|
1 ------------------------------------------------------------------------ |
|
2 -- ddLogB.decTest -- integral 754r adjusted exponent, for decDoubles -- |
|
3 -- Copyright (c) IBM Corporation, 2005, 2007. All rights reserved. -- |
|
4 ------------------------------------------------------------------------ |
|
5 -- Please see the document "General Decimal Arithmetic Testcases" -- |
|
6 -- at http://www2.hursley.ibm.com/decimal for the description of -- |
|
7 -- these testcases. -- |
|
8 -- -- |
|
9 -- These testcases are experimental ('beta' versions), and they -- |
|
10 -- may contain errors. They are offered on an as-is basis. In -- |
|
11 -- particular, achieving the same results as the tests here is not -- |
|
12 -- a guarantee that an implementation complies with any Standard -- |
|
13 -- or specification. The tests are not exhaustive. -- |
|
14 -- -- |
|
15 -- Please send comments, suggestions, and corrections to the author: -- |
|
16 -- Mike Cowlishaw, IBM Fellow -- |
|
17 -- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK -- |
|
18 -- mfc@uk.ibm.com -- |
|
19 ------------------------------------------------------------------------ |
|
20 version: 2.57 |
|
21 |
|
22 precision: 16 |
|
23 maxExponent: 384 |
|
24 minExponent: -383 |
|
25 extended: 1 |
|
26 clamp: 1 |
|
27 rounding: half_even |
|
28 |
|
29 -- basics |
|
30 ddlogb000 logb 0 -> -Infinity Division_by_zero |
|
31 ddlogb001 logb 1E-398 -> -398 |
|
32 ddlogb002 logb 1E-383 -> -383 |
|
33 ddlogb003 logb 0.001 -> -3 |
|
34 ddlogb004 logb 0.03 -> -2 |
|
35 ddlogb005 logb 1 -> 0 |
|
36 ddlogb006 logb 2 -> 0 |
|
37 ddlogb007 logb 2.5 -> 0 |
|
38 ddlogb008 logb 2.500 -> 0 |
|
39 ddlogb009 logb 10 -> 1 |
|
40 ddlogb010 logb 70 -> 1 |
|
41 ddlogb011 logb 100 -> 2 |
|
42 ddlogb012 logb 333 -> 2 |
|
43 ddlogb013 logb 9E+384 -> 384 |
|
44 ddlogb014 logb +Infinity -> Infinity |
|
45 |
|
46 -- negatives appear to be treated as positives |
|
47 ddlogb021 logb -0 -> -Infinity Division_by_zero |
|
48 ddlogb022 logb -1E-398 -> -398 |
|
49 ddlogb023 logb -9E-383 -> -383 |
|
50 ddlogb024 logb -0.001 -> -3 |
|
51 ddlogb025 logb -1 -> 0 |
|
52 ddlogb026 logb -2 -> 0 |
|
53 ddlogb027 logb -10 -> 1 |
|
54 ddlogb028 logb -70 -> 1 |
|
55 ddlogb029 logb -100 -> 2 |
|
56 ddlogb030 logb -9E+384 -> 384 |
|
57 ddlogb031 logb -Infinity -> Infinity |
|
58 |
|
59 -- zeros |
|
60 ddlogb111 logb 0 -> -Infinity Division_by_zero |
|
61 ddlogb112 logb -0 -> -Infinity Division_by_zero |
|
62 ddlogb113 logb 0E+4 -> -Infinity Division_by_zero |
|
63 ddlogb114 logb -0E+4 -> -Infinity Division_by_zero |
|
64 ddlogb115 logb 0.0000 -> -Infinity Division_by_zero |
|
65 ddlogb116 logb -0.0000 -> -Infinity Division_by_zero |
|
66 ddlogb117 logb 0E-141 -> -Infinity Division_by_zero |
|
67 ddlogb118 logb -0E-141 -> -Infinity Division_by_zero |
|
68 |
|
69 -- full coefficients, alternating bits |
|
70 ddlogb121 logb 268268268 -> 8 |
|
71 ddlogb122 logb -268268268 -> 8 |
|
72 ddlogb123 logb 134134134 -> 8 |
|
73 ddlogb124 logb -134134134 -> 8 |
|
74 |
|
75 -- Nmax, Nmin, Ntiny |
|
76 ddlogb131 logb 9.999999999999999E+384 -> 384 |
|
77 ddlogb132 logb 1E-383 -> -383 |
|
78 ddlogb133 logb 1.000000000000000E-383 -> -383 |
|
79 ddlogb134 logb 1E-398 -> -398 |
|
80 |
|
81 ddlogb135 logb -1E-398 -> -398 |
|
82 ddlogb136 logb -1.000000000000000E-383 -> -383 |
|
83 ddlogb137 logb -1E-383 -> -383 |
|
84 ddlogb138 logb -9.999999999999999E+384 -> 384 |
|
85 |
|
86 -- ones |
|
87 ddlogb0061 logb 1 -> 0 |
|
88 ddlogb0062 logb 1.0 -> 0 |
|
89 ddlogb0063 logb 1.000000000000000 -> 0 |
|
90 |
|
91 -- notable cases -- exact powers of 10 |
|
92 ddlogb1100 logb 1 -> 0 |
|
93 ddlogb1101 logb 10 -> 1 |
|
94 ddlogb1102 logb 100 -> 2 |
|
95 ddlogb1103 logb 1000 -> 3 |
|
96 ddlogb1104 logb 10000 -> 4 |
|
97 ddlogb1105 logb 100000 -> 5 |
|
98 ddlogb1106 logb 1000000 -> 6 |
|
99 ddlogb1107 logb 10000000 -> 7 |
|
100 ddlogb1108 logb 100000000 -> 8 |
|
101 ddlogb1109 logb 1000000000 -> 9 |
|
102 ddlogb1110 logb 10000000000 -> 10 |
|
103 ddlogb1111 logb 100000000000 -> 11 |
|
104 ddlogb1112 logb 1000000000000 -> 12 |
|
105 ddlogb1113 logb 0.00000000001 -> -11 |
|
106 ddlogb1114 logb 0.0000000001 -> -10 |
|
107 ddlogb1115 logb 0.000000001 -> -9 |
|
108 ddlogb1116 logb 0.00000001 -> -8 |
|
109 ddlogb1117 logb 0.0000001 -> -7 |
|
110 ddlogb1118 logb 0.000001 -> -6 |
|
111 ddlogb1119 logb 0.00001 -> -5 |
|
112 ddlogb1120 logb 0.0001 -> -4 |
|
113 ddlogb1121 logb 0.001 -> -3 |
|
114 ddlogb1122 logb 0.01 -> -2 |
|
115 ddlogb1123 logb 0.1 -> -1 |
|
116 ddlogb1124 logb 1E-99 -> -99 |
|
117 ddlogb1125 logb 1E-100 -> -100 |
|
118 ddlogb1127 logb 1E-299 -> -299 |
|
119 ddlogb1126 logb 1E-383 -> -383 |
|
120 |
|
121 -- suggestions from Ilan Nehama |
|
122 ddlogb1400 logb 10E-3 -> -2 |
|
123 ddlogb1401 logb 10E-2 -> -1 |
|
124 ddlogb1402 logb 100E-2 -> 0 |
|
125 ddlogb1403 logb 1000E-2 -> 1 |
|
126 ddlogb1404 logb 10000E-2 -> 2 |
|
127 ddlogb1405 logb 10E-1 -> 0 |
|
128 ddlogb1406 logb 100E-1 -> 1 |
|
129 ddlogb1407 logb 1000E-1 -> 2 |
|
130 ddlogb1408 logb 10000E-1 -> 3 |
|
131 ddlogb1409 logb 10E0 -> 1 |
|
132 ddlogb1410 logb 100E0 -> 2 |
|
133 ddlogb1411 logb 1000E0 -> 3 |
|
134 ddlogb1412 logb 10000E0 -> 4 |
|
135 ddlogb1413 logb 10E1 -> 2 |
|
136 ddlogb1414 logb 100E1 -> 3 |
|
137 ddlogb1415 logb 1000E1 -> 4 |
|
138 ddlogb1416 logb 10000E1 -> 5 |
|
139 ddlogb1417 logb 10E2 -> 3 |
|
140 ddlogb1418 logb 100E2 -> 4 |
|
141 ddlogb1419 logb 1000E2 -> 5 |
|
142 ddlogb1420 logb 10000E2 -> 6 |
|
143 |
|
144 -- special values |
|
145 ddlogb820 logb Infinity -> Infinity |
|
146 ddlogb821 logb 0 -> -Infinity Division_by_zero |
|
147 ddlogb822 logb NaN -> NaN |
|
148 ddlogb823 logb sNaN -> NaN Invalid_operation |
|
149 -- propagating NaNs |
|
150 ddlogb824 logb sNaN123 -> NaN123 Invalid_operation |
|
151 ddlogb825 logb -sNaN321 -> -NaN321 Invalid_operation |
|
152 ddlogb826 logb NaN456 -> NaN456 |
|
153 ddlogb827 logb -NaN654 -> -NaN654 |
|
154 ddlogb828 logb NaN1 -> NaN1 |
|
155 |
|
156 -- Null test |
|
157 ddlogb900 logb # -> NaN Invalid_operation |
|
158 |
|
159 |