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4710c53d | 1 | ------------------------------------------------------------------------\r |
2 | -- ddLogB.decTest -- integral 754r adjusted exponent, for decDoubles --\r | |
3 | -- Copyright (c) IBM Corporation, 2005, 2008. All rights reserved. --\r | |
4 | ------------------------------------------------------------------------\r | |
5 | -- Please see the document "General Decimal Arithmetic Testcases" --\r | |
6 | -- at http://www2.hursley.ibm.com/decimal for the description of --\r | |
7 | -- these testcases. --\r | |
8 | -- --\r | |
9 | -- These testcases are experimental ('beta' versions), and they --\r | |
10 | -- may contain errors. They are offered on an as-is basis. In --\r | |
11 | -- particular, achieving the same results as the tests here is not --\r | |
12 | -- a guarantee that an implementation complies with any Standard --\r | |
13 | -- or specification. The tests are not exhaustive. --\r | |
14 | -- --\r | |
15 | -- Please send comments, suggestions, and corrections to the author: --\r | |
16 | -- Mike Cowlishaw, IBM Fellow --\r | |
17 | -- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --\r | |
18 | -- mfc@uk.ibm.com --\r | |
19 | ------------------------------------------------------------------------\r | |
20 | version: 2.59\r | |
21 | \r | |
22 | precision: 16\r | |
23 | maxExponent: 384\r | |
24 | minExponent: -383\r | |
25 | extended: 1\r | |
26 | clamp: 1\r | |
27 | rounding: half_even\r | |
28 | \r | |
29 | -- basics\r | |
30 | ddlogb000 logb 0 -> -Infinity Division_by_zero\r | |
31 | ddlogb001 logb 1E-398 -> -398\r | |
32 | ddlogb002 logb 1E-383 -> -383\r | |
33 | ddlogb003 logb 0.001 -> -3\r | |
34 | ddlogb004 logb 0.03 -> -2\r | |
35 | ddlogb005 logb 1 -> 0\r | |
36 | ddlogb006 logb 2 -> 0\r | |
37 | ddlogb007 logb 2.5 -> 0\r | |
38 | ddlogb008 logb 2.500 -> 0\r | |
39 | ddlogb009 logb 10 -> 1\r | |
40 | ddlogb010 logb 70 -> 1\r | |
41 | ddlogb011 logb 100 -> 2\r | |
42 | ddlogb012 logb 333 -> 2\r | |
43 | ddlogb013 logb 9E+384 -> 384\r | |
44 | ddlogb014 logb +Infinity -> Infinity\r | |
45 | \r | |
46 | -- negatives appear to be treated as positives\r | |
47 | ddlogb021 logb -0 -> -Infinity Division_by_zero\r | |
48 | ddlogb022 logb -1E-398 -> -398\r | |
49 | ddlogb023 logb -9E-383 -> -383\r | |
50 | ddlogb024 logb -0.001 -> -3\r | |
51 | ddlogb025 logb -1 -> 0\r | |
52 | ddlogb026 logb -2 -> 0\r | |
53 | ddlogb027 logb -10 -> 1\r | |
54 | ddlogb028 logb -70 -> 1\r | |
55 | ddlogb029 logb -100 -> 2\r | |
56 | ddlogb030 logb -9E+384 -> 384\r | |
57 | ddlogb031 logb -Infinity -> Infinity\r | |
58 | \r | |
59 | -- zeros\r | |
60 | ddlogb111 logb 0 -> -Infinity Division_by_zero\r | |
61 | ddlogb112 logb -0 -> -Infinity Division_by_zero\r | |
62 | ddlogb113 logb 0E+4 -> -Infinity Division_by_zero\r | |
63 | ddlogb114 logb -0E+4 -> -Infinity Division_by_zero\r | |
64 | ddlogb115 logb 0.0000 -> -Infinity Division_by_zero\r | |
65 | ddlogb116 logb -0.0000 -> -Infinity Division_by_zero\r | |
66 | ddlogb117 logb 0E-141 -> -Infinity Division_by_zero\r | |
67 | ddlogb118 logb -0E-141 -> -Infinity Division_by_zero\r | |
68 | \r | |
69 | -- full coefficients, alternating bits\r | |
70 | ddlogb121 logb 268268268 -> 8\r | |
71 | ddlogb122 logb -268268268 -> 8\r | |
72 | ddlogb123 logb 134134134 -> 8\r | |
73 | ddlogb124 logb -134134134 -> 8\r | |
74 | \r | |
75 | -- Nmax, Nmin, Ntiny\r | |
76 | ddlogb131 logb 9.999999999999999E+384 -> 384\r | |
77 | ddlogb132 logb 1E-383 -> -383\r | |
78 | ddlogb133 logb 1.000000000000000E-383 -> -383\r | |
79 | ddlogb134 logb 1E-398 -> -398\r | |
80 | \r | |
81 | ddlogb135 logb -1E-398 -> -398\r | |
82 | ddlogb136 logb -1.000000000000000E-383 -> -383\r | |
83 | ddlogb137 logb -1E-383 -> -383\r | |
84 | ddlogb138 logb -9.999999999999999E+384 -> 384\r | |
85 | \r | |
86 | -- ones\r | |
87 | ddlogb0061 logb 1 -> 0\r | |
88 | ddlogb0062 logb 1.0 -> 0\r | |
89 | ddlogb0063 logb 1.000000000000000 -> 0\r | |
90 | \r | |
91 | -- notable cases -- exact powers of 10\r | |
92 | ddlogb1100 logb 1 -> 0\r | |
93 | ddlogb1101 logb 10 -> 1\r | |
94 | ddlogb1102 logb 100 -> 2\r | |
95 | ddlogb1103 logb 1000 -> 3\r | |
96 | ddlogb1104 logb 10000 -> 4\r | |
97 | ddlogb1105 logb 100000 -> 5\r | |
98 | ddlogb1106 logb 1000000 -> 6\r | |
99 | ddlogb1107 logb 10000000 -> 7\r | |
100 | ddlogb1108 logb 100000000 -> 8\r | |
101 | ddlogb1109 logb 1000000000 -> 9\r | |
102 | ddlogb1110 logb 10000000000 -> 10\r | |
103 | ddlogb1111 logb 100000000000 -> 11\r | |
104 | ddlogb1112 logb 1000000000000 -> 12\r | |
105 | ddlogb1113 logb 0.00000000001 -> -11\r | |
106 | ddlogb1114 logb 0.0000000001 -> -10\r | |
107 | ddlogb1115 logb 0.000000001 -> -9\r | |
108 | ddlogb1116 logb 0.00000001 -> -8\r | |
109 | ddlogb1117 logb 0.0000001 -> -7\r | |
110 | ddlogb1118 logb 0.000001 -> -6\r | |
111 | ddlogb1119 logb 0.00001 -> -5\r | |
112 | ddlogb1120 logb 0.0001 -> -4\r | |
113 | ddlogb1121 logb 0.001 -> -3\r | |
114 | ddlogb1122 logb 0.01 -> -2\r | |
115 | ddlogb1123 logb 0.1 -> -1\r | |
116 | ddlogb1124 logb 1E-99 -> -99\r | |
117 | ddlogb1125 logb 1E-100 -> -100\r | |
118 | ddlogb1127 logb 1E-299 -> -299\r | |
119 | ddlogb1126 logb 1E-383 -> -383\r | |
120 | \r | |
121 | -- suggestions from Ilan Nehama\r | |
122 | ddlogb1400 logb 10E-3 -> -2\r | |
123 | ddlogb1401 logb 10E-2 -> -1\r | |
124 | ddlogb1402 logb 100E-2 -> 0\r | |
125 | ddlogb1403 logb 1000E-2 -> 1\r | |
126 | ddlogb1404 logb 10000E-2 -> 2\r | |
127 | ddlogb1405 logb 10E-1 -> 0\r | |
128 | ddlogb1406 logb 100E-1 -> 1\r | |
129 | ddlogb1407 logb 1000E-1 -> 2\r | |
130 | ddlogb1408 logb 10000E-1 -> 3\r | |
131 | ddlogb1409 logb 10E0 -> 1\r | |
132 | ddlogb1410 logb 100E0 -> 2\r | |
133 | ddlogb1411 logb 1000E0 -> 3\r | |
134 | ddlogb1412 logb 10000E0 -> 4\r | |
135 | ddlogb1413 logb 10E1 -> 2\r | |
136 | ddlogb1414 logb 100E1 -> 3\r | |
137 | ddlogb1415 logb 1000E1 -> 4\r | |
138 | ddlogb1416 logb 10000E1 -> 5\r | |
139 | ddlogb1417 logb 10E2 -> 3\r | |
140 | ddlogb1418 logb 100E2 -> 4\r | |
141 | ddlogb1419 logb 1000E2 -> 5\r | |
142 | ddlogb1420 logb 10000E2 -> 6\r | |
143 | \r | |
144 | -- special values\r | |
145 | ddlogb820 logb Infinity -> Infinity\r | |
146 | ddlogb821 logb 0 -> -Infinity Division_by_zero\r | |
147 | ddlogb822 logb NaN -> NaN\r | |
148 | ddlogb823 logb sNaN -> NaN Invalid_operation\r | |
149 | -- propagating NaNs\r | |
150 | ddlogb824 logb sNaN123 -> NaN123 Invalid_operation\r | |
151 | ddlogb825 logb -sNaN321 -> -NaN321 Invalid_operation\r | |
152 | ddlogb826 logb NaN456 -> NaN456\r | |
153 | ddlogb827 logb -NaN654 -> -NaN654\r | |
154 | ddlogb828 logb NaN1 -> NaN1\r | |
155 | \r | |
156 | -- Null test\r | |
157 | ddlogb900 logb # -> NaN Invalid_operation\r | |
158 | \r | |
159 | \r |