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/ddClass.decTest b/Lib/test/decimaltestdata/ddClass.decTest
new file mode 100644
index 0000000..0b1d1f3
--- /dev/null
+++ b/Lib/test/decimaltestdata/ddClass.decTest
@@ -0,0 +1,76 @@
+------------------------------------------------------------------------

+-- ddClass.decTest -- decDouble Class operations                      --

+-- 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

+

+-- [New 2006.11.27]

+precision:   16

+maxExponent: 384

+minExponent: -383

+extended:    1

+clamp:       1

+rounding:    half_even

+

+ddcla001  class    0                        -> +Zero

+ddcla002  class    0.00                     -> +Zero

+ddcla003  class    0E+5                     -> +Zero

+ddcla004  class    1E-396                   -> +Subnormal

+ddcla005  class  0.1E-383                   -> +Subnormal

+ddcla006  class  0.999999999999999E-383     -> +Subnormal

+ddcla007  class  1.000000000000000E-383     -> +Normal

+ddcla008  class   1E-383                    -> +Normal

+ddcla009  class   1E-100                    -> +Normal

+ddcla010  class   1E-10                     -> +Normal

+ddcla012  class   1E-1                      -> +Normal

+ddcla013  class   1                         -> +Normal

+ddcla014  class   2.50                      -> +Normal

+ddcla015  class   100.100                   -> +Normal

+ddcla016  class   1E+30                     -> +Normal

+ddcla017  class   1E+384                    -> +Normal

+ddcla018  class   9.999999999999999E+384    -> +Normal

+ddcla019  class   Inf                       -> +Infinity

+

+ddcla021  class   -0                        -> -Zero

+ddcla022  class   -0.00                     -> -Zero

+ddcla023  class   -0E+5                     -> -Zero

+ddcla024  class   -1E-396                   -> -Subnormal

+ddcla025  class  -0.1E-383                  -> -Subnormal

+ddcla026  class  -0.999999999999999E-383    -> -Subnormal

+ddcla027  class  -1.000000000000000E-383    -> -Normal

+ddcla028  class  -1E-383                    -> -Normal

+ddcla029  class  -1E-100                    -> -Normal

+ddcla030  class  -1E-10                     -> -Normal

+ddcla032  class  -1E-1                      -> -Normal

+ddcla033  class  -1                         -> -Normal

+ddcla034  class  -2.50                      -> -Normal

+ddcla035  class  -100.100                   -> -Normal

+ddcla036  class  -1E+30                     -> -Normal

+ddcla037  class  -1E+384                    -> -Normal

+ddcla038  class  -9.999999999999999E+384    -> -Normal

+ddcla039  class  -Inf                       -> -Infinity

+

+ddcla041  class   NaN                       -> NaN

+ddcla042  class  -NaN                       -> NaN

+ddcla043  class  +NaN12345                  -> NaN

+ddcla044  class   sNaN                      -> sNaN

+ddcla045  class  -sNaN                      -> sNaN

+ddcla046  class  +sNaN12345                 -> sNaN

+

+

+