--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/test/decimaltestdata/ddAdd.decTest Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,1328 @@
+------------------------------------------------------------------------
+-- ddAdd.decTest -- decDouble addition --
+-- Copyright (c) IBM Corporation, 1981, 2008. 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: 2.58
+
+-- This set of tests are for decDoubles only; all arguments are
+-- representable in a decDouble
+precision: 16
+maxExponent: 384
+minExponent: -383
+extended: 1
+clamp: 1
+rounding: half_even
+
+-- [first group are 'quick confidence check']
+ddadd001 add 1 1 -> 2
+ddadd002 add 2 3 -> 5
+ddadd003 add '5.75' '3.3' -> 9.05
+ddadd004 add '5' '-3' -> 2
+ddadd005 add '-5' '-3' -> -8
+ddadd006 add '-7' '2.5' -> -4.5
+ddadd007 add '0.7' '0.3' -> 1.0
+ddadd008 add '1.25' '1.25' -> 2.50
+ddadd009 add '1.23456789' '1.00000000' -> '2.23456789'
+ddadd010 add '1.23456789' '1.00000011' -> '2.23456800'
+
+-- 1234567890123456 1234567890123456
+ddadd011 add '0.4444444444444446' '0.5555555555555555' -> '1.000000000000000' Inexact Rounded
+ddadd012 add '0.4444444444444445' '0.5555555555555555' -> '1.000000000000000' Rounded
+ddadd013 add '0.4444444444444444' '0.5555555555555555' -> '0.9999999999999999'
+ddadd014 add '4444444444444444' '0.49' -> '4444444444444444' Inexact Rounded
+ddadd015 add '4444444444444444' '0.499' -> '4444444444444444' Inexact Rounded
+ddadd016 add '4444444444444444' '0.4999' -> '4444444444444444' Inexact Rounded
+ddadd017 add '4444444444444444' '0.5000' -> '4444444444444444' Inexact Rounded
+ddadd018 add '4444444444444444' '0.5001' -> '4444444444444445' Inexact Rounded
+ddadd019 add '4444444444444444' '0.501' -> '4444444444444445' Inexact Rounded
+ddadd020 add '4444444444444444' '0.51' -> '4444444444444445' Inexact Rounded
+
+ddadd021 add 0 1 -> 1
+ddadd022 add 1 1 -> 2
+ddadd023 add 2 1 -> 3
+ddadd024 add 3 1 -> 4
+ddadd025 add 4 1 -> 5
+ddadd026 add 5 1 -> 6
+ddadd027 add 6 1 -> 7
+ddadd028 add 7 1 -> 8
+ddadd029 add 8 1 -> 9
+ddadd030 add 9 1 -> 10
+
+-- some carrying effects
+ddadd031 add '0.9998' '0.0000' -> '0.9998'
+ddadd032 add '0.9998' '0.0001' -> '0.9999'
+ddadd033 add '0.9998' '0.0002' -> '1.0000'
+ddadd034 add '0.9998' '0.0003' -> '1.0001'
+
+ddadd035 add '70' '10000e+16' -> '1.000000000000000E+20' Inexact Rounded
+ddadd036 add '700' '10000e+16' -> '1.000000000000000E+20' Inexact Rounded
+ddadd037 add '7000' '10000e+16' -> '1.000000000000000E+20' Inexact Rounded
+ddadd038 add '70000' '10000e+16' -> '1.000000000000001E+20' Inexact Rounded
+ddadd039 add '700000' '10000e+16' -> '1.000000000000007E+20' Rounded
+
+-- symmetry:
+ddadd040 add '10000e+16' '70' -> '1.000000000000000E+20' Inexact Rounded
+ddadd041 add '10000e+16' '700' -> '1.000000000000000E+20' Inexact Rounded
+ddadd042 add '10000e+16' '7000' -> '1.000000000000000E+20' Inexact Rounded
+ddadd044 add '10000e+16' '70000' -> '1.000000000000001E+20' Inexact Rounded
+ddadd045 add '10000e+16' '700000' -> '1.000000000000007E+20' Rounded
+
+-- same, without rounding
+ddadd046 add '10000e+9' '7' -> '10000000000007'
+ddadd047 add '10000e+9' '70' -> '10000000000070'
+ddadd048 add '10000e+9' '700' -> '10000000000700'
+ddadd049 add '10000e+9' '7000' -> '10000000007000'
+ddadd050 add '10000e+9' '70000' -> '10000000070000'
+ddadd051 add '10000e+9' '700000' -> '10000000700000'
+ddadd052 add '10000e+9' '7000000' -> '10000007000000'
+
+-- examples from decarith
+ddadd053 add '12' '7.00' -> '19.00'
+ddadd054 add '1.3' '-1.07' -> '0.23'
+ddadd055 add '1.3' '-1.30' -> '0.00'
+ddadd056 add '1.3' '-2.07' -> '-0.77'
+ddadd057 add '1E+2' '1E+4' -> '1.01E+4'
+
+-- leading zero preservation
+ddadd061 add 1 '0.0001' -> '1.0001'
+ddadd062 add 1 '0.00001' -> '1.00001'
+ddadd063 add 1 '0.000001' -> '1.000001'
+ddadd064 add 1 '0.0000001' -> '1.0000001'
+ddadd065 add 1 '0.00000001' -> '1.00000001'
+
+-- some funny zeros [in case of bad signum]
+ddadd070 add 1 0 -> 1
+ddadd071 add 1 0. -> 1
+ddadd072 add 1 .0 -> 1.0
+ddadd073 add 1 0.0 -> 1.0
+ddadd074 add 1 0.00 -> 1.00
+ddadd075 add 0 1 -> 1
+ddadd076 add 0. 1 -> 1
+ddadd077 add .0 1 -> 1.0
+ddadd078 add 0.0 1 -> 1.0
+ddadd079 add 0.00 1 -> 1.00
+
+-- some carries
+ddadd080 add 999999998 1 -> 999999999
+ddadd081 add 999999999 1 -> 1000000000
+ddadd082 add 99999999 1 -> 100000000
+ddadd083 add 9999999 1 -> 10000000
+ddadd084 add 999999 1 -> 1000000
+ddadd085 add 99999 1 -> 100000
+ddadd086 add 9999 1 -> 10000
+ddadd087 add 999 1 -> 1000
+ddadd088 add 99 1 -> 100
+ddadd089 add 9 1 -> 10
+
+
+-- more LHS swaps
+ddadd090 add '-56267E-10' 0 -> '-0.0000056267'
+ddadd091 add '-56267E-6' 0 -> '-0.056267'
+ddadd092 add '-56267E-5' 0 -> '-0.56267'
+ddadd093 add '-56267E-4' 0 -> '-5.6267'
+ddadd094 add '-56267E-3' 0 -> '-56.267'
+ddadd095 add '-56267E-2' 0 -> '-562.67'
+ddadd096 add '-56267E-1' 0 -> '-5626.7'
+ddadd097 add '-56267E-0' 0 -> '-56267'
+ddadd098 add '-5E-10' 0 -> '-5E-10'
+ddadd099 add '-5E-7' 0 -> '-5E-7'
+ddadd100 add '-5E-6' 0 -> '-0.000005'
+ddadd101 add '-5E-5' 0 -> '-0.00005'
+ddadd102 add '-5E-4' 0 -> '-0.0005'
+ddadd103 add '-5E-1' 0 -> '-0.5'
+ddadd104 add '-5E0' 0 -> '-5'
+ddadd105 add '-5E1' 0 -> '-50'
+ddadd106 add '-5E5' 0 -> '-500000'
+ddadd107 add '-5E15' 0 -> '-5000000000000000'
+ddadd108 add '-5E16' 0 -> '-5.000000000000000E+16' Rounded
+ddadd109 add '-5E17' 0 -> '-5.000000000000000E+17' Rounded
+ddadd110 add '-5E18' 0 -> '-5.000000000000000E+18' Rounded
+ddadd111 add '-5E100' 0 -> '-5.000000000000000E+100' Rounded
+
+-- more RHS swaps
+ddadd113 add 0 '-56267E-10' -> '-0.0000056267'
+ddadd114 add 0 '-56267E-6' -> '-0.056267'
+ddadd116 add 0 '-56267E-5' -> '-0.56267'
+ddadd117 add 0 '-56267E-4' -> '-5.6267'
+ddadd119 add 0 '-56267E-3' -> '-56.267'
+ddadd120 add 0 '-56267E-2' -> '-562.67'
+ddadd121 add 0 '-56267E-1' -> '-5626.7'
+ddadd122 add 0 '-56267E-0' -> '-56267'
+ddadd123 add 0 '-5E-10' -> '-5E-10'
+ddadd124 add 0 '-5E-7' -> '-5E-7'
+ddadd125 add 0 '-5E-6' -> '-0.000005'
+ddadd126 add 0 '-5E-5' -> '-0.00005'
+ddadd127 add 0 '-5E-4' -> '-0.0005'
+ddadd128 add 0 '-5E-1' -> '-0.5'
+ddadd129 add 0 '-5E0' -> '-5'
+ddadd130 add 0 '-5E1' -> '-50'
+ddadd131 add 0 '-5E5' -> '-500000'
+ddadd132 add 0 '-5E15' -> '-5000000000000000'
+ddadd133 add 0 '-5E16' -> '-5.000000000000000E+16' Rounded
+ddadd134 add 0 '-5E17' -> '-5.000000000000000E+17' Rounded
+ddadd135 add 0 '-5E18' -> '-5.000000000000000E+18' Rounded
+ddadd136 add 0 '-5E100' -> '-5.000000000000000E+100' Rounded
+
+-- related
+ddadd137 add 1 '0E-19' -> '1.000000000000000' Rounded
+ddadd138 add -1 '0E-19' -> '-1.000000000000000' Rounded
+ddadd139 add '0E-19' 1 -> '1.000000000000000' Rounded
+ddadd140 add '0E-19' -1 -> '-1.000000000000000' Rounded
+ddadd141 add 1E+11 0.0000 -> '100000000000.0000'
+ddadd142 add 1E+11 0.00000 -> '100000000000.0000' Rounded
+ddadd143 add 0.000 1E+12 -> '1000000000000.000'
+ddadd144 add 0.0000 1E+12 -> '1000000000000.000' Rounded
+
+-- [some of the next group are really constructor tests]
+ddadd146 add '00.0' 0 -> '0.0'
+ddadd147 add '0.00' 0 -> '0.00'
+ddadd148 add 0 '0.00' -> '0.00'
+ddadd149 add 0 '00.0' -> '0.0'
+ddadd150 add '00.0' '0.00' -> '0.00'
+ddadd151 add '0.00' '00.0' -> '0.00'
+ddadd152 add '3' '.3' -> '3.3'
+ddadd153 add '3.' '.3' -> '3.3'
+ddadd154 add '3.0' '.3' -> '3.3'
+ddadd155 add '3.00' '.3' -> '3.30'
+ddadd156 add '3' '3' -> '6'
+ddadd157 add '3' '+3' -> '6'
+ddadd158 add '3' '-3' -> '0'
+ddadd159 add '0.3' '-0.3' -> '0.0'
+ddadd160 add '0.03' '-0.03' -> '0.00'
+
+-- try borderline precision, with carries, etc.
+ddadd161 add '1E+12' '-1' -> '999999999999'
+ddadd162 add '1E+12' '1.11' -> '1000000000001.11'
+ddadd163 add '1.11' '1E+12' -> '1000000000001.11'
+ddadd164 add '-1' '1E+12' -> '999999999999'
+ddadd165 add '7E+12' '-1' -> '6999999999999'
+ddadd166 add '7E+12' '1.11' -> '7000000000001.11'
+ddadd167 add '1.11' '7E+12' -> '7000000000001.11'
+ddadd168 add '-1' '7E+12' -> '6999999999999'
+
+rounding: half_up
+-- 1.234567890123456 1234567890123456 1 234567890123456
+ddadd170 add '4.444444444444444' '0.5555555555555567' -> '5.000000000000001' Inexact Rounded
+ddadd171 add '4.444444444444444' '0.5555555555555566' -> '5.000000000000001' Inexact Rounded
+ddadd172 add '4.444444444444444' '0.5555555555555565' -> '5.000000000000001' Inexact Rounded
+ddadd173 add '4.444444444444444' '0.5555555555555564' -> '5.000000000000000' Inexact Rounded
+ddadd174 add '4.444444444444444' '0.5555555555555553' -> '4.999999999999999' Inexact Rounded
+ddadd175 add '4.444444444444444' '0.5555555555555552' -> '4.999999999999999' Inexact Rounded
+ddadd176 add '4.444444444444444' '0.5555555555555551' -> '4.999999999999999' Inexact Rounded
+ddadd177 add '4.444444444444444' '0.5555555555555550' -> '4.999999999999999' Rounded
+ddadd178 add '4.444444444444444' '0.5555555555555545' -> '4.999999999999999' Inexact Rounded
+ddadd179 add '4.444444444444444' '0.5555555555555544' -> '4.999999999999998' Inexact Rounded
+ddadd180 add '4.444444444444444' '0.5555555555555543' -> '4.999999999999998' Inexact Rounded
+ddadd181 add '4.444444444444444' '0.5555555555555542' -> '4.999999999999998' Inexact Rounded
+ddadd182 add '4.444444444444444' '0.5555555555555541' -> '4.999999999999998' Inexact Rounded
+ddadd183 add '4.444444444444444' '0.5555555555555540' -> '4.999999999999998' Rounded
+
+-- and some more, including residue effects and different roundings
+rounding: half_up
+ddadd200 add '1234560123456789' 0 -> '1234560123456789'
+ddadd201 add '1234560123456789' 0.000000001 -> '1234560123456789' Inexact Rounded
+ddadd202 add '1234560123456789' 0.000001 -> '1234560123456789' Inexact Rounded
+ddadd203 add '1234560123456789' 0.1 -> '1234560123456789' Inexact Rounded
+ddadd204 add '1234560123456789' 0.4 -> '1234560123456789' Inexact Rounded
+ddadd205 add '1234560123456789' 0.49 -> '1234560123456789' Inexact Rounded
+ddadd206 add '1234560123456789' 0.499999 -> '1234560123456789' Inexact Rounded
+ddadd207 add '1234560123456789' 0.499999999 -> '1234560123456789' Inexact Rounded
+ddadd208 add '1234560123456789' 0.5 -> '1234560123456790' Inexact Rounded
+ddadd209 add '1234560123456789' 0.500000001 -> '1234560123456790' Inexact Rounded
+ddadd210 add '1234560123456789' 0.500001 -> '1234560123456790' Inexact Rounded
+ddadd211 add '1234560123456789' 0.51 -> '1234560123456790' Inexact Rounded
+ddadd212 add '1234560123456789' 0.6 -> '1234560123456790' Inexact Rounded
+ddadd213 add '1234560123456789' 0.9 -> '1234560123456790' Inexact Rounded
+ddadd214 add '1234560123456789' 0.99999 -> '1234560123456790' Inexact Rounded
+ddadd215 add '1234560123456789' 0.999999999 -> '1234560123456790' Inexact Rounded
+ddadd216 add '1234560123456789' 1 -> '1234560123456790'
+ddadd217 add '1234560123456789' 1.000000001 -> '1234560123456790' Inexact Rounded
+ddadd218 add '1234560123456789' 1.00001 -> '1234560123456790' Inexact Rounded
+ddadd219 add '1234560123456789' 1.1 -> '1234560123456790' Inexact Rounded
+
+rounding: half_even
+ddadd220 add '1234560123456789' 0 -> '1234560123456789'
+ddadd221 add '1234560123456789' 0.000000001 -> '1234560123456789' Inexact Rounded
+ddadd222 add '1234560123456789' 0.000001 -> '1234560123456789' Inexact Rounded
+ddadd223 add '1234560123456789' 0.1 -> '1234560123456789' Inexact Rounded
+ddadd224 add '1234560123456789' 0.4 -> '1234560123456789' Inexact Rounded
+ddadd225 add '1234560123456789' 0.49 -> '1234560123456789' Inexact Rounded
+ddadd226 add '1234560123456789' 0.499999 -> '1234560123456789' Inexact Rounded
+ddadd227 add '1234560123456789' 0.499999999 -> '1234560123456789' Inexact Rounded
+ddadd228 add '1234560123456789' 0.5 -> '1234560123456790' Inexact Rounded
+ddadd229 add '1234560123456789' 0.500000001 -> '1234560123456790' Inexact Rounded
+ddadd230 add '1234560123456789' 0.500001 -> '1234560123456790' Inexact Rounded
+ddadd231 add '1234560123456789' 0.51 -> '1234560123456790' Inexact Rounded
+ddadd232 add '1234560123456789' 0.6 -> '1234560123456790' Inexact Rounded
+ddadd233 add '1234560123456789' 0.9 -> '1234560123456790' Inexact Rounded
+ddadd234 add '1234560123456789' 0.99999 -> '1234560123456790' Inexact Rounded
+ddadd235 add '1234560123456789' 0.999999999 -> '1234560123456790' Inexact Rounded
+ddadd236 add '1234560123456789' 1 -> '1234560123456790'
+ddadd237 add '1234560123456789' 1.00000001 -> '1234560123456790' Inexact Rounded
+ddadd238 add '1234560123456789' 1.00001 -> '1234560123456790' Inexact Rounded
+ddadd239 add '1234560123456789' 1.1 -> '1234560123456790' Inexact Rounded
+-- critical few with even bottom digit...
+ddadd240 add '1234560123456788' 0.499999999 -> '1234560123456788' Inexact Rounded
+ddadd241 add '1234560123456788' 0.5 -> '1234560123456788' Inexact Rounded
+ddadd242 add '1234560123456788' 0.500000001 -> '1234560123456789' Inexact Rounded
+
+rounding: down
+ddadd250 add '1234560123456789' 0 -> '1234560123456789'
+ddadd251 add '1234560123456789' 0.000000001 -> '1234560123456789' Inexact Rounded
+ddadd252 add '1234560123456789' 0.000001 -> '1234560123456789' Inexact Rounded
+ddadd253 add '1234560123456789' 0.1 -> '1234560123456789' Inexact Rounded
+ddadd254 add '1234560123456789' 0.4 -> '1234560123456789' Inexact Rounded
+ddadd255 add '1234560123456789' 0.49 -> '1234560123456789' Inexact Rounded
+ddadd256 add '1234560123456789' 0.499999 -> '1234560123456789' Inexact Rounded
+ddadd257 add '1234560123456789' 0.499999999 -> '1234560123456789' Inexact Rounded
+ddadd258 add '1234560123456789' 0.5 -> '1234560123456789' Inexact Rounded
+ddadd259 add '1234560123456789' 0.500000001 -> '1234560123456789' Inexact Rounded
+ddadd260 add '1234560123456789' 0.500001 -> '1234560123456789' Inexact Rounded
+ddadd261 add '1234560123456789' 0.51 -> '1234560123456789' Inexact Rounded
+ddadd262 add '1234560123456789' 0.6 -> '1234560123456789' Inexact Rounded
+ddadd263 add '1234560123456789' 0.9 -> '1234560123456789' Inexact Rounded
+ddadd264 add '1234560123456789' 0.99999 -> '1234560123456789' Inexact Rounded
+ddadd265 add '1234560123456789' 0.999999999 -> '1234560123456789' Inexact Rounded
+ddadd266 add '1234560123456789' 1 -> '1234560123456790'
+ddadd267 add '1234560123456789' 1.00000001 -> '1234560123456790' Inexact Rounded
+ddadd268 add '1234560123456789' 1.00001 -> '1234560123456790' Inexact Rounded
+ddadd269 add '1234560123456789' 1.1 -> '1234560123456790' Inexact Rounded
+
+-- 1 in last place tests
+rounding: half_up
+ddadd301 add -1 1 -> 0
+ddadd302 add 0 1 -> 1
+ddadd303 add 1 1 -> 2
+ddadd304 add 12 1 -> 13
+ddadd305 add 98 1 -> 99
+ddadd306 add 99 1 -> 100
+ddadd307 add 100 1 -> 101
+ddadd308 add 101 1 -> 102
+ddadd309 add -1 -1 -> -2
+ddadd310 add 0 -1 -> -1
+ddadd311 add 1 -1 -> 0
+ddadd312 add 12 -1 -> 11
+ddadd313 add 98 -1 -> 97
+ddadd314 add 99 -1 -> 98
+ddadd315 add 100 -1 -> 99
+ddadd316 add 101 -1 -> 100
+
+ddadd321 add -0.01 0.01 -> 0.00
+ddadd322 add 0.00 0.01 -> 0.01
+ddadd323 add 0.01 0.01 -> 0.02
+ddadd324 add 0.12 0.01 -> 0.13
+ddadd325 add 0.98 0.01 -> 0.99
+ddadd326 add 0.99 0.01 -> 1.00
+ddadd327 add 1.00 0.01 -> 1.01
+ddadd328 add 1.01 0.01 -> 1.02
+ddadd329 add -0.01 -0.01 -> -0.02
+ddadd330 add 0.00 -0.01 -> -0.01
+ddadd331 add 0.01 -0.01 -> 0.00
+ddadd332 add 0.12 -0.01 -> 0.11
+ddadd333 add 0.98 -0.01 -> 0.97
+ddadd334 add 0.99 -0.01 -> 0.98
+ddadd335 add 1.00 -0.01 -> 0.99
+ddadd336 add 1.01 -0.01 -> 1.00
+
+-- some more cases where adding 0 affects the coefficient
+ddadd340 add 1E+3 0 -> 1000
+ddadd341 add 1E+15 0 -> 1000000000000000
+ddadd342 add 1E+16 0 -> 1.000000000000000E+16 Rounded
+ddadd343 add 1E+20 0 -> 1.000000000000000E+20 Rounded
+-- which simply follow from these cases ...
+ddadd344 add 1E+3 1 -> 1001
+ddadd345 add 1E+15 1 -> 1000000000000001
+ddadd346 add 1E+16 1 -> 1.000000000000000E+16 Inexact Rounded
+ddadd347 add 1E+20 1 -> 1.000000000000000E+20 Inexact Rounded
+ddadd348 add 1E+3 7 -> 1007
+ddadd349 add 1E+15 7 -> 1000000000000007
+ddadd350 add 1E+16 7 -> 1.000000000000001E+16 Inexact Rounded
+ddadd351 add 1E+20 7 -> 1.000000000000000E+20 Inexact Rounded
+
+-- tryzeros cases
+rounding: half_up
+ddadd360 add 0E+50 10000E+1 -> 1.0000E+5
+ddadd361 add 0E-50 10000E+1 -> 100000.0000000000 Rounded
+ddadd362 add 10000E+1 0E-50 -> 100000.0000000000 Rounded
+ddadd363 add 10000E+1 10000E-50 -> 100000.0000000000 Rounded Inexact
+ddadd364 add 9.999999999999999E+384 -9.999999999999999E+384 -> 0E+369
+
+-- a curiosity from JSR 13 testing
+rounding: half_down
+ddadd370 add 999999999999999 815 -> 1000000000000814
+ddadd371 add 9999999999999999 815 -> 1.000000000000081E+16 Rounded Inexact
+rounding: half_up
+ddadd372 add 999999999999999 815 -> 1000000000000814
+ddadd373 add 9999999999999999 815 -> 1.000000000000081E+16 Rounded Inexact
+rounding: half_even
+ddadd374 add 999999999999999 815 -> 1000000000000814
+ddadd375 add 9999999999999999 815 -> 1.000000000000081E+16 Rounded Inexact
+
+-- operands folded
+ddadd380 add 1E+384 1E+384 -> 2.000000000000000E+384 Clamped
+ddadd381 add 1E+380 1E+380 -> 2.00000000000E+380 Clamped
+ddadd382 add 1E+376 1E+376 -> 2.0000000E+376 Clamped
+ddadd383 add 1E+372 1E+372 -> 2.000E+372 Clamped
+ddadd384 add 1E+370 1E+370 -> 2.0E+370 Clamped
+ddadd385 add 1E+369 1E+369 -> 2E+369
+ddadd386 add 1E+368 1E+368 -> 2E+368
+
+-- ulp replacement tests
+ddadd400 add 1 77e-14 -> 1.00000000000077
+ddadd401 add 1 77e-15 -> 1.000000000000077
+ddadd402 add 1 77e-16 -> 1.000000000000008 Inexact Rounded
+ddadd403 add 1 77e-17 -> 1.000000000000001 Inexact Rounded
+ddadd404 add 1 77e-18 -> 1.000000000000000 Inexact Rounded
+ddadd405 add 1 77e-19 -> 1.000000000000000 Inexact Rounded
+ddadd406 add 1 77e-299 -> 1.000000000000000 Inexact Rounded
+
+ddadd410 add 10 77e-14 -> 10.00000000000077
+ddadd411 add 10 77e-15 -> 10.00000000000008 Inexact Rounded
+ddadd412 add 10 77e-16 -> 10.00000000000001 Inexact Rounded
+ddadd413 add 10 77e-17 -> 10.00000000000000 Inexact Rounded
+ddadd414 add 10 77e-18 -> 10.00000000000000 Inexact Rounded
+ddadd415 add 10 77e-19 -> 10.00000000000000 Inexact Rounded
+ddadd416 add 10 77e-299 -> 10.00000000000000 Inexact Rounded
+
+ddadd420 add 77e-14 1 -> 1.00000000000077
+ddadd421 add 77e-15 1 -> 1.000000000000077
+ddadd422 add 77e-16 1 -> 1.000000000000008 Inexact Rounded
+ddadd423 add 77e-17 1 -> 1.000000000000001 Inexact Rounded
+ddadd424 add 77e-18 1 -> 1.000000000000000 Inexact Rounded
+ddadd425 add 77e-19 1 -> 1.000000000000000 Inexact Rounded
+ddadd426 add 77e-299 1 -> 1.000000000000000 Inexact Rounded
+
+ddadd430 add 77e-14 10 -> 10.00000000000077
+ddadd431 add 77e-15 10 -> 10.00000000000008 Inexact Rounded
+ddadd432 add 77e-16 10 -> 10.00000000000001 Inexact Rounded
+ddadd433 add 77e-17 10 -> 10.00000000000000 Inexact Rounded
+ddadd434 add 77e-18 10 -> 10.00000000000000 Inexact Rounded
+ddadd435 add 77e-19 10 -> 10.00000000000000 Inexact Rounded
+ddadd436 add 77e-299 10 -> 10.00000000000000 Inexact Rounded
+
+-- fastpath boundary (more in dqadd)
+-- 1234567890123456
+ddadd539 add '4444444444444444' '3333333333333333' -> '7777777777777777'
+ddadd540 add '4444444444444444' '4444444444444444' -> '8888888888888888'
+ddadd541 add '4444444444444444' '5555555555555555' -> '9999999999999999'
+ddadd542 add '3333333333333333' '4444444444444444' -> '7777777777777777'
+ddadd543 add '4444444444444444' '4444444444444444' -> '8888888888888888'
+ddadd544 add '5555555555555555' '4444444444444444' -> '9999999999999999'
+ddadd545 add '3000004000000000' '3000000000000040' -> '6000004000000040'
+ddadd546 add '3000000400000000' '4000000000000400' -> '7000000400000400'
+ddadd547 add '3000000040000000' '5000000000004000' -> '8000000040004000'
+ddadd548 add '4000000004000000' '3000000000040000' -> '7000000004040000'
+ddadd549 add '4000000000400000' '4000000000400000' -> '8000000000800000'
+ddadd550 add '4000000000040000' '5000000004000000' -> '9000000004040000'
+ddadd551 add '5000000000004000' '3000000040000000' -> '8000000040004000'
+ddadd552 add '5000000000000400' '4000000400000000' -> '9000000400000400'
+ddadd553 add '5000000000000040' '5000004000000000' -> 1.000000400000004E+16 Rounded
+-- check propagation
+ddadd554 add '8999999999999999' '0000000000000001' -> 9000000000000000
+ddadd555 add '0000000000000001' '8999999999999999' -> 9000000000000000
+ddadd556 add '0999999999999999' '0000000000000001' -> 1000000000000000
+ddadd557 add '0000000000000001' '0999999999999999' -> 1000000000000000
+ddadd558 add '4444444444444444' '4555555555555556' -> 9000000000000000
+ddadd559 add '4555555555555556' '4444444444444444' -> 9000000000000000
+
+-- negative ulps
+ddadd6440 add 1 -77e-14 -> 0.99999999999923
+ddadd6441 add 1 -77e-15 -> 0.999999999999923
+ddadd6442 add 1 -77e-16 -> 0.9999999999999923
+ddadd6443 add 1 -77e-17 -> 0.9999999999999992 Inexact Rounded
+ddadd6444 add 1 -77e-18 -> 0.9999999999999999 Inexact Rounded
+ddadd6445 add 1 -77e-19 -> 1.000000000000000 Inexact Rounded
+ddadd6446 add 1 -77e-99 -> 1.000000000000000 Inexact Rounded
+
+ddadd6450 add 10 -77e-14 -> 9.99999999999923
+ddadd6451 add 10 -77e-15 -> 9.999999999999923
+ddadd6452 add 10 -77e-16 -> 9.999999999999992 Inexact Rounded
+ddadd6453 add 10 -77e-17 -> 9.999999999999999 Inexact Rounded
+ddadd6454 add 10 -77e-18 -> 10.00000000000000 Inexact Rounded
+ddadd6455 add 10 -77e-19 -> 10.00000000000000 Inexact Rounded
+ddadd6456 add 10 -77e-99 -> 10.00000000000000 Inexact Rounded
+
+ddadd6460 add -77e-14 1 -> 0.99999999999923
+ddadd6461 add -77e-15 1 -> 0.999999999999923
+ddadd6462 add -77e-16 1 -> 0.9999999999999923
+ddadd6463 add -77e-17 1 -> 0.9999999999999992 Inexact Rounded
+ddadd6464 add -77e-18 1 -> 0.9999999999999999 Inexact Rounded
+ddadd6465 add -77e-19 1 -> 1.000000000000000 Inexact Rounded
+ddadd6466 add -77e-99 1 -> 1.000000000000000 Inexact Rounded
+
+ddadd6470 add -77e-14 10 -> 9.99999999999923
+ddadd6471 add -77e-15 10 -> 9.999999999999923
+ddadd6472 add -77e-16 10 -> 9.999999999999992 Inexact Rounded
+ddadd6473 add -77e-17 10 -> 9.999999999999999 Inexact Rounded
+ddadd6474 add -77e-18 10 -> 10.00000000000000 Inexact Rounded
+ddadd6475 add -77e-19 10 -> 10.00000000000000 Inexact Rounded
+ddadd6476 add -77e-99 10 -> 10.00000000000000 Inexact Rounded
+
+-- negative ulps
+ddadd6480 add -1 77e-14 -> -0.99999999999923
+ddadd6481 add -1 77e-15 -> -0.999999999999923
+ddadd6482 add -1 77e-16 -> -0.9999999999999923
+ddadd6483 add -1 77e-17 -> -0.9999999999999992 Inexact Rounded
+ddadd6484 add -1 77e-18 -> -0.9999999999999999 Inexact Rounded
+ddadd6485 add -1 77e-19 -> -1.000000000000000 Inexact Rounded
+ddadd6486 add -1 77e-99 -> -1.000000000000000 Inexact Rounded
+
+ddadd6490 add -10 77e-14 -> -9.99999999999923
+ddadd6491 add -10 77e-15 -> -9.999999999999923
+ddadd6492 add -10 77e-16 -> -9.999999999999992 Inexact Rounded
+ddadd6493 add -10 77e-17 -> -9.999999999999999 Inexact Rounded
+ddadd6494 add -10 77e-18 -> -10.00000000000000 Inexact Rounded
+ddadd6495 add -10 77e-19 -> -10.00000000000000 Inexact Rounded
+ddadd6496 add -10 77e-99 -> -10.00000000000000 Inexact Rounded
+
+ddadd6500 add 77e-14 -1 -> -0.99999999999923
+ddadd6501 add 77e-15 -1 -> -0.999999999999923
+ddadd6502 add 77e-16 -1 -> -0.9999999999999923
+ddadd6503 add 77e-17 -1 -> -0.9999999999999992 Inexact Rounded
+ddadd6504 add 77e-18 -1 -> -0.9999999999999999 Inexact Rounded
+ddadd6505 add 77e-19 -1 -> -1.000000000000000 Inexact Rounded
+ddadd6506 add 77e-99 -1 -> -1.000000000000000 Inexact Rounded
+
+ddadd6510 add 77e-14 -10 -> -9.99999999999923
+ddadd6511 add 77e-15 -10 -> -9.999999999999923
+ddadd6512 add 77e-16 -10 -> -9.999999999999992 Inexact Rounded
+ddadd6513 add 77e-17 -10 -> -9.999999999999999 Inexact Rounded
+ddadd6514 add 77e-18 -10 -> -10.00000000000000 Inexact Rounded
+ddadd6515 add 77e-19 -10 -> -10.00000000000000 Inexact Rounded
+ddadd6516 add 77e-99 -10 -> -10.00000000000000 Inexact Rounded
+
+-- and some more residue effects and different roundings
+rounding: half_up
+ddadd6540 add '6543210123456789' 0 -> '6543210123456789'
+ddadd6541 add '6543210123456789' 0.000000001 -> '6543210123456789' Inexact Rounded
+ddadd6542 add '6543210123456789' 0.000001 -> '6543210123456789' Inexact Rounded
+ddadd6543 add '6543210123456789' 0.1 -> '6543210123456789' Inexact Rounded
+ddadd6544 add '6543210123456789' 0.4 -> '6543210123456789' Inexact Rounded
+ddadd6545 add '6543210123456789' 0.49 -> '6543210123456789' Inexact Rounded
+ddadd6546 add '6543210123456789' 0.499999 -> '6543210123456789' Inexact Rounded
+ddadd6547 add '6543210123456789' 0.499999999 -> '6543210123456789' Inexact Rounded
+ddadd6548 add '6543210123456789' 0.5 -> '6543210123456790' Inexact Rounded
+ddadd6549 add '6543210123456789' 0.500000001 -> '6543210123456790' Inexact Rounded
+ddadd6550 add '6543210123456789' 0.500001 -> '6543210123456790' Inexact Rounded
+ddadd6551 add '6543210123456789' 0.51 -> '6543210123456790' Inexact Rounded
+ddadd6552 add '6543210123456789' 0.6 -> '6543210123456790' Inexact Rounded
+ddadd6553 add '6543210123456789' 0.9 -> '6543210123456790' Inexact Rounded
+ddadd6554 add '6543210123456789' 0.99999 -> '6543210123456790' Inexact Rounded
+ddadd6555 add '6543210123456789' 0.999999999 -> '6543210123456790' Inexact Rounded
+ddadd6556 add '6543210123456789' 1 -> '6543210123456790'
+ddadd6557 add '6543210123456789' 1.000000001 -> '6543210123456790' Inexact Rounded
+ddadd6558 add '6543210123456789' 1.00001 -> '6543210123456790' Inexact Rounded
+ddadd6559 add '6543210123456789' 1.1 -> '6543210123456790' Inexact Rounded
+
+rounding: half_even
+ddadd6560 add '6543210123456789' 0 -> '6543210123456789'
+ddadd6561 add '6543210123456789' 0.000000001 -> '6543210123456789' Inexact Rounded
+ddadd6562 add '6543210123456789' 0.000001 -> '6543210123456789' Inexact Rounded
+ddadd6563 add '6543210123456789' 0.1 -> '6543210123456789' Inexact Rounded
+ddadd6564 add '6543210123456789' 0.4 -> '6543210123456789' Inexact Rounded
+ddadd6565 add '6543210123456789' 0.49 -> '6543210123456789' Inexact Rounded
+ddadd6566 add '6543210123456789' 0.499999 -> '6543210123456789' Inexact Rounded
+ddadd6567 add '6543210123456789' 0.499999999 -> '6543210123456789' Inexact Rounded
+ddadd6568 add '6543210123456789' 0.5 -> '6543210123456790' Inexact Rounded
+ddadd6569 add '6543210123456789' 0.500000001 -> '6543210123456790' Inexact Rounded
+ddadd6570 add '6543210123456789' 0.500001 -> '6543210123456790' Inexact Rounded
+ddadd6571 add '6543210123456789' 0.51 -> '6543210123456790' Inexact Rounded
+ddadd6572 add '6543210123456789' 0.6 -> '6543210123456790' Inexact Rounded
+ddadd6573 add '6543210123456789' 0.9 -> '6543210123456790' Inexact Rounded
+ddadd6574 add '6543210123456789' 0.99999 -> '6543210123456790' Inexact Rounded
+ddadd6575 add '6543210123456789' 0.999999999 -> '6543210123456790' Inexact Rounded
+ddadd6576 add '6543210123456789' 1 -> '6543210123456790'
+ddadd6577 add '6543210123456789' 1.00000001 -> '6543210123456790' Inexact Rounded
+ddadd6578 add '6543210123456789' 1.00001 -> '6543210123456790' Inexact Rounded
+ddadd6579 add '6543210123456789' 1.1 -> '6543210123456790' Inexact Rounded
+
+-- critical few with even bottom digit...
+ddadd7540 add '6543210123456788' 0.499999999 -> '6543210123456788' Inexact Rounded
+ddadd7541 add '6543210123456788' 0.5 -> '6543210123456788' Inexact Rounded
+ddadd7542 add '6543210123456788' 0.500000001 -> '6543210123456789' Inexact Rounded
+
+rounding: down
+ddadd7550 add '6543210123456789' 0 -> '6543210123456789'
+ddadd7551 add '6543210123456789' 0.000000001 -> '6543210123456789' Inexact Rounded
+ddadd7552 add '6543210123456789' 0.000001 -> '6543210123456789' Inexact Rounded
+ddadd7553 add '6543210123456789' 0.1 -> '6543210123456789' Inexact Rounded
+ddadd7554 add '6543210123456789' 0.4 -> '6543210123456789' Inexact Rounded
+ddadd7555 add '6543210123456789' 0.49 -> '6543210123456789' Inexact Rounded
+ddadd7556 add '6543210123456789' 0.499999 -> '6543210123456789' Inexact Rounded
+ddadd7557 add '6543210123456789' 0.499999999 -> '6543210123456789' Inexact Rounded
+ddadd7558 add '6543210123456789' 0.5 -> '6543210123456789' Inexact Rounded
+ddadd7559 add '6543210123456789' 0.500000001 -> '6543210123456789' Inexact Rounded
+ddadd7560 add '6543210123456789' 0.500001 -> '6543210123456789' Inexact Rounded
+ddadd7561 add '6543210123456789' 0.51 -> '6543210123456789' Inexact Rounded
+ddadd7562 add '6543210123456789' 0.6 -> '6543210123456789' Inexact Rounded
+ddadd7563 add '6543210123456789' 0.9 -> '6543210123456789' Inexact Rounded
+ddadd7564 add '6543210123456789' 0.99999 -> '6543210123456789' Inexact Rounded
+ddadd7565 add '6543210123456789' 0.999999999 -> '6543210123456789' Inexact Rounded
+ddadd7566 add '6543210123456789' 1 -> '6543210123456790'
+ddadd7567 add '6543210123456789' 1.00000001 -> '6543210123456790' Inexact Rounded
+ddadd7568 add '6543210123456789' 1.00001 -> '6543210123456790' Inexact Rounded
+ddadd7569 add '6543210123456789' 1.1 -> '6543210123456790' Inexact Rounded
+
+-- verify a query
+rounding: down
+ddadd7661 add 1e-398 9.000000000000000E+384 -> 9.000000000000000E+384 Inexact Rounded
+ddadd7662 add 0 9.000000000000000E+384 -> 9.000000000000000E+384 Rounded
+ddadd7663 add 1e-388 9.000000000000000E+374 -> 9.000000000000000E+374 Inexact Rounded
+ddadd7664 add 0 9.000000000000000E+374 -> 9.000000000000000E+374 Rounded
+
+-- more zeros, etc.
+rounding: half_even
+
+ddadd7701 add 5.00 1.00E-3 -> 5.00100
+ddadd7702 add 00.00 0.000 -> 0.000
+ddadd7703 add 00.00 0E-3 -> 0.000
+ddadd7704 add 0E-3 00.00 -> 0.000
+
+ddadd7710 add 0E+3 00.00 -> 0.00
+ddadd7711 add 0E+3 00.0 -> 0.0
+ddadd7712 add 0E+3 00. -> 0
+ddadd7713 add 0E+3 00.E+1 -> 0E+1
+ddadd7714 add 0E+3 00.E+2 -> 0E+2
+ddadd7715 add 0E+3 00.E+3 -> 0E+3
+ddadd7716 add 0E+3 00.E+4 -> 0E+3
+ddadd7717 add 0E+3 00.E+5 -> 0E+3
+ddadd7718 add 0E+3 -00.0 -> 0.0
+ddadd7719 add 0E+3 -00. -> 0
+ddadd7731 add 0E+3 -00.E+1 -> 0E+1
+
+ddadd7720 add 00.00 0E+3 -> 0.00
+ddadd7721 add 00.0 0E+3 -> 0.0
+ddadd7722 add 00. 0E+3 -> 0
+ddadd7723 add 00.E+1 0E+3 -> 0E+1
+ddadd7724 add 00.E+2 0E+3 -> 0E+2
+ddadd7725 add 00.E+3 0E+3 -> 0E+3
+ddadd7726 add 00.E+4 0E+3 -> 0E+3
+ddadd7727 add 00.E+5 0E+3 -> 0E+3
+ddadd7728 add -00.00 0E+3 -> 0.00
+ddadd7729 add -00.0 0E+3 -> 0.0
+ddadd7730 add -00. 0E+3 -> 0
+
+ddadd7732 add 0 0 -> 0
+ddadd7733 add 0 -0 -> 0
+ddadd7734 add -0 0 -> 0
+ddadd7735 add -0 -0 -> -0 -- IEEE 854 special case
+
+ddadd7736 add 1 -1 -> 0
+ddadd7737 add -1 -1 -> -2
+ddadd7738 add 1 1 -> 2
+ddadd7739 add -1 1 -> 0
+
+ddadd7741 add 0 -1 -> -1
+ddadd7742 add -0 -1 -> -1
+ddadd7743 add 0 1 -> 1
+ddadd7744 add -0 1 -> 1
+ddadd7745 add -1 0 -> -1
+ddadd7746 add -1 -0 -> -1
+ddadd7747 add 1 0 -> 1
+ddadd7748 add 1 -0 -> 1
+
+ddadd7751 add 0.0 -1 -> -1.0
+ddadd7752 add -0.0 -1 -> -1.0
+ddadd7753 add 0.0 1 -> 1.0
+ddadd7754 add -0.0 1 -> 1.0
+ddadd7755 add -1.0 0 -> -1.0
+ddadd7756 add -1.0 -0 -> -1.0
+ddadd7757 add 1.0 0 -> 1.0
+ddadd7758 add 1.0 -0 -> 1.0
+
+ddadd7761 add 0 -1.0 -> -1.0
+ddadd7762 add -0 -1.0 -> -1.0
+ddadd7763 add 0 1.0 -> 1.0
+ddadd7764 add -0 1.0 -> 1.0
+ddadd7765 add -1 0.0 -> -1.0
+ddadd7766 add -1 -0.0 -> -1.0
+ddadd7767 add 1 0.0 -> 1.0
+ddadd7768 add 1 -0.0 -> 1.0
+
+ddadd7771 add 0.0 -1.0 -> -1.0
+ddadd7772 add -0.0 -1.0 -> -1.0
+ddadd7773 add 0.0 1.0 -> 1.0
+ddadd7774 add -0.0 1.0 -> 1.0
+ddadd7775 add -1.0 0.0 -> -1.0
+ddadd7776 add -1.0 -0.0 -> -1.0
+ddadd7777 add 1.0 0.0 -> 1.0
+ddadd7778 add 1.0 -0.0 -> 1.0
+
+-- Specials
+ddadd7780 add -Inf -Inf -> -Infinity
+ddadd7781 add -Inf -1000 -> -Infinity
+ddadd7782 add -Inf -1 -> -Infinity
+ddadd7783 add -Inf -0 -> -Infinity
+ddadd7784 add -Inf 0 -> -Infinity
+ddadd7785 add -Inf 1 -> -Infinity
+ddadd7786 add -Inf 1000 -> -Infinity
+ddadd7787 add -1000 -Inf -> -Infinity
+ddadd7788 add -Inf -Inf -> -Infinity
+ddadd7789 add -1 -Inf -> -Infinity
+ddadd7790 add -0 -Inf -> -Infinity
+ddadd7791 add 0 -Inf -> -Infinity
+ddadd7792 add 1 -Inf -> -Infinity
+ddadd7793 add 1000 -Inf -> -Infinity
+ddadd7794 add Inf -Inf -> NaN Invalid_operation
+
+ddadd7800 add Inf -Inf -> NaN Invalid_operation
+ddadd7801 add Inf -1000 -> Infinity
+ddadd7802 add Inf -1 -> Infinity
+ddadd7803 add Inf -0 -> Infinity
+ddadd7804 add Inf 0 -> Infinity
+ddadd7805 add Inf 1 -> Infinity
+ddadd7806 add Inf 1000 -> Infinity
+ddadd7807 add Inf Inf -> Infinity
+ddadd7808 add -1000 Inf -> Infinity
+ddadd7809 add -Inf Inf -> NaN Invalid_operation
+ddadd7810 add -1 Inf -> Infinity
+ddadd7811 add -0 Inf -> Infinity
+ddadd7812 add 0 Inf -> Infinity
+ddadd7813 add 1 Inf -> Infinity
+ddadd7814 add 1000 Inf -> Infinity
+ddadd7815 add Inf Inf -> Infinity
+
+ddadd7821 add NaN -Inf -> NaN
+ddadd7822 add NaN -1000 -> NaN
+ddadd7823 add NaN -1 -> NaN
+ddadd7824 add NaN -0 -> NaN
+ddadd7825 add NaN 0 -> NaN
+ddadd7826 add NaN 1 -> NaN
+ddadd7827 add NaN 1000 -> NaN
+ddadd7828 add NaN Inf -> NaN
+ddadd7829 add NaN NaN -> NaN
+ddadd7830 add -Inf NaN -> NaN
+ddadd7831 add -1000 NaN -> NaN
+ddadd7832 add -1 NaN -> NaN
+ddadd7833 add -0 NaN -> NaN
+ddadd7834 add 0 NaN -> NaN
+ddadd7835 add 1 NaN -> NaN
+ddadd7836 add 1000 NaN -> NaN
+ddadd7837 add Inf NaN -> NaN
+
+ddadd7841 add sNaN -Inf -> NaN Invalid_operation
+ddadd7842 add sNaN -1000 -> NaN Invalid_operation
+ddadd7843 add sNaN -1 -> NaN Invalid_operation
+ddadd7844 add sNaN -0 -> NaN Invalid_operation
+ddadd7845 add sNaN 0 -> NaN Invalid_operation
+ddadd7846 add sNaN 1 -> NaN Invalid_operation
+ddadd7847 add sNaN 1000 -> NaN Invalid_operation
+ddadd7848 add sNaN NaN -> NaN Invalid_operation
+ddadd7849 add sNaN sNaN -> NaN Invalid_operation
+ddadd7850 add NaN sNaN -> NaN Invalid_operation
+ddadd7851 add -Inf sNaN -> NaN Invalid_operation
+ddadd7852 add -1000 sNaN -> NaN Invalid_operation
+ddadd7853 add -1 sNaN -> NaN Invalid_operation
+ddadd7854 add -0 sNaN -> NaN Invalid_operation
+ddadd7855 add 0 sNaN -> NaN Invalid_operation
+ddadd7856 add 1 sNaN -> NaN Invalid_operation
+ddadd7857 add 1000 sNaN -> NaN Invalid_operation
+ddadd7858 add Inf sNaN -> NaN Invalid_operation
+ddadd7859 add NaN sNaN -> NaN Invalid_operation
+
+-- propagating NaNs
+ddadd7861 add NaN1 -Inf -> NaN1
+ddadd7862 add +NaN2 -1000 -> NaN2
+ddadd7863 add NaN3 1000 -> NaN3
+ddadd7864 add NaN4 Inf -> NaN4
+ddadd7865 add NaN5 +NaN6 -> NaN5
+ddadd7866 add -Inf NaN7 -> NaN7
+ddadd7867 add -1000 NaN8 -> NaN8
+ddadd7868 add 1000 NaN9 -> NaN9
+ddadd7869 add Inf +NaN10 -> NaN10
+ddadd7871 add sNaN11 -Inf -> NaN11 Invalid_operation
+ddadd7872 add sNaN12 -1000 -> NaN12 Invalid_operation
+ddadd7873 add sNaN13 1000 -> NaN13 Invalid_operation
+ddadd7874 add sNaN14 NaN17 -> NaN14 Invalid_operation
+ddadd7875 add sNaN15 sNaN18 -> NaN15 Invalid_operation
+ddadd7876 add NaN16 sNaN19 -> NaN19 Invalid_operation
+ddadd7877 add -Inf +sNaN20 -> NaN20 Invalid_operation
+ddadd7878 add -1000 sNaN21 -> NaN21 Invalid_operation
+ddadd7879 add 1000 sNaN22 -> NaN22 Invalid_operation
+ddadd7880 add Inf sNaN23 -> NaN23 Invalid_operation
+ddadd7881 add +NaN25 +sNaN24 -> NaN24 Invalid_operation
+ddadd7882 add -NaN26 NaN28 -> -NaN26
+ddadd7883 add -sNaN27 sNaN29 -> -NaN27 Invalid_operation
+ddadd7884 add 1000 -NaN30 -> -NaN30
+ddadd7885 add 1000 -sNaN31 -> -NaN31 Invalid_operation
+
+-- Here we explore near the boundary of rounding a subnormal to Nmin
+ddadd7575 add 1E-383 -1E-398 -> 9.99999999999999E-384 Subnormal
+ddadd7576 add -1E-383 +1E-398 -> -9.99999999999999E-384 Subnormal
+
+-- and another curious case
+ddadd7577 add 7.000000000000E-385 -1.00000E-391 -> 6.999999000000E-385 Subnormal
+
+-- check overflow edge case
+-- 1234567890123456
+ddadd7972 apply 9.999999999999999E+384 -> 9.999999999999999E+384
+ddadd7973 add 9.999999999999999E+384 1 -> 9.999999999999999E+384 Inexact Rounded
+ddadd7974 add 9999999999999999E+369 1 -> 9.999999999999999E+384 Inexact Rounded
+ddadd7975 add 9999999999999999E+369 1E+369 -> Infinity Overflow Inexact Rounded
+ddadd7976 add 9999999999999999E+369 9E+368 -> Infinity Overflow Inexact Rounded
+ddadd7977 add 9999999999999999E+369 8E+368 -> Infinity Overflow Inexact Rounded
+ddadd7978 add 9999999999999999E+369 7E+368 -> Infinity Overflow Inexact Rounded
+ddadd7979 add 9999999999999999E+369 6E+368 -> Infinity Overflow Inexact Rounded
+ddadd7980 add 9999999999999999E+369 5E+368 -> Infinity Overflow Inexact Rounded
+ddadd7981 add 9999999999999999E+369 4E+368 -> 9.999999999999999E+384 Inexact Rounded
+ddadd7982 add 9999999999999999E+369 3E+368 -> 9.999999999999999E+384 Inexact Rounded
+ddadd7983 add 9999999999999999E+369 2E+368 -> 9.999999999999999E+384 Inexact Rounded
+ddadd7984 add 9999999999999999E+369 1E+368 -> 9.999999999999999E+384 Inexact Rounded
+
+ddadd7985 apply -9.999999999999999E+384 -> -9.999999999999999E+384
+ddadd7986 add -9.999999999999999E+384 -1 -> -9.999999999999999E+384 Inexact Rounded
+ddadd7987 add -9999999999999999E+369 -1 -> -9.999999999999999E+384 Inexact Rounded
+ddadd7988 add -9999999999999999E+369 -1E+369 -> -Infinity Overflow Inexact Rounded
+ddadd7989 add -9999999999999999E+369 -9E+368 -> -Infinity Overflow Inexact Rounded
+ddadd7990 add -9999999999999999E+369 -8E+368 -> -Infinity Overflow Inexact Rounded
+ddadd7991 add -9999999999999999E+369 -7E+368 -> -Infinity Overflow Inexact Rounded
+ddadd7992 add -9999999999999999E+369 -6E+368 -> -Infinity Overflow Inexact Rounded
+ddadd7993 add -9999999999999999E+369 -5E+368 -> -Infinity Overflow Inexact Rounded
+ddadd7994 add -9999999999999999E+369 -4E+368 -> -9.999999999999999E+384 Inexact Rounded
+ddadd7995 add -9999999999999999E+369 -3E+368 -> -9.999999999999999E+384 Inexact Rounded
+ddadd7996 add -9999999999999999E+369 -2E+368 -> -9.999999999999999E+384 Inexact Rounded
+ddadd7997 add -9999999999999999E+369 -1E+368 -> -9.999999999999999E+384 Inexact Rounded
+
+-- And for round down full and subnormal results
+rounding: down
+ddadd71100 add 1e+2 -1e-383 -> 99.99999999999999 Rounded Inexact
+ddadd71101 add 1e+1 -1e-383 -> 9.999999999999999 Rounded Inexact
+ddadd71103 add +1 -1e-383 -> 0.9999999999999999 Rounded Inexact
+ddadd71104 add 1e-1 -1e-383 -> 0.09999999999999999 Rounded Inexact
+ddadd71105 add 1e-2 -1e-383 -> 0.009999999999999999 Rounded Inexact
+ddadd71106 add 1e-3 -1e-383 -> 0.0009999999999999999 Rounded Inexact
+ddadd71107 add 1e-4 -1e-383 -> 0.00009999999999999999 Rounded Inexact
+ddadd71108 add 1e-5 -1e-383 -> 0.000009999999999999999 Rounded Inexact
+ddadd71109 add 1e-6 -1e-383 -> 9.999999999999999E-7 Rounded Inexact
+
+rounding: ceiling
+ddadd71110 add -1e+2 +1e-383 -> -99.99999999999999 Rounded Inexact
+ddadd71111 add -1e+1 +1e-383 -> -9.999999999999999 Rounded Inexact
+ddadd71113 add -1 +1e-383 -> -0.9999999999999999 Rounded Inexact
+ddadd71114 add -1e-1 +1e-383 -> -0.09999999999999999 Rounded Inexact
+ddadd71115 add -1e-2 +1e-383 -> -0.009999999999999999 Rounded Inexact
+ddadd71116 add -1e-3 +1e-383 -> -0.0009999999999999999 Rounded Inexact
+ddadd71117 add -1e-4 +1e-383 -> -0.00009999999999999999 Rounded Inexact
+ddadd71118 add -1e-5 +1e-383 -> -0.000009999999999999999 Rounded Inexact
+ddadd71119 add -1e-6 +1e-383 -> -9.999999999999999E-7 Rounded Inexact
+
+-- tests based on Gunnar Degnbol's edge case
+rounding: half_even
+
+ddadd71300 add 1E16 -0.5 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71310 add 1E16 -0.51 -> 9999999999999999 Inexact Rounded
+ddadd71311 add 1E16 -0.501 -> 9999999999999999 Inexact Rounded
+ddadd71312 add 1E16 -0.5001 -> 9999999999999999 Inexact Rounded
+ddadd71313 add 1E16 -0.50001 -> 9999999999999999 Inexact Rounded
+ddadd71314 add 1E16 -0.500001 -> 9999999999999999 Inexact Rounded
+ddadd71315 add 1E16 -0.5000001 -> 9999999999999999 Inexact Rounded
+ddadd71316 add 1E16 -0.50000001 -> 9999999999999999 Inexact Rounded
+ddadd71317 add 1E16 -0.500000001 -> 9999999999999999 Inexact Rounded
+ddadd71318 add 1E16 -0.5000000001 -> 9999999999999999 Inexact Rounded
+ddadd71319 add 1E16 -0.50000000001 -> 9999999999999999 Inexact Rounded
+ddadd71320 add 1E16 -0.500000000001 -> 9999999999999999 Inexact Rounded
+ddadd71321 add 1E16 -0.5000000000001 -> 9999999999999999 Inexact Rounded
+ddadd71322 add 1E16 -0.50000000000001 -> 9999999999999999 Inexact Rounded
+ddadd71323 add 1E16 -0.500000000000001 -> 9999999999999999 Inexact Rounded
+ddadd71324 add 1E16 -0.5000000000000001 -> 9999999999999999 Inexact Rounded
+ddadd71325 add 1E16 -0.5000000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71326 add 1E16 -0.500000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71327 add 1E16 -0.50000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71328 add 1E16 -0.5000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71329 add 1E16 -0.500000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71330 add 1E16 -0.50000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71331 add 1E16 -0.5000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71332 add 1E16 -0.500000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71333 add 1E16 -0.50000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71334 add 1E16 -0.5000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71335 add 1E16 -0.500000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71336 add 1E16 -0.50000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71337 add 1E16 -0.5000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71338 add 1E16 -0.500 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71339 add 1E16 -0.50 -> 1.000000000000000E+16 Inexact Rounded
+
+ddadd71340 add 1E16 -5000000.000010001 -> 9999999995000000 Inexact Rounded
+ddadd71341 add 1E16 -5000000.000000001 -> 9999999995000000 Inexact Rounded
+
+ddadd71349 add 9999999999999999 0.4 -> 9999999999999999 Inexact Rounded
+ddadd71350 add 9999999999999999 0.49 -> 9999999999999999 Inexact Rounded
+ddadd71351 add 9999999999999999 0.499 -> 9999999999999999 Inexact Rounded
+ddadd71352 add 9999999999999999 0.4999 -> 9999999999999999 Inexact Rounded
+ddadd71353 add 9999999999999999 0.49999 -> 9999999999999999 Inexact Rounded
+ddadd71354 add 9999999999999999 0.499999 -> 9999999999999999 Inexact Rounded
+ddadd71355 add 9999999999999999 0.4999999 -> 9999999999999999 Inexact Rounded
+ddadd71356 add 9999999999999999 0.49999999 -> 9999999999999999 Inexact Rounded
+ddadd71357 add 9999999999999999 0.499999999 -> 9999999999999999 Inexact Rounded
+ddadd71358 add 9999999999999999 0.4999999999 -> 9999999999999999 Inexact Rounded
+ddadd71359 add 9999999999999999 0.49999999999 -> 9999999999999999 Inexact Rounded
+ddadd71360 add 9999999999999999 0.499999999999 -> 9999999999999999 Inexact Rounded
+ddadd71361 add 9999999999999999 0.4999999999999 -> 9999999999999999 Inexact Rounded
+ddadd71362 add 9999999999999999 0.49999999999999 -> 9999999999999999 Inexact Rounded
+ddadd71363 add 9999999999999999 0.499999999999999 -> 9999999999999999 Inexact Rounded
+ddadd71364 add 9999999999999999 0.4999999999999999 -> 9999999999999999 Inexact Rounded
+ddadd71365 add 9999999999999999 0.5000000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71367 add 9999999999999999 0.500000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71368 add 9999999999999999 0.50000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71369 add 9999999999999999 0.5000000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71370 add 9999999999999999 0.500000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71371 add 9999999999999999 0.50000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71372 add 9999999999999999 0.5000000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71373 add 9999999999999999 0.500000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71374 add 9999999999999999 0.50000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71375 add 9999999999999999 0.5000000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71376 add 9999999999999999 0.500000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71377 add 9999999999999999 0.50000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71378 add 9999999999999999 0.5000 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71379 add 9999999999999999 0.500 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71380 add 9999999999999999 0.50 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71381 add 9999999999999999 0.5 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71382 add 9999999999999999 0.5000000000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71383 add 9999999999999999 0.500000000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71384 add 9999999999999999 0.50000000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71385 add 9999999999999999 0.5000000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71386 add 9999999999999999 0.500000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71387 add 9999999999999999 0.50000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71388 add 9999999999999999 0.5000000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71389 add 9999999999999999 0.500000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71390 add 9999999999999999 0.50000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71391 add 9999999999999999 0.5000001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71392 add 9999999999999999 0.500001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71393 add 9999999999999999 0.50001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71394 add 9999999999999999 0.5001 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71395 add 9999999999999999 0.501 -> 1.000000000000000E+16 Inexact Rounded
+ddadd71396 add 9999999999999999 0.51 -> 1.000000000000000E+16 Inexact Rounded
+
+-- More GD edge cases, where difference between the unadjusted
+-- exponents is larger than the maximum precision and one side is 0
+ddadd71420 add 0 1.123456789012345 -> 1.123456789012345
+ddadd71421 add 0 1.123456789012345E-1 -> 0.1123456789012345
+ddadd71422 add 0 1.123456789012345E-2 -> 0.01123456789012345
+ddadd71423 add 0 1.123456789012345E-3 -> 0.001123456789012345
+ddadd71424 add 0 1.123456789012345E-4 -> 0.0001123456789012345
+ddadd71425 add 0 1.123456789012345E-5 -> 0.00001123456789012345
+ddadd71426 add 0 1.123456789012345E-6 -> 0.000001123456789012345
+ddadd71427 add 0 1.123456789012345E-7 -> 1.123456789012345E-7
+ddadd71428 add 0 1.123456789012345E-8 -> 1.123456789012345E-8
+ddadd71429 add 0 1.123456789012345E-9 -> 1.123456789012345E-9
+ddadd71430 add 0 1.123456789012345E-10 -> 1.123456789012345E-10
+ddadd71431 add 0 1.123456789012345E-11 -> 1.123456789012345E-11
+ddadd71432 add 0 1.123456789012345E-12 -> 1.123456789012345E-12
+ddadd71433 add 0 1.123456789012345E-13 -> 1.123456789012345E-13
+ddadd71434 add 0 1.123456789012345E-14 -> 1.123456789012345E-14
+ddadd71435 add 0 1.123456789012345E-15 -> 1.123456789012345E-15
+ddadd71436 add 0 1.123456789012345E-16 -> 1.123456789012345E-16
+ddadd71437 add 0 1.123456789012345E-17 -> 1.123456789012345E-17
+ddadd71438 add 0 1.123456789012345E-18 -> 1.123456789012345E-18
+ddadd71439 add 0 1.123456789012345E-19 -> 1.123456789012345E-19
+
+-- same, reversed 0
+ddadd71440 add 1.123456789012345 0 -> 1.123456789012345
+ddadd71441 add 1.123456789012345E-1 0 -> 0.1123456789012345
+ddadd71442 add 1.123456789012345E-2 0 -> 0.01123456789012345
+ddadd71443 add 1.123456789012345E-3 0 -> 0.001123456789012345
+ddadd71444 add 1.123456789012345E-4 0 -> 0.0001123456789012345
+ddadd71445 add 1.123456789012345E-5 0 -> 0.00001123456789012345
+ddadd71446 add 1.123456789012345E-6 0 -> 0.000001123456789012345
+ddadd71447 add 1.123456789012345E-7 0 -> 1.123456789012345E-7
+ddadd71448 add 1.123456789012345E-8 0 -> 1.123456789012345E-8
+ddadd71449 add 1.123456789012345E-9 0 -> 1.123456789012345E-9
+ddadd71450 add 1.123456789012345E-10 0 -> 1.123456789012345E-10
+ddadd71451 add 1.123456789012345E-11 0 -> 1.123456789012345E-11
+ddadd71452 add 1.123456789012345E-12 0 -> 1.123456789012345E-12
+ddadd71453 add 1.123456789012345E-13 0 -> 1.123456789012345E-13
+ddadd71454 add 1.123456789012345E-14 0 -> 1.123456789012345E-14
+ddadd71455 add 1.123456789012345E-15 0 -> 1.123456789012345E-15
+ddadd71456 add 1.123456789012345E-16 0 -> 1.123456789012345E-16
+ddadd71457 add 1.123456789012345E-17 0 -> 1.123456789012345E-17
+ddadd71458 add 1.123456789012345E-18 0 -> 1.123456789012345E-18
+ddadd71459 add 1.123456789012345E-19 0 -> 1.123456789012345E-19
+
+-- same, Es on the 0
+ddadd71460 add 1.123456789012345 0E-0 -> 1.123456789012345
+ddadd71461 add 1.123456789012345 0E-1 -> 1.123456789012345
+ddadd71462 add 1.123456789012345 0E-2 -> 1.123456789012345
+ddadd71463 add 1.123456789012345 0E-3 -> 1.123456789012345
+ddadd71464 add 1.123456789012345 0E-4 -> 1.123456789012345
+ddadd71465 add 1.123456789012345 0E-5 -> 1.123456789012345
+ddadd71466 add 1.123456789012345 0E-6 -> 1.123456789012345
+ddadd71467 add 1.123456789012345 0E-7 -> 1.123456789012345
+ddadd71468 add 1.123456789012345 0E-8 -> 1.123456789012345
+ddadd71469 add 1.123456789012345 0E-9 -> 1.123456789012345
+ddadd71470 add 1.123456789012345 0E-10 -> 1.123456789012345
+ddadd71471 add 1.123456789012345 0E-11 -> 1.123456789012345
+ddadd71472 add 1.123456789012345 0E-12 -> 1.123456789012345
+ddadd71473 add 1.123456789012345 0E-13 -> 1.123456789012345
+ddadd71474 add 1.123456789012345 0E-14 -> 1.123456789012345
+ddadd71475 add 1.123456789012345 0E-15 -> 1.123456789012345
+-- next four flag Rounded because the 0 extends the result
+ddadd71476 add 1.123456789012345 0E-16 -> 1.123456789012345 Rounded
+ddadd71477 add 1.123456789012345 0E-17 -> 1.123456789012345 Rounded
+ddadd71478 add 1.123456789012345 0E-18 -> 1.123456789012345 Rounded
+ddadd71479 add 1.123456789012345 0E-19 -> 1.123456789012345 Rounded
+
+-- sum of two opposite-sign operands is exactly 0 and floor => -0
+rounding: half_up
+-- exact zeros from zeros
+ddadd71500 add 0 0E-19 -> 0E-19
+ddadd71501 add -0 0E-19 -> 0E-19
+ddadd71502 add 0 -0E-19 -> 0E-19
+ddadd71503 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71511 add -11 11 -> 0
+ddadd71512 add 11 -11 -> 0
+
+rounding: half_down
+-- exact zeros from zeros
+ddadd71520 add 0 0E-19 -> 0E-19
+ddadd71521 add -0 0E-19 -> 0E-19
+ddadd71522 add 0 -0E-19 -> 0E-19
+ddadd71523 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71531 add -11 11 -> 0
+ddadd71532 add 11 -11 -> 0
+
+rounding: half_even
+-- exact zeros from zeros
+ddadd71540 add 0 0E-19 -> 0E-19
+ddadd71541 add -0 0E-19 -> 0E-19
+ddadd71542 add 0 -0E-19 -> 0E-19
+ddadd71543 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71551 add -11 11 -> 0
+ddadd71552 add 11 -11 -> 0
+
+rounding: up
+-- exact zeros from zeros
+ddadd71560 add 0 0E-19 -> 0E-19
+ddadd71561 add -0 0E-19 -> 0E-19
+ddadd71562 add 0 -0E-19 -> 0E-19
+ddadd71563 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71571 add -11 11 -> 0
+ddadd71572 add 11 -11 -> 0
+
+rounding: down
+-- exact zeros from zeros
+ddadd71580 add 0 0E-19 -> 0E-19
+ddadd71581 add -0 0E-19 -> 0E-19
+ddadd71582 add 0 -0E-19 -> 0E-19
+ddadd71583 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71591 add -11 11 -> 0
+ddadd71592 add 11 -11 -> 0
+
+rounding: ceiling
+-- exact zeros from zeros
+ddadd71600 add 0 0E-19 -> 0E-19
+ddadd71601 add -0 0E-19 -> 0E-19
+ddadd71602 add 0 -0E-19 -> 0E-19
+ddadd71603 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71611 add -11 11 -> 0
+ddadd71612 add 11 -11 -> 0
+
+-- and the extra-special ugly case; unusual minuses marked by -- *
+rounding: floor
+-- exact zeros from zeros
+ddadd71620 add 0 0E-19 -> 0E-19
+ddadd71621 add -0 0E-19 -> -0E-19 -- *
+ddadd71622 add 0 -0E-19 -> -0E-19 -- *
+ddadd71623 add -0 -0E-19 -> -0E-19
+-- exact zeros from non-zeros
+ddadd71631 add -11 11 -> -0 -- *
+ddadd71632 add 11 -11 -> -0 -- *
+
+-- Examples from SQL proposal (Krishna Kulkarni)
+ddadd71701 add 130E-2 120E-2 -> 2.50
+ddadd71702 add 130E-2 12E-1 -> 2.50
+ddadd71703 add 130E-2 1E0 -> 2.30
+ddadd71704 add 1E2 1E4 -> 1.01E+4
+ddadd71705 add 130E-2 -120E-2 -> 0.10
+ddadd71706 add 130E-2 -12E-1 -> 0.10
+ddadd71707 add 130E-2 -1E0 -> 0.30
+ddadd71708 add 1E2 -1E4 -> -9.9E+3
+
+-- query from Vincent Kulandaisamy
+rounding: ceiling
+ddadd71801 add 7.8822773805862E+277 -5.1757503820663E-21 -> 7.882277380586200E+277 Inexact Rounded
+ddadd71802 add 7.882277380586200E+277 12.341 -> 7.882277380586201E+277 Inexact Rounded
+ddadd71803 add 7.882277380586201E+277 2.7270545046613E-31 -> 7.882277380586202E+277 Inexact Rounded
+
+ddadd71811 add 12.341 -5.1757503820663E-21 -> 12.34100000000000 Inexact Rounded
+ddadd71812 add 12.34100000000000 2.7270545046613E-31 -> 12.34100000000001 Inexact Rounded
+ddadd71813 add 12.34100000000001 7.8822773805862E+277 -> 7.882277380586201E+277 Inexact Rounded
+
+-- Gappy coefficients; check residue handling even with full coefficient gap
+rounding: half_even
+
+ddadd75001 add 1234567890123456 1 -> 1234567890123457
+ddadd75002 add 1234567890123456 0.6 -> 1234567890123457 Inexact Rounded
+ddadd75003 add 1234567890123456 0.06 -> 1234567890123456 Inexact Rounded
+ddadd75004 add 1234567890123456 6E-3 -> 1234567890123456 Inexact Rounded
+ddadd75005 add 1234567890123456 6E-4 -> 1234567890123456 Inexact Rounded
+ddadd75006 add 1234567890123456 6E-5 -> 1234567890123456 Inexact Rounded
+ddadd75007 add 1234567890123456 6E-6 -> 1234567890123456 Inexact Rounded
+ddadd75008 add 1234567890123456 6E-7 -> 1234567890123456 Inexact Rounded
+ddadd75009 add 1234567890123456 6E-8 -> 1234567890123456 Inexact Rounded
+ddadd75010 add 1234567890123456 6E-9 -> 1234567890123456 Inexact Rounded
+ddadd75011 add 1234567890123456 6E-10 -> 1234567890123456 Inexact Rounded
+ddadd75012 add 1234567890123456 6E-11 -> 1234567890123456 Inexact Rounded
+ddadd75013 add 1234567890123456 6E-12 -> 1234567890123456 Inexact Rounded
+ddadd75014 add 1234567890123456 6E-13 -> 1234567890123456 Inexact Rounded
+ddadd75015 add 1234567890123456 6E-14 -> 1234567890123456 Inexact Rounded
+ddadd75016 add 1234567890123456 6E-15 -> 1234567890123456 Inexact Rounded
+ddadd75017 add 1234567890123456 6E-16 -> 1234567890123456 Inexact Rounded
+ddadd75018 add 1234567890123456 6E-17 -> 1234567890123456 Inexact Rounded
+ddadd75019 add 1234567890123456 6E-18 -> 1234567890123456 Inexact Rounded
+ddadd75020 add 1234567890123456 6E-19 -> 1234567890123456 Inexact Rounded
+ddadd75021 add 1234567890123456 6E-20 -> 1234567890123456 Inexact Rounded
+
+-- widening second argument at gap
+ddadd75030 add 12345678 1 -> 12345679
+ddadd75031 add 12345678 0.1 -> 12345678.1
+ddadd75032 add 12345678 0.12 -> 12345678.12
+ddadd75033 add 12345678 0.123 -> 12345678.123
+ddadd75034 add 12345678 0.1234 -> 12345678.1234
+ddadd75035 add 12345678 0.12345 -> 12345678.12345
+ddadd75036 add 12345678 0.123456 -> 12345678.123456
+ddadd75037 add 12345678 0.1234567 -> 12345678.1234567
+ddadd75038 add 12345678 0.12345678 -> 12345678.12345678
+ddadd75039 add 12345678 0.123456789 -> 12345678.12345679 Inexact Rounded
+ddadd75040 add 12345678 0.123456785 -> 12345678.12345678 Inexact Rounded
+ddadd75041 add 12345678 0.1234567850 -> 12345678.12345678 Inexact Rounded
+ddadd75042 add 12345678 0.1234567851 -> 12345678.12345679 Inexact Rounded
+ddadd75043 add 12345678 0.12345678501 -> 12345678.12345679 Inexact Rounded
+ddadd75044 add 12345678 0.123456785001 -> 12345678.12345679 Inexact Rounded
+ddadd75045 add 12345678 0.1234567850001 -> 12345678.12345679 Inexact Rounded
+ddadd75046 add 12345678 0.12345678500001 -> 12345678.12345679 Inexact Rounded
+ddadd75047 add 12345678 0.123456785000001 -> 12345678.12345679 Inexact Rounded
+ddadd75048 add 12345678 0.1234567850000001 -> 12345678.12345679 Inexact Rounded
+ddadd75049 add 12345678 0.1234567850000000 -> 12345678.12345678 Inexact Rounded
+-- 90123456
+rounding: half_even
+ddadd75050 add 12345678 0.0234567750000000 -> 12345678.02345678 Inexact Rounded
+ddadd75051 add 12345678 0.0034567750000000 -> 12345678.00345678 Inexact Rounded
+ddadd75052 add 12345678 0.0004567750000000 -> 12345678.00045678 Inexact Rounded
+ddadd75053 add 12345678 0.0000567750000000 -> 12345678.00005678 Inexact Rounded
+ddadd75054 add 12345678 0.0000067750000000 -> 12345678.00000678 Inexact Rounded
+ddadd75055 add 12345678 0.0000007750000000 -> 12345678.00000078 Inexact Rounded
+ddadd75056 add 12345678 0.0000000750000000 -> 12345678.00000008 Inexact Rounded
+ddadd75057 add 12345678 0.0000000050000000 -> 12345678.00000000 Inexact Rounded
+ddadd75060 add 12345678 0.0234567750000001 -> 12345678.02345678 Inexact Rounded
+ddadd75061 add 12345678 0.0034567750000001 -> 12345678.00345678 Inexact Rounded
+ddadd75062 add 12345678 0.0004567750000001 -> 12345678.00045678 Inexact Rounded
+ddadd75063 add 12345678 0.0000567750000001 -> 12345678.00005678 Inexact Rounded
+ddadd75064 add 12345678 0.0000067750000001 -> 12345678.00000678 Inexact Rounded
+ddadd75065 add 12345678 0.0000007750000001 -> 12345678.00000078 Inexact Rounded
+ddadd75066 add 12345678 0.0000000750000001 -> 12345678.00000008 Inexact Rounded
+ddadd75067 add 12345678 0.0000000050000001 -> 12345678.00000001 Inexact Rounded
+-- far-out residues (full coefficient gap is 16+15 digits)
+rounding: up
+ddadd75070 add 12345678 1E-8 -> 12345678.00000001
+ddadd75071 add 12345678 1E-9 -> 12345678.00000001 Inexact Rounded
+ddadd75072 add 12345678 1E-10 -> 12345678.00000001 Inexact Rounded
+ddadd75073 add 12345678 1E-11 -> 12345678.00000001 Inexact Rounded
+ddadd75074 add 12345678 1E-12 -> 12345678.00000001 Inexact Rounded
+ddadd75075 add 12345678 1E-13 -> 12345678.00000001 Inexact Rounded
+ddadd75076 add 12345678 1E-14 -> 12345678.00000001 Inexact Rounded
+ddadd75077 add 12345678 1E-15 -> 12345678.00000001 Inexact Rounded
+ddadd75078 add 12345678 1E-16 -> 12345678.00000001 Inexact Rounded
+ddadd75079 add 12345678 1E-17 -> 12345678.00000001 Inexact Rounded
+ddadd75080 add 12345678 1E-18 -> 12345678.00000001 Inexact Rounded
+ddadd75081 add 12345678 1E-19 -> 12345678.00000001 Inexact Rounded
+ddadd75082 add 12345678 1E-20 -> 12345678.00000001 Inexact Rounded
+ddadd75083 add 12345678 1E-25 -> 12345678.00000001 Inexact Rounded
+ddadd75084 add 12345678 1E-30 -> 12345678.00000001 Inexact Rounded
+ddadd75085 add 12345678 1E-31 -> 12345678.00000001 Inexact Rounded
+ddadd75086 add 12345678 1E-32 -> 12345678.00000001 Inexact Rounded
+ddadd75087 add 12345678 1E-33 -> 12345678.00000001 Inexact Rounded
+ddadd75088 add 12345678 1E-34 -> 12345678.00000001 Inexact Rounded
+ddadd75089 add 12345678 1E-35 -> 12345678.00000001 Inexact Rounded
+
+-- Punit's
+ddadd75100 add 1.000 -200.000 -> -199.000
+
+-- Rounding swathe
+rounding: half_even
+ddadd81100 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81101 add .2301 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81102 add .2310 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81103 add .2350 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81104 add .2351 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81105 add .2450 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81106 add .2451 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81107 add .2360 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81108 add .2370 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81109 add .2399 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81120 add 9999999999999999E+369 9E+369 -> Infinity Overflow Inexact Rounded
+ddadd81121 add -9999999999999999E+369 -9E+369 -> -Infinity Overflow Inexact Rounded
+
+rounding: half_up
+ddadd81200 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81201 add .2301 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81202 add .2310 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81203 add .2350 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81204 add .2351 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81205 add .2450 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81206 add .2451 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81207 add .2360 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81208 add .2370 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81209 add .2399 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81220 add 9999999999999999E+369 9E+369 -> Infinity Overflow Inexact Rounded
+ddadd81221 add -9999999999999999E+369 -9E+369 -> -Infinity Overflow Inexact Rounded
+
+rounding: half_down
+ddadd81300 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81301 add .2301 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81302 add .2310 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81303 add .2350 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81304 add .2351 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81305 add .2450 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81306 add .2451 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81307 add .2360 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81308 add .2370 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81309 add .2399 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81320 add 9999999999999999E+369 9E+369 -> Infinity Overflow Inexact Rounded
+ddadd81321 add -9999999999999999E+369 -9E+369 -> -Infinity Overflow Inexact Rounded
+
+rounding: up
+ddadd81400 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81401 add .2301 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81402 add .2310 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81403 add .2350 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81404 add .2351 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81405 add .2450 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81406 add .2451 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81407 add .2360 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81408 add .2370 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81409 add .2399 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81411 add -.2399 -12345678901234.00 -> -12345678901234.24 Inexact Rounded
+ddadd81420 add 9999999999999999E+369 9E+369 -> Infinity Overflow Inexact Rounded
+ddadd81421 add -9999999999999999E+369 -9E+369 -> -Infinity Overflow Inexact Rounded
+
+rounding: down
+ddadd81500 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81501 add .2301 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81502 add .2310 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81503 add .2350 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81504 add .2351 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81505 add .2450 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81506 add .2451 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81507 add .2360 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81508 add .2370 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81509 add .2399 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81511 add -.2399 -12345678901234.00 -> -12345678901234.23 Inexact Rounded
+ddadd81520 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded
+ddadd81521 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded
+
+rounding: ceiling
+ddadd81600 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81601 add .2301 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81602 add .2310 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81603 add .2350 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81604 add .2351 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81605 add .2450 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81606 add .2451 12345678901234.00 -> 12345678901234.25 Inexact Rounded
+ddadd81607 add .2360 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81608 add .2370 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81609 add .2399 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81611 add -.2399 -12345678901234.00 -> -12345678901234.23 Inexact Rounded
+ddadd81620 add 9999999999999999E+369 9E+369 -> Infinity Overflow Inexact Rounded
+ddadd81621 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded
+
+rounding: floor
+ddadd81700 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
+ddadd81701 add .2301 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81702 add .2310 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81703 add .2350 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81704 add .2351 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81705 add .2450 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81706 add .2451 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd81707 add .2360 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81708 add .2370 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81709 add .2399 12345678901234.00 -> 12345678901234.23 Inexact Rounded
+ddadd81711 add -.2399 -12345678901234.00 -> -12345678901234.24 Inexact Rounded
+ddadd81720 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded
+ddadd81721 add -9999999999999999E+369 -9E+369 -> -Infinity Overflow Inexact Rounded
+
+rounding: 05up
+ddadd81800 add .2000 12345678901234.00 -> 12345678901234.20 Rounded
+ddadd81801 add .2001 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81802 add .2010 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81803 add .2050 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81804 add .2051 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81807 add .2060 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81808 add .2070 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81809 add .2099 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81811 add -.2099 -12345678901234.00 -> -12345678901234.21 Inexact Rounded
+ddadd81820 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded
+ddadd81821 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded
+
+ddadd81900 add .2100 12345678901234.00 -> 12345678901234.21 Rounded
+ddadd81901 add .2101 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81902 add .2110 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81903 add .2150 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81904 add .2151 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81907 add .2160 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81908 add .2170 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81909 add .2199 12345678901234.00 -> 12345678901234.21 Inexact Rounded
+ddadd81911 add -.2199 -12345678901234.00 -> -12345678901234.21 Inexact Rounded
+
+ddadd82000 add .2400 12345678901234.00 -> 12345678901234.24 Rounded
+ddadd82001 add .2401 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82002 add .2410 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82003 add .2450 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82004 add .2451 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82007 add .2460 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82008 add .2470 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82009 add .2499 12345678901234.00 -> 12345678901234.24 Inexact Rounded
+ddadd82011 add -.2499 -12345678901234.00 -> -12345678901234.24 Inexact Rounded
+
+ddadd82100 add .2500 12345678901234.00 -> 12345678901234.25 Rounded
+ddadd82101 add .2501 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82102 add .2510 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82103 add .2550 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82104 add .2551 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82107 add .2560 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82108 add .2570 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82109 add .2599 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82111 add -.2599 -12345678901234.00 -> -12345678901234.26 Inexact Rounded
+
+ddadd82200 add .2600 12345678901234.00 -> 12345678901234.26 Rounded
+ddadd82201 add .2601 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82202 add .2610 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82203 add .2650 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82204 add .2651 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82207 add .2660 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82208 add .2670 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82209 add .2699 12345678901234.00 -> 12345678901234.26 Inexact Rounded
+ddadd82211 add -.2699 -12345678901234.00 -> -12345678901234.26 Inexact Rounded
+
+ddadd82300 add .2900 12345678901234.00 -> 12345678901234.29 Rounded
+ddadd82301 add .2901 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82302 add .2910 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82303 add .2950 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82304 add .2951 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82307 add .2960 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82308 add .2970 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82309 add .2999 12345678901234.00 -> 12345678901234.29 Inexact Rounded
+ddadd82311 add -.2999 -12345678901234.00 -> -12345678901234.29 Inexact Rounded
+
+-- Null tests
+ddadd9990 add 10 # -> NaN Invalid_operation
+ddadd9991 add # 10 -> NaN Invalid_operation