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/copy.decTest b/Lib/test/decimaltestdata/copy.decTest
new file mode 100644
index 0000000..5d4065d
--- /dev/null
+++ b/Lib/test/decimaltestdata/copy.decTest
@@ -0,0 +1,86 @@
+------------------------------------------------------------------------
+-- copy.decTest -- quiet 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
+
+extended: 1
+precision: 9
+rounding: half_up
+maxExponent: 999
+minExponent: -999
+
+-- Sanity check
+cpyx001 copy +7.50 -> 7.50
+
+-- Infinities
+cpyx011 copy Infinity -> Infinity
+cpyx012 copy -Infinity -> -Infinity
+
+-- NaNs, 0 payload
+cpyx021 copy NaN -> NaN
+cpyx022 copy -NaN -> -NaN
+cpyx023 copy sNaN -> sNaN
+cpyx024 copy -sNaN -> -sNaN
+
+-- NaNs, non-0 payload
+cpyx031 copy NaN10 -> NaN10
+cpyx032 copy -NaN10 -> -NaN10
+cpyx033 copy sNaN10 -> sNaN10
+cpyx034 copy -sNaN10 -> -sNaN10
+cpyx035 copy NaN7 -> NaN7
+cpyx036 copy -NaN7 -> -NaN7
+cpyx037 copy sNaN101 -> sNaN101
+cpyx038 copy -sNaN101 -> -sNaN101
+
+-- finites
+cpyx101 copy 7 -> 7
+cpyx102 copy -7 -> -7
+cpyx103 copy 75 -> 75
+cpyx104 copy -75 -> -75
+cpyx105 copy 7.50 -> 7.50
+cpyx106 copy -7.50 -> -7.50
+cpyx107 copy 7.500 -> 7.500
+cpyx108 copy -7.500 -> -7.500
+
+-- zeros
+cpyx111 copy 0 -> 0
+cpyx112 copy -0 -> -0
+cpyx113 copy 0E+4 -> 0E+4
+cpyx114 copy -0E+4 -> -0E+4
+cpyx115 copy 0.0000 -> 0.0000
+cpyx116 copy -0.0000 -> -0.0000
+cpyx117 copy 0E-141 -> 0E-141
+cpyx118 copy -0E-141 -> -0E-141
+
+-- full coefficients, alternating bits
+cpyx121 copy 268268268 -> 268268268
+cpyx122 copy -268268268 -> -268268268
+cpyx123 copy 134134134 -> 134134134
+cpyx124 copy -134134134 -> -134134134
+
+-- Nmax, Nmin, Ntiny
+cpyx131 copy 9.99999999E+999 -> 9.99999999E+999
+cpyx132 copy 1E-999 -> 1E-999
+cpyx133 copy 1.00000000E-999 -> 1.00000000E-999
+cpyx134 copy 1E-1007 -> 1E-1007
+
+cpyx135 copy -1E-1007 -> -1E-1007
+cpyx136 copy -1.00000000E-999 -> -1.00000000E-999
+cpyx137 copy -1E-999 -> -1E-999
+cpyx138 copy -9.99999999E+999 -> -9.99999999E+999