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      1 ------------------------------------------------------------------------
      2 -- compare.decTest -- decimal comparison that allows quiet NaNs       --
      3 -- Copyright (c) IBM Corporation, 1981, 2008.  All rights reserved.   --
      4 ------------------------------------------------------------------------
      5 -- Please see the document "General Decimal Arithmetic Testcases"     --
      6 -- at http://www2.hursley.ibm.com/decimal for the description of      --
      7 -- these testcases.                                                   --
      8 --                                                                    --
      9 -- These testcases are experimental ('beta' versions), and they       --
     10 -- may contain errors.  They are offered on an as-is basis.  In       --
     11 -- particular, achieving the same results as the tests here is not    --
     12 -- a guarantee that an implementation complies with any Standard      --
     13 -- or specification.  The tests are not exhaustive.                   --
     14 --                                                                    --
     15 -- Please send comments, suggestions, and corrections to the author:  --
     16 --   Mike Cowlishaw, IBM Fellow                                       --
     17 --   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
     18 --   mfc (a] uk.ibm.com                                                   --
     19 ------------------------------------------------------------------------
     20 version: 2.59
     21 
     22 -- Note that we cannot assume add/subtract tests cover paths adequately,
     23 -- here, because the code might be quite different (comparison cannot
     24 -- overflow or underflow, so actual subtractions are not necessary).
     25 
     26 extended: 1
     27 
     28 precision:   9
     29 rounding:    half_up
     30 maxExponent: 999
     31 minexponent: -999
     32 
     33 -- sanity checks
     34 comx001 compare  -2  -2  -> 0
     35 comx002 compare  -2  -1  -> -1
     36 comx003 compare  -2   0  -> -1
     37 comx004 compare  -2   1  -> -1
     38 comx005 compare  -2   2  -> -1
     39 comx006 compare  -1  -2  -> 1
     40 comx007 compare  -1  -1  -> 0
     41 comx008 compare  -1   0  -> -1
     42 comx009 compare  -1   1  -> -1
     43 comx010 compare  -1   2  -> -1
     44 comx011 compare   0  -2  -> 1
     45 comx012 compare   0  -1  -> 1
     46 comx013 compare   0   0  -> 0
     47 comx014 compare   0   1  -> -1
     48 comx015 compare   0   2  -> -1
     49 comx016 compare   1  -2  -> 1
     50 comx017 compare   1  -1  -> 1
     51 comx018 compare   1   0  -> 1
     52 comx019 compare   1   1  -> 0
     53 comx020 compare   1   2  -> -1
     54 comx021 compare   2  -2  -> 1
     55 comx022 compare   2  -1  -> 1
     56 comx023 compare   2   0  -> 1
     57 comx025 compare   2   1  -> 1
     58 comx026 compare   2   2  -> 0
     59 
     60 comx031 compare  -20  -20  -> 0
     61 comx032 compare  -20  -10  -> -1
     62 comx033 compare  -20   00  -> -1
     63 comx034 compare  -20   10  -> -1
     64 comx035 compare  -20   20  -> -1
     65 comx036 compare  -10  -20  -> 1
     66 comx037 compare  -10  -10  -> 0
     67 comx038 compare  -10   00  -> -1
     68 comx039 compare  -10   10  -> -1
     69 comx040 compare  -10   20  -> -1
     70 comx041 compare   00  -20  -> 1
     71 comx042 compare   00  -10  -> 1
     72 comx043 compare   00   00  -> 0
     73 comx044 compare   00   10  -> -1
     74 comx045 compare   00   20  -> -1
     75 comx046 compare   10  -20  -> 1
     76 comx047 compare   10  -10  -> 1
     77 comx048 compare   10   00  -> 1
     78 comx049 compare   10   10  -> 0
     79 comx050 compare   10   20  -> -1
     80 comx051 compare   20  -20  -> 1
     81 comx052 compare   20  -10  -> 1
     82 comx053 compare   20   00  -> 1
     83 comx055 compare   20   10  -> 1
     84 comx056 compare   20   20  -> 0
     85 
     86 comx061 compare  -2.0  -2.0  -> 0
     87 comx062 compare  -2.0  -1.0  -> -1
     88 comx063 compare  -2.0   0.0  -> -1
     89 comx064 compare  -2.0   1.0  -> -1
     90 comx065 compare  -2.0   2.0  -> -1
     91 comx066 compare  -1.0  -2.0  -> 1
     92 comx067 compare  -1.0  -1.0  -> 0
     93 comx068 compare  -1.0   0.0  -> -1
     94 comx069 compare  -1.0   1.0  -> -1
     95 comx070 compare  -1.0   2.0  -> -1
     96 comx071 compare   0.0  -2.0  -> 1
     97 comx072 compare   0.0  -1.0  -> 1
     98 comx073 compare   0.0   0.0  -> 0
     99 comx074 compare   0.0   1.0  -> -1
    100 comx075 compare   0.0   2.0  -> -1
    101 comx076 compare   1.0  -2.0  -> 1
    102 comx077 compare   1.0  -1.0  -> 1
    103 comx078 compare   1.0   0.0  -> 1
    104 comx079 compare   1.0   1.0  -> 0
    105 comx080 compare   1.0   2.0  -> -1
    106 comx081 compare   2.0  -2.0  -> 1
    107 comx082 compare   2.0  -1.0  -> 1
    108 comx083 compare   2.0   0.0  -> 1
    109 comx085 compare   2.0   1.0  -> 1
    110 comx086 compare   2.0   2.0  -> 0
    111 
    112 -- now some cases which might overflow if subtract were used
    113 maxexponent: 999999999
    114 minexponent: -999999999
    115 comx095 compare  9.99999999E+999999999 9.99999999E+999999999  -> 0
    116 comx096 compare -9.99999999E+999999999 9.99999999E+999999999  -> -1
    117 comx097 compare  9.99999999E+999999999 -9.99999999E+999999999 -> 1
    118 comx098 compare -9.99999999E+999999999 -9.99999999E+999999999 -> 0
    119 
    120 -- some differing length/exponent cases
    121 comx100 compare   7.0    7.0    -> 0
    122 comx101 compare   7.0    7      -> 0
    123 comx102 compare   7      7.0    -> 0
    124 comx103 compare   7E+0   7.0    -> 0
    125 comx104 compare   70E-1  7.0    -> 0
    126 comx105 compare   0.7E+1 7      -> 0
    127 comx106 compare   70E-1  7      -> 0
    128 comx107 compare   7.0    7E+0   -> 0
    129 comx108 compare   7.0    70E-1  -> 0
    130 comx109 compare   7      0.7E+1 -> 0
    131 comx110 compare   7      70E-1  -> 0
    132 
    133 comx120 compare   8.0    7.0    -> 1
    134 comx121 compare   8.0    7      -> 1
    135 comx122 compare   8      7.0    -> 1
    136 comx123 compare   8E+0   7.0    -> 1
    137 comx124 compare   80E-1  7.0    -> 1
    138 comx125 compare   0.8E+1 7      -> 1
    139 comx126 compare   80E-1  7      -> 1
    140 comx127 compare   8.0    7E+0   -> 1
    141 comx128 compare   8.0    70E-1  -> 1
    142 comx129 compare   8      0.7E+1  -> 1
    143 comx130 compare   8      70E-1  -> 1
    144 
    145 comx140 compare   8.0    9.0    -> -1
    146 comx141 compare   8.0    9      -> -1
    147 comx142 compare   8      9.0    -> -1
    148 comx143 compare   8E+0   9.0    -> -1
    149 comx144 compare   80E-1  9.0    -> -1
    150 comx145 compare   0.8E+1 9      -> -1
    151 comx146 compare   80E-1  9      -> -1
    152 comx147 compare   8.0    9E+0   -> -1
    153 comx148 compare   8.0    90E-1  -> -1
    154 comx149 compare   8      0.9E+1 -> -1
    155 comx150 compare   8      90E-1  -> -1
    156 
    157 -- and again, with sign changes -+ ..
    158 comx200 compare  -7.0    7.0    -> -1
    159 comx201 compare  -7.0    7      -> -1
    160 comx202 compare  -7      7.0    -> -1
    161 comx203 compare  -7E+0   7.0    -> -1
    162 comx204 compare  -70E-1  7.0    -> -1
    163 comx205 compare  -0.7E+1 7      -> -1
    164 comx206 compare  -70E-1  7      -> -1
    165 comx207 compare  -7.0    7E+0   -> -1
    166 comx208 compare  -7.0    70E-1  -> -1
    167 comx209 compare  -7      0.7E+1 -> -1
    168 comx210 compare  -7      70E-1  -> -1
    169 
    170 comx220 compare  -8.0    7.0    -> -1
    171 comx221 compare  -8.0    7      -> -1
    172 comx222 compare  -8      7.0    -> -1
    173 comx223 compare  -8E+0   7.0    -> -1
    174 comx224 compare  -80E-1  7.0    -> -1
    175 comx225 compare  -0.8E+1 7      -> -1
    176 comx226 compare  -80E-1  7      -> -1
    177 comx227 compare  -8.0    7E+0   -> -1
    178 comx228 compare  -8.0    70E-1  -> -1
    179 comx229 compare  -8      0.7E+1 -> -1
    180 comx230 compare  -8      70E-1  -> -1
    181 
    182 comx240 compare  -8.0    9.0    -> -1
    183 comx241 compare  -8.0    9      -> -1
    184 comx242 compare  -8      9.0    -> -1
    185 comx243 compare  -8E+0   9.0    -> -1
    186 comx244 compare  -80E-1  9.0    -> -1
    187 comx245 compare  -0.8E+1 9      -> -1
    188 comx246 compare  -80E-1  9      -> -1
    189 comx247 compare  -8.0    9E+0   -> -1
    190 comx248 compare  -8.0    90E-1  -> -1
    191 comx249 compare  -8      0.9E+1 -> -1
    192 comx250 compare  -8      90E-1  -> -1
    193 
    194 -- and again, with sign changes +- ..
    195 comx300 compare   7.0    -7.0    -> 1
    196 comx301 compare   7.0    -7      -> 1
    197 comx302 compare   7      -7.0    -> 1
    198 comx303 compare   7E+0   -7.0    -> 1
    199 comx304 compare   70E-1  -7.0    -> 1
    200 comx305 compare   .7E+1  -7      -> 1
    201 comx306 compare   70E-1  -7      -> 1
    202 comx307 compare   7.0    -7E+0   -> 1
    203 comx308 compare   7.0    -70E-1  -> 1
    204 comx309 compare   7      -.7E+1  -> 1
    205 comx310 compare   7      -70E-1  -> 1
    206 
    207 comx320 compare   8.0    -7.0    -> 1
    208 comx321 compare   8.0    -7      -> 1
    209 comx322 compare   8      -7.0    -> 1
    210 comx323 compare   8E+0   -7.0    -> 1
    211 comx324 compare   80E-1  -7.0    -> 1
    212 comx325 compare   .8E+1  -7      -> 1
    213 comx326 compare   80E-1  -7      -> 1
    214 comx327 compare   8.0    -7E+0   -> 1
    215 comx328 compare   8.0    -70E-1  -> 1
    216 comx329 compare   8      -.7E+1  -> 1
    217 comx330 compare   8      -70E-1  -> 1
    218 
    219 comx340 compare   8.0    -9.0    -> 1
    220 comx341 compare   8.0    -9      -> 1
    221 comx342 compare   8      -9.0    -> 1
    222 comx343 compare   8E+0   -9.0    -> 1
    223 comx344 compare   80E-1  -9.0    -> 1
    224 comx345 compare   .8E+1  -9      -> 1
    225 comx346 compare   80E-1  -9      -> 1
    226 comx347 compare   8.0    -9E+0   -> 1
    227 comx348 compare   8.0    -90E-1  -> 1
    228 comx349 compare   8      -.9E+1  -> 1
    229 comx350 compare   8      -90E-1  -> 1
    230 
    231 -- and again, with sign changes -- ..
    232 comx400 compare   -7.0    -7.0    -> 0
    233 comx401 compare   -7.0    -7      -> 0
    234 comx402 compare   -7      -7.0    -> 0
    235 comx403 compare   -7E+0   -7.0    -> 0
    236 comx404 compare   -70E-1  -7.0    -> 0
    237 comx405 compare   -.7E+1  -7      -> 0
    238 comx406 compare   -70E-1  -7      -> 0
    239 comx407 compare   -7.0    -7E+0   -> 0
    240 comx408 compare   -7.0    -70E-1  -> 0
    241 comx409 compare   -7      -.7E+1  -> 0
    242 comx410 compare   -7      -70E-1  -> 0
    243 
    244 comx420 compare   -8.0    -7.0    -> -1
    245 comx421 compare   -8.0    -7      -> -1
    246 comx422 compare   -8      -7.0    -> -1
    247 comx423 compare   -8E+0   -7.0    -> -1
    248 comx424 compare   -80E-1  -7.0    -> -1
    249 comx425 compare   -.8E+1  -7      -> -1
    250 comx426 compare   -80E-1  -7      -> -1
    251 comx427 compare   -8.0    -7E+0   -> -1
    252 comx428 compare   -8.0    -70E-1  -> -1
    253 comx429 compare   -8      -.7E+1  -> -1
    254 comx430 compare   -8      -70E-1  -> -1
    255 
    256 comx440 compare   -8.0    -9.0    -> 1
    257 comx441 compare   -8.0    -9      -> 1
    258 comx442 compare   -8      -9.0    -> 1
    259 comx443 compare   -8E+0   -9.0    -> 1
    260 comx444 compare   -80E-1  -9.0    -> 1
    261 comx445 compare   -.8E+1  -9      -> 1
    262 comx446 compare   -80E-1  -9      -> 1
    263 comx447 compare   -8.0    -9E+0   -> 1
    264 comx448 compare   -8.0    -90E-1  -> 1
    265 comx449 compare   -8      -.9E+1  -> 1
    266 comx450 compare   -8      -90E-1  -> 1
    267 
    268 -- misalignment traps for little-endian
    269 comx451 compare      1.0       0.1  -> 1
    270 comx452 compare      0.1       1.0  -> -1
    271 comx453 compare     10.0       0.1  -> 1
    272 comx454 compare      0.1      10.0  -> -1
    273 comx455 compare      100       1.0  -> 1
    274 comx456 compare      1.0       100  -> -1
    275 comx457 compare     1000      10.0  -> 1
    276 comx458 compare     10.0      1000  -> -1
    277 comx459 compare    10000     100.0  -> 1
    278 comx460 compare    100.0     10000  -> -1
    279 comx461 compare   100000    1000.0  -> 1
    280 comx462 compare   1000.0    100000  -> -1
    281 comx463 compare  1000000   10000.0  -> 1
    282 comx464 compare  10000.0   1000000  -> -1
    283 
    284 -- testcases that subtract to lots of zeros at boundaries [pgr]
    285 precision: 40
    286 comx470 compare 123.4560000000000000E789 123.456E789 -> 0
    287 comx471 compare 123.456000000000000E-89 123.456E-89 -> 0
    288 comx472 compare 123.45600000000000E789 123.456E789 -> 0
    289 comx473 compare 123.4560000000000E-89 123.456E-89 -> 0
    290 comx474 compare 123.456000000000E789 123.456E789 -> 0
    291 comx475 compare 123.45600000000E-89 123.456E-89 -> 0
    292 comx476 compare 123.4560000000E789 123.456E789 -> 0
    293 comx477 compare 123.456000000E-89 123.456E-89 -> 0
    294 comx478 compare 123.45600000E789 123.456E789 -> 0
    295 comx479 compare 123.4560000E-89 123.456E-89 -> 0
    296 comx480 compare 123.456000E789 123.456E789 -> 0
    297 comx481 compare 123.45600E-89 123.456E-89 -> 0
    298 comx482 compare 123.4560E789 123.456E789 -> 0
    299 comx483 compare 123.456E-89 123.456E-89 -> 0
    300 comx484 compare 123.456E-89 123.4560000000000000E-89 -> 0
    301 comx485 compare 123.456E789 123.456000000000000E789 -> 0
    302 comx486 compare 123.456E-89 123.45600000000000E-89 -> 0
    303 comx487 compare 123.456E789 123.4560000000000E789 -> 0
    304 comx488 compare 123.456E-89 123.456000000000E-89 -> 0
    305 comx489 compare 123.456E789 123.45600000000E789 -> 0
    306 comx490 compare 123.456E-89 123.4560000000E-89 -> 0
    307 comx491 compare 123.456E789 123.456000000E789 -> 0
    308 comx492 compare 123.456E-89 123.45600000E-89 -> 0
    309 comx493 compare 123.456E789 123.4560000E789 -> 0
    310 comx494 compare 123.456E-89 123.456000E-89 -> 0
    311 comx495 compare 123.456E789 123.45600E789 -> 0
    312 comx496 compare 123.456E-89 123.4560E-89 -> 0
    313 comx497 compare 123.456E789 123.456E789 -> 0
    314 
    315 -- wide-ranging, around precision; signs equal
    316 precision: 9
    317 comx500 compare    1     1E-15    -> 1
    318 comx501 compare    1     1E-14    -> 1
    319 comx502 compare    1     1E-13    -> 1
    320 comx503 compare    1     1E-12    -> 1
    321 comx504 compare    1     1E-11    -> 1
    322 comx505 compare    1     1E-10    -> 1
    323 comx506 compare    1     1E-9     -> 1
    324 comx507 compare    1     1E-8     -> 1
    325 comx508 compare    1     1E-7     -> 1
    326 comx509 compare    1     1E-6     -> 1
    327 comx510 compare    1     1E-5     -> 1
    328 comx511 compare    1     1E-4     -> 1
    329 comx512 compare    1     1E-3     -> 1
    330 comx513 compare    1     1E-2     -> 1
    331 comx514 compare    1     1E-1     -> 1
    332 comx515 compare    1     1E-0     -> 0
    333 comx516 compare    1     1E+1     -> -1
    334 comx517 compare    1     1E+2     -> -1
    335 comx518 compare    1     1E+3     -> -1
    336 comx519 compare    1     1E+4     -> -1
    337 comx521 compare    1     1E+5     -> -1
    338 comx522 compare    1     1E+6     -> -1
    339 comx523 compare    1     1E+7     -> -1
    340 comx524 compare    1     1E+8     -> -1
    341 comx525 compare    1     1E+9     -> -1
    342 comx526 compare    1     1E+10    -> -1
    343 comx527 compare    1     1E+11    -> -1
    344 comx528 compare    1     1E+12    -> -1
    345 comx529 compare    1     1E+13    -> -1
    346 comx530 compare    1     1E+14    -> -1
    347 comx531 compare    1     1E+15    -> -1
    348 -- LR swap
    349 comx540 compare    1E-15  1       -> -1
    350 comx541 compare    1E-14  1       -> -1
    351 comx542 compare    1E-13  1       -> -1
    352 comx543 compare    1E-12  1       -> -1
    353 comx544 compare    1E-11  1       -> -1
    354 comx545 compare    1E-10  1       -> -1
    355 comx546 compare    1E-9   1       -> -1
    356 comx547 compare    1E-8   1       -> -1
    357 comx548 compare    1E-7   1       -> -1
    358 comx549 compare    1E-6   1       -> -1
    359 comx550 compare    1E-5   1       -> -1
    360 comx551 compare    1E-4   1       -> -1
    361 comx552 compare    1E-3   1       -> -1
    362 comx553 compare    1E-2   1       -> -1
    363 comx554 compare    1E-1   1       -> -1
    364 comx555 compare    1E-0   1       ->  0
    365 comx556 compare    1E+1   1       ->  1
    366 comx557 compare    1E+2   1       ->  1
    367 comx558 compare    1E+3   1       ->  1
    368 comx559 compare    1E+4   1       ->  1
    369 comx561 compare    1E+5   1       ->  1
    370 comx562 compare    1E+6   1       ->  1
    371 comx563 compare    1E+7   1       ->  1
    372 comx564 compare    1E+8   1       ->  1
    373 comx565 compare    1E+9   1       ->  1
    374 comx566 compare    1E+10  1       ->  1
    375 comx567 compare    1E+11  1       ->  1
    376 comx568 compare    1E+12  1       ->  1
    377 comx569 compare    1E+13  1       ->  1
    378 comx570 compare    1E+14  1       ->  1
    379 comx571 compare    1E+15  1       ->  1
    380 -- similar with a useful coefficient, one side only
    381 comx580 compare  0.000000987654321     1E-15    -> 1
    382 comx581 compare  0.000000987654321     1E-14    -> 1
    383 comx582 compare  0.000000987654321     1E-13    -> 1
    384 comx583 compare  0.000000987654321     1E-12    -> 1
    385 comx584 compare  0.000000987654321     1E-11    -> 1
    386 comx585 compare  0.000000987654321     1E-10    -> 1
    387 comx586 compare  0.000000987654321     1E-9     -> 1
    388 comx587 compare  0.000000987654321     1E-8     -> 1
    389 comx588 compare  0.000000987654321     1E-7     -> 1
    390 comx589 compare  0.000000987654321     1E-6     -> -1
    391 comx590 compare  0.000000987654321     1E-5     -> -1
    392 comx591 compare  0.000000987654321     1E-4     -> -1
    393 comx592 compare  0.000000987654321     1E-3     -> -1
    394 comx593 compare  0.000000987654321     1E-2     -> -1
    395 comx594 compare  0.000000987654321     1E-1     -> -1
    396 comx595 compare  0.000000987654321     1E-0     -> -1
    397 comx596 compare  0.000000987654321     1E+1     -> -1
    398 comx597 compare  0.000000987654321     1E+2     -> -1
    399 comx598 compare  0.000000987654321     1E+3     -> -1
    400 comx599 compare  0.000000987654321     1E+4     -> -1
    401 
    402 -- check some unit-y traps
    403 precision: 20
    404 comx600 compare   12            12.2345 -> -1
    405 comx601 compare   12.0          12.2345 -> -1
    406 comx602 compare   12.00         12.2345 -> -1
    407 comx603 compare   12.000        12.2345 -> -1
    408 comx604 compare   12.0000       12.2345 -> -1
    409 comx605 compare   12.00000      12.2345 -> -1
    410 comx606 compare   12.000000     12.2345 -> -1
    411 comx607 compare   12.0000000    12.2345 -> -1
    412 comx608 compare   12.00000000   12.2345 -> -1
    413 comx609 compare   12.000000000  12.2345 -> -1
    414 comx610 compare   12.1234 12            ->  1
    415 comx611 compare   12.1234 12.0          ->  1
    416 comx612 compare   12.1234 12.00         ->  1
    417 comx613 compare   12.1234 12.000        ->  1
    418 comx614 compare   12.1234 12.0000       ->  1
    419 comx615 compare   12.1234 12.00000      ->  1
    420 comx616 compare   12.1234 12.000000     ->  1
    421 comx617 compare   12.1234 12.0000000    ->  1
    422 comx618 compare   12.1234 12.00000000   ->  1
    423 comx619 compare   12.1234 12.000000000  ->  1
    424 comx620 compare  -12           -12.2345 ->  1
    425 comx621 compare  -12.0         -12.2345 ->  1
    426 comx622 compare  -12.00        -12.2345 ->  1
    427 comx623 compare  -12.000       -12.2345 ->  1
    428 comx624 compare  -12.0000      -12.2345 ->  1
    429 comx625 compare  -12.00000     -12.2345 ->  1
    430 comx626 compare  -12.000000    -12.2345 ->  1
    431 comx627 compare  -12.0000000   -12.2345 ->  1
    432 comx628 compare  -12.00000000  -12.2345 ->  1
    433 comx629 compare  -12.000000000 -12.2345 ->  1
    434 comx630 compare  -12.1234 -12           -> -1
    435 comx631 compare  -12.1234 -12.0         -> -1
    436 comx632 compare  -12.1234 -12.00        -> -1
    437 comx633 compare  -12.1234 -12.000       -> -1
    438 comx634 compare  -12.1234 -12.0000      -> -1
    439 comx635 compare  -12.1234 -12.00000     -> -1
    440 comx636 compare  -12.1234 -12.000000    -> -1
    441 comx637 compare  -12.1234 -12.0000000   -> -1
    442 comx638 compare  -12.1234 -12.00000000  -> -1
    443 comx639 compare  -12.1234 -12.000000000 -> -1
    444 precision: 9
    445 
    446 -- extended zeros
    447 comx640 compare   0     0   -> 0
    448 comx641 compare   0    -0   -> 0
    449 comx642 compare   0    -0.0 -> 0
    450 comx643 compare   0     0.0 -> 0
    451 comx644 compare  -0     0   -> 0
    452 comx645 compare  -0    -0   -> 0
    453 comx646 compare  -0    -0.0 -> 0
    454 comx647 compare  -0     0.0 -> 0
    455 comx648 compare   0.0   0   -> 0
    456 comx649 compare   0.0  -0   -> 0
    457 comx650 compare   0.0  -0.0 -> 0
    458 comx651 compare   0.0   0.0 -> 0
    459 comx652 compare  -0.0   0   -> 0
    460 comx653 compare  -0.0  -0   -> 0
    461 comx654 compare  -0.0  -0.0 -> 0
    462 comx655 compare  -0.0   0.0 -> 0
    463 
    464 comx656 compare  -0E1   0.0 -> 0
    465 comx657 compare  -0E2   0.0 -> 0
    466 comx658 compare   0E1   0.0 -> 0
    467 comx659 compare   0E2   0.0 -> 0
    468 comx660 compare  -0E1   0   -> 0
    469 comx661 compare  -0E2   0   -> 0
    470 comx662 compare   0E1   0   -> 0
    471 comx663 compare   0E2   0   -> 0
    472 comx664 compare  -0E1  -0E1 -> 0
    473 comx665 compare  -0E2  -0E1 -> 0
    474 comx666 compare   0E1  -0E1 -> 0
    475 comx667 compare   0E2  -0E1 -> 0
    476 comx668 compare  -0E1  -0E2 -> 0
    477 comx669 compare  -0E2  -0E2 -> 0
    478 comx670 compare   0E1  -0E2 -> 0
    479 comx671 compare   0E2  -0E2 -> 0
    480 comx672 compare  -0E1   0E1 -> 0
    481 comx673 compare  -0E2   0E1 -> 0
    482 comx674 compare   0E1   0E1 -> 0
    483 comx675 compare   0E2   0E1 -> 0
    484 comx676 compare  -0E1   0E2 -> 0
    485 comx677 compare  -0E2   0E2 -> 0
    486 comx678 compare   0E1   0E2 -> 0
    487 comx679 compare   0E2   0E2 -> 0
    488 
    489 -- trailing zeros; unit-y
    490 precision: 20
    491 comx680 compare   12    12           -> 0
    492 comx681 compare   12    12.0         -> 0
    493 comx682 compare   12    12.00        -> 0
    494 comx683 compare   12    12.000       -> 0
    495 comx684 compare   12    12.0000      -> 0
    496 comx685 compare   12    12.00000     -> 0
    497 comx686 compare   12    12.000000    -> 0
    498 comx687 compare   12    12.0000000   -> 0
    499 comx688 compare   12    12.00000000  -> 0
    500 comx689 compare   12    12.000000000 -> 0
    501 comx690 compare   12              12 -> 0
    502 comx691 compare   12.0            12 -> 0
    503 comx692 compare   12.00           12 -> 0
    504 comx693 compare   12.000          12 -> 0
    505 comx694 compare   12.0000         12 -> 0
    506 comx695 compare   12.00000        12 -> 0
    507 comx696 compare   12.000000       12 -> 0
    508 comx697 compare   12.0000000      12 -> 0
    509 comx698 compare   12.00000000     12 -> 0
    510 comx699 compare   12.000000000    12 -> 0
    511 
    512 -- long operand checks
    513 maxexponent: 999
    514 minexponent: -999
    515 precision: 9
    516 comx701 compare 12345678000  1 ->  1
    517 comx702 compare 1 12345678000  -> -1
    518 comx703 compare 1234567800   1 ->  1
    519 comx704 compare 1 1234567800   -> -1
    520 comx705 compare 1234567890   1 ->  1
    521 comx706 compare 1 1234567890   -> -1
    522 comx707 compare 1234567891   1 ->  1
    523 comx708 compare 1 1234567891   -> -1
    524 comx709 compare 12345678901  1 ->  1
    525 comx710 compare 1 12345678901  -> -1
    526 comx711 compare 1234567896   1 ->  1
    527 comx712 compare 1 1234567896   -> -1
    528 comx713 compare -1234567891  1 -> -1
    529 comx714 compare 1 -1234567891  ->  1
    530 comx715 compare -12345678901 1 -> -1
    531 comx716 compare 1 -12345678901 ->  1
    532 comx717 compare -1234567896  1 -> -1
    533 comx718 compare 1 -1234567896  ->  1
    534 
    535 precision: 15
    536 -- same with plenty of precision
    537 comx721 compare 12345678000 1 -> 1
    538 comx722 compare 1 12345678000 -> -1
    539 comx723 compare 1234567800  1 -> 1
    540 comx724 compare 1 1234567800  -> -1
    541 comx725 compare 1234567890  1 -> 1
    542 comx726 compare 1 1234567890  -> -1
    543 comx727 compare 1234567891  1 -> 1
    544 comx728 compare 1 1234567891  -> -1
    545 comx729 compare 12345678901 1 -> 1
    546 comx730 compare 1 12345678901 -> -1
    547 comx731 compare 1234567896  1 -> 1
    548 comx732 compare 1 1234567896  -> -1
    549 
    550 -- residue cases
    551 precision: 5
    552 comx740 compare  1  0.9999999  -> 1
    553 comx741 compare  1  0.999999   -> 1
    554 comx742 compare  1  0.99999    -> 1
    555 comx743 compare  1  1.0000     -> 0
    556 comx744 compare  1  1.00001    -> -1
    557 comx745 compare  1  1.000001   -> -1
    558 comx746 compare  1  1.0000001  -> -1
    559 comx750 compare  0.9999999  1  -> -1
    560 comx751 compare  0.999999   1  -> -1
    561 comx752 compare  0.99999    1  -> -1
    562 comx753 compare  1.0000     1  -> 0
    563 comx754 compare  1.00001    1  -> 1
    564 comx755 compare  1.000001   1  -> 1
    565 comx756 compare  1.0000001  1  -> 1
    566 
    567 -- a selection of longies
    568 comx760 compare -36852134.84194296250843579428931 -5830629.8347085025808756560357940 -> -1
    569 comx761 compare -36852134.84194296250843579428931 -36852134.84194296250843579428931  -> 0
    570 comx762 compare -36852134.94194296250843579428931 -36852134.84194296250843579428931  -> -1
    571 comx763 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    572 -- precisions above or below the difference should have no effect
    573 precision:   11
    574 comx764 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    575 precision:   10
    576 comx765 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    577 precision:    9
    578 comx766 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    579 precision:    8
    580 comx767 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    581 precision:    7
    582 comx768 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    583 precision:    6
    584 comx769 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    585 precision:    5
    586 comx770 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    587 precision:    4
    588 comx771 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    589 precision:    3
    590 comx772 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    591 precision:    2
    592 comx773 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    593 precision:    1
    594 comx774 compare -36852134.84194296250843579428931 -36852134.94194296250843579428931  -> 1
    595 
    596 -- Specials
    597 precision:   9
    598 comx780 compare  Inf  -Inf   ->  1
    599 comx781 compare  Inf  -1000  ->  1
    600 comx782 compare  Inf  -1     ->  1
    601 comx783 compare  Inf  -0     ->  1
    602 comx784 compare  Inf   0     ->  1
    603 comx785 compare  Inf   1     ->  1
    604 comx786 compare  Inf   1000  ->  1
    605 comx787 compare  Inf   Inf   ->  0
    606 comx788 compare -1000  Inf   -> -1
    607 comx789 compare -Inf   Inf   -> -1
    608 comx790 compare -1     Inf   -> -1
    609 comx791 compare -0     Inf   -> -1
    610 comx792 compare  0     Inf   -> -1
    611 comx793 compare  1     Inf   -> -1
    612 comx794 compare  1000  Inf   -> -1
    613 comx795 compare  Inf   Inf   ->  0
    614 
    615 comx800 compare -Inf  -Inf   ->  0
    616 comx801 compare -Inf  -1000  -> -1
    617 comx802 compare -Inf  -1     -> -1
    618 comx803 compare -Inf  -0     -> -1
    619 comx804 compare -Inf   0     -> -1
    620 comx805 compare -Inf   1     -> -1
    621 comx806 compare -Inf   1000  -> -1
    622 comx807 compare -Inf   Inf   -> -1
    623 comx808 compare -Inf  -Inf   ->  0
    624 comx809 compare -1000 -Inf   ->  1
    625 comx810 compare -1    -Inf   ->  1
    626 comx811 compare -0    -Inf   ->  1
    627 comx812 compare  0    -Inf   ->  1
    628 comx813 compare  1    -Inf   ->  1
    629 comx814 compare  1000 -Inf   ->  1
    630 comx815 compare  Inf  -Inf   ->  1
    631 
    632 comx821 compare  NaN -Inf    ->  NaN
    633 comx822 compare  NaN -1000   ->  NaN
    634 comx823 compare  NaN -1      ->  NaN
    635 comx824 compare  NaN -0      ->  NaN
    636 comx825 compare  NaN  0      ->  NaN
    637 comx826 compare  NaN  1      ->  NaN
    638 comx827 compare  NaN  1000   ->  NaN
    639 comx828 compare  NaN  Inf    ->  NaN
    640 comx829 compare  NaN  NaN    ->  NaN
    641 comx830 compare -Inf  NaN    ->  NaN
    642 comx831 compare -1000 NaN    ->  NaN
    643 comx832 compare -1    NaN    ->  NaN
    644 comx833 compare -0    NaN    ->  NaN
    645 comx834 compare  0    NaN    ->  NaN
    646 comx835 compare  1    NaN    ->  NaN
    647 comx836 compare  1000 NaN    ->  NaN
    648 comx837 compare  Inf  NaN    ->  NaN
    649 comx838 compare -NaN -NaN    -> -NaN
    650 comx839 compare +NaN -NaN    ->  NaN
    651 comx840 compare -NaN +NaN    -> -NaN
    652 
    653 comx841 compare  sNaN -Inf   ->  NaN  Invalid_operation
    654 comx842 compare  sNaN -1000  ->  NaN  Invalid_operation
    655 comx843 compare  sNaN -1     ->  NaN  Invalid_operation
    656 comx844 compare  sNaN -0     ->  NaN  Invalid_operation
    657 comx845 compare  sNaN  0     ->  NaN  Invalid_operation
    658 comx846 compare  sNaN  1     ->  NaN  Invalid_operation
    659 comx847 compare  sNaN  1000  ->  NaN  Invalid_operation
    660 comx848 compare  sNaN  NaN   ->  NaN  Invalid_operation
    661 comx849 compare  sNaN sNaN   ->  NaN  Invalid_operation
    662 comx850 compare  NaN  sNaN   ->  NaN  Invalid_operation
    663 comx851 compare -Inf  sNaN   ->  NaN  Invalid_operation
    664 comx852 compare -1000 sNaN   ->  NaN  Invalid_operation
    665 comx853 compare -1    sNaN   ->  NaN  Invalid_operation
    666 comx854 compare -0    sNaN   ->  NaN  Invalid_operation
    667 comx855 compare  0    sNaN   ->  NaN  Invalid_operation
    668 comx856 compare  1    sNaN   ->  NaN  Invalid_operation
    669 comx857 compare  1000 sNaN   ->  NaN  Invalid_operation
    670 comx858 compare  Inf  sNaN   ->  NaN  Invalid_operation
    671 comx859 compare  NaN  sNaN   ->  NaN  Invalid_operation
    672 
    673 -- propagating NaNs
    674 comx860 compare  NaN9 -Inf   ->  NaN9
    675 comx861 compare  NaN8  999   ->  NaN8
    676 comx862 compare  NaN77 Inf   ->  NaN77
    677 comx863 compare -NaN67 NaN5  -> -NaN67
    678 comx864 compare -Inf  -NaN4  -> -NaN4
    679 comx865 compare -999  -NaN33 -> -NaN33
    680 comx866 compare  Inf   NaN2  ->  NaN2
    681 comx867 compare -NaN41 -NaN42 -> -NaN41
    682 comx868 compare +NaN41 -NaN42 ->  NaN41
    683 comx869 compare -NaN41 +NaN42 -> -NaN41
    684 comx870 compare +NaN41 +NaN42 ->  NaN41
    685 
    686 comx871 compare -sNaN99 -Inf    -> -NaN99 Invalid_operation
    687 comx872 compare  sNaN98 -11     ->  NaN98 Invalid_operation
    688 comx873 compare  sNaN97  NaN    ->  NaN97 Invalid_operation
    689 comx874 compare  sNaN16 sNaN94  ->  NaN16 Invalid_operation
    690 comx875 compare  NaN85  sNaN83  ->  NaN83 Invalid_operation
    691 comx876 compare -Inf    sNaN92  ->  NaN92 Invalid_operation
    692 comx877 compare  088    sNaN81  ->  NaN81 Invalid_operation
    693 comx878 compare  Inf    sNaN90  ->  NaN90 Invalid_operation
    694 comx879 compare  NaN   -sNaN89  -> -NaN89 Invalid_operation
    695 
    696 -- overflow and underflow tests .. subnormal results now allowed
    697 maxExponent: 999999999
    698 minexponent: -999999999
    699 comx880 compare +1.23456789012345E-0 9E+999999999 -> -1
    700 comx881 compare 9E+999999999 +1.23456789012345E-0 ->  1
    701 comx882 compare +0.100 9E-999999999               ->  1
    702 comx883 compare 9E-999999999 +0.100               -> -1
    703 comx885 compare -1.23456789012345E-0 9E+999999999 -> -1
    704 comx886 compare 9E+999999999 -1.23456789012345E-0 ->  1
    705 comx887 compare -0.100 9E-999999999               -> -1
    706 comx888 compare 9E-999999999 -0.100               ->  1
    707 
    708 comx889 compare 1e-599999999 1e-400000001   -> -1
    709 comx890 compare 1e-599999999 1e-400000000   -> -1
    710 comx891 compare 1e-600000000 1e-400000000   -> -1
    711 comx892 compare 9e-999999998 0.01           -> -1
    712 comx893 compare 9e-999999998 0.1            -> -1
    713 comx894 compare 0.01 9e-999999998           ->  1
    714 comx895 compare 1e599999999 1e400000001     ->  1
    715 comx896 compare 1e599999999 1e400000000     ->  1
    716 comx897 compare 1e600000000 1e400000000     ->  1
    717 comx898 compare 9e999999998 100             ->  1
    718 comx899 compare 9e999999998 10              ->  1
    719 comx900 compare 100  9e999999998            -> -1
    720 -- signs
    721 comx901 compare  1e+777777777  1e+411111111 ->  1
    722 comx902 compare  1e+777777777 -1e+411111111 ->  1
    723 comx903 compare -1e+777777777  1e+411111111 -> -1
    724 comx904 compare -1e+777777777 -1e+411111111 -> -1
    725 comx905 compare  1e-777777777  1e-411111111 -> -1
    726 comx906 compare  1e-777777777 -1e-411111111 ->  1
    727 comx907 compare -1e-777777777  1e-411111111 -> -1
    728 comx908 compare -1e-777777777 -1e-411111111 ->  1
    729 
    730 -- spread zeros
    731 comx910 compare   0E-383  0       ->  0
    732 comx911 compare   0E-383 -0       ->  0
    733 comx912 compare  -0E-383  0       ->  0
    734 comx913 compare  -0E-383 -0       ->  0
    735 comx914 compare   0E-383  0E+384  ->  0
    736 comx915 compare   0E-383 -0E+384  ->  0
    737 comx916 compare  -0E-383  0E+384  ->  0
    738 comx917 compare  -0E-383 -0E+384  ->  0
    739 comx918 compare   0       0E+384  ->  0
    740 comx919 compare   0      -0E+384  ->  0
    741 comx920 compare  -0       0E+384  ->  0
    742 comx921 compare  -0      -0E+384  ->  0
    743 comx930 compare   0E+384  0       ->  0
    744 comx931 compare   0E+384 -0       ->  0
    745 comx932 compare  -0E+384  0       ->  0
    746 comx933 compare  -0E+384 -0       ->  0
    747 comx934 compare   0E+384  0E-383  ->  0
    748 comx935 compare   0E+384 -0E-383  ->  0
    749 comx936 compare  -0E+384  0E-383  ->  0
    750 comx937 compare  -0E+384 -0E-383  ->  0
    751 comx938 compare   0       0E-383  ->  0
    752 comx939 compare   0      -0E-383  ->  0
    753 comx940 compare  -0       0E-383  ->  0
    754 comx941 compare  -0      -0E-383  ->  0
    755 
    756 -- Null tests
    757 comx990 compare 10  # -> NaN Invalid_operation
    758 comx991 compare  # 10 -> NaN Invalid_operation
    759