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/ddCopy.decTest b/Lib/test/decimaltestdata/ddCopy.decTest
new file mode 100644
index 0000000..49c6824
--- /dev/null
+++ b/Lib/test/decimaltestdata/ddCopy.decTest
@@ -0,0 +1,88 @@
+------------------------------------------------------------------------
+-- ddCopy.decTest -- quiet decDouble copy --
+-- 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
+
+-- All operands and results are decDoubles.
+precision: 16
+maxExponent: 384
+minExponent: -383
+extended: 1
+clamp: 1
+rounding: half_even
+
+-- Sanity check
+ddcpy001 copy +7.50 -> 7.50
+
+-- Infinities
+ddcpy011 copy Infinity -> Infinity
+ddcpy012 copy -Infinity -> -Infinity
+
+-- NaNs, 0 payload
+ddcpy021 copy NaN -> NaN
+ddcpy022 copy -NaN -> -NaN
+ddcpy023 copy sNaN -> sNaN
+ddcpy024 copy -sNaN -> -sNaN
+
+-- NaNs, non-0 payload
+ddcpy031 copy NaN10 -> NaN10
+ddcpy032 copy -NaN10 -> -NaN10
+ddcpy033 copy sNaN10 -> sNaN10
+ddcpy034 copy -sNaN10 -> -sNaN10
+ddcpy035 copy NaN7 -> NaN7
+ddcpy036 copy -NaN7 -> -NaN7
+ddcpy037 copy sNaN101 -> sNaN101
+ddcpy038 copy -sNaN101 -> -sNaN101
+
+-- finites
+ddcpy101 copy 7 -> 7
+ddcpy102 copy -7 -> -7
+ddcpy103 copy 75 -> 75
+ddcpy104 copy -75 -> -75
+ddcpy105 copy 7.50 -> 7.50
+ddcpy106 copy -7.50 -> -7.50
+ddcpy107 copy 7.500 -> 7.500
+ddcpy108 copy -7.500 -> -7.500
+
+-- zeros
+ddcpy111 copy 0 -> 0
+ddcpy112 copy -0 -> -0
+ddcpy113 copy 0E+4 -> 0E+4
+ddcpy114 copy -0E+4 -> -0E+4
+ddcpy115 copy 0.0000 -> 0.0000
+ddcpy116 copy -0.0000 -> -0.0000
+ddcpy117 copy 0E-141 -> 0E-141
+ddcpy118 copy -0E-141 -> -0E-141
+
+-- full coefficients, alternating bits
+ddcpy121 copy 2682682682682682 -> 2682682682682682
+ddcpy122 copy -2682682682682682 -> -2682682682682682
+ddcpy123 copy 1341341341341341 -> 1341341341341341
+ddcpy124 copy -1341341341341341 -> -1341341341341341
+
+-- Nmax, Nmin, Ntiny
+ddcpy131 copy 9.999999999999999E+384 -> 9.999999999999999E+384
+ddcpy132 copy 1E-383 -> 1E-383
+ddcpy133 copy 1.000000000000000E-383 -> 1.000000000000000E-383
+ddcpy134 copy 1E-398 -> 1E-398
+
+ddcpy135 copy -1E-398 -> -1E-398
+ddcpy136 copy -1.000000000000000E-383 -> -1.000000000000000E-383
+ddcpy137 copy -1E-383 -> -1E-383
+ddcpy138 copy -9.999999999999999E+384 -> -9.999999999999999E+384