Merged the decimal-branch (revisions 54886 to 58140). Decimal is now
fully updated to the latests Decimal Specification (v1.66) and the
latests test cases (v2.56).
Thanks to Mark Dickinson for all his help during this process.
diff --git a/Lib/test/decimaltestdata/dqShift.decTest b/Lib/test/decimaltestdata/dqShift.decTest
new file mode 100644
index 0000000..e728ec5
--- /dev/null
+++ b/Lib/test/decimaltestdata/dqShift.decTest
@@ -0,0 +1,298 @@
+------------------------------------------------------------------------
+-- dqShift.decTest -- shift decQuad coefficient left or right --
+-- Copyright (c) IBM Corporation, 1981, 2007. 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: 2.56
+
+extended: 1
+clamp: 1
+precision: 34
+maxExponent: 6144
+minExponent: -6143
+rounding: half_even
+
+-- Sanity check
+dqshi001 shift 0 0 -> 0
+dqshi002 shift 0 2 -> 0
+dqshi003 shift 1 2 -> 100
+dqshi004 shift 1 33 -> 1000000000000000000000000000000000
+dqshi005 shift 1 34 -> 0
+dqshi006 shift 1 -1 -> 0
+dqshi007 shift 0 -2 -> 0
+dqshi008 shift 1234567890123456789012345678901234 -1 -> 123456789012345678901234567890123
+dqshi009 shift 1234567890123456789012345678901234 -33 -> 1
+dqshi010 shift 1234567890123456789012345678901234 -34 -> 0
+dqshi011 shift 9934567890123456789012345678901234 -33 -> 9
+dqshi012 shift 9934567890123456789012345678901234 -34 -> 0
+
+-- rhs must be an integer
+dqshi015 shift 1 1.5 -> NaN Invalid_operation
+dqshi016 shift 1 1.0 -> NaN Invalid_operation
+dqshi017 shift 1 0.1 -> NaN Invalid_operation
+dqshi018 shift 1 0.0 -> NaN Invalid_operation
+dqshi019 shift 1 1E+1 -> NaN Invalid_operation
+dqshi020 shift 1 1E+99 -> NaN Invalid_operation
+dqshi021 shift 1 Inf -> NaN Invalid_operation
+dqshi022 shift 1 -Inf -> NaN Invalid_operation
+-- and |rhs| <= precision
+dqshi025 shift 1 -1000 -> NaN Invalid_operation
+dqshi026 shift 1 -35 -> NaN Invalid_operation
+dqshi027 shift 1 35 -> NaN Invalid_operation
+dqshi028 shift 1 1000 -> NaN Invalid_operation
+
+-- full shifting pattern
+dqshi030 shift 1234567890123456789012345678901234 -34 -> 0
+dqshi031 shift 1234567890123456789012345678901234 -33 -> 1
+dqshi032 shift 1234567890123456789012345678901234 -32 -> 12
+dqshi033 shift 1234567890123456789012345678901234 -31 -> 123
+dqshi034 shift 1234567890123456789012345678901234 -30 -> 1234
+dqshi035 shift 1234567890123456789012345678901234 -29 -> 12345
+dqshi036 shift 1234567890123456789012345678901234 -28 -> 123456
+dqshi037 shift 1234567890123456789012345678901234 -27 -> 1234567
+dqshi038 shift 1234567890123456789012345678901234 -26 -> 12345678
+dqshi039 shift 1234567890123456789012345678901234 -25 -> 123456789
+dqshi040 shift 1234567890123456789012345678901234 -24 -> 1234567890
+dqshi041 shift 1234567890123456789012345678901234 -23 -> 12345678901
+dqshi042 shift 1234567890123456789012345678901234 -22 -> 123456789012
+dqshi043 shift 1234567890123456789012345678901234 -21 -> 1234567890123
+dqshi044 shift 1234567890123456789012345678901234 -20 -> 12345678901234
+dqshi045 shift 1234567890123456789012345678901234 -19 -> 123456789012345
+dqshi047 shift 1234567890123456789012345678901234 -18 -> 1234567890123456
+dqshi048 shift 1234567890123456789012345678901234 -17 -> 12345678901234567
+dqshi049 shift 1234567890123456789012345678901234 -16 -> 123456789012345678
+dqshi050 shift 1234567890123456789012345678901234 -15 -> 1234567890123456789
+dqshi051 shift 1234567890123456789012345678901234 -14 -> 12345678901234567890
+dqshi052 shift 1234567890123456789012345678901234 -13 -> 123456789012345678901
+dqshi053 shift 1234567890123456789012345678901234 -12 -> 1234567890123456789012
+dqshi054 shift 1234567890123456789012345678901234 -11 -> 12345678901234567890123
+dqshi055 shift 1234567890123456789012345678901234 -10 -> 123456789012345678901234
+dqshi056 shift 1234567890123456789012345678901234 -9 -> 1234567890123456789012345
+dqshi057 shift 1234567890123456789012345678901234 -8 -> 12345678901234567890123456
+dqshi058 shift 1234567890123456789012345678901234 -7 -> 123456789012345678901234567
+dqshi059 shift 1234567890123456789012345678901234 -6 -> 1234567890123456789012345678
+dqshi060 shift 1234567890123456789012345678901234 -5 -> 12345678901234567890123456789
+dqshi061 shift 1234567890123456789012345678901234 -4 -> 123456789012345678901234567890
+dqshi062 shift 1234567890123456789012345678901234 -3 -> 1234567890123456789012345678901
+dqshi063 shift 1234567890123456789012345678901234 -2 -> 12345678901234567890123456789012
+dqshi064 shift 1234567890123456789012345678901234 -1 -> 123456789012345678901234567890123
+dqshi065 shift 1234567890123456789012345678901234 -0 -> 1234567890123456789012345678901234
+
+dqshi066 shift 1234567890123456789012345678901234 +0 -> 1234567890123456789012345678901234
+dqshi067 shift 1234567890123456789012345678901234 +1 -> 2345678901234567890123456789012340
+dqshi068 shift 1234567890123456789012345678901234 +2 -> 3456789012345678901234567890123400
+dqshi069 shift 1234567890123456789012345678901234 +3 -> 4567890123456789012345678901234000
+dqshi070 shift 1234567890123456789012345678901234 +4 -> 5678901234567890123456789012340000
+dqshi071 shift 1234567890123456789012345678901234 +5 -> 6789012345678901234567890123400000
+dqshi072 shift 1234567890123456789012345678901234 +6 -> 7890123456789012345678901234000000
+dqshi073 shift 1234567890123456789012345678901234 +7 -> 8901234567890123456789012340000000
+dqshi074 shift 1234567890123456789012345678901234 +8 -> 9012345678901234567890123400000000
+dqshi075 shift 1234567890123456789012345678901234 +9 -> 123456789012345678901234000000000
+dqshi076 shift 1234567890123456789012345678901234 +10 -> 1234567890123456789012340000000000
+dqshi077 shift 1234567890123456789012345678901234 +11 -> 2345678901234567890123400000000000
+dqshi078 shift 1234567890123456789012345678901234 +12 -> 3456789012345678901234000000000000
+dqshi079 shift 1234567890123456789012345678901234 +13 -> 4567890123456789012340000000000000
+dqshi080 shift 1234567890123456789012345678901234 +14 -> 5678901234567890123400000000000000
+dqshi081 shift 1234567890123456789012345678901234 +15 -> 6789012345678901234000000000000000
+dqshi082 shift 1234567890123456789012345678901234 +16 -> 7890123456789012340000000000000000
+dqshi083 shift 1234567890123456789012345678901234 +17 -> 8901234567890123400000000000000000
+dqshi084 shift 1234567890123456789012345678901234 +18 -> 9012345678901234000000000000000000
+dqshi085 shift 1234567890123456789012345678901234 +19 -> 123456789012340000000000000000000
+dqshi086 shift 1234567890123456789012345678901234 +20 -> 1234567890123400000000000000000000
+dqshi087 shift 1234567890123456789012345678901234 +21 -> 2345678901234000000000000000000000
+dqshi088 shift 1234567890123456789012345678901234 +22 -> 3456789012340000000000000000000000
+dqshi089 shift 1234567890123456789012345678901234 +23 -> 4567890123400000000000000000000000
+dqshi090 shift 1234567890123456789012345678901234 +24 -> 5678901234000000000000000000000000
+dqshi091 shift 1234567890123456789012345678901234 +25 -> 6789012340000000000000000000000000
+dqshi092 shift 1234567890123456789012345678901234 +26 -> 7890123400000000000000000000000000
+dqshi093 shift 1234567890123456789012345678901234 +27 -> 8901234000000000000000000000000000
+dqshi094 shift 1234567890123456789012345678901234 +28 -> 9012340000000000000000000000000000
+dqshi095 shift 1234567890123456789012345678901234 +29 -> 123400000000000000000000000000000
+dqshi096 shift 1234567890123456789012345678901234 +30 -> 1234000000000000000000000000000000
+dqshi097 shift 1234567890123456789012345678901234 +31 -> 2340000000000000000000000000000000
+dqshi098 shift 1234567890123456789012345678901234 +32 -> 3400000000000000000000000000000000
+dqshi099 shift 1234567890123456789012345678901234 +33 -> 4000000000000000000000000000000000
+dqshi100 shift 1234567890123456789012345678901234 +34 -> 0
+
+-- zeros
+dqshi270 shift 0E-10 +29 -> 0E-10
+dqshi271 shift 0E-10 -29 -> 0E-10
+dqshi272 shift 0.000 +29 -> 0.000
+dqshi273 shift 0.000 -29 -> 0.000
+dqshi274 shift 0E+10 +29 -> 0E+10
+dqshi275 shift 0E+10 -29 -> 0E+10
+dqshi276 shift -0E-10 +29 -> -0E-10
+dqshi277 shift -0E-10 -29 -> -0E-10
+dqshi278 shift -0.000 +29 -> -0.000
+dqshi279 shift -0.000 -29 -> -0.000
+dqshi280 shift -0E+10 +29 -> -0E+10
+dqshi281 shift -0E+10 -29 -> -0E+10
+
+-- Nmax, Nmin, Ntiny
+dqshi141 shift 9.999999999999999999999999999999999E+6144 -1 -> 9.99999999999999999999999999999999E+6143
+dqshi142 shift 9.999999999999999999999999999999999E+6144 -33 -> 9E+6111
+dqshi143 shift 9.999999999999999999999999999999999E+6144 1 -> 9.999999999999999999999999999999990E+6144
+dqshi144 shift 9.999999999999999999999999999999999E+6144 33 -> 9.000000000000000000000000000000000E+6144
+dqshi145 shift 1E-6143 -1 -> 0E-6143
+dqshi146 shift 1E-6143 -33 -> 0E-6143
+dqshi147 shift 1E-6143 1 -> 1.0E-6142
+dqshi148 shift 1E-6143 33 -> 1.000000000000000000000000000000000E-6110
+dqshi151 shift 1.000000000000000000000000000000000E-6143 -1 -> 1.00000000000000000000000000000000E-6144
+dqshi152 shift 1.000000000000000000000000000000000E-6143 -33 -> 1E-6176
+dqshi153 shift 1.000000000000000000000000000000000E-6143 1 -> 0E-6176
+dqshi154 shift 1.000000000000000000000000000000000E-6143 33 -> 0E-6176
+dqshi155 shift 9.000000000000000000000000000000000E-6143 -1 -> 9.00000000000000000000000000000000E-6144
+dqshi156 shift 9.000000000000000000000000000000000E-6143 -33 -> 9E-6176
+dqshi157 shift 9.000000000000000000000000000000000E-6143 1 -> 0E-6176
+dqshi158 shift 9.000000000000000000000000000000000E-6143 33 -> 0E-6176
+dqshi160 shift 1E-6176 -1 -> 0E-6176
+dqshi161 shift 1E-6176 -33 -> 0E-6176
+dqshi162 shift 1E-6176 1 -> 1.0E-6175
+dqshi163 shift 1E-6176 33 -> 1.000000000000000000000000000000000E-6143
+-- negatives
+dqshi171 shift -9.999999999999999999999999999999999E+6144 -1 -> -9.99999999999999999999999999999999E+6143
+dqshi172 shift -9.999999999999999999999999999999999E+6144 -33 -> -9E+6111
+dqshi173 shift -9.999999999999999999999999999999999E+6144 1 -> -9.999999999999999999999999999999990E+6144
+dqshi174 shift -9.999999999999999999999999999999999E+6144 33 -> -9.000000000000000000000000000000000E+6144
+dqshi175 shift -1E-6143 -1 -> -0E-6143
+dqshi176 shift -1E-6143 -33 -> -0E-6143
+dqshi177 shift -1E-6143 1 -> -1.0E-6142
+dqshi178 shift -1E-6143 33 -> -1.000000000000000000000000000000000E-6110
+dqshi181 shift -1.000000000000000000000000000000000E-6143 -1 -> -1.00000000000000000000000000000000E-6144
+dqshi182 shift -1.000000000000000000000000000000000E-6143 -33 -> -1E-6176
+dqshi183 shift -1.000000000000000000000000000000000E-6143 1 -> -0E-6176
+dqshi184 shift -1.000000000000000000000000000000000E-6143 33 -> -0E-6176
+dqshi185 shift -9.000000000000000000000000000000000E-6143 -1 -> -9.00000000000000000000000000000000E-6144
+dqshi186 shift -9.000000000000000000000000000000000E-6143 -33 -> -9E-6176
+dqshi187 shift -9.000000000000000000000000000000000E-6143 1 -> -0E-6176
+dqshi188 shift -9.000000000000000000000000000000000E-6143 33 -> -0E-6176
+dqshi190 shift -1E-6176 -1 -> -0E-6176
+dqshi191 shift -1E-6176 -33 -> -0E-6176
+dqshi192 shift -1E-6176 1 -> -1.0E-6175
+dqshi193 shift -1E-6176 33 -> -1.000000000000000000000000000000000E-6143
+
+-- more negatives (of sanities)
+dqshi201 shift -0 0 -> -0
+dqshi202 shift -0 2 -> -0
+dqshi203 shift -1 2 -> -100
+dqshi204 shift -1 33 -> -1000000000000000000000000000000000
+dqshi205 shift -1 34 -> -0
+dqshi206 shift -1 -1 -> -0
+dqshi207 shift -0 -2 -> -0
+dqshi208 shift -1234567890123456789012345678901234 -1 -> -123456789012345678901234567890123
+dqshi209 shift -1234567890123456789012345678901234 -33 -> -1
+dqshi210 shift -1234567890123456789012345678901234 -34 -> -0
+dqshi211 shift -9934567890123456789012345678901234 -33 -> -9
+dqshi212 shift -9934567890123456789012345678901234 -34 -> -0
+
+
+-- Specials; NaNs are handled as usual
+dqshi781 shift -Inf -8 -> -Infinity
+dqshi782 shift -Inf -1 -> -Infinity
+dqshi783 shift -Inf -0 -> -Infinity
+dqshi784 shift -Inf 0 -> -Infinity
+dqshi785 shift -Inf 1 -> -Infinity
+dqshi786 shift -Inf 8 -> -Infinity
+dqshi787 shift -1000 -Inf -> NaN Invalid_operation
+dqshi788 shift -Inf -Inf -> NaN Invalid_operation
+dqshi789 shift -1 -Inf -> NaN Invalid_operation
+dqshi790 shift -0 -Inf -> NaN Invalid_operation
+dqshi791 shift 0 -Inf -> NaN Invalid_operation
+dqshi792 shift 1 -Inf -> NaN Invalid_operation
+dqshi793 shift 1000 -Inf -> NaN Invalid_operation
+dqshi794 shift Inf -Inf -> NaN Invalid_operation
+
+dqshi800 shift Inf -Inf -> NaN Invalid_operation
+dqshi801 shift Inf -8 -> Infinity
+dqshi802 shift Inf -1 -> Infinity
+dqshi803 shift Inf -0 -> Infinity
+dqshi804 shift Inf 0 -> Infinity
+dqshi805 shift Inf 1 -> Infinity
+dqshi806 shift Inf 8 -> Infinity
+dqshi807 shift Inf Inf -> NaN Invalid_operation
+dqshi808 shift -1000 Inf -> NaN Invalid_operation
+dqshi809 shift -Inf Inf -> NaN Invalid_operation
+dqshi810 shift -1 Inf -> NaN Invalid_operation
+dqshi811 shift -0 Inf -> NaN Invalid_operation
+dqshi812 shift 0 Inf -> NaN Invalid_operation
+dqshi813 shift 1 Inf -> NaN Invalid_operation
+dqshi814 shift 1000 Inf -> NaN Invalid_operation
+dqshi815 shift Inf Inf -> NaN Invalid_operation
+
+dqshi821 shift NaN -Inf -> NaN
+dqshi822 shift NaN -1000 -> NaN
+dqshi823 shift NaN -1 -> NaN
+dqshi824 shift NaN -0 -> NaN
+dqshi825 shift NaN 0 -> NaN
+dqshi826 shift NaN 1 -> NaN
+dqshi827 shift NaN 1000 -> NaN
+dqshi828 shift NaN Inf -> NaN
+dqshi829 shift NaN NaN -> NaN
+dqshi830 shift -Inf NaN -> NaN
+dqshi831 shift -1000 NaN -> NaN
+dqshi832 shift -1 NaN -> NaN
+dqshi833 shift -0 NaN -> NaN
+dqshi834 shift 0 NaN -> NaN
+dqshi835 shift 1 NaN -> NaN
+dqshi836 shift 1000 NaN -> NaN
+dqshi837 shift Inf NaN -> NaN
+
+dqshi841 shift sNaN -Inf -> NaN Invalid_operation
+dqshi842 shift sNaN -1000 -> NaN Invalid_operation
+dqshi843 shift sNaN -1 -> NaN Invalid_operation
+dqshi844 shift sNaN -0 -> NaN Invalid_operation
+dqshi845 shift sNaN 0 -> NaN Invalid_operation
+dqshi846 shift sNaN 1 -> NaN Invalid_operation
+dqshi847 shift sNaN 1000 -> NaN Invalid_operation
+dqshi848 shift sNaN NaN -> NaN Invalid_operation
+dqshi849 shift sNaN sNaN -> NaN Invalid_operation
+dqshi850 shift NaN sNaN -> NaN Invalid_operation
+dqshi851 shift -Inf sNaN -> NaN Invalid_operation
+dqshi852 shift -1000 sNaN -> NaN Invalid_operation
+dqshi853 shift -1 sNaN -> NaN Invalid_operation
+dqshi854 shift -0 sNaN -> NaN Invalid_operation
+dqshi855 shift 0 sNaN -> NaN Invalid_operation
+dqshi856 shift 1 sNaN -> NaN Invalid_operation
+dqshi857 shift 1000 sNaN -> NaN Invalid_operation
+dqshi858 shift Inf sNaN -> NaN Invalid_operation
+dqshi859 shift NaN sNaN -> NaN Invalid_operation
+
+-- propagating NaNs
+dqshi861 shift NaN1 -Inf -> NaN1
+dqshi862 shift +NaN2 -1000 -> NaN2
+dqshi863 shift NaN3 1000 -> NaN3
+dqshi864 shift NaN4 Inf -> NaN4
+dqshi865 shift NaN5 +NaN6 -> NaN5
+dqshi866 shift -Inf NaN7 -> NaN7
+dqshi867 shift -1000 NaN8 -> NaN8
+dqshi868 shift 1000 NaN9 -> NaN9
+dqshi869 shift Inf +NaN10 -> NaN10
+dqshi871 shift sNaN11 -Inf -> NaN11 Invalid_operation
+dqshi872 shift sNaN12 -1000 -> NaN12 Invalid_operation
+dqshi873 shift sNaN13 1000 -> NaN13 Invalid_operation
+dqshi874 shift sNaN14 NaN17 -> NaN14 Invalid_operation
+dqshi875 shift sNaN15 sNaN18 -> NaN15 Invalid_operation
+dqshi876 shift NaN16 sNaN19 -> NaN19 Invalid_operation
+dqshi877 shift -Inf +sNaN20 -> NaN20 Invalid_operation
+dqshi878 shift -1000 sNaN21 -> NaN21 Invalid_operation
+dqshi879 shift 1000 sNaN22 -> NaN22 Invalid_operation
+dqshi880 shift Inf sNaN23 -> NaN23 Invalid_operation
+dqshi881 shift +NaN25 +sNaN24 -> NaN24 Invalid_operation
+dqshi882 shift -NaN26 NaN28 -> -NaN26
+dqshi883 shift -sNaN27 sNaN29 -> -NaN27 Invalid_operation
+dqshi884 shift 1000 -NaN30 -> -NaN30
+dqshi885 shift 1000 -sNaN31 -> -NaN31 Invalid_operation