Changeset 391 for python/trunk/Lib/test/decimaltestdata/extra.decTest

Timestamp:

Mar 19, 2014, 11:31:01 PM (11 years ago)

Author:

dmik

Message:

python: Merge vendor 2.7.6 to trunk.

Location:

python/trunk

Files:

• . (modified) (1 prop)
• Lib/test/decimaltestdata/extra.decTest (modified) (2 diffs)

python/trunk/Lib/test/decimaltestdata/extra.decTest

@@ -214 +214 @@
 extr1660 shift 1234567 5 -> NaN Invalid_operation
 
+-- Cases where the power function was impossibly slow to determine that the
+-- result is inexact.  Thanks Stefan Krah for identifying this problem.
+precision: 16
+maxExponent: 999999999
+minExponent: -999999999
+extr1700 power 10 1e-999999999 -> 1.000000000000000 Inexact Rounded
+extr1701 power 100.0 -557.71e-742888888 -> 1.000000000000000 Inexact Rounded
+extr1702 power 10 1e-100 -> 1.000000000000000 Inexact Rounded
+
+-- Another one (see issue #12080).  Thanks again to Stefan Krah.
+extr1703 power 4 -1.2e-999999999 -> 1.000000000000000 Inexact Rounded
+
+-- A couple of interesting exact cases for power.  Note that the specification
+-- requires these to be reported as Inexact.
+extr1710 power 1e375 56e-3 -> 1.000000000000000E+21 Inexact Rounded
+extr1711 power 10000 0.75 -> 1000.000000000000 Inexact Rounded
+extr1712 power 1e-24 0.875 -> 1.000000000000000E-21 Inexact Rounded
+
+-- Some more exact cases, exercising power with negative second argument.
+extr1720 power 400 -0.5 -> 0.05000000000000000 Inexact Rounded
+extr1721 power 4096 -0.75 -> 0.001953125000000000 Inexact Rounded
+extr1722 power 625e4 -0.25 -> 0.02000000000000000 Inexact Rounded
+
+-- Nonexact cases, to exercise some of the early exit conditions from
+-- _power_exact.
+extr1730 power 2048 -0.75 -> 0.003284751622084822 Inexact Rounded
 
 
@@ -2733 +2759 @@
 pwmx439 power 19 1728 1729 -> 456
 pwmx440 power 20 1728 1729 -> 1
+
+-- plus and minus zero in various rounding modes (see issue 11131)
+extended: 1
+precision: 9
+maxexponent: 384
+minexponent: -383
+
+rounding: half_even
+plux1000 plus 0.0 -> 0.0
+plux1001 plus -0.0 -> 0.0
+minx1000 minus 0.0 -> 0.0
+minx1001 minus -0.0 -> 0.0
+absx1000 abs 0.0 -> 0.0
+absx1001 abs -0.0 -> 0.0
+
+rounding: half_up
+plux1010 plus 0.0 -> 0.0
+minx1010 minus 0.0 -> 0.0
+plux1011 plus -0.0 -> 0.0
+minx1011 minus -0.0 -> 0.0
+absx1010 abs 0.0 -> 0.0
+absx1011 abs -0.0 -> 0.0
+
+rounding: ceiling
+plux1020 plus 0.0 -> 0.0
+minx1020 minus 0.0 -> 0.0
+plux1021 plus -0.0 -> 0.0
+minx1021 minus -0.0 -> 0.0
+absx1020 abs 0.0 -> 0.0
+absx1021 abs -0.0 -> 0.0
+
+rounding: floor
+plux1030 plus 0.0 -> 0.0
+minx1030 minus 0.0 -> -0.0
+plux1031 plus -0.0 -> -0.0
+minx1031 minus -0.0 -> 0.0
+absx1030 abs 0.0 -> 0.0
+absx1031 abs -0.0 -> 0.0
+
+rounding: down
+plux1040 plus 0.0 -> 0.0
+minx1040 minus 0.0 -> 0.0
+plux1041 plus -0.0 -> 0.0
+minx1041 minus -0.0 -> 0.0
+absx1040 abs 0.0 -> 0.0
+absx1041 abs -0.0 -> 0.0
+
+rounding: up
+plux1050 plus 0.0 -> 0.0
+minx1050 minus 0.0 -> 0.0
+plux1051 plus -0.0 -> 0.0
+minx1051 minus -0.0 -> 0.0
+absx1050 abs 0.0 -> 0.0
+absx1051 abs -0.0 -> 0.0
+
+rounding: half_down
+plux1060 plus 0.0 -> 0.0
+minx1060 minus 0.0 -> 0.0
+plux1061 plus -0.0 -> 0.0
+minx1061 minus -0.0 -> 0.0
+absx1060 abs 0.0 -> 0.0
+absx1061 abs -0.0 -> 0.0
+
+rounding: 05up
+plux1070 plus 0.0 -> 0.0
+minx1070 minus 0.0 -> 0.0
+plux1071 plus -0.0 -> 0.0
+minx1071 minus -0.0 -> 0.0
+absx1070 abs 0.0 -> 0.0
+absx1071 abs -0.0 -> 0.0