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/dqMax.decTest b/Lib/test/decimaltestdata/dqMax.decTest
new file mode 100644
index 0000000..a00ec1c
--- /dev/null
+++ b/Lib/test/decimaltestdata/dqMax.decTest
@@ -0,0 +1,322 @@
+------------------------------------------------------------------------
+-- dqMax.decTest -- decQuad maxnum --
+-- 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
+
+-- we assume that base comparison is tested in compare.decTest, so
+-- these mainly cover special cases and rounding
+extended: 1
+clamp: 1
+precision: 34
+maxExponent: 6144
+minExponent: -6143
+rounding: half_even
+
+-- sanity checks
+dqmax001 max -2 -2 -> -2
+dqmax002 max -2 -1 -> -1
+dqmax003 max -2 0 -> 0
+dqmax004 max -2 1 -> 1
+dqmax005 max -2 2 -> 2
+dqmax006 max -1 -2 -> -1
+dqmax007 max -1 -1 -> -1
+dqmax008 max -1 0 -> 0
+dqmax009 max -1 1 -> 1
+dqmax010 max -1 2 -> 2
+dqmax011 max 0 -2 -> 0
+dqmax012 max 0 -1 -> 0
+dqmax013 max 0 0 -> 0
+dqmax014 max 0 1 -> 1
+dqmax015 max 0 2 -> 2
+dqmax016 max 1 -2 -> 1
+dqmax017 max 1 -1 -> 1
+dqmax018 max 1 0 -> 1
+dqmax019 max 1 1 -> 1
+dqmax020 max 1 2 -> 2
+dqmax021 max 2 -2 -> 2
+dqmax022 max 2 -1 -> 2
+dqmax023 max 2 0 -> 2
+dqmax025 max 2 1 -> 2
+dqmax026 max 2 2 -> 2
+
+-- extended zeros
+dqmax030 max 0 0 -> 0
+dqmax031 max 0 -0 -> 0
+dqmax032 max 0 -0.0 -> 0
+dqmax033 max 0 0.0 -> 0
+dqmax034 max -0 0 -> 0 -- note: -0 = 0, but 0 chosen
+dqmax035 max -0 -0 -> -0
+dqmax036 max -0 -0.0 -> -0.0
+dqmax037 max -0 0.0 -> 0.0
+dqmax038 max 0.0 0 -> 0
+dqmax039 max 0.0 -0 -> 0.0
+dqmax040 max 0.0 -0.0 -> 0.0
+dqmax041 max 0.0 0.0 -> 0.0
+dqmax042 max -0.0 0 -> 0
+dqmax043 max -0.0 -0 -> -0.0
+dqmax044 max -0.0 -0.0 -> -0.0
+dqmax045 max -0.0 0.0 -> 0.0
+
+dqmax050 max -0E1 0E1 -> 0E+1
+dqmax051 max -0E2 0E2 -> 0E+2
+dqmax052 max -0E2 0E1 -> 0E+1
+dqmax053 max -0E1 0E2 -> 0E+2
+dqmax054 max 0E1 -0E1 -> 0E+1
+dqmax055 max 0E2 -0E2 -> 0E+2
+dqmax056 max 0E2 -0E1 -> 0E+2
+dqmax057 max 0E1 -0E2 -> 0E+1
+
+dqmax058 max 0E1 0E1 -> 0E+1
+dqmax059 max 0E2 0E2 -> 0E+2
+dqmax060 max 0E2 0E1 -> 0E+2
+dqmax061 max 0E1 0E2 -> 0E+2
+dqmax062 max -0E1 -0E1 -> -0E+1
+dqmax063 max -0E2 -0E2 -> -0E+2
+dqmax064 max -0E2 -0E1 -> -0E+1
+dqmax065 max -0E1 -0E2 -> -0E+1
+
+-- Specials
+dqmax090 max Inf -Inf -> Infinity
+dqmax091 max Inf -1000 -> Infinity
+dqmax092 max Inf -1 -> Infinity
+dqmax093 max Inf -0 -> Infinity
+dqmax094 max Inf 0 -> Infinity
+dqmax095 max Inf 1 -> Infinity
+dqmax096 max Inf 1000 -> Infinity
+dqmax097 max Inf Inf -> Infinity
+dqmax098 max -1000 Inf -> Infinity
+dqmax099 max -Inf Inf -> Infinity
+dqmax100 max -1 Inf -> Infinity
+dqmax101 max -0 Inf -> Infinity
+dqmax102 max 0 Inf -> Infinity
+dqmax103 max 1 Inf -> Infinity
+dqmax104 max 1000 Inf -> Infinity
+dqmax105 max Inf Inf -> Infinity
+
+dqmax120 max -Inf -Inf -> -Infinity
+dqmax121 max -Inf -1000 -> -1000
+dqmax122 max -Inf -1 -> -1
+dqmax123 max -Inf -0 -> -0
+dqmax124 max -Inf 0 -> 0
+dqmax125 max -Inf 1 -> 1
+dqmax126 max -Inf 1000 -> 1000
+dqmax127 max -Inf Inf -> Infinity
+dqmax128 max -Inf -Inf -> -Infinity
+dqmax129 max -1000 -Inf -> -1000
+dqmax130 max -1 -Inf -> -1
+dqmax131 max -0 -Inf -> -0
+dqmax132 max 0 -Inf -> 0
+dqmax133 max 1 -Inf -> 1
+dqmax134 max 1000 -Inf -> 1000
+dqmax135 max Inf -Inf -> Infinity
+
+-- 2004.08.02 754r chooses number over NaN in mixed cases
+dqmax141 max NaN -Inf -> -Infinity
+dqmax142 max NaN -1000 -> -1000
+dqmax143 max NaN -1 -> -1
+dqmax144 max NaN -0 -> -0
+dqmax145 max NaN 0 -> 0
+dqmax146 max NaN 1 -> 1
+dqmax147 max NaN 1000 -> 1000
+dqmax148 max NaN Inf -> Infinity
+dqmax149 max NaN NaN -> NaN
+dqmax150 max -Inf NaN -> -Infinity
+dqmax151 max -1000 NaN -> -1000
+dqmax152 max -1 NaN -> -1
+dqmax153 max -0 NaN -> -0
+dqmax154 max 0 NaN -> 0
+dqmax155 max 1 NaN -> 1
+dqmax156 max 1000 NaN -> 1000
+dqmax157 max Inf NaN -> Infinity
+
+dqmax161 max sNaN -Inf -> NaN Invalid_operation
+dqmax162 max sNaN -1000 -> NaN Invalid_operation
+dqmax163 max sNaN -1 -> NaN Invalid_operation
+dqmax164 max sNaN -0 -> NaN Invalid_operation
+dqmax165 max sNaN 0 -> NaN Invalid_operation
+dqmax166 max sNaN 1 -> NaN Invalid_operation
+dqmax167 max sNaN 1000 -> NaN Invalid_operation
+dqmax168 max sNaN NaN -> NaN Invalid_operation
+dqmax169 max sNaN sNaN -> NaN Invalid_operation
+dqmax170 max NaN sNaN -> NaN Invalid_operation
+dqmax171 max -Inf sNaN -> NaN Invalid_operation
+dqmax172 max -1000 sNaN -> NaN Invalid_operation
+dqmax173 max -1 sNaN -> NaN Invalid_operation
+dqmax174 max -0 sNaN -> NaN Invalid_operation
+dqmax175 max 0 sNaN -> NaN Invalid_operation
+dqmax176 max 1 sNaN -> NaN Invalid_operation
+dqmax177 max 1000 sNaN -> NaN Invalid_operation
+dqmax178 max Inf sNaN -> NaN Invalid_operation
+dqmax179 max NaN sNaN -> NaN Invalid_operation
+
+-- propagating NaNs
+dqmax181 max NaN9 -Inf -> -Infinity
+dqmax182 max NaN8 9 -> 9
+dqmax183 max -NaN7 Inf -> Infinity
+
+dqmax184 max -NaN1 NaN11 -> -NaN1
+dqmax185 max NaN2 NaN12 -> NaN2
+dqmax186 max -NaN13 -NaN7 -> -NaN13
+dqmax187 max NaN14 -NaN5 -> NaN14
+
+dqmax188 max -Inf NaN4 -> -Infinity
+dqmax189 max -9 -NaN3 -> -9
+dqmax190 max Inf NaN2 -> Infinity
+
+dqmax191 max sNaN99 -Inf -> NaN99 Invalid_operation
+dqmax192 max sNaN98 -1 -> NaN98 Invalid_operation
+dqmax193 max -sNaN97 NaN -> -NaN97 Invalid_operation
+dqmax194 max sNaN96 sNaN94 -> NaN96 Invalid_operation
+dqmax195 max NaN95 sNaN93 -> NaN93 Invalid_operation
+dqmax196 max -Inf sNaN92 -> NaN92 Invalid_operation
+dqmax197 max 0 sNaN91 -> NaN91 Invalid_operation
+dqmax198 max Inf -sNaN90 -> -NaN90 Invalid_operation
+dqmax199 max NaN sNaN89 -> NaN89 Invalid_operation
+
+-- old rounding checks
+dqmax221 max 12345678000 1 -> 12345678000
+dqmax222 max 1 12345678000 -> 12345678000
+dqmax223 max 1234567800 1 -> 1234567800
+dqmax224 max 1 1234567800 -> 1234567800
+dqmax225 max 1234567890 1 -> 1234567890
+dqmax226 max 1 1234567890 -> 1234567890
+dqmax227 max 1234567891 1 -> 1234567891
+dqmax228 max 1 1234567891 -> 1234567891
+dqmax229 max 12345678901 1 -> 12345678901
+dqmax230 max 1 12345678901 -> 12345678901
+dqmax231 max 1234567896 1 -> 1234567896
+dqmax232 max 1 1234567896 -> 1234567896
+dqmax233 max -1234567891 1 -> 1
+dqmax234 max 1 -1234567891 -> 1
+dqmax235 max -12345678901 1 -> 1
+dqmax236 max 1 -12345678901 -> 1
+dqmax237 max -1234567896 1 -> 1
+dqmax238 max 1 -1234567896 -> 1
+
+-- from examples
+dqmax280 max '3' '2' -> '3'
+dqmax281 max '-10' '3' -> '3'
+dqmax282 max '1.0' '1' -> '1'
+dqmax283 max '1' '1.0' -> '1'
+dqmax284 max '7' 'NaN' -> '7'
+
+-- expanded list from min/max 754r purple prose
+-- [explicit tests for exponent ordering]
+dqmax401 max Inf 1.1 -> Infinity
+dqmax402 max 1.1 1 -> 1.1
+dqmax403 max 1 1.0 -> 1
+dqmax404 max 1.0 0.1 -> 1.0
+dqmax405 max 0.1 0.10 -> 0.1
+dqmax406 max 0.10 0.100 -> 0.10
+dqmax407 max 0.10 0 -> 0.10
+dqmax408 max 0 0.0 -> 0
+dqmax409 max 0.0 -0 -> 0.0
+dqmax410 max 0.0 -0.0 -> 0.0
+dqmax411 max 0.00 -0.0 -> 0.00
+dqmax412 max 0.0 -0.00 -> 0.0
+dqmax413 max 0 -0.0 -> 0
+dqmax414 max 0 -0 -> 0
+dqmax415 max -0.0 -0 -> -0.0
+dqmax416 max -0 -0.100 -> -0
+dqmax417 max -0.100 -0.10 -> -0.100
+dqmax418 max -0.10 -0.1 -> -0.10
+dqmax419 max -0.1 -1.0 -> -0.1
+dqmax420 max -1.0 -1 -> -1.0
+dqmax421 max -1 -1.1 -> -1
+dqmax423 max -1.1 -Inf -> -1.1
+-- same with operands reversed
+dqmax431 max 1.1 Inf -> Infinity
+dqmax432 max 1 1.1 -> 1.1
+dqmax433 max 1.0 1 -> 1
+dqmax434 max 0.1 1.0 -> 1.0
+dqmax435 max 0.10 0.1 -> 0.1
+dqmax436 max 0.100 0.10 -> 0.10
+dqmax437 max 0 0.10 -> 0.10
+dqmax438 max 0.0 0 -> 0
+dqmax439 max -0 0.0 -> 0.0
+dqmax440 max -0.0 0.0 -> 0.0
+dqmax441 max -0.0 0.00 -> 0.00
+dqmax442 max -0.00 0.0 -> 0.0
+dqmax443 max -0.0 0 -> 0
+dqmax444 max -0 0 -> 0
+dqmax445 max -0 -0.0 -> -0.0
+dqmax446 max -0.100 -0 -> -0
+dqmax447 max -0.10 -0.100 -> -0.100
+dqmax448 max -0.1 -0.10 -> -0.10
+dqmax449 max -1.0 -0.1 -> -0.1
+dqmax450 max -1 -1.0 -> -1.0
+dqmax451 max -1.1 -1 -> -1
+dqmax453 max -Inf -1.1 -> -1.1
+-- largies
+dqmax460 max 1000 1E+3 -> 1E+3
+dqmax461 max 1E+3 1000 -> 1E+3
+dqmax462 max 1000 -1E+3 -> 1000
+dqmax463 max 1E+3 -1000 -> 1E+3
+dqmax464 max -1000 1E+3 -> 1E+3
+dqmax465 max -1E+3 1000 -> 1000
+dqmax466 max -1000 -1E+3 -> -1000
+dqmax467 max -1E+3 -1000 -> -1000
+
+-- misalignment traps for little-endian
+dqmax471 max 1.0 0.1 -> 1.0
+dqmax472 max 0.1 1.0 -> 1.0
+dqmax473 max 10.0 0.1 -> 10.0
+dqmax474 max 0.1 10.0 -> 10.0
+dqmax475 max 100 1.0 -> 100
+dqmax476 max 1.0 100 -> 100
+dqmax477 max 1000 10.0 -> 1000
+dqmax478 max 10.0 1000 -> 1000
+dqmax479 max 10000 100.0 -> 10000
+dqmax480 max 100.0 10000 -> 10000
+dqmax481 max 100000 1000.0 -> 100000
+dqmax482 max 1000.0 100000 -> 100000
+dqmax483 max 1000000 10000.0 -> 1000000
+dqmax484 max 10000.0 1000000 -> 1000000
+
+-- subnormals
+dqmax510 max 1.00E-6143 0 -> 1.00E-6143
+dqmax511 max 0.1E-6143 0 -> 1E-6144 Subnormal
+dqmax512 max 0.10E-6143 0 -> 1.0E-6144 Subnormal
+dqmax513 max 0.100E-6143 0 -> 1.00E-6144 Subnormal
+dqmax514 max 0.01E-6143 0 -> 1E-6145 Subnormal
+dqmax515 max 0.999E-6143 0 -> 9.99E-6144 Subnormal
+dqmax516 max 0.099E-6143 0 -> 9.9E-6145 Subnormal
+dqmax517 max 0.009E-6143 0 -> 9E-6146 Subnormal
+dqmax518 max 0.001E-6143 0 -> 1E-6146 Subnormal
+dqmax519 max 0.0009E-6143 0 -> 9E-6147 Subnormal
+dqmax520 max 0.0001E-6143 0 -> 1E-6147 Subnormal
+
+dqmax530 max -1.00E-6143 0 -> 0
+dqmax531 max -0.1E-6143 0 -> 0
+dqmax532 max -0.10E-6143 0 -> 0
+dqmax533 max -0.100E-6143 0 -> 0
+dqmax534 max -0.01E-6143 0 -> 0
+dqmax535 max -0.999E-6143 0 -> 0
+dqmax536 max -0.099E-6143 0 -> 0
+dqmax537 max -0.009E-6143 0 -> 0
+dqmax538 max -0.001E-6143 0 -> 0
+dqmax539 max -0.0009E-6143 0 -> 0
+dqmax540 max -0.0001E-6143 0 -> 0
+
+-- Null tests
+dqmax900 max 10 # -> NaN Invalid_operation
+dqmax901 max # 10 -> NaN Invalid_operation
+
+
+