| ------------------------------------------------------------------------ |
| -- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads -- |
| -- Copyright (c) IBM Corporation, 2005, 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 |
| |
| extended: 1 |
| clamp: 1 |
| precision: 34 |
| maxExponent: 6144 |
| minExponent: -6143 |
| rounding: half_even |
| |
| -- basics |
| dqlogb000 logb 0 -> -Infinity Division_by_zero |
| dqlogb001 logb 1E-6176 -> -6176 |
| dqlogb002 logb 1E-6143 -> -6143 |
| dqlogb003 logb 0.001 -> -3 |
| dqlogb004 logb 0.03 -> -2 |
| dqlogb005 logb 1 -> 0 |
| dqlogb006 logb 2 -> 0 |
| dqlogb007 logb 2.5 -> 0 |
| dqlogb008 logb 2.50 -> 0 |
| dqlogb009 logb 2.500 -> 0 |
| dqlogb010 logb 10 -> 1 |
| dqlogb011 logb 70 -> 1 |
| dqlogb012 logb 100 -> 2 |
| dqlogb013 logb 250 -> 2 |
| dqlogb014 logb 9E+6144 -> 6144 |
| dqlogb015 logb +Infinity -> Infinity |
| |
| -- negatives appear to be treated as positives |
| dqlogb021 logb -0 -> -Infinity Division_by_zero |
| dqlogb022 logb -1E-6176 -> -6176 |
| dqlogb023 logb -9E-6143 -> -6143 |
| dqlogb024 logb -0.001 -> -3 |
| dqlogb025 logb -1 -> 0 |
| dqlogb026 logb -2 -> 0 |
| dqlogb027 logb -10 -> 1 |
| dqlogb028 logb -70 -> 1 |
| dqlogb029 logb -100 -> 2 |
| dqlogb030 logb -9E+6144 -> 6144 |
| dqlogb031 logb -Infinity -> Infinity |
| |
| -- zeros |
| dqlogb111 logb 0 -> -Infinity Division_by_zero |
| dqlogb112 logb -0 -> -Infinity Division_by_zero |
| dqlogb113 logb 0E+4 -> -Infinity Division_by_zero |
| dqlogb114 logb -0E+4 -> -Infinity Division_by_zero |
| dqlogb115 logb 0.0000 -> -Infinity Division_by_zero |
| dqlogb116 logb -0.0000 -> -Infinity Division_by_zero |
| dqlogb117 logb 0E-141 -> -Infinity Division_by_zero |
| dqlogb118 logb -0E-141 -> -Infinity Division_by_zero |
| |
| -- full coefficients, alternating bits |
| dqlogb121 logb 268268268 -> 8 |
| dqlogb122 logb -268268268 -> 8 |
| dqlogb123 logb 134134134 -> 8 |
| dqlogb124 logb -134134134 -> 8 |
| |
| -- Nmax, Nmin, Ntiny |
| dqlogb131 logb 9.999999999999999999999999999999999E+6144 -> 6144 |
| dqlogb132 logb 1E-6143 -> -6143 |
| dqlogb133 logb 1.000000000000000000000000000000000E-6143 -> -6143 |
| dqlogb134 logb 1E-6176 -> -6176 |
| |
| dqlogb135 logb -1E-6176 -> -6176 |
| dqlogb136 logb -1.000000000000000000000000000000000E-6143 -> -6143 |
| dqlogb137 logb -1E-6143 -> -6143 |
| dqlogb1614 logb -9.999999999999999999999999999999999E+6144 -> 6144 |
| |
| -- ones |
| dqlogb0061 logb 1 -> 0 |
| dqlogb0062 logb 1.0 -> 0 |
| dqlogb0063 logb 1.000000000000000 -> 0 |
| |
| -- notable cases -- exact powers of 10 |
| dqlogb1100 logb 1 -> 0 |
| dqlogb1101 logb 10 -> 1 |
| dqlogb1102 logb 100 -> 2 |
| dqlogb1103 logb 1000 -> 3 |
| dqlogb1104 logb 10000 -> 4 |
| dqlogb1105 logb 100000 -> 5 |
| dqlogb1106 logb 1000000 -> 6 |
| dqlogb1107 logb 10000000 -> 7 |
| dqlogb1108 logb 100000000 -> 8 |
| dqlogb1109 logb 1000000000 -> 9 |
| dqlogb1110 logb 10000000000 -> 10 |
| dqlogb1111 logb 100000000000 -> 11 |
| dqlogb1112 logb 1000000000000 -> 12 |
| dqlogb1113 logb 0.00000000001 -> -11 |
| dqlogb1114 logb 0.0000000001 -> -10 |
| dqlogb1115 logb 0.000000001 -> -9 |
| dqlogb1116 logb 0.00000001 -> -8 |
| dqlogb1117 logb 0.0000001 -> -7 |
| dqlogb1118 logb 0.000001 -> -6 |
| dqlogb1119 logb 0.00001 -> -5 |
| dqlogb1120 logb 0.0001 -> -4 |
| dqlogb1121 logb 0.001 -> -3 |
| dqlogb1122 logb 0.01 -> -2 |
| dqlogb1123 logb 0.1 -> -1 |
| dqlogb1124 logb 1E-99 -> -99 |
| dqlogb1125 logb 1E-100 -> -100 |
| dqlogb1127 logb 1E-299 -> -299 |
| dqlogb1126 logb 1E-6143 -> -6143 |
| |
| -- suggestions from Ilan Nehama |
| dqlogb1400 logb 10E-3 -> -2 |
| dqlogb1401 logb 10E-2 -> -1 |
| dqlogb1402 logb 100E-2 -> 0 |
| dqlogb1403 logb 1000E-2 -> 1 |
| dqlogb1404 logb 10000E-2 -> 2 |
| dqlogb1405 logb 10E-1 -> 0 |
| dqlogb1406 logb 100E-1 -> 1 |
| dqlogb1407 logb 1000E-1 -> 2 |
| dqlogb1408 logb 10000E-1 -> 3 |
| dqlogb1409 logb 10E0 -> 1 |
| dqlogb1410 logb 100E0 -> 2 |
| dqlogb1411 logb 1000E0 -> 3 |
| dqlogb1412 logb 10000E0 -> 4 |
| dqlogb1413 logb 10E1 -> 2 |
| dqlogb1414 logb 100E1 -> 3 |
| dqlogb1415 logb 1000E1 -> 4 |
| dqlogb1416 logb 10000E1 -> 5 |
| dqlogb1417 logb 10E2 -> 3 |
| dqlogb1418 logb 100E2 -> 4 |
| dqlogb1419 logb 1000E2 -> 5 |
| dqlogb1420 logb 10000E2 -> 6 |
| |
| -- special values |
| dqlogb820 logb Infinity -> Infinity |
| dqlogb821 logb 0 -> -Infinity Division_by_zero |
| dqlogb822 logb NaN -> NaN |
| dqlogb823 logb sNaN -> NaN Invalid_operation |
| -- propagating NaNs |
| dqlogb824 logb sNaN123 -> NaN123 Invalid_operation |
| dqlogb825 logb -sNaN321 -> -NaN321 Invalid_operation |
| dqlogb826 logb NaN456 -> NaN456 |
| dqlogb827 logb -NaN654 -> -NaN654 |
| dqlogb828 logb NaN1 -> NaN1 |
| |
| -- Null test |
| dqlogb900 logb # -> NaN Invalid_operation |
| |
| |
