| ------------------------------------------------------------------------ |
| -- dqSubtract.decTest -- decQuad subtraction -- |
| -- 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: 2.59 |
| |
| -- This set of tests are for decQuads only; all arguments are |
| -- representable in a decQuad |
| extended: 1 |
| clamp: 1 |
| precision: 34 |
| maxExponent: 6144 |
| minExponent: -6143 |
| rounding: half_even |
| |
| -- [first group are 'quick confidence check'] |
| dqsub001 subtract 0 0 -> '0' |
| dqsub002 subtract 1 1 -> '0' |
| dqsub003 subtract 1 2 -> '-1' |
| dqsub004 subtract 2 1 -> '1' |
| dqsub005 subtract 2 2 -> '0' |
| dqsub006 subtract 3 2 -> '1' |
| dqsub007 subtract 2 3 -> '-1' |
| |
| dqsub011 subtract -0 0 -> '-0' |
| dqsub012 subtract -1 1 -> '-2' |
| dqsub013 subtract -1 2 -> '-3' |
| dqsub014 subtract -2 1 -> '-3' |
| dqsub015 subtract -2 2 -> '-4' |
| dqsub016 subtract -3 2 -> '-5' |
| dqsub017 subtract -2 3 -> '-5' |
| |
| dqsub021 subtract 0 -0 -> '0' |
| dqsub022 subtract 1 -1 -> '2' |
| dqsub023 subtract 1 -2 -> '3' |
| dqsub024 subtract 2 -1 -> '3' |
| dqsub025 subtract 2 -2 -> '4' |
| dqsub026 subtract 3 -2 -> '5' |
| dqsub027 subtract 2 -3 -> '5' |
| |
| dqsub030 subtract 11 1 -> 10 |
| dqsub031 subtract 10 1 -> 9 |
| dqsub032 subtract 9 1 -> 8 |
| dqsub033 subtract 1 1 -> 0 |
| dqsub034 subtract 0 1 -> -1 |
| dqsub035 subtract -1 1 -> -2 |
| dqsub036 subtract -9 1 -> -10 |
| dqsub037 subtract -10 1 -> -11 |
| dqsub038 subtract -11 1 -> -12 |
| |
| dqsub040 subtract '5.75' '3.3' -> '2.45' |
| dqsub041 subtract '5' '-3' -> '8' |
| dqsub042 subtract '-5' '-3' -> '-2' |
| dqsub043 subtract '-7' '2.5' -> '-9.5' |
| dqsub044 subtract '0.7' '0.3' -> '0.4' |
| dqsub045 subtract '1.3' '0.3' -> '1.0' |
| dqsub046 subtract '1.25' '1.25' -> '0.00' |
| |
| dqsub050 subtract '1.23456789' '1.00000000' -> '0.23456789' |
| dqsub051 subtract '1.23456789' '1.00000089' -> '0.23456700' |
| |
| dqsub060 subtract '70' '10000e+34' -> '-1.000000000000000000000000000000000E+38' Inexact Rounded |
| dqsub061 subtract '700' '10000e+34' -> '-1.000000000000000000000000000000000E+38' Inexact Rounded |
| dqsub062 subtract '7000' '10000e+34' -> '-9.999999999999999999999999999999999E+37' Inexact Rounded |
| dqsub063 subtract '70000' '10000e+34' -> '-9.999999999999999999999999999999993E+37' Rounded |
| dqsub064 subtract '700000' '10000e+34' -> '-9.999999999999999999999999999999930E+37' Rounded |
| -- symmetry: |
| dqsub065 subtract '10000e+34' '70' -> '1.000000000000000000000000000000000E+38' Inexact Rounded |
| dqsub066 subtract '10000e+34' '700' -> '1.000000000000000000000000000000000E+38' Inexact Rounded |
| dqsub067 subtract '10000e+34' '7000' -> '9.999999999999999999999999999999999E+37' Inexact Rounded |
| dqsub068 subtract '10000e+34' '70000' -> '9.999999999999999999999999999999993E+37' Rounded |
| dqsub069 subtract '10000e+34' '700000' -> '9.999999999999999999999999999999930E+37' Rounded |
| |
| -- some of the next group are really constructor tests |
| dqsub090 subtract '00.0' '0.0' -> '0.0' |
| dqsub091 subtract '00.0' '0.00' -> '0.00' |
| dqsub092 subtract '0.00' '00.0' -> '0.00' |
| dqsub093 subtract '00.0' '0.00' -> '0.00' |
| dqsub094 subtract '0.00' '00.0' -> '0.00' |
| dqsub095 subtract '3' '.3' -> '2.7' |
| dqsub096 subtract '3.' '.3' -> '2.7' |
| dqsub097 subtract '3.0' '.3' -> '2.7' |
| dqsub098 subtract '3.00' '.3' -> '2.70' |
| dqsub099 subtract '3' '3' -> '0' |
| dqsub100 subtract '3' '+3' -> '0' |
| dqsub101 subtract '3' '-3' -> '6' |
| dqsub102 subtract '3' '0.3' -> '2.7' |
| dqsub103 subtract '3.' '0.3' -> '2.7' |
| dqsub104 subtract '3.0' '0.3' -> '2.7' |
| dqsub105 subtract '3.00' '0.3' -> '2.70' |
| dqsub106 subtract '3' '3.0' -> '0.0' |
| dqsub107 subtract '3' '+3.0' -> '0.0' |
| dqsub108 subtract '3' '-3.0' -> '6.0' |
| |
| -- the above all from add; massaged and extended. Now some new ones... |
| -- [particularly important for comparisons] |
| -- NB: -xE-8 below were non-exponents pre-ANSI X3-274, and -1E-7 or 0E-7 |
| -- with input rounding. |
| dqsub120 subtract '10.23456784' '10.23456789' -> '-5E-8' |
| dqsub121 subtract '10.23456785' '10.23456789' -> '-4E-8' |
| dqsub122 subtract '10.23456786' '10.23456789' -> '-3E-8' |
| dqsub123 subtract '10.23456787' '10.23456789' -> '-2E-8' |
| dqsub124 subtract '10.23456788' '10.23456789' -> '-1E-8' |
| dqsub125 subtract '10.23456789' '10.23456789' -> '0E-8' |
| dqsub126 subtract '10.23456790' '10.23456789' -> '1E-8' |
| dqsub127 subtract '10.23456791' '10.23456789' -> '2E-8' |
| dqsub128 subtract '10.23456792' '10.23456789' -> '3E-8' |
| dqsub129 subtract '10.23456793' '10.23456789' -> '4E-8' |
| dqsub130 subtract '10.23456794' '10.23456789' -> '5E-8' |
| dqsub131 subtract '10.23456781' '10.23456786' -> '-5E-8' |
| dqsub132 subtract '10.23456782' '10.23456786' -> '-4E-8' |
| dqsub133 subtract '10.23456783' '10.23456786' -> '-3E-8' |
| dqsub134 subtract '10.23456784' '10.23456786' -> '-2E-8' |
| dqsub135 subtract '10.23456785' '10.23456786' -> '-1E-8' |
| dqsub136 subtract '10.23456786' '10.23456786' -> '0E-8' |
| dqsub137 subtract '10.23456787' '10.23456786' -> '1E-8' |
| dqsub138 subtract '10.23456788' '10.23456786' -> '2E-8' |
| dqsub139 subtract '10.23456789' '10.23456786' -> '3E-8' |
| dqsub140 subtract '10.23456790' '10.23456786' -> '4E-8' |
| dqsub141 subtract '10.23456791' '10.23456786' -> '5E-8' |
| dqsub142 subtract '1' '0.999999999' -> '1E-9' |
| dqsub143 subtract '0.999999999' '1' -> '-1E-9' |
| dqsub144 subtract '-10.23456780' '-10.23456786' -> '6E-8' |
| dqsub145 subtract '-10.23456790' '-10.23456786' -> '-4E-8' |
| dqsub146 subtract '-10.23456791' '-10.23456786' -> '-5E-8' |
| |
| -- additional scaled arithmetic tests [0.97 problem] |
| dqsub160 subtract '0' '.1' -> '-0.1' |
| dqsub161 subtract '00' '.97983' -> '-0.97983' |
| dqsub162 subtract '0' '.9' -> '-0.9' |
| dqsub163 subtract '0' '0.102' -> '-0.102' |
| dqsub164 subtract '0' '.4' -> '-0.4' |
| dqsub165 subtract '0' '.307' -> '-0.307' |
| dqsub166 subtract '0' '.43822' -> '-0.43822' |
| dqsub167 subtract '0' '.911' -> '-0.911' |
| dqsub168 subtract '.0' '.02' -> '-0.02' |
| dqsub169 subtract '00' '.392' -> '-0.392' |
| dqsub170 subtract '0' '.26' -> '-0.26' |
| dqsub171 subtract '0' '0.51' -> '-0.51' |
| dqsub172 subtract '0' '.2234' -> '-0.2234' |
| dqsub173 subtract '0' '.2' -> '-0.2' |
| dqsub174 subtract '.0' '.0008' -> '-0.0008' |
| -- 0. on left |
| dqsub180 subtract '0.0' '-.1' -> '0.1' |
| dqsub181 subtract '0.00' '-.97983' -> '0.97983' |
| dqsub182 subtract '0.0' '-.9' -> '0.9' |
| dqsub183 subtract '0.0' '-0.102' -> '0.102' |
| dqsub184 subtract '0.0' '-.4' -> '0.4' |
| dqsub185 subtract '0.0' '-.307' -> '0.307' |
| dqsub186 subtract '0.0' '-.43822' -> '0.43822' |
| dqsub187 subtract '0.0' '-.911' -> '0.911' |
| dqsub188 subtract '0.0' '-.02' -> '0.02' |
| dqsub189 subtract '0.00' '-.392' -> '0.392' |
| dqsub190 subtract '0.0' '-.26' -> '0.26' |
| dqsub191 subtract '0.0' '-0.51' -> '0.51' |
| dqsub192 subtract '0.0' '-.2234' -> '0.2234' |
| dqsub193 subtract '0.0' '-.2' -> '0.2' |
| dqsub194 subtract '0.0' '-.0008' -> '0.0008' |
| -- negatives of same |
| dqsub200 subtract '0' '-.1' -> '0.1' |
| dqsub201 subtract '00' '-.97983' -> '0.97983' |
| dqsub202 subtract '0' '-.9' -> '0.9' |
| dqsub203 subtract '0' '-0.102' -> '0.102' |
| dqsub204 subtract '0' '-.4' -> '0.4' |
| dqsub205 subtract '0' '-.307' -> '0.307' |
| dqsub206 subtract '0' '-.43822' -> '0.43822' |
| dqsub207 subtract '0' '-.911' -> '0.911' |
| dqsub208 subtract '.0' '-.02' -> '0.02' |
| dqsub209 subtract '00' '-.392' -> '0.392' |
| dqsub210 subtract '0' '-.26' -> '0.26' |
| dqsub211 subtract '0' '-0.51' -> '0.51' |
| dqsub212 subtract '0' '-.2234' -> '0.2234' |
| dqsub213 subtract '0' '-.2' -> '0.2' |
| dqsub214 subtract '.0' '-.0008' -> '0.0008' |
| |
| -- more fixed, LHS swaps [really the same as testcases under add] |
| dqsub220 subtract '-56267E-12' 0 -> '-5.6267E-8' |
| dqsub221 subtract '-56267E-11' 0 -> '-5.6267E-7' |
| dqsub222 subtract '-56267E-10' 0 -> '-0.0000056267' |
| dqsub223 subtract '-56267E-9' 0 -> '-0.000056267' |
| dqsub224 subtract '-56267E-8' 0 -> '-0.00056267' |
| dqsub225 subtract '-56267E-7' 0 -> '-0.0056267' |
| dqsub226 subtract '-56267E-6' 0 -> '-0.056267' |
| dqsub227 subtract '-56267E-5' 0 -> '-0.56267' |
| dqsub228 subtract '-56267E-2' 0 -> '-562.67' |
| dqsub229 subtract '-56267E-1' 0 -> '-5626.7' |
| dqsub230 subtract '-56267E-0' 0 -> '-56267' |
| -- symmetry ... |
| dqsub240 subtract 0 '-56267E-12' -> '5.6267E-8' |
| dqsub241 subtract 0 '-56267E-11' -> '5.6267E-7' |
| dqsub242 subtract 0 '-56267E-10' -> '0.0000056267' |
| dqsub243 subtract 0 '-56267E-9' -> '0.000056267' |
| dqsub244 subtract 0 '-56267E-8' -> '0.00056267' |
| dqsub245 subtract 0 '-56267E-7' -> '0.0056267' |
| dqsub246 subtract 0 '-56267E-6' -> '0.056267' |
| dqsub247 subtract 0 '-56267E-5' -> '0.56267' |
| dqsub248 subtract 0 '-56267E-2' -> '562.67' |
| dqsub249 subtract 0 '-56267E-1' -> '5626.7' |
| dqsub250 subtract 0 '-56267E-0' -> '56267' |
| |
| -- now some more from the 'new' add |
| dqsub301 subtract '1.23456789' '1.00000000' -> '0.23456789' |
| dqsub302 subtract '1.23456789' '1.00000011' -> '0.23456778' |
| |
| -- some carrying effects |
| dqsub321 subtract '0.9998' '0.0000' -> '0.9998' |
| dqsub322 subtract '0.9998' '0.0001' -> '0.9997' |
| dqsub323 subtract '0.9998' '0.0002' -> '0.9996' |
| dqsub324 subtract '0.9998' '0.0003' -> '0.9995' |
| dqsub325 subtract '0.9998' '-0.0000' -> '0.9998' |
| dqsub326 subtract '0.9998' '-0.0001' -> '0.9999' |
| dqsub327 subtract '0.9998' '-0.0002' -> '1.0000' |
| dqsub328 subtract '0.9998' '-0.0003' -> '1.0001' |
| |
| -- internal boundaries |
| dqsub346 subtract '10000e+9' '7' -> '9999999999993' |
| dqsub347 subtract '10000e+9' '70' -> '9999999999930' |
| dqsub348 subtract '10000e+9' '700' -> '9999999999300' |
| dqsub349 subtract '10000e+9' '7000' -> '9999999993000' |
| dqsub350 subtract '10000e+9' '70000' -> '9999999930000' |
| dqsub351 subtract '10000e+9' '700000' -> '9999999300000' |
| dqsub352 subtract '7' '10000e+9' -> '-9999999999993' |
| dqsub353 subtract '70' '10000e+9' -> '-9999999999930' |
| dqsub354 subtract '700' '10000e+9' -> '-9999999999300' |
| dqsub355 subtract '7000' '10000e+9' -> '-9999999993000' |
| dqsub356 subtract '70000' '10000e+9' -> '-9999999930000' |
| dqsub357 subtract '700000' '10000e+9' -> '-9999999300000' |
| |
| -- zero preservation |
| dqsub361 subtract 1 '0.0001' -> '0.9999' |
| dqsub362 subtract 1 '0.00001' -> '0.99999' |
| dqsub363 subtract 1 '0.000001' -> '0.999999' |
| dqsub364 subtract 1 '0.0000000000000000000000000000000001' -> '0.9999999999999999999999999999999999' |
| dqsub365 subtract 1 '0.00000000000000000000000000000000001' -> '1.000000000000000000000000000000000' Inexact Rounded |
| dqsub366 subtract 1 '0.000000000000000000000000000000000001' -> '1.000000000000000000000000000000000' Inexact Rounded |
| |
| -- some funny zeros [in case of bad signum] |
| dqsub370 subtract 1 0 -> 1 |
| dqsub371 subtract 1 0. -> 1 |
| dqsub372 subtract 1 .0 -> 1.0 |
| dqsub373 subtract 1 0.0 -> 1.0 |
| dqsub374 subtract 0 1 -> -1 |
| dqsub375 subtract 0. 1 -> -1 |
| dqsub376 subtract .0 1 -> -1.0 |
| dqsub377 subtract 0.0 1 -> -1.0 |
| |
| -- leading 0 digit before round |
| dqsub910 subtract -103519362 -51897955.3 -> -51621406.7 |
| dqsub911 subtract 159579.444 89827.5229 -> 69751.9211 |
| |
| dqsub920 subtract 333.0000000000000000000000000123456 33.00000000000000000000000001234566 -> 299.9999999999999999999999999999999 Inexact Rounded |
| dqsub921 subtract 333.0000000000000000000000000123456 33.00000000000000000000000001234565 -> 300.0000000000000000000000000000000 Inexact Rounded |
| dqsub922 subtract 133.0000000000000000000000000123456 33.00000000000000000000000001234565 -> 99.99999999999999999999999999999995 |
| dqsub923 subtract 133.0000000000000000000000000123456 33.00000000000000000000000001234564 -> 99.99999999999999999999999999999996 |
| dqsub924 subtract 133.0000000000000000000000000123456 33.00000000000000000000000001234540 -> 100.0000000000000000000000000000002 Rounded |
| dqsub925 subtract 133.0000000000000000000000000123456 43.00000000000000000000000001234560 -> 90.00000000000000000000000000000000 |
| dqsub926 subtract 133.0000000000000000000000000123456 43.00000000000000000000000001234561 -> 89.99999999999999999999999999999999 |
| dqsub927 subtract 133.0000000000000000000000000123456 43.00000000000000000000000001234566 -> 89.99999999999999999999999999999994 |
| dqsub928 subtract 101.0000000000000000000000000123456 91.00000000000000000000000001234566 -> 9.99999999999999999999999999999994 |
| dqsub929 subtract 101.0000000000000000000000000123456 99.00000000000000000000000001234566 -> 1.99999999999999999999999999999994 |
| |
| -- more LHS swaps [were fixed] |
| dqsub390 subtract '-56267E-10' 0 -> '-0.0000056267' |
| dqsub391 subtract '-56267E-6' 0 -> '-0.056267' |
| dqsub392 subtract '-56267E-5' 0 -> '-0.56267' |
| dqsub393 subtract '-56267E-4' 0 -> '-5.6267' |
| dqsub394 subtract '-56267E-3' 0 -> '-56.267' |
| dqsub395 subtract '-56267E-2' 0 -> '-562.67' |
| dqsub396 subtract '-56267E-1' 0 -> '-5626.7' |
| dqsub397 subtract '-56267E-0' 0 -> '-56267' |
| dqsub398 subtract '-5E-10' 0 -> '-5E-10' |
| dqsub399 subtract '-5E-7' 0 -> '-5E-7' |
| dqsub400 subtract '-5E-6' 0 -> '-0.000005' |
| dqsub401 subtract '-5E-5' 0 -> '-0.00005' |
| dqsub402 subtract '-5E-4' 0 -> '-0.0005' |
| dqsub403 subtract '-5E-1' 0 -> '-0.5' |
| dqsub404 subtract '-5E0' 0 -> '-5' |
| dqsub405 subtract '-5E1' 0 -> '-50' |
| dqsub406 subtract '-5E5' 0 -> '-500000' |
| dqsub407 subtract '-5E33' 0 -> '-5000000000000000000000000000000000' |
| dqsub408 subtract '-5E34' 0 -> '-5.000000000000000000000000000000000E+34' Rounded |
| dqsub409 subtract '-5E35' 0 -> '-5.000000000000000000000000000000000E+35' Rounded |
| dqsub410 subtract '-5E36' 0 -> '-5.000000000000000000000000000000000E+36' Rounded |
| dqsub411 subtract '-5E100' 0 -> '-5.000000000000000000000000000000000E+100' Rounded |
| |
| -- more RHS swaps [were fixed] |
| dqsub420 subtract 0 '-56267E-10' -> '0.0000056267' |
| dqsub421 subtract 0 '-56267E-6' -> '0.056267' |
| dqsub422 subtract 0 '-56267E-5' -> '0.56267' |
| dqsub423 subtract 0 '-56267E-4' -> '5.6267' |
| dqsub424 subtract 0 '-56267E-3' -> '56.267' |
| dqsub425 subtract 0 '-56267E-2' -> '562.67' |
| dqsub426 subtract 0 '-56267E-1' -> '5626.7' |
| dqsub427 subtract 0 '-56267E-0' -> '56267' |
| dqsub428 subtract 0 '-5E-10' -> '5E-10' |
| dqsub429 subtract 0 '-5E-7' -> '5E-7' |
| dqsub430 subtract 0 '-5E-6' -> '0.000005' |
| dqsub431 subtract 0 '-5E-5' -> '0.00005' |
| dqsub432 subtract 0 '-5E-4' -> '0.0005' |
| dqsub433 subtract 0 '-5E-1' -> '0.5' |
| dqsub434 subtract 0 '-5E0' -> '5' |
| dqsub435 subtract 0 '-5E1' -> '50' |
| dqsub436 subtract 0 '-5E5' -> '500000' |
| dqsub437 subtract 0 '-5E33' -> '5000000000000000000000000000000000' |
| dqsub438 subtract 0 '-5E34' -> '5.000000000000000000000000000000000E+34' Rounded |
| dqsub439 subtract 0 '-5E35' -> '5.000000000000000000000000000000000E+35' Rounded |
| dqsub440 subtract 0 '-5E36' -> '5.000000000000000000000000000000000E+36' Rounded |
| dqsub441 subtract 0 '-5E100' -> '5.000000000000000000000000000000000E+100' Rounded |
| |
| |
| -- try borderline precision, with carries, etc. |
| dqsub461 subtract '1E+16' '1' -> '9999999999999999' |
| dqsub462 subtract '1E+12' '-1.111' -> '1000000000001.111' |
| dqsub463 subtract '1.111' '-1E+12' -> '1000000000001.111' |
| dqsub464 subtract '-1' '-1E+16' -> '9999999999999999' |
| dqsub465 subtract '7E+15' '1' -> '6999999999999999' |
| dqsub466 subtract '7E+12' '-1.111' -> '7000000000001.111' |
| dqsub467 subtract '1.111' '-7E+12' -> '7000000000001.111' |
| dqsub468 subtract '-1' '-7E+15' -> '6999999999999999' |
| |
| -- 1234567890123456 1234567890123456 1 23456789012345 |
| dqsub470 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555563' -> '1.000000000000000000000000000000001' Inexact Rounded |
| dqsub471 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555562' -> '1.000000000000000000000000000000001' Inexact Rounded |
| dqsub472 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555561' -> '1.000000000000000000000000000000000' Inexact Rounded |
| dqsub473 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555560' -> '1.000000000000000000000000000000000' Inexact Rounded |
| dqsub474 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555559' -> '1.000000000000000000000000000000000' Inexact Rounded |
| dqsub475 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555558' -> '1.000000000000000000000000000000000' Inexact Rounded |
| dqsub476 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555557' -> '1.000000000000000000000000000000000' Inexact Rounded |
| dqsub477 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555556' -> '1.000000000000000000000000000000000' Rounded |
| dqsub478 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555555' -> '0.9999999999999999999999999999999999' |
| dqsub479 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555554' -> '0.9999999999999999999999999999999998' |
| dqsub480 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555553' -> '0.9999999999999999999999999999999997' |
| dqsub481 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555552' -> '0.9999999999999999999999999999999996' |
| dqsub482 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555551' -> '0.9999999999999999999999999999999995' |
| dqsub483 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555550' -> '0.9999999999999999999999999999999994' |
| |
| -- and some more, including residue effects and different roundings |
| rounding: half_up |
| dqsub500 subtract '1231234555555555555555555567456789' 0 -> '1231234555555555555555555567456789' |
| dqsub501 subtract '1231234555555555555555555567456789' 0.000000001 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub502 subtract '1231234555555555555555555567456789' 0.000001 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub503 subtract '1231234555555555555555555567456789' 0.1 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub504 subtract '1231234555555555555555555567456789' 0.4 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub505 subtract '1231234555555555555555555567456789' 0.49 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub506 subtract '1231234555555555555555555567456789' 0.499999 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub507 subtract '1231234555555555555555555567456789' 0.499999999 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub508 subtract '1231234555555555555555555567456789' 0.5 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub509 subtract '1231234555555555555555555567456789' 0.500000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub510 subtract '1231234555555555555555555567456789' 0.500001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub511 subtract '1231234555555555555555555567456789' 0.51 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub512 subtract '1231234555555555555555555567456789' 0.6 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub513 subtract '1231234555555555555555555567456789' 0.9 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub514 subtract '1231234555555555555555555567456789' 0.99999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub515 subtract '1231234555555555555555555567456789' 0.999999999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub516 subtract '1231234555555555555555555567456789' 1 -> '1231234555555555555555555567456788' |
| dqsub517 subtract '1231234555555555555555555567456789' 1.000000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub518 subtract '1231234555555555555555555567456789' 1.00001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub519 subtract '1231234555555555555555555567456789' 1.1 -> '1231234555555555555555555567456788' Inexact Rounded |
| |
| rounding: half_even |
| dqsub520 subtract '1231234555555555555555555567456789' 0 -> '1231234555555555555555555567456789' |
| dqsub521 subtract '1231234555555555555555555567456789' 0.000000001 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub522 subtract '1231234555555555555555555567456789' 0.000001 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub523 subtract '1231234555555555555555555567456789' 0.1 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub524 subtract '1231234555555555555555555567456789' 0.4 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub525 subtract '1231234555555555555555555567456789' 0.49 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub526 subtract '1231234555555555555555555567456789' 0.499999 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub527 subtract '1231234555555555555555555567456789' 0.499999999 -> '1231234555555555555555555567456789' Inexact Rounded |
| dqsub528 subtract '1231234555555555555555555567456789' 0.5 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub529 subtract '1231234555555555555555555567456789' 0.500000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub530 subtract '1231234555555555555555555567456789' 0.500001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub531 subtract '1231234555555555555555555567456789' 0.51 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub532 subtract '1231234555555555555555555567456789' 0.6 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub533 subtract '1231234555555555555555555567456789' 0.9 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub534 subtract '1231234555555555555555555567456789' 0.99999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub535 subtract '1231234555555555555555555567456789' 0.999999999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub536 subtract '1231234555555555555555555567456789' 1 -> '1231234555555555555555555567456788' |
| dqsub537 subtract '1231234555555555555555555567456789' 1.00000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub538 subtract '1231234555555555555555555567456789' 1.00001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub539 subtract '1231234555555555555555555567456789' 1.1 -> '1231234555555555555555555567456788' Inexact Rounded |
| -- critical few with even bottom digit... |
| dqsub540 subtract '1231234555555555555555555567456788' 0.499999999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub541 subtract '1231234555555555555555555567456788' 0.5 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub542 subtract '1231234555555555555555555567456788' 0.500000001 -> '1231234555555555555555555567456787' Inexact Rounded |
| |
| rounding: down |
| dqsub550 subtract '1231234555555555555555555567456789' 0 -> '1231234555555555555555555567456789' |
| dqsub551 subtract '1231234555555555555555555567456789' 0.000000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub552 subtract '1231234555555555555555555567456789' 0.000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub553 subtract '1231234555555555555555555567456789' 0.1 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub554 subtract '1231234555555555555555555567456789' 0.4 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub555 subtract '1231234555555555555555555567456789' 0.49 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub556 subtract '1231234555555555555555555567456789' 0.499999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub557 subtract '1231234555555555555555555567456789' 0.499999999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub558 subtract '1231234555555555555555555567456789' 0.5 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub559 subtract '1231234555555555555555555567456789' 0.500000001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub560 subtract '1231234555555555555555555567456789' 0.500001 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub561 subtract '1231234555555555555555555567456789' 0.51 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub562 subtract '1231234555555555555555555567456789' 0.6 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub563 subtract '1231234555555555555555555567456789' 0.9 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub564 subtract '1231234555555555555555555567456789' 0.99999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub565 subtract '1231234555555555555555555567456789' 0.999999999 -> '1231234555555555555555555567456788' Inexact Rounded |
| dqsub566 subtract '1231234555555555555555555567456789' 1 -> '1231234555555555555555555567456788' |
| dqsub567 subtract '1231234555555555555555555567456789' 1.00000001 -> '1231234555555555555555555567456787' Inexact Rounded |
| dqsub568 subtract '1231234555555555555555555567456789' 1.00001 -> '1231234555555555555555555567456787' Inexact Rounded |
| dqsub569 subtract '1231234555555555555555555567456789' 1.1 -> '1231234555555555555555555567456787' Inexact Rounded |
| |
| -- symmetry... |
| rounding: half_up |
| dqsub600 subtract 0 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' |
| dqsub601 subtract 0.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub602 subtract 0.000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub603 subtract 0.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub604 subtract 0.4 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub605 subtract 0.49 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub606 subtract 0.499999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub607 subtract 0.499999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub608 subtract 0.5 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub609 subtract 0.500000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub610 subtract 0.500001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub611 subtract 0.51 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub612 subtract 0.6 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub613 subtract 0.9 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub614 subtract 0.99999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub615 subtract 0.999999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub616 subtract 1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' |
| dqsub617 subtract 1.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub618 subtract 1.00001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub619 subtract 1.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| |
| rounding: half_even |
| dqsub620 subtract 0 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' |
| dqsub621 subtract 0.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub622 subtract 0.000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub623 subtract 0.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub624 subtract 0.4 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub625 subtract 0.49 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub626 subtract 0.499999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub627 subtract 0.499999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded |
| dqsub628 subtract 0.5 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub629 subtract 0.500000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub630 subtract 0.500001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub631 subtract 0.51 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub632 subtract 0.6 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub633 subtract 0.9 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub634 subtract 0.99999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub635 subtract 0.999999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub636 subtract 1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' |
| dqsub637 subtract 1.00000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub638 subtract 1.00001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub639 subtract 1.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| -- critical few with even bottom digit... |
| dqsub640 subtract 0.499999999 '1231234555555555555555555567456788' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub641 subtract 0.5 '1231234555555555555555555567456788' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub642 subtract 0.500000001 '1231234555555555555555555567456788' -> '-1231234555555555555555555567456787' Inexact Rounded |
| |
| rounding: down |
| dqsub650 subtract 0 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' |
| dqsub651 subtract 0.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub652 subtract 0.000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub653 subtract 0.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub654 subtract 0.4 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub655 subtract 0.49 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub656 subtract 0.499999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub657 subtract 0.499999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub658 subtract 0.5 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub659 subtract 0.500000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub660 subtract 0.500001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub661 subtract 0.51 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub662 subtract 0.6 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub663 subtract 0.9 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub664 subtract 0.99999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub665 subtract 0.999999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded |
| dqsub666 subtract 1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' |
| dqsub667 subtract 1.00000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456787' Inexact Rounded |
| dqsub668 subtract 1.00001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456787' Inexact Rounded |
| dqsub669 subtract 1.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456787' Inexact Rounded |
| |
| |
| -- lots of leading zeros in intermediate result, and showing effects of |
| -- input rounding would have affected the following |
| rounding: half_up |
| dqsub670 subtract '1234567456789' '1234567456788.1' -> 0.9 |
| dqsub671 subtract '1234567456789' '1234567456788.9' -> 0.1 |
| dqsub672 subtract '1234567456789' '1234567456789.1' -> -0.1 |
| dqsub673 subtract '1234567456789' '1234567456789.5' -> -0.5 |
| dqsub674 subtract '1234567456789' '1234567456789.9' -> -0.9 |
| |
| rounding: half_even |
| dqsub680 subtract '1234567456789' '1234567456788.1' -> 0.9 |
| dqsub681 subtract '1234567456789' '1234567456788.9' -> 0.1 |
| dqsub682 subtract '1234567456789' '1234567456789.1' -> -0.1 |
| dqsub683 subtract '1234567456789' '1234567456789.5' -> -0.5 |
| dqsub684 subtract '1234567456789' '1234567456789.9' -> -0.9 |
| |
| dqsub685 subtract '1234567456788' '1234567456787.1' -> 0.9 |
| dqsub686 subtract '1234567456788' '1234567456787.9' -> 0.1 |
| dqsub687 subtract '1234567456788' '1234567456788.1' -> -0.1 |
| dqsub688 subtract '1234567456788' '1234567456788.5' -> -0.5 |
| dqsub689 subtract '1234567456788' '1234567456788.9' -> -0.9 |
| |
| rounding: down |
| dqsub690 subtract '1234567456789' '1234567456788.1' -> 0.9 |
| dqsub691 subtract '1234567456789' '1234567456788.9' -> 0.1 |
| dqsub692 subtract '1234567456789' '1234567456789.1' -> -0.1 |
| dqsub693 subtract '1234567456789' '1234567456789.5' -> -0.5 |
| dqsub694 subtract '1234567456789' '1234567456789.9' -> -0.9 |
| |
| -- Specials |
| dqsub780 subtract -Inf Inf -> -Infinity |
| dqsub781 subtract -Inf 1000 -> -Infinity |
| dqsub782 subtract -Inf 1 -> -Infinity |
| dqsub783 subtract -Inf -0 -> -Infinity |
| dqsub784 subtract -Inf -1 -> -Infinity |
| dqsub785 subtract -Inf -1000 -> -Infinity |
| dqsub787 subtract -1000 Inf -> -Infinity |
| dqsub788 subtract -Inf Inf -> -Infinity |
| dqsub789 subtract -1 Inf -> -Infinity |
| dqsub790 subtract 0 Inf -> -Infinity |
| dqsub791 subtract 1 Inf -> -Infinity |
| dqsub792 subtract 1000 Inf -> -Infinity |
| |
| dqsub800 subtract Inf Inf -> NaN Invalid_operation |
| dqsub801 subtract Inf 1000 -> Infinity |
| dqsub802 subtract Inf 1 -> Infinity |
| dqsub803 subtract Inf 0 -> Infinity |
| dqsub804 subtract Inf -0 -> Infinity |
| dqsub805 subtract Inf -1 -> Infinity |
| dqsub806 subtract Inf -1000 -> Infinity |
| dqsub807 subtract Inf -Inf -> Infinity |
| dqsub808 subtract -1000 -Inf -> Infinity |
| dqsub809 subtract -Inf -Inf -> NaN Invalid_operation |
| dqsub810 subtract -1 -Inf -> Infinity |
| dqsub811 subtract -0 -Inf -> Infinity |
| dqsub812 subtract 0 -Inf -> Infinity |
| dqsub813 subtract 1 -Inf -> Infinity |
| dqsub814 subtract 1000 -Inf -> Infinity |
| dqsub815 subtract Inf -Inf -> Infinity |
| |
| dqsub821 subtract NaN Inf -> NaN |
| dqsub822 subtract -NaN 1000 -> -NaN |
| dqsub823 subtract NaN 1 -> NaN |
| dqsub824 subtract NaN 0 -> NaN |
| dqsub825 subtract NaN -0 -> NaN |
| dqsub826 subtract NaN -1 -> NaN |
| dqsub827 subtract NaN -1000 -> NaN |
| dqsub828 subtract NaN -Inf -> NaN |
| dqsub829 subtract -NaN NaN -> -NaN |
| dqsub830 subtract -Inf NaN -> NaN |
| dqsub831 subtract -1000 NaN -> NaN |
| dqsub832 subtract -1 NaN -> NaN |
| dqsub833 subtract -0 NaN -> NaN |
| dqsub834 subtract 0 NaN -> NaN |
| dqsub835 subtract 1 NaN -> NaN |
| dqsub836 subtract 1000 -NaN -> -NaN |
| dqsub837 subtract Inf NaN -> NaN |
| |
| dqsub841 subtract sNaN Inf -> NaN Invalid_operation |
| dqsub842 subtract -sNaN 1000 -> -NaN Invalid_operation |
| dqsub843 subtract sNaN 1 -> NaN Invalid_operation |
| dqsub844 subtract sNaN 0 -> NaN Invalid_operation |
| dqsub845 subtract sNaN -0 -> NaN Invalid_operation |
| dqsub846 subtract sNaN -1 -> NaN Invalid_operation |
| dqsub847 subtract sNaN -1000 -> NaN Invalid_operation |
| dqsub848 subtract sNaN NaN -> NaN Invalid_operation |
| dqsub849 subtract sNaN sNaN -> NaN Invalid_operation |
| dqsub850 subtract NaN sNaN -> NaN Invalid_operation |
| dqsub851 subtract -Inf -sNaN -> -NaN Invalid_operation |
| dqsub852 subtract -1000 sNaN -> NaN Invalid_operation |
| dqsub853 subtract -1 sNaN -> NaN Invalid_operation |
| dqsub854 subtract -0 sNaN -> NaN Invalid_operation |
| dqsub855 subtract 0 sNaN -> NaN Invalid_operation |
| dqsub856 subtract 1 sNaN -> NaN Invalid_operation |
| dqsub857 subtract 1000 sNaN -> NaN Invalid_operation |
| dqsub858 subtract Inf sNaN -> NaN Invalid_operation |
| dqsub859 subtract NaN sNaN -> NaN Invalid_operation |
| |
| -- propagating NaNs |
| dqsub861 subtract NaN01 -Inf -> NaN1 |
| dqsub862 subtract -NaN02 -1000 -> -NaN2 |
| dqsub863 subtract NaN03 1000 -> NaN3 |
| dqsub864 subtract NaN04 Inf -> NaN4 |
| dqsub865 subtract NaN05 NaN61 -> NaN5 |
| dqsub866 subtract -Inf -NaN71 -> -NaN71 |
| dqsub867 subtract -1000 NaN81 -> NaN81 |
| dqsub868 subtract 1000 NaN91 -> NaN91 |
| dqsub869 subtract Inf NaN101 -> NaN101 |
| dqsub871 subtract sNaN011 -Inf -> NaN11 Invalid_operation |
| dqsub872 subtract sNaN012 -1000 -> NaN12 Invalid_operation |
| dqsub873 subtract -sNaN013 1000 -> -NaN13 Invalid_operation |
| dqsub874 subtract sNaN014 NaN171 -> NaN14 Invalid_operation |
| dqsub875 subtract sNaN015 sNaN181 -> NaN15 Invalid_operation |
| dqsub876 subtract NaN016 sNaN191 -> NaN191 Invalid_operation |
| dqsub877 subtract -Inf sNaN201 -> NaN201 Invalid_operation |
| dqsub878 subtract -1000 sNaN211 -> NaN211 Invalid_operation |
| dqsub879 subtract 1000 -sNaN221 -> -NaN221 Invalid_operation |
| dqsub880 subtract Inf sNaN231 -> NaN231 Invalid_operation |
| dqsub881 subtract NaN025 sNaN241 -> NaN241 Invalid_operation |
| |
| -- edge case spills |
| dqsub901 subtract 2.E-3 1.002 -> -1.000 |
| dqsub902 subtract 2.0E-3 1.002 -> -1.0000 |
| dqsub903 subtract 2.00E-3 1.0020 -> -1.00000 |
| dqsub904 subtract 2.000E-3 1.00200 -> -1.000000 |
| dqsub905 subtract 2.0000E-3 1.002000 -> -1.0000000 |
| dqsub906 subtract 2.00000E-3 1.0020000 -> -1.00000000 |
| dqsub907 subtract 2.000000E-3 1.00200000 -> -1.000000000 |
| dqsub908 subtract 2.0000000E-3 1.002000000 -> -1.0000000000 |
| |
| -- subnormals and overflows covered under Add |
| |
| -- Examples from SQL proposal (Krishna Kulkarni) |
| dqsub1125 subtract 130E-2 120E-2 -> 0.10 |
| dqsub1126 subtract 130E-2 12E-1 -> 0.10 |
| dqsub1127 subtract 130E-2 1E0 -> 0.30 |
| dqsub1128 subtract 1E2 1E4 -> -9.9E+3 |
| |
| -- Null tests |
| dqsub9990 subtract 10 # -> NaN Invalid_operation |
| dqsub9991 subtract # 10 -> NaN Invalid_operation |
