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161 lines
6.2 KiB
161 lines
6.2 KiB
------------------------------------------------------------------------
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-- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads --
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-- Copyright (c) IBM Corporation, 2005, 2008. All rights reserved. --
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------------------------------------------------------------------------
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-- Please see the document "General Decimal Arithmetic Testcases" --
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-- at http://www2.hursley.ibm.com/decimal for the description of --
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-- these testcases. --
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-- --
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-- These testcases are experimental ('beta' versions), and they --
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-- may contain errors. They are offered on an as-is basis. In --
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-- particular, achieving the same results as the tests here is not --
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-- a guarantee that an implementation complies with any Standard --
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-- or specification. The tests are not exhaustive. --
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-- --
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-- Please send comments, suggestions, and corrections to the author: --
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-- Mike Cowlishaw, IBM Fellow --
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-- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
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-- mfc@uk.ibm.com --
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------------------------------------------------------------------------
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version: 2.59
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extended: 1
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clamp: 1
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precision: 34
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maxExponent: 6144
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minExponent: -6143
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rounding: half_even
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-- basics
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dqlogb000 logb 0 -> -Infinity Division_by_zero
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dqlogb001 logb 1E-6176 -> -6176
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dqlogb002 logb 1E-6143 -> -6143
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dqlogb003 logb 0.001 -> -3
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dqlogb004 logb 0.03 -> -2
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dqlogb005 logb 1 -> 0
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dqlogb006 logb 2 -> 0
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dqlogb007 logb 2.5 -> 0
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dqlogb008 logb 2.50 -> 0
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dqlogb009 logb 2.500 -> 0
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dqlogb010 logb 10 -> 1
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dqlogb011 logb 70 -> 1
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dqlogb012 logb 100 -> 2
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dqlogb013 logb 250 -> 2
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dqlogb014 logb 9E+6144 -> 6144
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dqlogb015 logb +Infinity -> Infinity
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-- negatives appear to be treated as positives
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dqlogb021 logb -0 -> -Infinity Division_by_zero
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dqlogb022 logb -1E-6176 -> -6176
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dqlogb023 logb -9E-6143 -> -6143
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dqlogb024 logb -0.001 -> -3
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dqlogb025 logb -1 -> 0
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dqlogb026 logb -2 -> 0
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dqlogb027 logb -10 -> 1
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dqlogb028 logb -70 -> 1
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dqlogb029 logb -100 -> 2
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dqlogb030 logb -9E+6144 -> 6144
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dqlogb031 logb -Infinity -> Infinity
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-- zeros
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dqlogb111 logb 0 -> -Infinity Division_by_zero
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dqlogb112 logb -0 -> -Infinity Division_by_zero
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dqlogb113 logb 0E+4 -> -Infinity Division_by_zero
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dqlogb114 logb -0E+4 -> -Infinity Division_by_zero
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dqlogb115 logb 0.0000 -> -Infinity Division_by_zero
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dqlogb116 logb -0.0000 -> -Infinity Division_by_zero
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dqlogb117 logb 0E-141 -> -Infinity Division_by_zero
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dqlogb118 logb -0E-141 -> -Infinity Division_by_zero
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-- full coefficients, alternating bits
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dqlogb121 logb 268268268 -> 8
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dqlogb122 logb -268268268 -> 8
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dqlogb123 logb 134134134 -> 8
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dqlogb124 logb -134134134 -> 8
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-- Nmax, Nmin, Ntiny
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dqlogb131 logb 9.999999999999999999999999999999999E+6144 -> 6144
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dqlogb132 logb 1E-6143 -> -6143
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dqlogb133 logb 1.000000000000000000000000000000000E-6143 -> -6143
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dqlogb134 logb 1E-6176 -> -6176
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dqlogb135 logb -1E-6176 -> -6176
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dqlogb136 logb -1.000000000000000000000000000000000E-6143 -> -6143
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dqlogb137 logb -1E-6143 -> -6143
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dqlogb1614 logb -9.999999999999999999999999999999999E+6144 -> 6144
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-- ones
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dqlogb0061 logb 1 -> 0
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dqlogb0062 logb 1.0 -> 0
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dqlogb0063 logb 1.000000000000000 -> 0
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-- notable cases -- exact powers of 10
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dqlogb1100 logb 1 -> 0
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dqlogb1101 logb 10 -> 1
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dqlogb1102 logb 100 -> 2
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dqlogb1103 logb 1000 -> 3
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dqlogb1104 logb 10000 -> 4
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dqlogb1105 logb 100000 -> 5
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dqlogb1106 logb 1000000 -> 6
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dqlogb1107 logb 10000000 -> 7
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dqlogb1108 logb 100000000 -> 8
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dqlogb1109 logb 1000000000 -> 9
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dqlogb1110 logb 10000000000 -> 10
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dqlogb1111 logb 100000000000 -> 11
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dqlogb1112 logb 1000000000000 -> 12
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dqlogb1113 logb 0.00000000001 -> -11
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dqlogb1114 logb 0.0000000001 -> -10
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dqlogb1115 logb 0.000000001 -> -9
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dqlogb1116 logb 0.00000001 -> -8
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dqlogb1117 logb 0.0000001 -> -7
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dqlogb1118 logb 0.000001 -> -6
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dqlogb1119 logb 0.00001 -> -5
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dqlogb1120 logb 0.0001 -> -4
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dqlogb1121 logb 0.001 -> -3
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dqlogb1122 logb 0.01 -> -2
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dqlogb1123 logb 0.1 -> -1
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dqlogb1124 logb 1E-99 -> -99
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dqlogb1125 logb 1E-100 -> -100
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dqlogb1127 logb 1E-299 -> -299
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dqlogb1126 logb 1E-6143 -> -6143
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-- suggestions from Ilan Nehama
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dqlogb1400 logb 10E-3 -> -2
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dqlogb1401 logb 10E-2 -> -1
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dqlogb1402 logb 100E-2 -> 0
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dqlogb1403 logb 1000E-2 -> 1
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dqlogb1404 logb 10000E-2 -> 2
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dqlogb1405 logb 10E-1 -> 0
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dqlogb1406 logb 100E-1 -> 1
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dqlogb1407 logb 1000E-1 -> 2
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dqlogb1408 logb 10000E-1 -> 3
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dqlogb1409 logb 10E0 -> 1
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dqlogb1410 logb 100E0 -> 2
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dqlogb1411 logb 1000E0 -> 3
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dqlogb1412 logb 10000E0 -> 4
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dqlogb1413 logb 10E1 -> 2
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dqlogb1414 logb 100E1 -> 3
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dqlogb1415 logb 1000E1 -> 4
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dqlogb1416 logb 10000E1 -> 5
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dqlogb1417 logb 10E2 -> 3
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dqlogb1418 logb 100E2 -> 4
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dqlogb1419 logb 1000E2 -> 5
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dqlogb1420 logb 10000E2 -> 6
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-- special values
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dqlogb820 logb Infinity -> Infinity
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dqlogb821 logb 0 -> -Infinity Division_by_zero
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dqlogb822 logb NaN -> NaN
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dqlogb823 logb sNaN -> NaN Invalid_operation
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-- propagating NaNs
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dqlogb824 logb sNaN123 -> NaN123 Invalid_operation
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dqlogb825 logb -sNaN321 -> -NaN321 Invalid_operation
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dqlogb826 logb NaN456 -> NaN456
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dqlogb827 logb -NaN654 -> -NaN654
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dqlogb828 logb NaN1 -> NaN1
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-- Null test
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dqlogb900 logb # -> NaN Invalid_operation
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