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| author | Facundo Batista <facundobatista@gmail.com> | 2007-09-13 18:13:15 +0000 |
|---|---|---|
| committer | Facundo Batista <facundobatista@gmail.com> | 2007-09-13 18:13:15 +0000 |
| commit | 40b4bec03f1614d548701a67050ae6878f67b533 (patch) | |
| tree | b8f65f6bcdb1c9639856220f6cf44395f17ebc2b /Lib/test/decimaltestdata/maxmag.decTest | |
| parent | c8e2b615e386785ed84939693a40ae5b077b41c9 (diff) | |
| download | cpython-40b4bec03f1614d548701a67050ae6878f67b533.tar.gz | |
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.
Diffstat (limited to 'Lib/test/decimaltestdata/maxmag.decTest')
| -rw-r--r-- | Lib/test/decimaltestdata/maxmag.decTest | 404 |
1 files changed, 404 insertions, 0 deletions
diff --git a/Lib/test/decimaltestdata/maxmag.decTest b/Lib/test/decimaltestdata/maxmag.decTest new file mode 100644 index 0000000000..b14d015e41 --- /dev/null +++ b/Lib/test/decimaltestdata/maxmag.decTest @@ -0,0 +1,404 @@ +------------------------------------------------------------------------
+-- maxmag.decTest -- decimal maximum by magnitude --
+-- 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
+precision: 9
+rounding: half_up
+maxExponent: 384
+minexponent: -383
+
+-- sanity checks
+mxgx001 maxmag -2 -2 -> -2
+mxgx002 maxmag -2 -1 -> -2
+mxgx003 maxmag -2 0 -> -2
+mxgx004 maxmag -2 1 -> -2
+mxgx005 maxmag -2 2 -> 2
+mxgx006 maxmag -1 -2 -> -2
+mxgx007 maxmag -1 -1 -> -1
+mxgx008 maxmag -1 0 -> -1
+mxgx009 maxmag -1 1 -> 1
+mxgx010 maxmag -1 2 -> 2
+mxgx011 maxmag 0 -2 -> -2
+mxgx012 maxmag 0 -1 -> -1
+mxgx013 maxmag 0 0 -> 0
+mxgx014 maxmag 0 1 -> 1
+mxgx015 maxmag 0 2 -> 2
+mxgx016 maxmag 1 -2 -> -2
+mxgx017 maxmag 1 -1 -> 1
+mxgx018 maxmag 1 0 -> 1
+mxgx019 maxmag 1 1 -> 1
+mxgx020 maxmag 1 2 -> 2
+mxgx021 maxmag 2 -2 -> 2
+mxgx022 maxmag 2 -1 -> 2
+mxgx023 maxmag 2 0 -> 2
+mxgx025 maxmag 2 1 -> 2
+mxgx026 maxmag 2 2 -> 2
+
+-- extended zeros
+mxgx030 maxmag 0 0 -> 0
+mxgx031 maxmag 0 -0 -> 0
+mxgx032 maxmag 0 -0.0 -> 0
+mxgx033 maxmag 0 0.0 -> 0
+mxgx034 maxmag -0 0 -> 0 -- note: -0 = 0, but 0 chosen
+mxgx035 maxmag -0 -0 -> -0
+mxgx036 maxmag -0 -0.0 -> -0.0
+mxgx037 maxmag -0 0.0 -> 0.0
+mxgx038 maxmag 0.0 0 -> 0
+mxgx039 maxmag 0.0 -0 -> 0.0
+mxgx040 maxmag 0.0 -0.0 -> 0.0
+mxgx041 maxmag 0.0 0.0 -> 0.0
+mxgx042 maxmag -0.0 0 -> 0
+mxgx043 maxmag -0.0 -0 -> -0.0
+mxgx044 maxmag -0.0 -0.0 -> -0.0
+mxgx045 maxmag -0.0 0.0 -> 0.0
+
+mxgx050 maxmag -0E1 0E1 -> 0E+1
+mxgx051 maxmag -0E2 0E2 -> 0E+2
+mxgx052 maxmag -0E2 0E1 -> 0E+1
+mxgx053 maxmag -0E1 0E2 -> 0E+2
+mxgx054 maxmag 0E1 -0E1 -> 0E+1
+mxgx055 maxmag 0E2 -0E2 -> 0E+2
+mxgx056 maxmag 0E2 -0E1 -> 0E+2
+mxgx057 maxmag 0E1 -0E2 -> 0E+1
+
+mxgx058 maxmag 0E1 0E1 -> 0E+1
+mxgx059 maxmag 0E2 0E2 -> 0E+2
+mxgx060 maxmag 0E2 0E1 -> 0E+2
+mxgx061 maxmag 0E1 0E2 -> 0E+2
+mxgx062 maxmag -0E1 -0E1 -> -0E+1
+mxgx063 maxmag -0E2 -0E2 -> -0E+2
+mxgx064 maxmag -0E2 -0E1 -> -0E+1
+mxgx065 maxmag -0E1 -0E2 -> -0E+1
+
+-- Specials
+precision: 9
+mxgx090 maxmag Inf -Inf -> Infinity
+mxgx091 maxmag Inf -1000 -> Infinity
+mxgx092 maxmag Inf -1 -> Infinity
+mxgx093 maxmag Inf -0 -> Infinity
+mxgx094 maxmag Inf 0 -> Infinity
+mxgx095 maxmag Inf 1 -> Infinity
+mxgx096 maxmag Inf 1000 -> Infinity
+mxgx097 maxmag Inf Inf -> Infinity
+mxgx098 maxmag -1000 Inf -> Infinity
+mxgx099 maxmag -Inf Inf -> Infinity
+mxgx100 maxmag -1 Inf -> Infinity
+mxgx101 maxmag -0 Inf -> Infinity
+mxgx102 maxmag 0 Inf -> Infinity
+mxgx103 maxmag 1 Inf -> Infinity
+mxgx104 maxmag 1000 Inf -> Infinity
+mxgx105 maxmag Inf Inf -> Infinity
+
+mxgx120 maxmag -Inf -Inf -> -Infinity
+mxgx121 maxmag -Inf -1000 -> -Infinity
+mxgx122 maxmag -Inf -1 -> -Infinity
+mxgx123 maxmag -Inf -0 -> -Infinity
+mxgx124 maxmag -Inf 0 -> -Infinity
+mxgx125 maxmag -Inf 1 -> -Infinity
+mxgx126 maxmag -Inf 1000 -> -Infinity
+mxgx127 maxmag -Inf Inf -> Infinity
+mxgx128 maxmag -Inf -Inf -> -Infinity
+mxgx129 maxmag -1000 -Inf -> -Infinity
+mxgx130 maxmag -1 -Inf -> -Infinity
+mxgx131 maxmag -0 -Inf -> -Infinity
+mxgx132 maxmag 0 -Inf -> -Infinity
+mxgx133 maxmag 1 -Inf -> -Infinity
+mxgx134 maxmag 1000 -Inf -> -Infinity
+mxgx135 maxmag Inf -Inf -> Infinity
+
+-- 2004.08.02 754r chooses number over NaN in mixed cases
+mxgx141 maxmag NaN -Inf -> -Infinity
+mxgx142 maxmag NaN -1000 -> -1000
+mxgx143 maxmag NaN -1 -> -1
+mxgx144 maxmag NaN -0 -> -0
+mxgx145 maxmag NaN 0 -> 0
+mxgx146 maxmag NaN 1 -> 1
+mxgx147 maxmag NaN 1000 -> 1000
+mxgx148 maxmag NaN Inf -> Infinity
+mxgx149 maxmag NaN NaN -> NaN
+mxgx150 maxmag -Inf NaN -> -Infinity
+mxgx151 maxmag -1000 NaN -> -1000
+mxgx152 maxmag -1 NaN -> -1
+mxgx153 maxmag -0 NaN -> -0
+mxgx154 maxmag 0 NaN -> 0
+mxgx155 maxmag 1 NaN -> 1
+mxgx156 maxmag 1000 NaN -> 1000
+mxgx157 maxmag Inf NaN -> Infinity
+
+mxgx161 maxmag sNaN -Inf -> NaN Invalid_operation
+mxgx162 maxmag sNaN -1000 -> NaN Invalid_operation
+mxgx163 maxmag sNaN -1 -> NaN Invalid_operation
+mxgx164 maxmag sNaN -0 -> NaN Invalid_operation
+mxgx165 maxmag sNaN 0 -> NaN Invalid_operation
+mxgx166 maxmag sNaN 1 -> NaN Invalid_operation
+mxgx167 maxmag sNaN 1000 -> NaN Invalid_operation
+mxgx168 maxmag sNaN NaN -> NaN Invalid_operation
+mxgx169 maxmag sNaN sNaN -> NaN Invalid_operation
+mxgx170 maxmag NaN sNaN -> NaN Invalid_operation
+mxgx171 maxmag -Inf sNaN -> NaN Invalid_operation
+mxgx172 maxmag -1000 sNaN -> NaN Invalid_operation
+mxgx173 maxmag -1 sNaN -> NaN Invalid_operation
+mxgx174 maxmag -0 sNaN -> NaN Invalid_operation
+mxgx175 maxmag 0 sNaN -> NaN Invalid_operation
+mxgx176 maxmag 1 sNaN -> NaN Invalid_operation
+mxgx177 maxmag 1000 sNaN -> NaN Invalid_operation
+mxgx178 maxmag Inf sNaN -> NaN Invalid_operation
+mxgx179 maxmag NaN sNaN -> NaN Invalid_operation
+
+-- propagating NaNs
+mxgx181 maxmag NaN9 -Inf -> -Infinity
+mxgx182 maxmag NaN8 9 -> 9
+mxgx183 maxmag -NaN7 Inf -> Infinity
+
+mxgx184 maxmag -NaN1 NaN11 -> -NaN1
+mxgx185 maxmag NaN2 NaN12 -> NaN2
+mxgx186 maxmag -NaN13 -NaN7 -> -NaN13
+mxgx187 maxmag NaN14 -NaN5 -> NaN14
+
+mxgx188 maxmag -Inf NaN4 -> -Infinity
+mxgx189 maxmag -9 -NaN3 -> -9
+mxgx190 maxmag Inf NaN2 -> Infinity
+
+mxgx191 maxmag sNaN99 -Inf -> NaN99 Invalid_operation
+mxgx192 maxmag sNaN98 -1 -> NaN98 Invalid_operation
+mxgx193 maxmag -sNaN97 NaN -> -NaN97 Invalid_operation
+mxgx194 maxmag sNaN96 sNaN94 -> NaN96 Invalid_operation
+mxgx195 maxmag NaN95 sNaN93 -> NaN93 Invalid_operation
+mxgx196 maxmag -Inf sNaN92 -> NaN92 Invalid_operation
+mxgx197 maxmag 0 sNaN91 -> NaN91 Invalid_operation
+mxgx198 maxmag Inf -sNaN90 -> -NaN90 Invalid_operation
+mxgx199 maxmag NaN sNaN89 -> NaN89 Invalid_operation
+
+-- rounding checks
+maxexponent: 999
+minexponent: -999
+precision: 9
+mxgx201 maxmag 12345678000 1 -> 1.23456780E+10 Rounded
+mxgx202 maxmag 1 12345678000 -> 1.23456780E+10 Rounded
+mxgx203 maxmag 1234567800 1 -> 1.23456780E+9 Rounded
+mxgx204 maxmag 1 1234567800 -> 1.23456780E+9 Rounded
+mxgx205 maxmag 1234567890 1 -> 1.23456789E+9 Rounded
+mxgx206 maxmag 1 1234567890 -> 1.23456789E+9 Rounded
+mxgx207 maxmag 1234567891 1 -> 1.23456789E+9 Inexact Rounded
+mxgx208 maxmag 1 1234567891 -> 1.23456789E+9 Inexact Rounded
+mxgx209 maxmag 12345678901 1 -> 1.23456789E+10 Inexact Rounded
+mxgx210 maxmag 1 12345678901 -> 1.23456789E+10 Inexact Rounded
+mxgx211 maxmag 1234567896 1 -> 1.23456790E+9 Inexact Rounded
+mxgx212 maxmag 1 1234567896 -> 1.23456790E+9 Inexact Rounded
+mxgx213 maxmag -1234567891 1 -> -1.23456789E+9 Inexact Rounded
+mxgx214 maxmag 1 -1234567891 -> -1.23456789E+9 Inexact Rounded
+mxgx215 maxmag -12345678901 1 -> -1.23456789E+10 Inexact Rounded
+mxgx216 maxmag 1 -12345678901 -> -1.23456789E+10 Inexact Rounded
+mxgx217 maxmag -1234567896 1 -> -1.23456790E+9 Inexact Rounded
+mxgx218 maxmag 1 -1234567896 -> -1.23456790E+9 Inexact Rounded
+
+precision: 15
+mxgx221 maxmag 12345678000 1 -> 12345678000
+mxgx222 maxmag 1 12345678000 -> 12345678000
+mxgx223 maxmag 1234567800 1 -> 1234567800
+mxgx224 maxmag 1 1234567800 -> 1234567800
+mxgx225 maxmag 1234567890 1 -> 1234567890
+mxgx226 maxmag 1 1234567890 -> 1234567890
+mxgx227 maxmag 1234567891 1 -> 1234567891
+mxgx228 maxmag 1 1234567891 -> 1234567891
+mxgx229 maxmag 12345678901 1 -> 12345678901
+mxgx230 maxmag 1 12345678901 -> 12345678901
+mxgx231 maxmag 1234567896 1 -> 1234567896
+mxgx232 maxmag 1 1234567896 -> 1234567896
+mxgx233 maxmag -1234567891 1 -> -1234567891
+mxgx234 maxmag 1 -1234567891 -> -1234567891
+mxgx235 maxmag -12345678901 1 -> -12345678901
+mxgx236 maxmag 1 -12345678901 -> -12345678901
+mxgx237 maxmag -1234567896 1 -> -1234567896
+mxgx238 maxmag 1 -1234567896 -> -1234567896
+
+-- from examples
+mxgx280 maxmag '3' '2' -> '3'
+mxgx281 maxmag '-10' '3' -> '-10'
+mxgx282 maxmag '1.0' '1' -> '1'
+mxgx283 maxmag '1' '1.0' -> '1'
+mxgx284 maxmag '7' 'NaN' -> '7'
+
+-- overflow and underflow tests ...
+maxExponent: 999999999
+minexponent: -999999999
+mxgx330 maxmag +1.23456789012345E-0 9E+999999999 -> 9E+999999999
+mxgx331 maxmag 9E+999999999 +1.23456789012345E-0 -> 9E+999999999
+mxgx332 maxmag +0.100 9E-999999999 -> 0.100
+mxgx333 maxmag 9E-999999999 +0.100 -> 0.100
+mxgx335 maxmag -1.23456789012345E-0 9E+999999999 -> 9E+999999999
+mxgx336 maxmag 9E+999999999 -1.23456789012345E-0 -> 9E+999999999
+mxgx337 maxmag -0.100 9E-999999999 -> -0.100
+mxgx338 maxmag 9E-999999999 -0.100 -> -0.100
+
+mxgx339 maxmag 1e-599999999 1e-400000001 -> 1E-400000001
+mxgx340 maxmag 1e-599999999 1e-400000000 -> 1E-400000000
+mxgx341 maxmag 1e-600000000 1e-400000000 -> 1E-400000000
+mxgx342 maxmag 9e-999999998 0.01 -> 0.01
+mxgx343 maxmag 9e-999999998 0.1 -> 0.1
+mxgx344 maxmag 0.01 9e-999999998 -> 0.01
+mxgx345 maxmag 1e599999999 1e400000001 -> 1E+599999999
+mxgx346 maxmag 1e599999999 1e400000000 -> 1E+599999999
+mxgx347 maxmag 1e600000000 1e400000000 -> 1E+600000000
+mxgx348 maxmag 9e999999998 100 -> 9E+999999998
+mxgx349 maxmag 9e999999998 10 -> 9E+999999998
+mxgx350 maxmag 100 9e999999998 -> 9E+999999998
+-- signs
+mxgx351 maxmag 1e+777777777 1e+411111111 -> 1E+777777777
+mxgx352 maxmag 1e+777777777 -1e+411111111 -> 1E+777777777
+mxgx353 maxmag -1e+777777777 1e+411111111 -> -1E+777777777
+mxgx354 maxmag -1e+777777777 -1e+411111111 -> -1E+777777777
+mxgx355 maxmag 1e-777777777 1e-411111111 -> 1E-411111111
+mxgx356 maxmag 1e-777777777 -1e-411111111 -> -1E-411111111
+mxgx357 maxmag -1e-777777777 1e-411111111 -> 1E-411111111
+mxgx358 maxmag -1e-777777777 -1e-411111111 -> -1E-411111111
+
+-- expanded list from min/max 754r purple prose
+-- [explicit tests for exponent ordering]
+mxgx401 maxmag Inf 1.1 -> Infinity
+mxgx402 maxmag 1.1 1 -> 1.1
+mxgx403 maxmag 1 1.0 -> 1
+mxgx404 maxmag 1.0 0.1 -> 1.0
+mxgx405 maxmag 0.1 0.10 -> 0.1
+mxgx406 maxmag 0.10 0.100 -> 0.10
+mxgx407 maxmag 0.10 0 -> 0.10
+mxgx408 maxmag 0 0.0 -> 0
+mxgx409 maxmag 0.0 -0 -> 0.0
+mxgx410 maxmag 0.0 -0.0 -> 0.0
+mxgx411 maxmag 0.00 -0.0 -> 0.00
+mxgx412 maxmag 0.0 -0.00 -> 0.0
+mxgx413 maxmag 0 -0.0 -> 0
+mxgx414 maxmag 0 -0 -> 0
+mxgx415 maxmag -0.0 -0 -> -0.0
+mxgx416 maxmag -0 -0.100 -> -0.100
+mxgx417 maxmag -0.100 -0.10 -> -0.100
+mxgx418 maxmag -0.10 -0.1 -> -0.10
+mxgx419 maxmag -0.1 -1.0 -> -1.0
+mxgx420 maxmag -1.0 -1 -> -1.0
+mxgx421 maxmag -1 -1.1 -> -1.1
+mxgx423 maxmag -1.1 -Inf -> -Infinity
+-- same with operands reversed
+mxgx431 maxmag 1.1 Inf -> Infinity
+mxgx432 maxmag 1 1.1 -> 1.1
+mxgx433 maxmag 1.0 1 -> 1
+mxgx434 maxmag 0.1 1.0 -> 1.0
+mxgx435 maxmag 0.10 0.1 -> 0.1
+mxgx436 maxmag 0.100 0.10 -> 0.10
+mxgx437 maxmag 0 0.10 -> 0.10
+mxgx438 maxmag 0.0 0 -> 0
+mxgx439 maxmag -0 0.0 -> 0.0
+mxgx440 maxmag -0.0 0.0 -> 0.0
+mxgx441 maxmag -0.0 0.00 -> 0.00
+mxgx442 maxmag -0.00 0.0 -> 0.0
+mxgx443 maxmag -0.0 0 -> 0
+mxgx444 maxmag -0 0 -> 0
+mxgx445 maxmag -0 -0.0 -> -0.0
+mxgx446 maxmag -0.100 -0 -> -0.100
+mxgx447 maxmag -0.10 -0.100 -> -0.100
+mxgx448 maxmag -0.1 -0.10 -> -0.10
+mxgx449 maxmag -1.0 -0.1 -> -1.0
+mxgx450 maxmag -1 -1.0 -> -1.0
+mxgx451 maxmag -1.1 -1 -> -1.1
+mxgx453 maxmag -Inf -1.1 -> -Infinity
+-- largies
+mxgx460 maxmag 1000 1E+3 -> 1E+3
+mxgx461 maxmag 1E+3 1000 -> 1E+3
+mxgx462 maxmag 1000 -1E+3 -> 1000
+mxgx463 maxmag 1E+3 -1000 -> 1E+3
+mxgx464 maxmag -1000 1E+3 -> 1E+3
+mxgx465 maxmag -1E+3 1000 -> 1000
+mxgx466 maxmag -1000 -1E+3 -> -1000
+mxgx467 maxmag -1E+3 -1000 -> -1000
+
+-- rounding (results treated as though plus)
+maxexponent: 999999999
+minexponent: -999999999
+precision: 3
+
+mxgx470 maxmag 1 .5 -> 1
+mxgx471 maxmag 10 5 -> 10
+mxgx472 maxmag 100 50 -> 100
+mxgx473 maxmag 1000 500 -> 1.00E+3 Rounded
+mxgx474 maxmag 10000 5000 -> 1.00E+4 Rounded
+mxgx475 maxmag 6 .5 -> 6
+mxgx476 maxmag 66 5 -> 66
+mxgx477 maxmag 666 50 -> 666
+mxgx478 maxmag 6666 500 -> 6.67E+3 Rounded Inexact
+mxgx479 maxmag 66666 5000 -> 6.67E+4 Rounded Inexact
+mxgx480 maxmag 33333 5000 -> 3.33E+4 Rounded Inexact
+mxgx481 maxmag .5 1 -> 1
+mxgx482 maxmag .5 10 -> 10
+mxgx483 maxmag .5 100 -> 100
+mxgx484 maxmag .5 1000 -> 1.00E+3 Rounded
+mxgx485 maxmag .5 10000 -> 1.00E+4 Rounded
+mxgx486 maxmag .5 6 -> 6
+mxgx487 maxmag .5 66 -> 66
+mxgx488 maxmag .5 666 -> 666
+mxgx489 maxmag .5 6666 -> 6.67E+3 Rounded Inexact
+mxgx490 maxmag .5 66666 -> 6.67E+4 Rounded Inexact
+mxgx491 maxmag .5 33333 -> 3.33E+4 Rounded Inexact
+
+-- overflow tests
+maxexponent: 999999999
+minexponent: -999999999
+precision: 3
+mxgx500 maxmag 9.999E+999999999 0 -> Infinity Inexact Overflow Rounded
+mxgx501 maxmag -9.999E+999999999 0 -> -Infinity Inexact Overflow Rounded
+
+-- subnormals and underflow
+precision: 3
+maxexponent: 999
+minexponent: -999
+mxgx510 maxmag 1.00E-999 0 -> 1.00E-999
+mxgx511 maxmag 0.1E-999 0 -> 1E-1000 Subnormal
+mxgx512 maxmag 0.10E-999 0 -> 1.0E-1000 Subnormal
+mxgx513 maxmag 0.100E-999 0 -> 1.0E-1000 Subnormal Rounded
+mxgx514 maxmag 0.01E-999 0 -> 1E-1001 Subnormal
+-- next is rounded to Nmin
+mxgx515 maxmag 0.999E-999 0 -> 1.00E-999 Inexact Rounded Subnormal Underflow
+mxgx516 maxmag 0.099E-999 0 -> 1.0E-1000 Inexact Rounded Subnormal Underflow
+mxgx517 maxmag 0.009E-999 0 -> 1E-1001 Inexact Rounded Subnormal Underflow
+mxgx518 maxmag 0.001E-999 0 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
+mxgx519 maxmag 0.0009E-999 0 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
+mxgx520 maxmag 0.0001E-999 0 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
+
+mxgx530 maxmag -1.00E-999 0 -> -1.00E-999
+mxgx531 maxmag -0.1E-999 0 -> -1E-1000 Subnormal
+mxgx532 maxmag -0.10E-999 0 -> -1.0E-1000 Subnormal
+mxgx533 maxmag -0.100E-999 0 -> -1.0E-1000 Subnormal Rounded
+mxgx534 maxmag -0.01E-999 0 -> -1E-1001 Subnormal
+-- next is rounded to -Nmin
+mxgx535 maxmag -0.999E-999 0 -> -1.00E-999 Inexact Rounded Subnormal Underflow
+mxgx536 maxmag -0.099E-999 0 -> -1.0E-1000 Inexact Rounded Subnormal Underflow
+mxgx537 maxmag -0.009E-999 0 -> -1E-1001 Inexact Rounded Subnormal Underflow
+mxgx538 maxmag -0.001E-999 0 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
+mxgx539 maxmag -0.0009E-999 0 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
+mxgx540 maxmag -0.0001E-999 0 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
+
+-- Null tests
+mxgx900 maxmag 10 # -> NaN Invalid_operation
+mxgx901 maxmag # 10 -> NaN Invalid_operation
+
+
+
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