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/nextplus.decTest b/Lib/test/decimaltestdata/nextplus.decTest
new file mode 100644
index 0000000..01815ee
--- /dev/null
+++ b/Lib/test/decimaltestdata/nextplus.decTest
@@ -0,0 +1,150 @@
+------------------------------------------------------------------------
+-- nextplus.decTest -- decimal next that is greater [754r nextup] --
+-- 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: 384
+minexponent: -383
+
+nextp001 nextplus 0.999999995 -> 0.999999996
+nextp002 nextplus 0.999999996 -> 0.999999997
+nextp003 nextplus 0.999999997 -> 0.999999998
+nextp004 nextplus 0.999999998 -> 0.999999999
+nextp005 nextplus 0.999999999 -> 1.00000000
+nextp006 nextplus 1.00000000 -> 1.00000001
+nextp007 nextplus 1.0 -> 1.00000001
+nextp008 nextplus 1 -> 1.00000001
+nextp009 nextplus 1.00000001 -> 1.00000002
+nextp010 nextplus 1.00000002 -> 1.00000003
+nextp011 nextplus 1.00000003 -> 1.00000004
+nextp012 nextplus 1.00000004 -> 1.00000005
+nextp013 nextplus 1.00000005 -> 1.00000006
+nextp014 nextplus 1.00000006 -> 1.00000007
+nextp015 nextplus 1.00000007 -> 1.00000008
+nextp016 nextplus 1.00000008 -> 1.00000009
+nextp017 nextplus 1.00000009 -> 1.00000010
+nextp018 nextplus 1.00000010 -> 1.00000011
+nextp019 nextplus 1.00000011 -> 1.00000012
+
+nextp021 nextplus -0.999999995 -> -0.999999994
+nextp022 nextplus -0.999999996 -> -0.999999995
+nextp023 nextplus -0.999999997 -> -0.999999996
+nextp024 nextplus -0.999999998 -> -0.999999997
+nextp025 nextplus -0.999999999 -> -0.999999998
+nextp026 nextplus -1.00000000 -> -0.999999999
+nextp027 nextplus -1.0 -> -0.999999999
+nextp028 nextplus -1 -> -0.999999999
+nextp029 nextplus -1.00000001 -> -1.00000000
+nextp030 nextplus -1.00000002 -> -1.00000001
+nextp031 nextplus -1.00000003 -> -1.00000002
+nextp032 nextplus -1.00000004 -> -1.00000003
+nextp033 nextplus -1.00000005 -> -1.00000004
+nextp034 nextplus -1.00000006 -> -1.00000005
+nextp035 nextplus -1.00000007 -> -1.00000006
+nextp036 nextplus -1.00000008 -> -1.00000007
+nextp037 nextplus -1.00000009 -> -1.00000008
+nextp038 nextplus -1.00000010 -> -1.00000009
+nextp039 nextplus -1.00000011 -> -1.00000010
+nextp040 nextplus -1.00000012 -> -1.00000011
+
+-- input operand is >precision
+nextp041 nextplus 1.00000010998 -> 1.00000011
+nextp042 nextplus 1.00000010999 -> 1.00000011
+nextp043 nextplus 1.00000011000 -> 1.00000012
+nextp044 nextplus 1.00000011001 -> 1.00000012
+nextp045 nextplus 1.00000011002 -> 1.00000012
+nextp046 nextplus 1.00000011002 -> 1.00000012
+nextp047 nextplus 1.00000011052 -> 1.00000012
+nextp048 nextplus 1.00000011552 -> 1.00000012
+nextp049 nextplus -1.00000010998 -> -1.00000010
+nextp050 nextplus -1.00000010999 -> -1.00000010
+nextp051 nextplus -1.00000011000 -> -1.00000010
+nextp052 nextplus -1.00000011001 -> -1.00000011
+nextp053 nextplus -1.00000011002 -> -1.00000011
+nextp054 nextplus -1.00000011002 -> -1.00000011
+nextp055 nextplus -1.00000011052 -> -1.00000011
+nextp056 nextplus -1.00000011552 -> -1.00000011
+-- ultra-tiny inputs
+nextp060 nextplus 1E-99999 -> 1E-391
+nextp061 nextplus 1E-999999999 -> 1E-391
+nextp062 nextplus 1E-391 -> 2E-391
+nextp063 nextplus -1E-99999 -> -0E-391
+nextp064 nextplus -1E-999999999 -> -0E-391
+nextp065 nextplus -1E-391 -> -0E-391
+
+-- Zeros
+nextp100 nextplus 0 -> 1E-391
+nextp101 nextplus 0.00 -> 1E-391
+nextp102 nextplus 0E-300 -> 1E-391
+nextp103 nextplus 0E+300 -> 1E-391
+nextp104 nextplus 0E+30000 -> 1E-391
+nextp105 nextplus -0 -> 1E-391
+nextp106 nextplus -0.00 -> 1E-391
+nextp107 nextplus -0E-300 -> 1E-391
+nextp108 nextplus -0E+300 -> 1E-391
+nextp109 nextplus -0E+30000 -> 1E-391
+
+maxExponent: 999
+minexponent: -999
+precision: 9
+-- specials
+nextp150 nextplus Inf -> Infinity
+nextp151 nextplus -Inf -> -9.99999999E+999
+nextp152 nextplus NaN -> NaN
+nextp153 nextplus sNaN -> NaN Invalid_operation
+nextp154 nextplus NaN77 -> NaN77
+nextp155 nextplus sNaN88 -> NaN88 Invalid_operation
+nextp156 nextplus -NaN -> -NaN
+nextp157 nextplus -sNaN -> -NaN Invalid_operation
+nextp158 nextplus -NaN77 -> -NaN77
+nextp159 nextplus -sNaN88 -> -NaN88 Invalid_operation
+
+-- Nmax, Nmin, Ntiny, subnormals
+nextp170 nextplus 9.99999999E+999 -> Infinity
+nextp171 nextplus 9.99999998E+999 -> 9.99999999E+999
+nextp172 nextplus 1E-999 -> 1.00000001E-999
+nextp173 nextplus 1.00000000E-999 -> 1.00000001E-999
+nextp174 nextplus 9E-1007 -> 1.0E-1006
+nextp175 nextplus 9.9E-1006 -> 1.00E-1005
+nextp176 nextplus 9.9999E-1003 -> 1.00000E-1002
+nextp177 nextplus 9.9999999E-1000 -> 1.00000000E-999
+nextp178 nextplus 9.9999998E-1000 -> 9.9999999E-1000
+nextp179 nextplus 9.9999997E-1000 -> 9.9999998E-1000
+nextp180 nextplus 0E-1007 -> 1E-1007
+nextp181 nextplus 1E-1007 -> 2E-1007
+nextp182 nextplus 2E-1007 -> 3E-1007
+
+nextp183 nextplus -0E-1007 -> 1E-1007
+nextp184 nextplus -1E-1007 -> -0E-1007
+nextp185 nextplus -2E-1007 -> -1E-1007
+nextp186 nextplus -10E-1007 -> -9E-1007
+nextp187 nextplus -100E-1007 -> -9.9E-1006
+nextp188 nextplus -100000E-1007 -> -9.9999E-1003
+nextp189 nextplus -1.0000E-999 -> -9.9999999E-1000
+nextp190 nextplus -1.00000000E-999 -> -9.9999999E-1000
+nextp191 nextplus -1E-999 -> -9.9999999E-1000
+nextp192 nextplus -9.99999998E+999 -> -9.99999997E+999
+nextp193 nextplus -9.99999999E+999 -> -9.99999998E+999
+
+-- Null tests
+nextp900 nextplus # -> NaN Invalid_operation
+