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/class.decTest b/Lib/test/decimaltestdata/class.decTest
new file mode 100644
index 0000000..77a22e3
--- /dev/null
+++ b/Lib/test/decimaltestdata/class.decTest
@@ -0,0 +1,131 @@
+------------------------------------------------------------------------
+-- class.decTest -- 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: 9
+maxExponent: 999
+minExponent: -999
+extended: 1
+clamp: 1
+rounding: half_even
+
+clasx001 class 0 -> +Zero
+clasx002 class 0.00 -> +Zero
+clasx003 class 0E+5 -> +Zero
+clasx004 class 1E-1007 -> +Subnormal
+clasx005 class 0.1E-999 -> +Subnormal
+clasx006 class 0.99999999E-999 -> +Subnormal
+clasx007 class 1.00000000E-999 -> +Normal
+clasx008 class 1E-999 -> +Normal
+clasx009 class 1E-100 -> +Normal
+clasx010 class 1E-10 -> +Normal
+clasx012 class 1E-1 -> +Normal
+clasx013 class 1 -> +Normal
+clasx014 class 2.50 -> +Normal
+clasx015 class 100.100 -> +Normal
+clasx016 class 1E+30 -> +Normal
+clasx017 class 1E+999 -> +Normal
+clasx018 class 9.99999999E+999 -> +Normal
+clasx019 class Inf -> +Infinity
+
+clasx021 class -0 -> -Zero
+clasx022 class -0.00 -> -Zero
+clasx023 class -0E+5 -> -Zero
+clasx024 class -1E-1007 -> -Subnormal
+clasx025 class -0.1E-999 -> -Subnormal
+clasx026 class -0.99999999E-999 -> -Subnormal
+clasx027 class -1.00000000E-999 -> -Normal
+clasx028 class -1E-999 -> -Normal
+clasx029 class -1E-100 -> -Normal
+clasx030 class -1E-10 -> -Normal
+clasx032 class -1E-1 -> -Normal
+clasx033 class -1 -> -Normal
+clasx034 class -2.50 -> -Normal
+clasx035 class -100.100 -> -Normal
+clasx036 class -1E+30 -> -Normal
+clasx037 class -1E+999 -> -Normal
+clasx038 class -9.99999999E+999 -> -Normal
+clasx039 class -Inf -> -Infinity
+
+clasx041 class NaN -> NaN
+clasx042 class -NaN -> NaN
+clasx043 class +NaN12345 -> NaN
+clasx044 class sNaN -> sNaN
+clasx045 class -sNaN -> sNaN
+clasx046 class +sNaN12345 -> sNaN
+
+
+-- decimal64 bounds
+
+precision: 16
+maxExponent: 384
+minExponent: -383
+clamp: 1
+rounding: half_even
+
+clasx201 class 0 -> +Zero
+clasx202 class 0.00 -> +Zero
+clasx203 class 0E+5 -> +Zero
+clasx204 class 1E-396 -> +Subnormal
+clasx205 class 0.1E-383 -> +Subnormal
+clasx206 class 0.999999999999999E-383 -> +Subnormal
+clasx207 class 1.000000000000000E-383 -> +Normal
+clasx208 class 1E-383 -> +Normal
+clasx209 class 1E-100 -> +Normal
+clasx210 class 1E-10 -> +Normal
+clasx212 class 1E-1 -> +Normal
+clasx213 class 1 -> +Normal
+clasx214 class 2.50 -> +Normal
+clasx215 class 100.100 -> +Normal
+clasx216 class 1E+30 -> +Normal
+clasx217 class 1E+384 -> +Normal
+clasx218 class 9.999999999999999E+384 -> +Normal
+clasx219 class Inf -> +Infinity
+
+clasx221 class -0 -> -Zero
+clasx222 class -0.00 -> -Zero
+clasx223 class -0E+5 -> -Zero
+clasx224 class -1E-396 -> -Subnormal
+clasx225 class -0.1E-383 -> -Subnormal
+clasx226 class -0.999999999999999E-383 -> -Subnormal
+clasx227 class -1.000000000000000E-383 -> -Normal
+clasx228 class -1E-383 -> -Normal
+clasx229 class -1E-100 -> -Normal
+clasx230 class -1E-10 -> -Normal
+clasx232 class -1E-1 -> -Normal
+clasx233 class -1 -> -Normal
+clasx234 class -2.50 -> -Normal
+clasx235 class -100.100 -> -Normal
+clasx236 class -1E+30 -> -Normal
+clasx237 class -1E+384 -> -Normal
+clasx238 class -9.999999999999999E+384 -> -Normal
+clasx239 class -Inf -> -Infinity
+
+clasx241 class NaN -> NaN
+clasx242 class -NaN -> NaN
+clasx243 class +NaN12345 -> NaN
+clasx244 class sNaN -> sNaN
+clasx245 class -sNaN -> sNaN
+clasx246 class +sNaN12345 -> sNaN
+
+
+