------------------------------------------------------------------------ -- ddCompare.decTest -- decDouble comparison that allows quiet NaNs -- -- Copyright (c) Mike Cowlishaw, 1981, 2010. All rights reserved. -- -- Parts copyright (c) IBM Corporation, 1981, 2008. -- ------------------------------------------------------------------------ -- Please see the document "General Decimal Arithmetic Testcases" -- -- at http://speleotrove.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, mfc@speleotrove.com -- ------------------------------------------------------------------------ version: 2.62 -- Note that we cannot assume add/subtract tests cover paths adequately, -- here, because the code might be quite different (comparison cannot -- overflow or underflow, so actual subtractions are not necessary). -- All operands and results are decDoubles. precision: 16 maxExponent: 384 minExponent: -383 extended: 1 clamp: 1 rounding: half_even -- sanity checks ddcom001 compare -2 -2 -> 0 ddcom002 compare -2 -1 -> -1 ddcom003 compare -2 0 -> -1 ddcom004 compare -2 1 -> -1 ddcom005 compare -2 2 -> -1 ddcom006 compare -1 -2 -> 1 ddcom007 compare -1 -1 -> 0 ddcom008 compare -1 0 -> -1 ddcom009 compare -1 1 -> -1 ddcom010 compare -1 2 -> -1 ddcom011 compare 0 -2 -> 1 ddcom012 compare 0 -1 -> 1 ddcom013 compare 0 0 -> 0 ddcom014 compare 0 1 -> -1 ddcom015 compare 0 2 -> -1 ddcom016 compare 1 -2 -> 1 ddcom017 compare 1 -1 -> 1 ddcom018 compare 1 0 -> 1 ddcom019 compare 1 1 -> 0 ddcom020 compare 1 2 -> -1 ddcom021 compare 2 -2 -> 1 ddcom022 compare 2 -1 -> 1 ddcom023 compare 2 0 -> 1 ddcom025 compare 2 1 -> 1 ddcom026 compare 2 2 -> 0 ddcom031 compare -20 -20 -> 0 ddcom032 compare -20 -10 -> -1 ddcom033 compare -20 00 -> -1 ddcom034 compare -20 10 -> -1 ddcom035 compare -20 20 -> -1 ddcom036 compare -10 -20 -> 1 ddcom037 compare -10 -10 -> 0 ddcom038 compare -10 00 -> -1 ddcom039 compare -10 10 -> -1 ddcom040 compare -10 20 -> -1 ddcom041 compare 00 -20 -> 1 ddcom042 compare 00 -10 -> 1 ddcom043 compare 00 00 -> 0 ddcom044 compare 00 10 -> -1 ddcom045 compare 00 20 -> -1 ddcom046 compare 10 -20 -> 1 ddcom047 compare 10 -10 -> 1 ddcom048 compare 10 00 -> 1 ddcom049 compare 10 10 -> 0 ddcom050 compare 10 20 -> -1 ddcom051 compare 20 -20 -> 1 ddcom052 compare 20 -10 -> 1 ddcom053 compare 20 00 -> 1 ddcom055 compare 20 10 -> 1 ddcom056 compare 20 20 -> 0 ddcom061 compare -2.0 -2.0 -> 0 ddcom062 compare -2.0 -1.0 -> -1 ddcom063 compare -2.0 0.0 -> -1 ddcom064 compare -2.0 1.0 -> -1 ddcom065 compare -2.0 2.0 -> -1 ddcom066 compare -1.0 -2.0 -> 1 ddcom067 compare -1.0 -1.0 -> 0 ddcom068 compare -1.0 0.0 -> -1 ddcom069 compare -1.0 1.0 -> -1 ddcom070 compare -1.0 2.0 -> -1 ddcom071 compare 0.0 -2.0 -> 1 ddcom072 compare 0.0 -1.0 -> 1 ddcom073 compare 0.0 0.0 -> 0 ddcom074 compare 0.0 1.0 -> -1 ddcom075 compare 0.0 2.0 -> -1 ddcom076 compare 1.0 -2.0 -> 1 ddcom077 compare 1.0 -1.0 -> 1 ddcom078 compare 1.0 0.0 -> 1 ddcom079 compare 1.0 1.0 -> 0 ddcom080 compare 1.0 2.0 -> -1 ddcom081 compare 2.0 -2.0 -> 1 ddcom082 compare 2.0 -1.0 -> 1 ddcom083 compare 2.0 0.0 -> 1 ddcom085 compare 2.0 1.0 -> 1 ddcom086 compare 2.0 2.0 -> 0 ddcom087 compare 1.0 0.1 -> 1 ddcom088 compare 0.1 1.0 -> -1 -- now some cases which might overflow if subtract were used ddcom095 compare 9.999999999999999E+384 9.999999999999999E+384 -> 0 ddcom096 compare -9.999999999999999E+384 9.999999999999999E+384 -> -1 ddcom097 compare 9.999999999999999E+384 -9.999999999999999E+384 -> 1 ddcom098 compare -9.999999999999999E+384 -9.999999999999999E+384 -> 0 -- some differing length/exponent cases ddcom100 compare 7.0 7.0 -> 0 ddcom101 compare 7.0 7 -> 0 ddcom102 compare 7 7.0 -> 0 ddcom103 compare 7E+0 7.0 -> 0 ddcom104 compare 70E-1 7.0 -> 0 ddcom105 compare 0.7E+1 7 -> 0 ddcom106 compare 70E-1 7 -> 0 ddcom107 compare 7.0 7E+0 -> 0 ddcom108 compare 7.0 70E-1 -> 0 ddcom109 compare 7 0.7E+1 -> 0 ddcom110 compare 7 70E-1 -> 0 ddcom120 compare 8.0 7.0 -> 1 ddcom121 compare 8.0 7 -> 1 ddcom122 compare 8 7.0 -> 1 ddcom123 compare 8E+0 7.0 -> 1 ddcom124 compare 80E-1 7.0 -> 1 ddcom125 compare 0.8E+1 7 -> 1 ddcom126 compare 80E-1 7 -> 1 ddcom127 compare 8.0 7E+0 -> 1 ddcom128 compare 8.0 70E-1 -> 1 ddcom129 compare 8 0.7E+1 -> 1 ddcom130 compare 8 70E-1 -> 1 ddcom140 compare 8.0 9.0 -> -1 ddcom141 compare 8.0 9 -> -1 ddcom142 compare 8 9.0 -> -1 ddcom143 compare 8E+0 9.0 -> -1 ddcom144 compare 80E-1 9.0 -> -1 ddcom145 compare 0.8E+1 9 -> -1 ddcom146 compare 80E-1 9 -> -1 ddcom147 compare 8.0 9E+0 -> -1 ddcom148 compare 8.0 90E-1 -> -1 ddcom149 compare 8 0.9E+1 -> -1 ddcom150 compare 8 90E-1 -> -1 -- and again, with sign changes -+ .. ddcom200 compare -7.0 7.0 -> -1 ddcom201 compare -7.0 7 -> -1 ddcom202 compare -7 7.0 -> -1 ddcom203 compare -7E+0 7.0 -> -1 ddcom204 compare -70E-1 7.0 -> -1 ddcom205 compare -0.7E+1 7 -> -1 ddcom206 compare -70E-1 7 -> -1 ddcom207 compare -7.0 7E+0 -> -1 ddcom208 compare -7.0 70E-1 -> -1 ddcom209 compare -7 0.7E+1 -> -1 ddcom210 compare -7 70E-1 -> -1 ddcom220 compare -8.0 7.0 -> -1 ddcom221 compare -8.0 7 -> -1 ddcom222 compare -8 7.0 -> -1 ddcom223 compare -8E+0 7.0 -> -1 ddcom224 compare -80E-1 7.0 -> -1 ddcom225 compare -0.8E+1 7 -> -1 ddcom226 compare -80E-1 7 -> -1 ddcom227 compare -8.0 7E+0 -> -1 ddcom228 compare -8.0 70E-1 -> -1 ddcom229 compare -8 0.7E+1 -> -1 ddcom230 compare -8 70E-1 -> -1 ddcom240 compare -8.0 9.0 -> -1 ddcom241 compare -8.0 9 -> -1 ddcom242 compare -8 9.0 -> -1 ddcom243 compare -8E+0 9.0 -> -1 ddcom244 compare -80E-1 9.0 -> -1 ddcom245 compare -0.8E+1 9 -> -1 ddcom246 compare -80E-1 9 -> -1 ddcom247 compare -8.0 9E+0 -> -1 ddcom248 compare -8.0 90E-1 -> -1 ddcom249 compare -8 0.9E+1 -> -1 ddcom250 compare -8 90E-1 -> -1 -- and again, with sign changes +- .. ddcom300 compare 7.0 -7.0 -> 1 ddcom301 compare 7.0 -7 -> 1 ddcom302 compare 7 -7.0 -> 1 ddcom303 compare 7E+0 -7.0 -> 1 ddcom304 compare 70E-1 -7.0 -> 1 ddcom305 compare .7E+1 -7 -> 1 ddcom306 compare 70E-1 -7 -> 1 ddcom307 compare 7.0 -7E+0 -> 1 ddcom308 compare 7.0 -70E-1 -> 1 ddcom309 compare 7 -.7E+1 -> 1 ddcom310 compare 7 -70E-1 -> 1 ddcom320 compare 8.0 -7.0 -> 1 ddcom321 compare 8.0 -7 -> 1 ddcom322 compare 8 -7.0 -> 1 ddcom323 compare 8E+0 -7.0 -> 1 ddcom324 compare 80E-1 -7.0 -> 1 ddcom325 compare .8E+1 -7 -> 1 ddcom326 compare 80E-1 -7 -> 1 ddcom327 compare 8.0 -7E+0 -> 1 ddcom328 compare 8.0 -70E-1 -> 1 ddcom329 compare 8 -.7E+1 -> 1 ddcom330 compare 8 -70E-1 -> 1 ddcom340 compare 8.0 -9.0 -> 1 ddcom341 compare 8.0 -9 -> 1 ddcom342 compare 8 -9.0 -> 1 ddcom343 compare 8E+0 -9.0 -> 1 ddcom344 compare 80E-1 -9.0 -> 1 ddcom345 compare .8E+1 -9 -> 1 ddcom346 compare 80E-1 -9 -> 1 ddcom347 compare 8.0 -9E+0 -> 1 ddcom348 compare 8.0 -90E-1 -> 1 ddcom349 compare 8 -.9E+1 -> 1 ddcom350 compare 8 -90E-1 -> 1 -- and again, with sign changes -- .. ddcom400 compare -7.0 -7.0 -> 0 ddcom401 compare -7.0 -7 -> 0 ddcom402 compare -7 -7.0 -> 0 ddcom403 compare -7E+0 -7.0 -> 0 ddcom404 compare -70E-1 -7.0 -> 0 ddcom405 compare -.7E+1 -7 -> 0 ddcom406 compare -70E-1 -7 -> 0 ddcom407 compare -7.0 -7E+0 -> 0 ddcom408 compare -7.0 -70E-1 -> 0 ddcom409 compare -7 -.7E+1 -> 0 ddcom410 compare -7 -70E-1 -> 0 ddcom420 compare -8.0 -7.0 -> -1 ddcom421 compare -8.0 -7 -> -1 ddcom422 compare -8 -7.0 -> -1 ddcom423 compare -8E+0 -7.0 -> -1 ddcom424 compare -80E-1 -7.0 -> -1 ddcom425 compare -.8E+1 -7 -> -1 ddcom426 compare -80E-1 -7 -> -1 ddcom427 compare -8.0 -7E+0 -> -1 ddcom428 compare -8.0 -70E-1 -> -1 ddcom429 compare -8 -.7E+1 -> -1 ddcom430 compare -8 -70E-1 -> -1 ddcom440 compare -8.0 -9.0 -> 1 ddcom441 compare -8.0 -9 -> 1 ddcom442 compare -8 -9.0 -> 1 ddcom443 compare -8E+0 -9.0 -> 1 ddcom444 compare -80E-1 -9.0 -> 1 ddcom445 compare -.8E+1 -9 -> 1 ddcom446 compare -80E-1 -9 -> 1 ddcom447 compare -8.0 -9E+0 -> 1 ddcom448 compare -8.0 -90E-1 -> 1 ddcom449 compare -8 -.9E+1 -> 1 ddcom450 compare -8 -90E-1 -> 1 -- misalignment traps for little-endian ddcom451 compare 1.0 0.1 -> 1 ddcom452 compare 0.1 1.0 -> -1 ddcom453 compare 10.0 0.1 -> 1 ddcom454 compare 0.1 10.0 -> -1 ddcom455 compare 100 1.0 -> 1 ddcom456 compare 1.0 100 -> -1 ddcom457 compare 1000 10.0 -> 1 ddcom458 compare 10.0 1000 -> -1 ddcom459 compare 10000 100.0 -> 1 ddcom460 compare 100.0 10000 -> -1 ddcom461 compare 100000 1000.0 -> 1 ddcom462 compare 1000.0 100000 -> -1 ddcom463 compare 1000000 10000.0 -> 1 ddcom464 compare 10000.0 1000000 -> -1 -- testcases that subtract to lots of zeros at boundaries [pgr] ddcom473 compare 123.4560000000000E-89 123.456E-89 -> 0 ddcom474 compare 123.456000000000E+89 123.456E+89 -> 0 ddcom475 compare 123.45600000000E-89 123.456E-89 -> 0 ddcom476 compare 123.4560000000E+89 123.456E+89 -> 0 ddcom477 compare 123.456000000E-89 123.456E-89 -> 0 ddcom478 compare 123.45600000E+89 123.456E+89 -> 0 ddcom479 compare 123.4560000E-89 123.456E-89 -> 0 ddcom480 compare 123.456000E+89 123.456E+89 -> 0 ddcom481 compare 123.45600E-89 123.456E-89 -> 0 ddcom482 compare 123.4560E+89 123.456E+89 -> 0 ddcom483 compare 123.456E-89 123.456E-89 -> 0 ddcom487 compare 123.456E+89 123.4560000000000E+89 -> 0 ddcom488 compare 123.456E-89 123.456000000000E-89 -> 0 ddcom489 compare 123.456E+89 123.45600000000E+89 -> 0 ddcom490 compare 123.456E-89 123.4560000000E-89 -> 0 ddcom491 compare 123.456E+89 123.456000000E+89 -> 0 ddcom492 compare 123.456E-89 123.45600000E-89 -> 0 ddcom493 compare 123.456E+89 123.4560000E+89 -> 0 ddcom494 compare 123.456E-89 123.456000E-89 -> 0 ddcom495 compare 123.456E+89 123.45600E+89 -> 0 ddcom496 compare 123.456E-89 123.4560E-89 -> 0 ddcom497 compare 123.456E+89 123.456E+89 -> 0 -- wide-ranging, around precision; signs equal ddcom500 compare 1 1E-15 -> 1 ddcom501 compare 1 1E-14 -> 1 ddcom502 compare 1 1E-13 -> 1 ddcom503 compare 1 1E-12 -> 1 ddcom504 compare 1 1E-11 -> 1 ddcom505 compare 1 1E-10 -> 1 ddcom506 compare 1 1E-9 -> 1 ddcom507 compare 1 1E-8 -> 1 ddcom508 compare 1 1E-7 -> 1 ddcom509 compare 1 1E-6 -> 1 ddcom510 compare 1 1E-5 -> 1 ddcom511 compare 1 1E-4 -> 1 ddcom512 compare 1 1E-3 -> 1 ddcom513 compare 1 1E-2 -> 1 ddcom514 compare 1 1E-1 -> 1 ddcom515 compare 1 1E-0 -> 0 ddcom516 compare 1 1E+1 -> -1 ddcom517 compare 1 1E+2 -> -1 ddcom518 compare 1 1E+3 -> -1 ddcom519 compare 1 1E+4 -> -1 ddcom521 compare 1 1E+5 -> -1 ddcom522 compare 1 1E+6 -> -1 ddcom523 compare 1 1E+7 -> -1 ddcom524 compare 1 1E+8 -> -1 ddcom525 compare 1 1E+9 -> -1 ddcom526 compare 1 1E+10 -> -1 ddcom527 compare 1 1E+11 -> -1 ddcom528 compare 1 1E+12 -> -1 ddcom529 compare 1 1E+13 -> -1 ddcom530 compare 1 1E+14 -> -1 ddcom531 compare 1 1E+15 -> -1 -- LR swap ddcom540 compare 1E-15 1 -> -1 ddcom541 compare 1E-14 1 -> -1 ddcom542 compare 1E-13 1 -> -1 ddcom543 compare 1E-12 1 -> -1 ddcom544 compare 1E-11 1 -> -1 ddcom545 compare 1E-10 1 -> -1 ddcom546 compare 1E-9 1 -> -1 ddcom547 compare 1E-8 1 -> -1 ddcom548 compare 1E-7 1 -> -1 ddcom549 compare 1E-6 1 -> -1 ddcom550 compare 1E-5 1 -> -1 ddcom551 compare 1E-4 1 -> -1 ddcom552 compare 1E-3 1 -> -1 ddcom553 compare 1E-2 1 -> -1 ddcom554 compare 1E-1 1 -> -1 ddcom555 compare 1E-0 1 -> 0 ddcom556 compare 1E+1 1 -> 1 ddcom557 compare 1E+2 1 -> 1 ddcom558 compare 1E+3 1 -> 1 ddcom559 compare 1E+4 1 -> 1 ddcom561 compare 1E+5 1 -> 1 ddcom562 compare 1E+6 1 -> 1 ddcom563 compare 1E+7 1 -> 1 ddcom564 compare 1E+8 1 -> 1 ddcom565 compare 1E+9 1 -> 1 ddcom566 compare 1E+10 1 -> 1 ddcom567 compare 1E+11 1 -> 1 ddcom568 compare 1E+12 1 -> 1 ddcom569 compare 1E+13 1 -> 1 ddcom570 compare 1E+14 1 -> 1 ddcom571 compare 1E+15 1 -> 1 -- similar with a useful coefficient, one side only ddcom580 compare 0.000000987654321 1E-15 -> 1 ddcom581 compare 0.000000987654321 1E-14 -> 1 ddcom582 compare 0.000000987654321 1E-13 -> 1 ddcom583 compare 0.000000987654321 1E-12 -> 1 ddcom584 compare 0.000000987654321 1E-11 -> 1 ddcom585 compare 0.000000987654321 1E-10 -> 1 ddcom586 compare 0.000000987654321 1E-9 -> 1 ddcom587 compare 0.000000987654321 1E-8 -> 1 ddcom588 compare 0.000000987654321 1E-7 -> 1 ddcom589 compare 0.000000987654321 1E-6 -> -1 ddcom590 compare 0.000000987654321 1E-5 -> -1 ddcom591 compare 0.000000987654321 1E-4 -> -1 ddcom592 compare 0.000000987654321 1E-3 -> -1 ddcom593 compare 0.000000987654321 1E-2 -> -1 ddcom594 compare 0.000000987654321 1E-1 -> -1 ddcom595 compare 0.000000987654321 1E-0 -> -1 ddcom596 compare 0.000000987654321 1E+1 -> -1 ddcom597 compare 0.000000987654321 1E+2 -> -1 ddcom598 compare 0.000000987654321 1E+3 -> -1 ddcom599 compare 0.000000987654321 1E+4 -> -1 -- check some unit-y traps ddcom600 compare 12 12.2345 -> -1 ddcom601 compare 12.0 12.2345 -> -1 ddcom602 compare 12.00 12.2345 -> -1 ddcom603 compare 12.000 12.2345 -> -1 ddcom604 compare 12.0000 12.2345 -> -1 ddcom605 compare 12.00000 12.2345 -> -1 ddcom606 compare 12.000000 12.2345 -> -1 ddcom607 compare 12.0000000 12.2345 -> -1 ddcom608 compare 12.00000000 12.2345 -> -1 ddcom609 compare 12.000000000 12.2345 -> -1 ddcom610 compare 12.1234 12 -> 1 ddcom611 compare 12.1234 12.0 -> 1 ddcom612 compare 12.1234 12.00 -> 1 ddcom613 compare 12.1234 12.000 -> 1 ddcom614 compare 12.1234 12.0000 -> 1 ddcom615 compare 12.1234 12.00000 -> 1 ddcom616 compare 12.1234 12.000000 -> 1 ddcom617 compare 12.1234 12.0000000 -> 1 ddcom618 compare 12.1234 12.00000000 -> 1 ddcom619 compare 12.1234 12.000000000 -> 1 ddcom620 compare -12 -12.2345 -> 1 ddcom621 compare -12.0 -12.2345 -> 1 ddcom622 compare -12.00 -12.2345 -> 1 ddcom623 compare -12.000 -12.2345 -> 1 ddcom624 compare -12.0000 -12.2345 -> 1 ddcom625 compare -12.00000 -12.2345 -> 1 ddcom626 compare -12.000000 -12.2345 -> 1 ddcom627 compare -12.0000000 -12.2345 -> 1 ddcom628 compare -12.00000000 -12.2345 -> 1 ddcom629 compare -12.000000000 -12.2345 -> 1 ddcom630 compare -12.1234 -12 -> -1 ddcom631 compare -12.1234 -12.0 -> -1 ddcom632 compare -12.1234 -12.00 -> -1 ddcom633 compare -12.1234 -12.000 -> -1 ddcom634 compare -12.1234 -12.0000 -> -1 ddcom635 compare -12.1234 -12.00000 -> -1 ddcom636 compare -12.1234 -12.000000 -> -1 ddcom637 compare -12.1234 -12.0000000 -> -1 ddcom638 compare -12.1234 -12.00000000 -> -1 ddcom639 compare -12.1234 -12.000000000 -> -1 -- extended zeros ddcom640 compare 0 0 -> 0 ddcom641 compare 0 -0 -> 0 ddcom642 compare 0 -0.0 -> 0 ddcom643 compare 0 0.0 -> 0 ddcom644 compare -0 0 -> 0 ddcom645 compare -0 -0 -> 0 ddcom646 compare -0 -0.0 -> 0 ddcom647 compare -0 0.0 -> 0 ddcom648 compare 0.0 0 -> 0 ddcom649 compare 0.0 -0 -> 0 ddcom650 compare 0.0 -0.0 -> 0 ddcom651 compare 0.0 0.0 -> 0 ddcom652 compare -0.0 0 -> 0 ddcom653 compare -0.0 -0 -> 0 ddcom654 compare -0.0 -0.0 -> 0 ddcom655 compare -0.0 0.0 -> 0 ddcom656 compare -0E1 0.0 -> 0 ddcom657 compare -0E2 0.0 -> 0 ddcom658 compare 0E1 0.0 -> 0 ddcom659 compare 0E2 0.0 -> 0 ddcom660 compare -0E1 0 -> 0 ddcom661 compare -0E2 0 -> 0 ddcom662 compare 0E1 0 -> 0 ddcom663 compare 0E2 0 -> 0 ddcom664 compare -0E1 -0E1 -> 0 ddcom665 compare -0E2 -0E1 -> 0 ddcom666 compare 0E1 -0E1 -> 0 ddcom667 compare 0E2 -0E1 -> 0 ddcom668 compare -0E1 -0E2 -> 0 ddcom669 compare -0E2 -0E2 -> 0 ddcom670 compare 0E1 -0E2 -> 0 ddcom671 compare 0E2 -0E2 -> 0 ddcom672 compare -0E1 0E1 -> 0 ddcom673 compare -0E2 0E1 -> 0 ddcom674 compare 0E1 0E1 -> 0 ddcom675 compare 0E2 0E1 -> 0 ddcom676 compare -0E1 0E2 -> 0 ddcom677 compare -0E2 0E2 -> 0 ddcom678 compare 0E1 0E2 -> 0 ddcom679 compare 0E2 0E2 -> 0 -- trailing zeros; unit-y ddcom680 compare 12 12 -> 0 ddcom681 compare 12 12.0 -> 0 ddcom682 compare 12 12.00 -> 0 ddcom683 compare 12 12.000 -> 0 ddcom684 compare 12 12.0000 -> 0 ddcom685 compare 12 12.00000 -> 0 ddcom686 compare 12 12.000000 -> 0 ddcom687 compare 12 12.0000000 -> 0 ddcom688 compare 12 12.00000000 -> 0 ddcom689 compare 12 12.000000000 -> 0 ddcom690 compare 12 12 -> 0 ddcom691 compare 12.0 12 -> 0 ddcom692 compare 12.00 12 -> 0 ddcom693 compare 12.000 12 -> 0 ddcom694 compare 12.0000 12 -> 0 ddcom695 compare 12.00000 12 -> 0 ddcom696 compare 12.000000 12 -> 0 ddcom697 compare 12.0000000 12 -> 0 ddcom698 compare 12.00000000 12 -> 0 ddcom699 compare 12.000000000 12 -> 0 -- first, second, & last digit ddcom700 compare 1234567890123456 1234567890123455 -> 1 ddcom701 compare 1234567890123456 1234567890123456 -> 0 ddcom702 compare 1234567890123456 1234567890123457 -> -1 ddcom703 compare 1234567890123456 0234567890123456 -> 1 ddcom704 compare 1234567890123456 1234567890123456 -> 0 ddcom705 compare 1234567890123456 2234567890123456 -> -1 ddcom706 compare 1134567890123456 1034567890123456 -> 1 ddcom707 compare 1134567890123456 1134567890123456 -> 0 ddcom708 compare 1134567890123456 1234567890123456 -> -1 -- miscellaneous ddcom721 compare 12345678000 1 -> 1 ddcom722 compare 1 12345678000 -> -1 ddcom723 compare 1234567800 1 -> 1 ddcom724 compare 1 1234567800 -> -1 ddcom725 compare 1234567890 1 -> 1 ddcom726 compare 1 1234567890 -> -1 ddcom727 compare 1234567891 1 -> 1 ddcom728 compare 1 1234567891 -> -1 ddcom729 compare 12345678901 1 -> 1 ddcom730 compare 1 12345678901 -> -1 ddcom731 compare 1234567896 1 -> 1 ddcom732 compare 1 1234567896 -> -1 -- residue cases at lower precision ddcom740 compare 1 0.9999999 -> 1 ddcom741 compare 1 0.999999 -> 1 ddcom742 compare 1 0.99999 -> 1 ddcom743 compare 1 1.0000 -> 0 ddcom744 compare 1 1.00001 -> -1 ddcom745 compare 1 1.000001 -> -1 ddcom746 compare 1 1.0000001 -> -1 ddcom750 compare 0.9999999 1 -> -1 ddcom751 compare 0.999999 1 -> -1 ddcom752 compare 0.99999 1 -> -1 ddcom753 compare 1.0000 1 -> 0 ddcom754 compare 1.00001 1 -> 1 ddcom755 compare 1.000001 1 -> 1 ddcom756 compare 1.0000001 1 -> 1 -- Specials ddcom780 compare Inf -Inf -> 1 ddcom781 compare Inf -1000 -> 1 ddcom782 compare Inf -1 -> 1 ddcom783 compare Inf -0 -> 1 ddcom784 compare Inf 0 -> 1 ddcom785 compare Inf 1 -> 1 ddcom786 compare Inf 1000 -> 1 ddcom787 compare Inf Inf -> 0 ddcom788 compare -1000 Inf -> -1 ddcom789 compare -Inf Inf -> -1 ddcom790 compare -1 Inf -> -1 ddcom791 compare -0 Inf -> -1 ddcom792 compare 0 Inf -> -1 ddcom793 compare 1 Inf -> -1 ddcom794 compare 1000 Inf -> -1 ddcom795 compare Inf Inf -> 0 ddcom800 compare -Inf -Inf -> 0 ddcom801 compare -Inf -1000 -> -1 ddcom802 compare -Inf -1 -> -1 ddcom803 compare -Inf -0 -> -1 ddcom804 compare -Inf 0 -> -1 ddcom805 compare -Inf 1 -> -1 ddcom806 compare -Inf 1000 -> -1 ddcom807 compare -Inf Inf -> -1 ddcom808 compare -Inf -Inf -> 0 ddcom809 compare -1000 -Inf -> 1 ddcom810 compare -1 -Inf -> 1 ddcom811 compare -0 -Inf -> 1 ddcom812 compare 0 -Inf -> 1 ddcom813 compare 1 -Inf -> 1 ddcom814 compare 1000 -Inf -> 1 ddcom815 compare Inf -Inf -> 1 ddcom821 compare NaN -Inf -> NaN ddcom822 compare NaN -1000 -> NaN ddcom823 compare NaN -1 -> NaN ddcom824 compare NaN -0 -> NaN ddcom825 compare NaN 0 -> NaN ddcom826 compare NaN 1 -> NaN ddcom827 compare NaN 1000 -> NaN ddcom828 compare NaN Inf -> NaN ddcom829 compare NaN NaN -> NaN ddcom830 compare -Inf NaN -> NaN ddcom831 compare -1000 NaN -> NaN ddcom832 compare -1 NaN -> NaN ddcom833 compare -0 NaN -> NaN ddcom834 compare 0 NaN -> NaN ddcom835 compare 1 NaN -> NaN ddcom836 compare 1000 NaN -> NaN ddcom837 compare Inf NaN -> NaN ddcom838 compare -NaN -NaN -> -NaN ddcom839 compare +NaN -NaN -> NaN ddcom840 compare -NaN +NaN -> -NaN ddcom841 compare sNaN -Inf -> NaN Invalid_operation ddcom842 compare sNaN -1000 -> NaN Invalid_operation ddcom843 compare sNaN -1 -> NaN Invalid_operation ddcom844 compare sNaN -0 -> NaN Invalid_operation ddcom845 compare sNaN 0 -> NaN Invalid_operation ddcom846 compare sNaN 1 -> NaN Invalid_operation ddcom847 compare sNaN 1000 -> NaN Invalid_operation ddcom848 compare sNaN NaN -> NaN Invalid_operation ddcom849 compare sNaN sNaN -> NaN Invalid_operation ddcom850 compare NaN sNaN -> NaN Invalid_operation ddcom851 compare -Inf sNaN -> NaN Invalid_operation ddcom852 compare -1000 sNaN -> NaN Invalid_operation ddcom853 compare -1 sNaN -> NaN Invalid_operation ddcom854 compare -0 sNaN -> NaN Invalid_operation ddcom855 compare 0 sNaN -> NaN Invalid_operation ddcom856 compare 1 sNaN -> NaN Invalid_operation ddcom857 compare 1000 sNaN -> NaN Invalid_operation ddcom858 compare Inf sNaN -> NaN Invalid_operation ddcom859 compare NaN sNaN -> NaN Invalid_operation -- propagating NaNs ddcom860 compare NaN9 -Inf -> NaN9 ddcom861 compare NaN8 999 -> NaN8 ddcom862 compare NaN77 Inf -> NaN77 ddcom863 compare -NaN67 NaN5 -> -NaN67 ddcom864 compare -Inf -NaN4 -> -NaN4 ddcom865 compare -999 -NaN33 -> -NaN33 ddcom866 compare Inf NaN2 -> NaN2 ddcom867 compare -NaN41 -NaN42 -> -NaN41 ddcom868 compare +NaN41 -NaN42 -> NaN41 ddcom869 compare -NaN41 +NaN42 -> -NaN41 ddcom870 compare +NaN41 +NaN42 -> NaN41 ddcom871 compare -sNaN99 -Inf -> -NaN99 Invalid_operation ddcom872 compare sNaN98 -11 -> NaN98 Invalid_operation ddcom873 compare sNaN97 NaN -> NaN97 Invalid_operation ddcom874 compare sNaN16 sNaN94 -> NaN16 Invalid_operation ddcom875 compare NaN85 sNaN83 -> NaN83 Invalid_operation ddcom876 compare -Inf sNaN92 -> NaN92 Invalid_operation ddcom877 compare 088 sNaN81 -> NaN81 Invalid_operation ddcom878 compare Inf sNaN90 -> NaN90 Invalid_operation ddcom879 compare NaN -sNaN89 -> -NaN89 Invalid_operation -- wide range ddcom880 compare +1.23456789012345E-0 9E+384 -> -1 ddcom881 compare 9E+384 +1.23456789012345E-0 -> 1 ddcom882 compare +0.100 9E-383 -> 1 ddcom883 compare 9E-383 +0.100 -> -1 ddcom885 compare -1.23456789012345E-0 9E+384 -> -1 ddcom886 compare 9E+384 -1.23456789012345E-0 -> 1 ddcom887 compare -0.100 9E-383 -> -1 ddcom888 compare 9E-383 -0.100 -> 1 -- spread zeros ddcom900 compare 0E-383 0 -> 0 ddcom901 compare 0E-383 -0 -> 0 ddcom902 compare -0E-383 0 -> 0 ddcom903 compare -0E-383 -0 -> 0 ddcom904 compare 0E-383 0E+384 -> 0 ddcom905 compare 0E-383 -0E+384 -> 0 ddcom906 compare -0E-383 0E+384 -> 0 ddcom907 compare -0E-383 -0E+384 -> 0 ddcom908 compare 0 0E+384 -> 0 ddcom909 compare 0 -0E+384 -> 0 ddcom910 compare -0 0E+384 -> 0 ddcom911 compare -0 -0E+384 -> 0 ddcom930 compare 0E+384 0 -> 0 ddcom931 compare 0E+384 -0 -> 0 ddcom932 compare -0E+384 0 -> 0 ddcom933 compare -0E+384 -0 -> 0 ddcom934 compare 0E+384 0E-383 -> 0 ddcom935 compare 0E+384 -0E-383 -> 0 ddcom936 compare -0E+384 0E-383 -> 0 ddcom937 compare -0E+384 -0E-383 -> 0 ddcom938 compare 0 0E-383 -> 0 ddcom939 compare 0 -0E-383 -> 0 ddcom940 compare -0 0E-383 -> 0 ddcom941 compare -0 -0E-383 -> 0 -- signs ddcom961 compare 1e+77 1e+11 -> 1 ddcom962 compare 1e+77 -1e+11 -> 1 ddcom963 compare -1e+77 1e+11 -> -1 ddcom964 compare -1e+77 -1e+11 -> -1 ddcom965 compare 1e-77 1e-11 -> -1 ddcom966 compare 1e-77 -1e-11 -> 1 ddcom967 compare -1e-77 1e-11 -> -1 ddcom968 compare -1e-77 -1e-11 -> 1 -- full alignment range, both ways ddcomp1001 compare 1 1.000000000000000 -> 0 ddcomp1002 compare 1 1.00000000000000 -> 0 ddcomp1003 compare 1 1.0000000000000 -> 0 ddcomp1004 compare 1 1.000000000000 -> 0 ddcomp1005 compare 1 1.00000000000 -> 0 ddcomp1006 compare 1 1.0000000000 -> 0 ddcomp1007 compare 1 1.000000000 -> 0 ddcomp1008 compare 1 1.00000000 -> 0 ddcomp1009 compare 1 1.0000000 -> 0 ddcomp1010 compare 1 1.000000 -> 0 ddcomp1011 compare 1 1.00000 -> 0 ddcomp1012 compare 1 1.0000 -> 0 ddcomp1013 compare 1 1.000 -> 0 ddcomp1014 compare 1 1.00 -> 0 ddcomp1015 compare 1 1.0 -> 0 ddcomp1021 compare 1.000000000000000 1 -> 0 ddcomp1022 compare 1.00000000000000 1 -> 0 ddcomp1023 compare 1.0000000000000 1 -> 0 ddcomp1024 compare 1.000000000000 1 -> 0 ddcomp1025 compare 1.00000000000 1 -> 0 ddcomp1026 compare 1.0000000000 1 -> 0 ddcomp1027 compare 1.000000000 1 -> 0 ddcomp1028 compare 1.00000000 1 -> 0 ddcomp1029 compare 1.0000000 1 -> 0 ddcomp1030 compare 1.000000 1 -> 0 ddcomp1031 compare 1.00000 1 -> 0 ddcomp1032 compare 1.0000 1 -> 0 ddcomp1033 compare 1.000 1 -> 0 ddcomp1034 compare 1.00 1 -> 0 ddcomp1035 compare 1.0 1 -> 0 -- check MSD always detected non-zero ddcomp1040 compare 0 0.000000000000000 -> 0 ddcomp1041 compare 0 1.000000000000000 -> -1 ddcomp1042 compare 0 2.000000000000000 -> -1 ddcomp1043 compare 0 3.000000000000000 -> -1 ddcomp1044 compare 0 4.000000000000000 -> -1 ddcomp1045 compare 0 5.000000000000000 -> -1 ddcomp1046 compare 0 6.000000000000000 -> -1 ddcomp1047 compare 0 7.000000000000000 -> -1 ddcomp1048 compare 0 8.000000000000000 -> -1 ddcomp1049 compare 0 9.000000000000000 -> -1 ddcomp1050 compare 0.000000000000000 0 -> 0 ddcomp1051 compare 1.000000000000000 0 -> 1 ddcomp1052 compare 2.000000000000000 0 -> 1 ddcomp1053 compare 3.000000000000000 0 -> 1 ddcomp1054 compare 4.000000000000000 0 -> 1 ddcomp1055 compare 5.000000000000000 0 -> 1 ddcomp1056 compare 6.000000000000000 0 -> 1 ddcomp1057 compare 7.000000000000000 0 -> 1 ddcomp1058 compare 8.000000000000000 0 -> 1 ddcomp1059 compare 9.000000000000000 0 -> 1 -- Null tests ddcom9990 compare 10 # -> NaN Invalid_operation ddcom9991 compare # 10 -> NaN Invalid_operation