000000000000000002 -> 1.000000000000000000000000000000001
dqnextm011 nextminus 1.000000000000000000000000000000003 -> 1.000000000000000000000000000000002
dqnextm012 nextminus 1.000000000000000000000000000000004 -> 1.000000000000000000000000000000003
dqnextm013 nextminus 1.000000000000000000000000000000005 -> 1.000000000000000000000000000000004
dqnextm014 nextminus 1.000000000000000000000000000000006 -> 1.000000000000000000000000000000005
dqnextm015 nextminus 1.000000000000000000000000000000007 -> 1.000000000000000000000000000000006
dqnextm016 nextminus 1.000000000000000000000000000000008 -> 1.000000000000000000000000000000007
dqnextm017 nextminus 1.000000000000000000000000000000009 -> 1.000000000000000000000000000000008
dqnextm018 nextminus 1.000000000000000000000000000000010 -> 1.000000000000000000000000000000009
dqnextm019 nextminus 1.000000000000000000000000000000011 -> 1.000000000000000000000000000000010
dqnextm020 nextminus 1.000000000000000000000000000000012 -> 1.000000000000000000000000000000011
dqnextm021 nextminus -0.9999999999999999999999999999999995 -> -0.9999999999999999999999999999999996
dqnextm022 nextminus -0.9999999999999999999999999999999996 -> -0.9999999999999999999999999999999997
dqnextm023 nextminus -0.9999999999999999999999999999999997 -> -0.9999999999999999999999999999999998
dqnextm024 nextminus -0.9999999999999999999999999999999998 -> -0.9999999999999999999999999999999999
dqnextm025 nextminus -0.9999999999999999999999999999999999 -> -1.000000000000000000000000000000000
dqnextm026 nextminus -1.000000000000000000000000000000000 -> -1.000000000000000000000000000000001
dqnextm027 nextminus -1.0 -> -1.000000000000000000000000000000001
dqnextm028 nextminus -1 -> -1.000000000000000000000000000000001
dqnextm029 nextminus -1.000000000000000000000000000000001 -> -1.000000000000000000000000000000002
dqnextm030 nextminus -1.000000000000000000000000000000002 -> -1.000000000000000000000000000000003
dqnextm031 nextminus -1.000000000000000000000000000000003 -> -1.000000000000000000000000000000004
dqnextm032 nextminus -1.000000000000000000000000000000004 -> -1.000000000000000000000000000000005
dqnextm033 nextminus -1.000000000000000000000000000000005 -> -1.000000000000000000000000000000006
dqnextm034 nextminus -1.000000000000000000000000000000006 -> -1.000000000000000000000000000000007
dqnextm035 nextminus -1.000000000000000000000000000000007 -> -1.000000000000000000000000000000008
dqnextm036 nextminus -1.000000000000000000000000000000008 -> -1.000000000000000000000000000000009
dqnextm037 nextminus -1.000000000000000000000000000000009 -> -1.000000000000000000000000000000010
dqnextm038 nextminus -1.000000000000000000000000000000010 -> -1.000000000000000000000000000000011
dqnextm039 nextminus -1.000000000000000000000000000000011 -> -1.000000000000000000000000000000012
-- ultra-tiny inputs
dqnextm062 nextminus 1E-6176 -> 0E-6176
dqnextm065 nextminus -1E-6176 -> -2E-6176
-- Zeros
dqnextm100 nextminus -0 -> -1E-6176
dqnextm101 nextminus 0 -> -1E-6176
dqnextm102 nextminus 0.00 -> -1E-6176
dqnextm103 nextminus -0.00 -> -1E-6176
dqnextm104 nextminus 0E-300 -> -1E-6176
dqnextm105 nextminus 0E+300 -> -1E-6176
dqnextm106 nextminus 0E+30000 -> -1E-6176
dqnextm107 nextminus -0E+30000 -> -1E-6176
-- specials
dqnextm150 nextminus Inf -> 9.999999999999999999999999999999999E+6144
dqnextm151 nextminus -Inf -> -Infinity
dqnextm152 nextminus NaN -> NaN
dqnextm153 nextminus sNaN -> NaN Invalid_operation
dqnextm154 nextminus NaN77 -> NaN77
dqnextm155 nextminus sNaN88 -> NaN88 Invalid_operation
dqnextm156 nextminus -NaN -> -NaN
dqnextm157 nextminus -sNaN -> -NaN Invalid_operation
dqnextm158 nextminus -NaN77 -> -NaN77
dqnextm159 nextminus -sNaN88 -> -NaN88 Invalid_operation
-- Nmax, Nmin, Ntiny, subnormals
dqnextm170 nextminus 9.999999999999999999999999999999999E+6144 -> 9.999999999999999999999999999999998E+6144
dqnextm171 nextminus 9.999999999999999999999999999999998E+6144 -> 9.999999999999999999999999999999997E+6144
dqnextm172 nextminus 1E-6143 -> 9.99999999999999999999999999999999E-6144
dqnextm173 nextminus 1.000000000000000000000000000000000E-6143 -> 9.99999999999999999999999999999999E-6144
dqnextm174 nextminus 9E-6176 -> 8E-6176
dqnextm175 nextminus 9.9E-6175 -> 9.8E-6175
dqnextm176 nextminus 9.99999999999999999999999999999E-6147 -> 9.99999999999999999999999999998E-6147
dqnextm177 nextminus 9.99999999999999999999999999999999E-6144 -> 9.99999999999999999999999999999998E-6144
dqnextm178 nextminus 9.99999999999999999999999999999998E-6144 -> 9.99999999999999999999999999999997E-6144
dqnextm179 nextminus 9.99999999999999999999999999999997E-6144 -> 9.99999999999999999999999999999996E-6144
dqnextm180 nextminus 0E-6176 -> -1E-6176
dqnextm181 nextminus 1E-6176 -> 0E-6176
dqnextm182 nextminus 2E-6176 -> 1E-6176
dqnextm183 nextminus -0E-6176 -> -1E-6176
dqnextm184 nextminus -1E-6176 -> -2E-6176
dqnextm185 nextminus -2E-6176 -> -3E-6176
dqnextm186 nextminus -10E-6176 -> -1.1E-6175
dqnextm187 nextminus -100E-6176 -> -1.01E-6174
dqnextm188 nextminus -100000E-6176 -> -1.00001E-6171
dqnextm189 nextminus -1.00000000000000000000000000000E-6143 -> -1.000000000000000000000000000000001E-6143
dqnextm190 nextminus -1.000000000000000000000000000000000E-6143 -> -1.000000000000000000000000000000001E-6143
dqnextm191 nextminus -1E-6143 -> -1.000000000000000000000000000000001E-6143
dqnextm192 nextminus -9.999999999999999999999999999999998E+6144 -> -9.999999999999999999999999999999999E+6144
dqnextm193 nextminus -9.999999999999999999999999999999999E+6144 -> -Infinity
-- Null tests
dqnextm900 nextminus # -> NaN Invalid_operation
|
