17db96d56Sopenharmony_ci------------------------------------------------------------------------ 27db96d56Sopenharmony_ci-- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads -- 37db96d56Sopenharmony_ci-- Copyright (c) IBM Corporation, 2005, 2008. All rights reserved. -- 47db96d56Sopenharmony_ci------------------------------------------------------------------------ 57db96d56Sopenharmony_ci-- Please see the document "General Decimal Arithmetic Testcases" -- 67db96d56Sopenharmony_ci-- at http://www2.hursley.ibm.com/decimal for the description of -- 77db96d56Sopenharmony_ci-- these testcases. -- 87db96d56Sopenharmony_ci-- -- 97db96d56Sopenharmony_ci-- These testcases are experimental ('beta' versions), and they -- 107db96d56Sopenharmony_ci-- may contain errors. They are offered on an as-is basis. In -- 117db96d56Sopenharmony_ci-- particular, achieving the same results as the tests here is not -- 127db96d56Sopenharmony_ci-- a guarantee that an implementation complies with any Standard -- 137db96d56Sopenharmony_ci-- or specification. The tests are not exhaustive. -- 147db96d56Sopenharmony_ci-- -- 157db96d56Sopenharmony_ci-- Please send comments, suggestions, and corrections to the author: -- 167db96d56Sopenharmony_ci-- Mike Cowlishaw, IBM Fellow -- 177db96d56Sopenharmony_ci-- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK -- 187db96d56Sopenharmony_ci-- mfc@uk.ibm.com -- 197db96d56Sopenharmony_ci------------------------------------------------------------------------ 207db96d56Sopenharmony_civersion: 2.59 217db96d56Sopenharmony_ci 227db96d56Sopenharmony_ciextended: 1 237db96d56Sopenharmony_ciclamp: 1 247db96d56Sopenharmony_ciprecision: 34 257db96d56Sopenharmony_cimaxExponent: 6144 267db96d56Sopenharmony_ciminExponent: -6143 277db96d56Sopenharmony_cirounding: half_even 287db96d56Sopenharmony_ci 297db96d56Sopenharmony_ci-- basics 307db96d56Sopenharmony_cidqlogb000 logb 0 -> -Infinity Division_by_zero 317db96d56Sopenharmony_cidqlogb001 logb 1E-6176 -> -6176 327db96d56Sopenharmony_cidqlogb002 logb 1E-6143 -> -6143 337db96d56Sopenharmony_cidqlogb003 logb 0.001 -> -3 347db96d56Sopenharmony_cidqlogb004 logb 0.03 -> -2 357db96d56Sopenharmony_cidqlogb005 logb 1 -> 0 367db96d56Sopenharmony_cidqlogb006 logb 2 -> 0 377db96d56Sopenharmony_cidqlogb007 logb 2.5 -> 0 387db96d56Sopenharmony_cidqlogb008 logb 2.50 -> 0 397db96d56Sopenharmony_cidqlogb009 logb 2.500 -> 0 407db96d56Sopenharmony_cidqlogb010 logb 10 -> 1 417db96d56Sopenharmony_cidqlogb011 logb 70 -> 1 427db96d56Sopenharmony_cidqlogb012 logb 100 -> 2 437db96d56Sopenharmony_cidqlogb013 logb 250 -> 2 447db96d56Sopenharmony_cidqlogb014 logb 9E+6144 -> 6144 457db96d56Sopenharmony_cidqlogb015 logb +Infinity -> Infinity 467db96d56Sopenharmony_ci 477db96d56Sopenharmony_ci-- negatives appear to be treated as positives 487db96d56Sopenharmony_cidqlogb021 logb -0 -> -Infinity Division_by_zero 497db96d56Sopenharmony_cidqlogb022 logb -1E-6176 -> -6176 507db96d56Sopenharmony_cidqlogb023 logb -9E-6143 -> -6143 517db96d56Sopenharmony_cidqlogb024 logb -0.001 -> -3 527db96d56Sopenharmony_cidqlogb025 logb -1 -> 0 537db96d56Sopenharmony_cidqlogb026 logb -2 -> 0 547db96d56Sopenharmony_cidqlogb027 logb -10 -> 1 557db96d56Sopenharmony_cidqlogb028 logb -70 -> 1 567db96d56Sopenharmony_cidqlogb029 logb -100 -> 2 577db96d56Sopenharmony_cidqlogb030 logb -9E+6144 -> 6144 587db96d56Sopenharmony_cidqlogb031 logb -Infinity -> Infinity 597db96d56Sopenharmony_ci 607db96d56Sopenharmony_ci-- zeros 617db96d56Sopenharmony_cidqlogb111 logb 0 -> -Infinity Division_by_zero 627db96d56Sopenharmony_cidqlogb112 logb -0 -> -Infinity Division_by_zero 637db96d56Sopenharmony_cidqlogb113 logb 0E+4 -> -Infinity Division_by_zero 647db96d56Sopenharmony_cidqlogb114 logb -0E+4 -> -Infinity Division_by_zero 657db96d56Sopenharmony_cidqlogb115 logb 0.0000 -> -Infinity Division_by_zero 667db96d56Sopenharmony_cidqlogb116 logb -0.0000 -> -Infinity Division_by_zero 677db96d56Sopenharmony_cidqlogb117 logb 0E-141 -> -Infinity Division_by_zero 687db96d56Sopenharmony_cidqlogb118 logb -0E-141 -> -Infinity Division_by_zero 697db96d56Sopenharmony_ci 707db96d56Sopenharmony_ci-- full coefficients, alternating bits 717db96d56Sopenharmony_cidqlogb121 logb 268268268 -> 8 727db96d56Sopenharmony_cidqlogb122 logb -268268268 -> 8 737db96d56Sopenharmony_cidqlogb123 logb 134134134 -> 8 747db96d56Sopenharmony_cidqlogb124 logb -134134134 -> 8 757db96d56Sopenharmony_ci 767db96d56Sopenharmony_ci-- Nmax, Nmin, Ntiny 777db96d56Sopenharmony_cidqlogb131 logb 9.999999999999999999999999999999999E+6144 -> 6144 787db96d56Sopenharmony_cidqlogb132 logb 1E-6143 -> -6143 797db96d56Sopenharmony_cidqlogb133 logb 1.000000000000000000000000000000000E-6143 -> -6143 807db96d56Sopenharmony_cidqlogb134 logb 1E-6176 -> -6176 817db96d56Sopenharmony_ci 827db96d56Sopenharmony_cidqlogb135 logb -1E-6176 -> -6176 837db96d56Sopenharmony_cidqlogb136 logb -1.000000000000000000000000000000000E-6143 -> -6143 847db96d56Sopenharmony_cidqlogb137 logb -1E-6143 -> -6143 857db96d56Sopenharmony_cidqlogb1614 logb -9.999999999999999999999999999999999E+6144 -> 6144 867db96d56Sopenharmony_ci 877db96d56Sopenharmony_ci-- ones 887db96d56Sopenharmony_cidqlogb0061 logb 1 -> 0 897db96d56Sopenharmony_cidqlogb0062 logb 1.0 -> 0 907db96d56Sopenharmony_cidqlogb0063 logb 1.000000000000000 -> 0 917db96d56Sopenharmony_ci 927db96d56Sopenharmony_ci-- notable cases -- exact powers of 10 937db96d56Sopenharmony_cidqlogb1100 logb 1 -> 0 947db96d56Sopenharmony_cidqlogb1101 logb 10 -> 1 957db96d56Sopenharmony_cidqlogb1102 logb 100 -> 2 967db96d56Sopenharmony_cidqlogb1103 logb 1000 -> 3 977db96d56Sopenharmony_cidqlogb1104 logb 10000 -> 4 987db96d56Sopenharmony_cidqlogb1105 logb 100000 -> 5 997db96d56Sopenharmony_cidqlogb1106 logb 1000000 -> 6 1007db96d56Sopenharmony_cidqlogb1107 logb 10000000 -> 7 1017db96d56Sopenharmony_cidqlogb1108 logb 100000000 -> 8 1027db96d56Sopenharmony_cidqlogb1109 logb 1000000000 -> 9 1037db96d56Sopenharmony_cidqlogb1110 logb 10000000000 -> 10 1047db96d56Sopenharmony_cidqlogb1111 logb 100000000000 -> 11 1057db96d56Sopenharmony_cidqlogb1112 logb 1000000000000 -> 12 1067db96d56Sopenharmony_cidqlogb1113 logb 0.00000000001 -> -11 1077db96d56Sopenharmony_cidqlogb1114 logb 0.0000000001 -> -10 1087db96d56Sopenharmony_cidqlogb1115 logb 0.000000001 -> -9 1097db96d56Sopenharmony_cidqlogb1116 logb 0.00000001 -> -8 1107db96d56Sopenharmony_cidqlogb1117 logb 0.0000001 -> -7 1117db96d56Sopenharmony_cidqlogb1118 logb 0.000001 -> -6 1127db96d56Sopenharmony_cidqlogb1119 logb 0.00001 -> -5 1137db96d56Sopenharmony_cidqlogb1120 logb 0.0001 -> -4 1147db96d56Sopenharmony_cidqlogb1121 logb 0.001 -> -3 1157db96d56Sopenharmony_cidqlogb1122 logb 0.01 -> -2 1167db96d56Sopenharmony_cidqlogb1123 logb 0.1 -> -1 1177db96d56Sopenharmony_cidqlogb1124 logb 1E-99 -> -99 1187db96d56Sopenharmony_cidqlogb1125 logb 1E-100 -> -100 1197db96d56Sopenharmony_cidqlogb1127 logb 1E-299 -> -299 1207db96d56Sopenharmony_cidqlogb1126 logb 1E-6143 -> -6143 1217db96d56Sopenharmony_ci 1227db96d56Sopenharmony_ci-- suggestions from Ilan Nehama 1237db96d56Sopenharmony_cidqlogb1400 logb 10E-3 -> -2 1247db96d56Sopenharmony_cidqlogb1401 logb 10E-2 -> -1 1257db96d56Sopenharmony_cidqlogb1402 logb 100E-2 -> 0 1267db96d56Sopenharmony_cidqlogb1403 logb 1000E-2 -> 1 1277db96d56Sopenharmony_cidqlogb1404 logb 10000E-2 -> 2 1287db96d56Sopenharmony_cidqlogb1405 logb 10E-1 -> 0 1297db96d56Sopenharmony_cidqlogb1406 logb 100E-1 -> 1 1307db96d56Sopenharmony_cidqlogb1407 logb 1000E-1 -> 2 1317db96d56Sopenharmony_cidqlogb1408 logb 10000E-1 -> 3 1327db96d56Sopenharmony_cidqlogb1409 logb 10E0 -> 1 1337db96d56Sopenharmony_cidqlogb1410 logb 100E0 -> 2 1347db96d56Sopenharmony_cidqlogb1411 logb 1000E0 -> 3 1357db96d56Sopenharmony_cidqlogb1412 logb 10000E0 -> 4 1367db96d56Sopenharmony_cidqlogb1413 logb 10E1 -> 2 1377db96d56Sopenharmony_cidqlogb1414 logb 100E1 -> 3 1387db96d56Sopenharmony_cidqlogb1415 logb 1000E1 -> 4 1397db96d56Sopenharmony_cidqlogb1416 logb 10000E1 -> 5 1407db96d56Sopenharmony_cidqlogb1417 logb 10E2 -> 3 1417db96d56Sopenharmony_cidqlogb1418 logb 100E2 -> 4 1427db96d56Sopenharmony_cidqlogb1419 logb 1000E2 -> 5 1437db96d56Sopenharmony_cidqlogb1420 logb 10000E2 -> 6 1447db96d56Sopenharmony_ci 1457db96d56Sopenharmony_ci-- special values 1467db96d56Sopenharmony_cidqlogb820 logb Infinity -> Infinity 1477db96d56Sopenharmony_cidqlogb821 logb 0 -> -Infinity Division_by_zero 1487db96d56Sopenharmony_cidqlogb822 logb NaN -> NaN 1497db96d56Sopenharmony_cidqlogb823 logb sNaN -> NaN Invalid_operation 1507db96d56Sopenharmony_ci-- propagating NaNs 1517db96d56Sopenharmony_cidqlogb824 logb sNaN123 -> NaN123 Invalid_operation 1527db96d56Sopenharmony_cidqlogb825 logb -sNaN321 -> -NaN321 Invalid_operation 1537db96d56Sopenharmony_cidqlogb826 logb NaN456 -> NaN456 1547db96d56Sopenharmony_cidqlogb827 logb -NaN654 -> -NaN654 1557db96d56Sopenharmony_cidqlogb828 logb NaN1 -> NaN1 1567db96d56Sopenharmony_ci 1577db96d56Sopenharmony_ci-- Null test 1587db96d56Sopenharmony_cidqlogb900 logb # -> NaN Invalid_operation 1597db96d56Sopenharmony_ci 1607db96d56Sopenharmony_ci 161