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/ddRotate.decTest b/Lib/test/decimaltestdata/ddRotate.decTest
new file mode 100644
index 0000000..473f2f6
--- /dev/null
+++ b/Lib/test/decimaltestdata/ddRotate.decTest
@@ -0,0 +1,262 @@
+------------------------------------------------------------------------

+-- ddRotate.decTest -- rotate a decDouble 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

+

+precision:   16

+maxExponent: 384

+minExponent: -383

+extended:    1

+clamp:       1

+rounding:    half_even

+

+-- Sanity check

+ddrot001 rotate                 0    0  ->  0

+ddrot002 rotate                 0    2  ->  0

+ddrot003 rotate                 1    2  ->  100

+ddrot004 rotate                 1   15  ->  1000000000000000

+ddrot005 rotate                 1   16  ->  1

+ddrot006 rotate                 1   -1  ->  1000000000000000

+ddrot007 rotate                 0   -2  ->  0

+ddrot008 rotate  1234567890123456   -1  ->  6123456789012345

+ddrot009 rotate  1234567890123456   -15 ->  2345678901234561

+ddrot010 rotate  1234567890123456   -16 ->  1234567890123456

+ddrot011 rotate  9934567890123456   -15 ->  9345678901234569

+ddrot012 rotate  9934567890123456   -16 ->  9934567890123456

+

+-- rhs must be an integer

+ddrot015 rotate        1    1.5    -> NaN Invalid_operation

+ddrot016 rotate        1    1.0    -> NaN Invalid_operation

+ddrot017 rotate        1    0.1    -> NaN Invalid_operation

+ddrot018 rotate        1    0.0    -> NaN Invalid_operation

+ddrot019 rotate        1    1E+1   -> NaN Invalid_operation

+ddrot020 rotate        1    1E+99  -> NaN Invalid_operation

+ddrot021 rotate        1    Inf    -> NaN Invalid_operation

+ddrot022 rotate        1    -Inf   -> NaN Invalid_operation

+-- and |rhs| <= precision

+ddrot025 rotate        1    -1000  -> NaN Invalid_operation

+ddrot026 rotate        1    -17    -> NaN Invalid_operation

+ddrot027 rotate        1     17    -> NaN Invalid_operation

+ddrot028 rotate        1     1000  -> NaN Invalid_operation

+

+-- full pattern

+ddrot030 rotate  1234567890123456         -16  -> 1234567890123456

+ddrot031 rotate  1234567890123456         -15  -> 2345678901234561

+ddrot032 rotate  1234567890123456         -14  -> 3456789012345612

+ddrot033 rotate  1234567890123456         -13  -> 4567890123456123

+ddrot034 rotate  1234567890123456         -12  -> 5678901234561234

+ddrot035 rotate  1234567890123456         -11  -> 6789012345612345

+ddrot036 rotate  1234567890123456         -10  -> 7890123456123456

+ddrot037 rotate  1234567890123456         -9   -> 8901234561234567

+ddrot038 rotate  1234567890123456         -8   -> 9012345612345678

+ddrot039 rotate  1234567890123456         -7   ->  123456123456789

+ddrot040 rotate  1234567890123456         -6   -> 1234561234567890

+ddrot041 rotate  1234567890123456         -5   -> 2345612345678901

+ddrot042 rotate  1234567890123456         -4   -> 3456123456789012

+ddrot043 rotate  1234567890123456         -3   -> 4561234567890123

+ddrot044 rotate  1234567890123456         -2   -> 5612345678901234

+ddrot045 rotate  1234567890123456         -1   -> 6123456789012345

+ddrot046 rotate  1234567890123456         -0   -> 1234567890123456

+

+ddrot047 rotate  1234567890123456         +0   -> 1234567890123456

+ddrot048 rotate  1234567890123456         +1   -> 2345678901234561

+ddrot049 rotate  1234567890123456         +2   -> 3456789012345612

+ddrot050 rotate  1234567890123456         +3   -> 4567890123456123

+ddrot051 rotate  1234567890123456         +4   -> 5678901234561234

+ddrot052 rotate  1234567890123456         +5   -> 6789012345612345

+ddrot053 rotate  1234567890123456         +6   -> 7890123456123456

+ddrot054 rotate  1234567890123456         +7   -> 8901234561234567

+ddrot055 rotate  1234567890123456         +8   -> 9012345612345678

+ddrot056 rotate  1234567890123456         +9   ->  123456123456789

+ddrot057 rotate  1234567890123456         +10  -> 1234561234567890

+ddrot058 rotate  1234567890123456         +11  -> 2345612345678901

+ddrot059 rotate  1234567890123456         +12  -> 3456123456789012

+ddrot060 rotate  1234567890123456         +13  -> 4561234567890123

+ddrot061 rotate  1234567890123456         +14  -> 5612345678901234

+ddrot062 rotate  1234567890123456         +15  -> 6123456789012345

+ddrot063 rotate  1234567890123456         +16  -> 1234567890123456

+

+-- zeros

+ddrot070 rotate  0E-10              +9   ->   0E-10

+ddrot071 rotate  0E-10              -9   ->   0E-10

+ddrot072 rotate  0.000              +9   ->   0.000

+ddrot073 rotate  0.000              -9   ->   0.000

+ddrot074 rotate  0E+10              +9   ->   0E+10

+ddrot075 rotate  0E+10              -9   ->   0E+10

+ddrot076 rotate -0E-10              +9   ->  -0E-10

+ddrot077 rotate -0E-10              -9   ->  -0E-10

+ddrot078 rotate -0.000              +9   ->  -0.000

+ddrot079 rotate -0.000              -9   ->  -0.000

+ddrot080 rotate -0E+10              +9   ->  -0E+10

+ddrot081 rotate -0E+10              -9   ->  -0E+10

+

+-- Nmax, Nmin, Ntiny

+ddrot141 rotate  9.999999999999999E+384     -1  -> 9.999999999999999E+384

+ddrot142 rotate  9.999999999999999E+384     -15 -> 9.999999999999999E+384

+ddrot143 rotate  9.999999999999999E+384      1  -> 9.999999999999999E+384

+ddrot144 rotate  9.999999999999999E+384      15 -> 9.999999999999999E+384

+ddrot145 rotate  1E-383                     -1  -> 1.000000000000000E-368

+ddrot146 rotate  1E-383                     -15 -> 1.0E-382

+ddrot147 rotate  1E-383                      1  -> 1.0E-382

+ddrot148 rotate  1E-383                      15 -> 1.000000000000000E-368

+ddrot151 rotate  1.000000000000000E-383     -1  -> 1.00000000000000E-384

+ddrot152 rotate  1.000000000000000E-383     -15 -> 1E-398

+ddrot153 rotate  1.000000000000000E-383      1  -> 1E-398

+ddrot154 rotate  1.000000000000000E-383      15 -> 1.00000000000000E-384

+ddrot155 rotate  9.000000000000000E-383     -1  -> 9.00000000000000E-384

+ddrot156 rotate  9.000000000000000E-383     -15 -> 9E-398

+ddrot157 rotate  9.000000000000000E-383      1  -> 9E-398

+ddrot158 rotate  9.000000000000000E-383      15 -> 9.00000000000000E-384

+ddrot160 rotate  1E-398                     -1  -> 1.000000000000000E-383

+ddrot161 rotate  1E-398                     -15 -> 1.0E-397

+ddrot162 rotate  1E-398                      1  -> 1.0E-397

+ddrot163 rotate  1E-398                      15 -> 1.000000000000000E-383

+--  negatives

+ddrot171 rotate -9.999999999999999E+384     -1  -> -9.999999999999999E+384

+ddrot172 rotate -9.999999999999999E+384     -15 -> -9.999999999999999E+384

+ddrot173 rotate -9.999999999999999E+384      1  -> -9.999999999999999E+384

+ddrot174 rotate -9.999999999999999E+384      15 -> -9.999999999999999E+384

+ddrot175 rotate -1E-383                     -1  -> -1.000000000000000E-368

+ddrot176 rotate -1E-383                     -15 -> -1.0E-382

+ddrot177 rotate -1E-383                      1  -> -1.0E-382

+ddrot178 rotate -1E-383                      15 -> -1.000000000000000E-368

+ddrot181 rotate -1.000000000000000E-383     -1  -> -1.00000000000000E-384

+ddrot182 rotate -1.000000000000000E-383     -15 -> -1E-398

+ddrot183 rotate -1.000000000000000E-383      1  -> -1E-398

+ddrot184 rotate -1.000000000000000E-383      15 -> -1.00000000000000E-384

+ddrot185 rotate -9.000000000000000E-383     -1  -> -9.00000000000000E-384

+ddrot186 rotate -9.000000000000000E-383     -15 -> -9E-398

+ddrot187 rotate -9.000000000000000E-383      1  -> -9E-398

+ddrot188 rotate -9.000000000000000E-383      15 -> -9.00000000000000E-384

+ddrot190 rotate -1E-398                     -1  -> -1.000000000000000E-383

+ddrot191 rotate -1E-398                     -15 -> -1.0E-397

+ddrot192 rotate -1E-398                      1  -> -1.0E-397

+ddrot193 rotate -1E-398                      15 -> -1.000000000000000E-383

+

+-- more negatives (of sanities)

+ddrot201 rotate                -0    0  -> -0

+ddrot202 rotate                -0    2  -> -0

+ddrot203 rotate                -1    2  -> -100

+ddrot204 rotate                -1   15  -> -1000000000000000

+ddrot205 rotate                -1   16  -> -1

+ddrot206 rotate                -1   -1  -> -1000000000000000

+ddrot207 rotate                -0   -2  -> -0

+ddrot208 rotate -1234567890123456   -1  -> -6123456789012345

+ddrot209 rotate -1234567890123456   -15 -> -2345678901234561

+ddrot210 rotate -1234567890123456   -16 -> -1234567890123456

+ddrot211 rotate -9934567890123456   -15 -> -9345678901234569

+ddrot212 rotate -9934567890123456   -16 -> -9934567890123456

+

+

+-- Specials; NaNs are handled as usual

+ddrot781 rotate -Inf  -8     -> -Infinity

+ddrot782 rotate -Inf  -1     -> -Infinity

+ddrot783 rotate -Inf  -0     -> -Infinity

+ddrot784 rotate -Inf   0     -> -Infinity

+ddrot785 rotate -Inf   1     -> -Infinity

+ddrot786 rotate -Inf   8     -> -Infinity

+ddrot787 rotate -1000 -Inf   -> NaN Invalid_operation

+ddrot788 rotate -Inf  -Inf   -> NaN Invalid_operation

+ddrot789 rotate -1    -Inf   -> NaN Invalid_operation

+ddrot790 rotate -0    -Inf   -> NaN Invalid_operation

+ddrot791 rotate  0    -Inf   -> NaN Invalid_operation

+ddrot792 rotate  1    -Inf   -> NaN Invalid_operation

+ddrot793 rotate  1000 -Inf   -> NaN Invalid_operation

+ddrot794 rotate  Inf  -Inf   -> NaN Invalid_operation

+

+ddrot800 rotate  Inf  -Inf   -> NaN Invalid_operation

+ddrot801 rotate  Inf  -8     -> Infinity

+ddrot802 rotate  Inf  -1     -> Infinity

+ddrot803 rotate  Inf  -0     -> Infinity

+ddrot804 rotate  Inf   0     -> Infinity

+ddrot805 rotate  Inf   1     -> Infinity

+ddrot806 rotate  Inf   8     -> Infinity

+ddrot807 rotate  Inf   Inf   -> NaN Invalid_operation

+ddrot808 rotate -1000  Inf   -> NaN Invalid_operation

+ddrot809 rotate -Inf   Inf   -> NaN Invalid_operation

+ddrot810 rotate -1     Inf   -> NaN Invalid_operation

+ddrot811 rotate -0     Inf   -> NaN Invalid_operation

+ddrot812 rotate  0     Inf   -> NaN Invalid_operation

+ddrot813 rotate  1     Inf   -> NaN Invalid_operation

+ddrot814 rotate  1000  Inf   -> NaN Invalid_operation

+ddrot815 rotate  Inf   Inf   -> NaN Invalid_operation

+

+ddrot821 rotate  NaN -Inf    ->  NaN

+ddrot822 rotate  NaN -1000   ->  NaN

+ddrot823 rotate  NaN -1      ->  NaN

+ddrot824 rotate  NaN -0      ->  NaN

+ddrot825 rotate  NaN  0      ->  NaN

+ddrot826 rotate  NaN  1      ->  NaN

+ddrot827 rotate  NaN  1000   ->  NaN

+ddrot828 rotate  NaN  Inf    ->  NaN

+ddrot829 rotate  NaN  NaN    ->  NaN

+ddrot830 rotate -Inf  NaN    ->  NaN

+ddrot831 rotate -1000 NaN    ->  NaN

+ddrot832 rotate -1    NaN    ->  NaN

+ddrot833 rotate -0    NaN    ->  NaN

+ddrot834 rotate  0    NaN    ->  NaN

+ddrot835 rotate  1    NaN    ->  NaN

+ddrot836 rotate  1000 NaN    ->  NaN

+ddrot837 rotate  Inf  NaN    ->  NaN

+

+ddrot841 rotate  sNaN -Inf   ->  NaN  Invalid_operation

+ddrot842 rotate  sNaN -1000  ->  NaN  Invalid_operation

+ddrot843 rotate  sNaN -1     ->  NaN  Invalid_operation

+ddrot844 rotate  sNaN -0     ->  NaN  Invalid_operation

+ddrot845 rotate  sNaN  0     ->  NaN  Invalid_operation

+ddrot846 rotate  sNaN  1     ->  NaN  Invalid_operation

+ddrot847 rotate  sNaN  1000  ->  NaN  Invalid_operation

+ddrot848 rotate  sNaN  NaN   ->  NaN  Invalid_operation

+ddrot849 rotate  sNaN sNaN   ->  NaN  Invalid_operation

+ddrot850 rotate  NaN  sNaN   ->  NaN  Invalid_operation

+ddrot851 rotate -Inf  sNaN   ->  NaN  Invalid_operation

+ddrot852 rotate -1000 sNaN   ->  NaN  Invalid_operation

+ddrot853 rotate -1    sNaN   ->  NaN  Invalid_operation

+ddrot854 rotate -0    sNaN   ->  NaN  Invalid_operation

+ddrot855 rotate  0    sNaN   ->  NaN  Invalid_operation

+ddrot856 rotate  1    sNaN   ->  NaN  Invalid_operation

+ddrot857 rotate  1000 sNaN   ->  NaN  Invalid_operation

+ddrot858 rotate  Inf  sNaN   ->  NaN  Invalid_operation

+ddrot859 rotate  NaN  sNaN   ->  NaN  Invalid_operation

+

+-- propagating NaNs

+ddrot861 rotate  NaN1   -Inf    ->  NaN1

+ddrot862 rotate +NaN2   -1000   ->  NaN2

+ddrot863 rotate  NaN3    1000   ->  NaN3

+ddrot864 rotate  NaN4    Inf    ->  NaN4

+ddrot865 rotate  NaN5   +NaN6   ->  NaN5

+ddrot866 rotate -Inf     NaN7   ->  NaN7

+ddrot867 rotate -1000    NaN8   ->  NaN8

+ddrot868 rotate  1000    NaN9   ->  NaN9

+ddrot869 rotate  Inf    +NaN10  ->  NaN10

+ddrot871 rotate  sNaN11  -Inf   ->  NaN11  Invalid_operation

+ddrot872 rotate  sNaN12  -1000  ->  NaN12  Invalid_operation

+ddrot873 rotate  sNaN13   1000  ->  NaN13  Invalid_operation

+ddrot874 rotate  sNaN14   NaN17 ->  NaN14  Invalid_operation

+ddrot875 rotate  sNaN15  sNaN18 ->  NaN15  Invalid_operation

+ddrot876 rotate  NaN16   sNaN19 ->  NaN19  Invalid_operation

+ddrot877 rotate -Inf    +sNaN20 ->  NaN20  Invalid_operation

+ddrot878 rotate -1000    sNaN21 ->  NaN21  Invalid_operation

+ddrot879 rotate  1000    sNaN22 ->  NaN22  Invalid_operation

+ddrot880 rotate  Inf     sNaN23 ->  NaN23  Invalid_operation

+ddrot881 rotate +NaN25  +sNaN24 ->  NaN24  Invalid_operation

+ddrot882 rotate -NaN26    NaN28 -> -NaN26

+ddrot883 rotate -sNaN27  sNaN29 -> -NaN27  Invalid_operation

+ddrot884 rotate  1000    -NaN30 -> -NaN30

+ddrot885 rotate  1000   -sNaN31 -> -NaN31  Invalid_operation