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/rotate.decTest b/Lib/test/decimaltestdata/rotate.decTest
new file mode 100644
index 0000000..c5ced59
--- /dev/null
+++ b/Lib/test/decimaltestdata/rotate.decTest
@@ -0,0 +1,247 @@
+------------------------------------------------------------------------
+-- rotate.decTest -- rotate coefficient left or right --
+-- 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
+rotx001 rotate 0 0 -> 0
+rotx002 rotate 0 2 -> 0
+rotx003 rotate 1 2 -> 100
+rotx004 rotate 34 8 -> 400000003
+rotx005 rotate 1 9 -> 1
+rotx006 rotate 1 -1 -> 100000000
+rotx007 rotate 123456789 -1 -> 912345678
+rotx008 rotate 123456789 -8 -> 234567891
+rotx009 rotate 123456789 -9 -> 123456789
+rotx010 rotate 0 -2 -> 0
+
+-- rhs must be an integer
+rotx011 rotate 1 1.5 -> NaN Invalid_operation
+rotx012 rotate 1 1.0 -> NaN Invalid_operation
+rotx013 rotate 1 0.1 -> NaN Invalid_operation
+rotx014 rotate 1 0.0 -> NaN Invalid_operation
+rotx015 rotate 1 1E+1 -> NaN Invalid_operation
+rotx016 rotate 1 1E+99 -> NaN Invalid_operation
+rotx017 rotate 1 Inf -> NaN Invalid_operation
+rotx018 rotate 1 -Inf -> NaN Invalid_operation
+-- and |rhs| <= precision
+rotx020 rotate 1 -1000 -> NaN Invalid_operation
+rotx021 rotate 1 -10 -> NaN Invalid_operation
+rotx022 rotate 1 10 -> NaN Invalid_operation
+rotx023 rotate 1 1000 -> NaN Invalid_operation
+
+-- full pattern
+rotx030 rotate 123456789 -9 -> 123456789
+rotx031 rotate 123456789 -8 -> 234567891
+rotx032 rotate 123456789 -7 -> 345678912
+rotx033 rotate 123456789 -6 -> 456789123
+rotx034 rotate 123456789 -5 -> 567891234
+rotx035 rotate 123456789 -4 -> 678912345
+rotx036 rotate 123456789 -3 -> 789123456
+rotx037 rotate 123456789 -2 -> 891234567
+rotx038 rotate 123456789 -1 -> 912345678
+rotx039 rotate 123456789 -0 -> 123456789
+rotx040 rotate 123456789 +0 -> 123456789
+rotx041 rotate 123456789 +1 -> 234567891
+rotx042 rotate 123456789 +2 -> 345678912
+rotx043 rotate 123456789 +3 -> 456789123
+rotx044 rotate 123456789 +4 -> 567891234
+rotx045 rotate 123456789 +5 -> 678912345
+rotx046 rotate 123456789 +6 -> 789123456
+rotx047 rotate 123456789 +7 -> 891234567
+rotx048 rotate 123456789 +8 -> 912345678
+rotx049 rotate 123456789 +9 -> 123456789
+
+-- zeros
+rotx060 rotate 0E-10 +9 -> 0E-10
+rotx061 rotate 0E-10 -9 -> 0E-10
+rotx062 rotate 0.000 +9 -> 0.000
+rotx063 rotate 0.000 -9 -> 0.000
+rotx064 rotate 0E+10 +9 -> 0E+10
+rotx065 rotate 0E+10 -9 -> 0E+10
+rotx066 rotate -0E-10 +9 -> -0E-10
+rotx067 rotate -0E-10 -9 -> -0E-10
+rotx068 rotate -0.000 +9 -> -0.000
+rotx069 rotate -0.000 -9 -> -0.000
+rotx070 rotate -0E+10 +9 -> -0E+10
+rotx071 rotate -0E+10 -9 -> -0E+10
+
+-- Nmax, Nmin, Ntiny
+rotx141 rotate 9.99999999E+999 -1 -> 9.99999999E+999
+rotx142 rotate 9.99999999E+999 -8 -> 9.99999999E+999
+rotx143 rotate 9.99999999E+999 1 -> 9.99999999E+999
+rotx144 rotate 9.99999999E+999 8 -> 9.99999999E+999
+rotx145 rotate 1E-999 -1 -> 1.00000000E-991
+rotx146 rotate 1E-999 -8 -> 1.0E-998
+rotx147 rotate 1E-999 1 -> 1.0E-998
+rotx148 rotate 1E-999 8 -> 1.00000000E-991
+rotx151 rotate 1.00000000E-999 -1 -> 1.0000000E-1000
+rotx152 rotate 1.00000000E-999 -8 -> 1E-1007
+rotx153 rotate 1.00000000E-999 1 -> 1E-1007
+rotx154 rotate 1.00000000E-999 8 -> 1.0000000E-1000
+rotx155 rotate 9.00000000E-999 -1 -> 9.0000000E-1000
+rotx156 rotate 9.00000000E-999 -8 -> 9E-1007
+rotx157 rotate 9.00000000E-999 1 -> 9E-1007
+rotx158 rotate 9.00000000E-999 8 -> 9.0000000E-1000
+rotx160 rotate 1E-1007 -1 -> 1.00000000E-999
+rotx161 rotate 1E-1007 -8 -> 1.0E-1006
+rotx162 rotate 1E-1007 1 -> 1.0E-1006
+rotx163 rotate 1E-1007 8 -> 1.00000000E-999
+-- negatives
+rotx171 rotate -9.99999999E+999 -1 -> -9.99999999E+999
+rotx172 rotate -9.99999999E+999 -8 -> -9.99999999E+999
+rotx173 rotate -9.99999999E+999 1 -> -9.99999999E+999
+rotx174 rotate -9.99999999E+999 8 -> -9.99999999E+999
+rotx175 rotate -1E-999 -1 -> -1.00000000E-991
+rotx176 rotate -1E-999 -8 -> -1.0E-998
+rotx177 rotate -1E-999 1 -> -1.0E-998
+rotx178 rotate -1E-999 8 -> -1.00000000E-991
+rotx181 rotate -1.00000000E-999 -1 -> -1.0000000E-1000
+rotx182 rotate -1.00000000E-999 -8 -> -1E-1007
+rotx183 rotate -1.00000000E-999 1 -> -1E-1007
+rotx184 rotate -1.00000000E-999 8 -> -1.0000000E-1000
+rotx185 rotate -9.00000000E-999 -1 -> -9.0000000E-1000
+rotx186 rotate -9.00000000E-999 -8 -> -9E-1007
+rotx187 rotate -9.00000000E-999 1 -> -9E-1007
+rotx188 rotate -9.00000000E-999 8 -> -9.0000000E-1000
+rotx190 rotate -1E-1007 -1 -> -1.00000000E-999
+rotx191 rotate -1E-1007 -8 -> -1.0E-1006
+rotx192 rotate -1E-1007 1 -> -1.0E-1006
+rotx193 rotate -1E-1007 8 -> -1.00000000E-999
+
+-- more negatives (of sanities)
+rotx201 rotate -0 0 -> -0
+rotx202 rotate -0 2 -> -0
+rotx203 rotate -1 2 -> -100
+rotx204 rotate -1 8 -> -100000000
+rotx205 rotate -1 9 -> -1
+rotx206 rotate -1 -1 -> -100000000
+rotx207 rotate -123456789 -1 -> -912345678
+rotx208 rotate -123456789 -8 -> -234567891
+rotx209 rotate -123456789 -9 -> -123456789
+rotx210 rotate -0 -2 -> -0
+
+-- Specials; NaNs are handled as usual
+rotx781 rotate -Inf -8 -> -Infinity
+rotx782 rotate -Inf -1 -> -Infinity
+rotx783 rotate -Inf -0 -> -Infinity
+rotx784 rotate -Inf 0 -> -Infinity
+rotx785 rotate -Inf 1 -> -Infinity
+rotx786 rotate -Inf 8 -> -Infinity
+rotx787 rotate -1000 -Inf -> NaN Invalid_operation
+rotx788 rotate -Inf -Inf -> NaN Invalid_operation
+rotx789 rotate -1 -Inf -> NaN Invalid_operation
+rotx790 rotate -0 -Inf -> NaN Invalid_operation
+rotx791 rotate 0 -Inf -> NaN Invalid_operation
+rotx792 rotate 1 -Inf -> NaN Invalid_operation
+rotx793 rotate 1000 -Inf -> NaN Invalid_operation
+rotx794 rotate Inf -Inf -> NaN Invalid_operation
+
+rotx800 rotate Inf -Inf -> NaN Invalid_operation
+rotx801 rotate Inf -8 -> Infinity
+rotx802 rotate Inf -1 -> Infinity
+rotx803 rotate Inf -0 -> Infinity
+rotx804 rotate Inf 0 -> Infinity
+rotx805 rotate Inf 1 -> Infinity
+rotx806 rotate Inf 8 -> Infinity
+rotx807 rotate Inf Inf -> NaN Invalid_operation
+rotx808 rotate -1000 Inf -> NaN Invalid_operation
+rotx809 rotate -Inf Inf -> NaN Invalid_operation
+rotx810 rotate -1 Inf -> NaN Invalid_operation
+rotx811 rotate -0 Inf -> NaN Invalid_operation
+rotx812 rotate 0 Inf -> NaN Invalid_operation
+rotx813 rotate 1 Inf -> NaN Invalid_operation
+rotx814 rotate 1000 Inf -> NaN Invalid_operation
+rotx815 rotate Inf Inf -> NaN Invalid_operation
+
+rotx821 rotate NaN -Inf -> NaN
+rotx822 rotate NaN -1000 -> NaN
+rotx823 rotate NaN -1 -> NaN
+rotx824 rotate NaN -0 -> NaN
+rotx825 rotate NaN 0 -> NaN
+rotx826 rotate NaN 1 -> NaN
+rotx827 rotate NaN 1000 -> NaN
+rotx828 rotate NaN Inf -> NaN
+rotx829 rotate NaN NaN -> NaN
+rotx830 rotate -Inf NaN -> NaN
+rotx831 rotate -1000 NaN -> NaN
+rotx832 rotate -1 NaN -> NaN
+rotx833 rotate -0 NaN -> NaN
+rotx834 rotate 0 NaN -> NaN
+rotx835 rotate 1 NaN -> NaN
+rotx836 rotate 1000 NaN -> NaN
+rotx837 rotate Inf NaN -> NaN
+
+
+
+rotx841 rotate sNaN -Inf -> NaN Invalid_operation
+rotx842 rotate sNaN -1000 -> NaN Invalid_operation
+rotx843 rotate sNaN -1 -> NaN Invalid_operation
+rotx844 rotate sNaN -0 -> NaN Invalid_operation
+rotx845 rotate sNaN 0 -> NaN Invalid_operation
+rotx846 rotate sNaN 1 -> NaN Invalid_operation
+rotx847 rotate sNaN 1000 -> NaN Invalid_operation
+rotx848 rotate sNaN NaN -> NaN Invalid_operation
+rotx849 rotate sNaN sNaN -> NaN Invalid_operation
+rotx850 rotate NaN sNaN -> NaN Invalid_operation
+rotx851 rotate -Inf sNaN -> NaN Invalid_operation
+rotx852 rotate -1000 sNaN -> NaN Invalid_operation
+rotx853 rotate -1 sNaN -> NaN Invalid_operation
+rotx854 rotate -0 sNaN -> NaN Invalid_operation
+rotx855 rotate 0 sNaN -> NaN Invalid_operation
+rotx856 rotate 1 sNaN -> NaN Invalid_operation
+rotx857 rotate 1000 sNaN -> NaN Invalid_operation
+rotx858 rotate Inf sNaN -> NaN Invalid_operation
+rotx859 rotate NaN sNaN -> NaN Invalid_operation
+
+-- propagating NaNs
+rotx861 rotate NaN1 -Inf -> NaN1
+rotx862 rotate +NaN2 -1000 -> NaN2
+rotx863 rotate NaN3 1000 -> NaN3
+rotx864 rotate NaN4 Inf -> NaN4
+rotx865 rotate NaN5 +NaN6 -> NaN5
+rotx866 rotate -Inf NaN7 -> NaN7
+rotx867 rotate -1000 NaN8 -> NaN8
+rotx868 rotate 1000 NaN9 -> NaN9
+rotx869 rotate Inf +NaN10 -> NaN10
+rotx871 rotate sNaN11 -Inf -> NaN11 Invalid_operation
+rotx872 rotate sNaN12 -1000 -> NaN12 Invalid_operation
+rotx873 rotate sNaN13 1000 -> NaN13 Invalid_operation
+rotx874 rotate sNaN14 NaN17 -> NaN14 Invalid_operation
+rotx875 rotate sNaN15 sNaN18 -> NaN15 Invalid_operation
+rotx876 rotate NaN16 sNaN19 -> NaN19 Invalid_operation
+rotx877 rotate -Inf +sNaN20 -> NaN20 Invalid_operation
+rotx878 rotate -1000 sNaN21 -> NaN21 Invalid_operation
+rotx879 rotate 1000 sNaN22 -> NaN22 Invalid_operation
+rotx880 rotate Inf sNaN23 -> NaN23 Invalid_operation
+rotx881 rotate +NaN25 +sNaN24 -> NaN24 Invalid_operation
+rotx882 rotate -NaN26 NaN28 -> -NaN26
+rotx883 rotate -sNaN27 sNaN29 -> -NaN27 Invalid_operation
+rotx884 rotate 1000 -NaN30 -> -NaN30
+rotx885 rotate 1000 -sNaN31 -> -NaN31 Invalid_operation
+
+-- payload decapitate
+precision: 5
+rotx886 rotate 11 -sNaN1234567890 -> -NaN67890 Invalid_operation