diff options
Diffstat (limited to 'lib/python2.7/test/decimaltestdata/ddLogB.decTest')
| -rw-r--r-- | lib/python2.7/test/decimaltestdata/ddLogB.decTest | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/lib/python2.7/test/decimaltestdata/ddLogB.decTest b/lib/python2.7/test/decimaltestdata/ddLogB.decTest new file mode 100644 index 0000000..de728e5 --- /dev/null +++ b/lib/python2.7/test/decimaltestdata/ddLogB.decTest @@ -0,0 +1,159 @@ +------------------------------------------------------------------------ +-- ddLogB.decTest -- integral 754r adjusted exponent, for decDoubles -- +-- 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 + +precision: 16 +maxExponent: 384 +minExponent: -383 +extended: 1 +clamp: 1 +rounding: half_even + +-- basics +ddlogb000 logb 0 -> -Infinity Division_by_zero +ddlogb001 logb 1E-398 -> -398 +ddlogb002 logb 1E-383 -> -383 +ddlogb003 logb 0.001 -> -3 +ddlogb004 logb 0.03 -> -2 +ddlogb005 logb 1 -> 0 +ddlogb006 logb 2 -> 0 +ddlogb007 logb 2.5 -> 0 +ddlogb008 logb 2.500 -> 0 +ddlogb009 logb 10 -> 1 +ddlogb010 logb 70 -> 1 +ddlogb011 logb 100 -> 2 +ddlogb012 logb 333 -> 2 +ddlogb013 logb 9E+384 -> 384 +ddlogb014 logb +Infinity -> Infinity + +-- negatives appear to be treated as positives +ddlogb021 logb -0 -> -Infinity Division_by_zero +ddlogb022 logb -1E-398 -> -398 +ddlogb023 logb -9E-383 -> -383 +ddlogb024 logb -0.001 -> -3 +ddlogb025 logb -1 -> 0 +ddlogb026 logb -2 -> 0 +ddlogb027 logb -10 -> 1 +ddlogb028 logb -70 -> 1 +ddlogb029 logb -100 -> 2 +ddlogb030 logb -9E+384 -> 384 +ddlogb031 logb -Infinity -> Infinity + +-- zeros +ddlogb111 logb 0 -> -Infinity Division_by_zero +ddlogb112 logb -0 -> -Infinity Division_by_zero +ddlogb113 logb 0E+4 -> -Infinity Division_by_zero +ddlogb114 logb -0E+4 -> -Infinity Division_by_zero +ddlogb115 logb 0.0000 -> -Infinity Division_by_zero +ddlogb116 logb -0.0000 -> -Infinity Division_by_zero +ddlogb117 logb 0E-141 -> -Infinity Division_by_zero +ddlogb118 logb -0E-141 -> -Infinity Division_by_zero + +-- full coefficients, alternating bits +ddlogb121 logb 268268268 -> 8 +ddlogb122 logb -268268268 -> 8 +ddlogb123 logb 134134134 -> 8 +ddlogb124 logb -134134134 -> 8 + +-- Nmax, Nmin, Ntiny +ddlogb131 logb 9.999999999999999E+384 -> 384 +ddlogb132 logb 1E-383 -> -383 +ddlogb133 logb 1.000000000000000E-383 -> -383 +ddlogb134 logb 1E-398 -> -398 + +ddlogb135 logb -1E-398 -> -398 +ddlogb136 logb -1.000000000000000E-383 -> -383 +ddlogb137 logb -1E-383 -> -383 +ddlogb138 logb -9.999999999999999E+384 -> 384 + +-- ones +ddlogb0061 logb 1 -> 0 +ddlogb0062 logb 1.0 -> 0 +ddlogb0063 logb 1.000000000000000 -> 0 + +-- notable cases -- exact powers of 10 +ddlogb1100 logb 1 -> 0 +ddlogb1101 logb 10 -> 1 +ddlogb1102 logb 100 -> 2 +ddlogb1103 logb 1000 -> 3 +ddlogb1104 logb 10000 -> 4 +ddlogb1105 logb 100000 -> 5 +ddlogb1106 logb 1000000 -> 6 +ddlogb1107 logb 10000000 -> 7 +ddlogb1108 logb 100000000 -> 8 +ddlogb1109 logb 1000000000 -> 9 +ddlogb1110 logb 10000000000 -> 10 +ddlogb1111 logb 100000000000 -> 11 +ddlogb1112 logb 1000000000000 -> 12 +ddlogb1113 logb 0.00000000001 -> -11 +ddlogb1114 logb 0.0000000001 -> -10 +ddlogb1115 logb 0.000000001 -> -9 +ddlogb1116 logb 0.00000001 -> -8 +ddlogb1117 logb 0.0000001 -> -7 +ddlogb1118 logb 0.000001 -> -6 +ddlogb1119 logb 0.00001 -> -5 +ddlogb1120 logb 0.0001 -> -4 +ddlogb1121 logb 0.001 -> -3 +ddlogb1122 logb 0.01 -> -2 +ddlogb1123 logb 0.1 -> -1 +ddlogb1124 logb 1E-99 -> -99 +ddlogb1125 logb 1E-100 -> -100 +ddlogb1127 logb 1E-299 -> -299 +ddlogb1126 logb 1E-383 -> -383 + +-- suggestions from Ilan Nehama +ddlogb1400 logb 10E-3 -> -2 +ddlogb1401 logb 10E-2 -> -1 +ddlogb1402 logb 100E-2 -> 0 +ddlogb1403 logb 1000E-2 -> 1 +ddlogb1404 logb 10000E-2 -> 2 +ddlogb1405 logb 10E-1 -> 0 +ddlogb1406 logb 100E-1 -> 1 +ddlogb1407 logb 1000E-1 -> 2 +ddlogb1408 logb 10000E-1 -> 3 +ddlogb1409 logb 10E0 -> 1 +ddlogb1410 logb 100E0 -> 2 +ddlogb1411 logb 1000E0 -> 3 +ddlogb1412 logb 10000E0 -> 4 +ddlogb1413 logb 10E1 -> 2 +ddlogb1414 logb 100E1 -> 3 +ddlogb1415 logb 1000E1 -> 4 +ddlogb1416 logb 10000E1 -> 5 +ddlogb1417 logb 10E2 -> 3 +ddlogb1418 logb 100E2 -> 4 +ddlogb1419 logb 1000E2 -> 5 +ddlogb1420 logb 10000E2 -> 6 + +-- special values +ddlogb820 logb Infinity -> Infinity +ddlogb821 logb 0 -> -Infinity Division_by_zero +ddlogb822 logb NaN -> NaN +ddlogb823 logb sNaN -> NaN Invalid_operation +-- propagating NaNs +ddlogb824 logb sNaN123 -> NaN123 Invalid_operation +ddlogb825 logb -sNaN321 -> -NaN321 Invalid_operation +ddlogb826 logb NaN456 -> NaN456 +ddlogb827 logb -NaN654 -> -NaN654 +ddlogb828 logb NaN1 -> NaN1 + +-- Null test +ddlogb900 logb # -> NaN Invalid_operation + + |