/* * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 4347132 8136799 * @key randomness * @library /lib/testlibrary/ * @build jdk.testlibrary.RandomFactory * @build Tests * @build FdlibmTranslit * @build CubeRootTests * @run main CubeRootTests * @summary Tests specifically for StrictMath.cbrt * @author Joseph D. Darcy */ import jdk.testlibrary.RandomFactory; /** * The tests in ../Math/CubeRootTests.java test properties that should * hold for any cube root implementation, including the FDLIBM-based * one required for StrictMath.cbrt. Therefore, the test cases in * ../Math/CubeRootTests.java are run against both the Math and * StrictMath versions of cube root. The role of this test is to * verify that the FDLIBM cbrt algorithm is being used by running * golden file tests on values that may vary from one conforming cube * root implementation to another. */ public class CubeRootTests { private CubeRootTests(){} public static void main(String [] argv) { int failures = 0; failures += testCubeRoot(); failures += testAgainstTranslit(); if (failures > 0) { System.err.println("Testing the cube root incurred " + failures + " failures."); throw new RuntimeException(); } } static int testCubeRootCase(double input, double expected) { int failures=0; double minus_input = -input; double minus_expected = -expected; failures+=Tests.test("StrictMath.cbrt(double)", input, StrictMath.cbrt(input), expected); failures+=Tests.test("StrictMath.cbrt(double)", minus_input, StrictMath.cbrt(minus_input), minus_expected); return failures; } static int testCubeRoot() { int failures = 0; double [][] testCases = { {0x1.ffffffffffffep-766, 0x1.fffffffffffffp-256}, {0x1.ffffffffffffep-763, 0x1.fffffffffffffp-255}, {0x1.ffffffffffffep-760, 0x1.fffffffffffffp-254}, {0x1.ffffffffffffep-757, 0x1.fffffffffffffp-253}, {0x1.ffffffffffffep-754, 0x1.fffffffffffffp-252}, {0x1.ffffffffffffep-751, 0x1.fffffffffffffp-251}, {0x1.ffffffffffffep-748, 0x1.fffffffffffffp-250}, {0x1.ffffffffffffep-745, 0x1.fffffffffffffp-249}, {0x1.ffffffffffffep-742, 0x1.fffffffffffffp-248}, {0x1.ffffffffffffep-739, 0x1.fffffffffffffp-247}, {0x1.ffffffffffffep-1006, 0x1.fffffffffffffp-336}, {0x1.ffffffffffffep-736, 0x1.fffffffffffffp-246}, {0x1.ffffffffffffep-733, 0x1.fffffffffffffp-245}, {0x1.ffffffffffffep-730, 0x1.fffffffffffffp-244}, {0x1.ffffffffffffep-727, 0x1.fffffffffffffp-243}, {0x1.ffffffffffffep-724, 0x1.fffffffffffffp-242}, {0x1.ffffffffffffep-721, 0x1.fffffffffffffp-241}, {0x1.ffffffffffffep-718, 0x1.fffffffffffffp-240}, {0x1.ffffffffffffep-715, 0x1.fffffffffffffp-239}, {0x1.ffffffffffffep-712, 0x1.fffffffffffffp-238}, {0x1.ffffffffffffep-709, 0x1.fffffffffffffp-237}, {0x1.ffffffffffffep-706, 0x1.fffffffffffffp-236}, {0x1.ffffffffffffep-703, 0x1.fffffffffffffp-235}, {0x1.ffffffffffffep-700, 0x1.fffffffffffffp-234}, {0x1.ffffffffffffep-697, 0x1.fffffffffffffp-233}, {0x1.ffffffffffffep-694, 0x1.fffffffffffffp-232}, {0x1.ffffffffffffep-691, 0x1.fffffffffffffp-231}, {0x1.ffffffffffffep-1003, 0x1.fffffffffffffp-335}, {0x1.ffffffffffffep-688, 0x1.fffffffffffffp-230}, {0x1.ffffffffffffep-685, 0x1.fffffffffffffp-229}, {0x1.ffffffffffffep-682, 0x1.fffffffffffffp-228}, {0x1.ffffffffffffep-679, 0x1.fffffffffffffp-227}, {0x1.ffffffffffffep-676, 0x1.fffffffffffffp-226}, {0x1.ffffffffffffep-673, 0x1.fffffffffffffp-225}, {0x1.ffffffffffffep-670, 0x1.fffffffffffffp-224}, {0x1.ffffffffffffep-667, 0x1.fffffffffffffp-223}, {0x1.ffffffffffffep-664, 0x1.fffffffffffffp-222}, {0x1.ffffffffffffep-661, 0x1.fffffffffffffp-221}, {0x1.ffffffffffffep-658, 0x1.fffffffffffffp-220}, {0x1.ffffffffffffep-655, 0x1.fffffffffffffp-219}, {0x1.ffffffffffffep-652, 0x1.fffffffffffffp-218}, {0x1.ffffffffffffep-649, 0x1.fffffffffffffp-217}, {0x1.ffffffffffffep-646, 0x1.fffffffffffffp-216}, {0x1.ffffffffffffep-643, 0x1.fffffffffffffp-215}, {0x1.ffffffffffffep-1000, 0x1.fffffffffffffp-334}, {0x1.ffffffffffffep-640, 0x1.fffffffffffffp-214}, {0x1.ffffffffffffep-637, 0x1.fffffffffffffp-213}, {0x1.ffffffffffffep-634, 0x1.fffffffffffffp-212}, {0x1.ffffffffffffep-631, 0x1.fffffffffffffp-211}, {0x1.ffffffffffffep-628, 0x1.fffffffffffffp-210}, {0x1.ffffffffffffep-625, 0x1.fffffffffffffp-209}, {0x1.ffffffffffffep-622, 0x1.fffffffffffffp-208}, {0x1.ffffffffffffep-619, 0x1.fffffffffffffp-207}, {0x1.ffffffffffffep-616, 0x1.fffffffffffffp-206}, {0x1.ffffffffffffep-613, 0x1.fffffffffffffp-205}, {0x1.ffffffffffffep-610, 0x1.fffffffffffffp-204}, {0x1.ffffffffffffep-607, 0x1.fffffffffffffp-203}, {0x1.ffffffffffffep-604, 0x1.fffffffffffffp-202}, {0x1.ffffffffffffep-601, 0x1.fffffffffffffp-201}, {0x1.ffffffffffffep-598, 0x1.fffffffffffffp-200}, {0x1.ffffffffffffep-595, 0x1.fffffffffffffp-199}, {0x1.ffffffffffffep-997, 0x1.fffffffffffffp-333}, {0x1.ffffffffffffep-592, 0x1.fffffffffffffp-198}, {0x1.ffffffffffffep-589, 0x1.fffffffffffffp-197}, {0x1.ffffffffffffep-586, 0x1.fffffffffffffp-196}, {0x1.ffffffffffffep-583, 0x1.fffffffffffffp-195}, {0x1.ffffffffffffep-580, 0x1.fffffffffffffp-194}, {0x1.ffffffffffffep-577, 0x1.fffffffffffffp-193}, {0x1.ffffffffffffep-574, 0x1.fffffffffffffp-192}, {0x1.ffffffffffffep-571, 0x1.fffffffffffffp-191}, {0x1.ffffffffffffep-568, 0x1.fffffffffffffp-190}, {0x1.ffffffffffffep-565, 0x1.fffffffffffffp-189}, {0x1.ffffffffffffep-562, 0x1.fffffffffffffp-188}, {0x1.ffffffffffffep-559, 0x1.fffffffffffffp-187}, {0x1.ffffffffffffep-556, 0x1.fffffffffffffp-186}, {0x1.ffffffffffffep-553, 0x1.fffffffffffffp-185}, {0x1.ffffffffffffep-550, 0x1.fffffffffffffp-184}, {0x1.ffffffffffffep-547, 0x1.fffffffffffffp-183}, {0x1.ffffffffffffep-994, 0x1.fffffffffffffp-332}, {0x1.ffffffffffffep-544, 0x1.fffffffffffffp-182}, {0x1.ffffffffffffep-541, 0x1.fffffffffffffp-181}, {0x1.ffffffffffffep-538, 0x1.fffffffffffffp-180}, {0x1.ffffffffffffep-535, 0x1.fffffffffffffp-179}, {0x1.ffffffffffffep-532, 0x1.fffffffffffffp-178}, {0x1.ffffffffffffep-529, 0x1.fffffffffffffp-177}, {0x0.00000000001fp-1022, 0x1.fa9c313858568p-356}, {0x1.ffffffffffffep-526, 0x1.fffffffffffffp-176}, {0x1.ffffffffffffep-523, 0x1.fffffffffffffp-175}, {0x1.ffffffffffffep-520, 0x1.fffffffffffffp-174}, {0x1.ffffffffffffep-517, 0x1.fffffffffffffp-173}, {0x0.00000000001fdp-1022, 0x1.feff7f94ea34dp-356}, {0x1.ffffffffffffep-514, 0x1.fffffffffffffp-172}, {0x0.00000001fffe7p-1022, 0x1.ffff7aaa87f1bp-352}, {0x0.00000001fffffp-1022, 0x1.fffffaaaaa9c7p-352}, {0x0.00001ffffff4p-1022, 0x1.ffffffcp-348}, {0x0.00001ffffffffp-1022, 0x1.ffffffffaaaabp-348}, {0x0.01ffffffffffcp-1022, 0x1.ffffffffffeabp-344}, {0x1.ffffffffffffep-511, 0x1.fffffffffffffp-171}, {0x1.ffffffffffffep-508, 0x1.fffffffffffffp-170}, {0x1.ffffffffffffep-505, 0x1.fffffffffffffp-169}, {0x1.ffffffffffffep-502, 0x1.fffffffffffffp-168}, {0x1.ffffffffffffep-499, 0x1.fffffffffffffp-167}, {0x1.ffffffffffffep-991, 0x1.fffffffffffffp-331}, {0x1.ffffffffffffep-496, 0x1.fffffffffffffp-166}, {0x1.ffffffffffffep-493, 0x1.fffffffffffffp-165}, {0x1.ffffffffffffep-490, 0x1.fffffffffffffp-164}, {0x1.ffffffffffffep-487, 0x1.fffffffffffffp-163}, {0x1.ffffffffffffep-484, 0x1.fffffffffffffp-162}, {0x1.ffffffffffffep-481, 0x1.fffffffffffffp-161}, {0x1.ffffffffffffep-478, 0x1.fffffffffffffp-160}, {0x1.ffffffffffffep-475, 0x1.fffffffffffffp-159}, {0x1.ffffffffffffep-472, 0x1.fffffffffffffp-158}, {0x1.ffffffffffffep-469, 0x1.fffffffffffffp-157}, {0x1.ffffffffffffep-466, 0x1.fffffffffffffp-156}, {0x1.ffffffffffffep-463, 0x1.fffffffffffffp-155}, {0x1.ffffffffffffep-460, 0x1.fffffffffffffp-154}, {0x1.ffffffffffffep-457, 0x1.fffffffffffffp-153}, {0x1.ffffffffffffep-454, 0x1.fffffffffffffp-152}, {0x1.ffffffffffffep-451, 0x1.fffffffffffffp-151}, {0x1.ffffffffffffep-988, 0x1.fffffffffffffp-330}, {0x1.ffffffffffffep-448, 0x1.fffffffffffffp-150}, {0x1.ffffffffffffep-445, 0x1.fffffffffffffp-149}, {0x1.ffffffffffffep-442, 0x1.fffffffffffffp-148}, {0x1.ffffffffffffep-439, 0x1.fffffffffffffp-147}, {0x1.ffffffffffffep-436, 0x1.fffffffffffffp-146}, {0x1.ffffffffffffep-433, 0x1.fffffffffffffp-145}, {0x1.ffffffffffffep-430, 0x1.fffffffffffffp-144}, {0x1.ffffffffffffep-427, 0x1.fffffffffffffp-143}, {0x1.ffffffffffffep-424, 0x1.fffffffffffffp-142}, {0x1.ffffffffffffep-421, 0x1.fffffffffffffp-141}, {0x1.ffffffffffffep-418, 0x1.fffffffffffffp-140}, {0x1.ffffffffffffep-415, 0x1.fffffffffffffp-139}, {0x1.ffffffffffffep-412, 0x1.fffffffffffffp-138}, {0x1.ffffffffffffep-409, 0x1.fffffffffffffp-137}, {0x1.ffffffffffffep-406, 0x1.fffffffffffffp-136}, {0x1.ffffffffffffep-403, 0x1.fffffffffffffp-135}, {0x1.ffffffffffffep-985, 0x1.fffffffffffffp-329}, {0x1.ffffffffffffep-400, 0x1.fffffffffffffp-134}, {0x1.ffffffffffffep-397, 0x1.fffffffffffffp-133}, {0x1.ffffffffffffep-394, 0x1.fffffffffffffp-132}, {0x1.ffffffffffffep-391, 0x1.fffffffffffffp-131}, {0x1.ffffffffffffep-388, 0x1.fffffffffffffp-130}, {0x1.ffffffffffffep-385, 0x1.fffffffffffffp-129}, {0x1.ffffffffffffep-382, 0x1.fffffffffffffp-128}, {0x1.ffffffffffffep-379, 0x1.fffffffffffffp-127}, {0x1.ffffffffffffep-376, 0x1.fffffffffffffp-126}, {0x1.ffffffffffffep-373, 0x1.fffffffffffffp-125}, {0x1.ffffffffffffep-370, 0x1.fffffffffffffp-124}, {0x1.ffffffffffffep-367, 0x1.fffffffffffffp-123}, {0x1.ffffffffffffep-364, 0x1.fffffffffffffp-122}, {0x1.ffffffffffffep-361, 0x1.fffffffffffffp-121}, {0x1.ffffffffffffep-358, 0x1.fffffffffffffp-120}, {0x1.ffffffffffffep-355, 0x1.fffffffffffffp-119}, {0x1.ffffffffffffep-982, 0x1.fffffffffffffp-328}, {0x1.ffffffffffffep-352, 0x1.fffffffffffffp-118}, {0x1.ffffffffffffep-349, 0x1.fffffffffffffp-117}, {0x1.ffffffffffffep-346, 0x1.fffffffffffffp-116}, {0x1.ffffffffffffep-343, 0x1.fffffffffffffp-115}, {0x1.ffffffffffffep-340, 0x1.fffffffffffffp-114}, {0x1.ffffffffffffep-337, 0x1.fffffffffffffp-113}, {0x1.ffffffffffffep-334, 0x1.fffffffffffffp-112}, {0x1.ffffffffffffep-331, 0x1.fffffffffffffp-111}, {0x1.ffffffffffffep-328, 0x1.fffffffffffffp-110}, {0x1.ffffffffffffep-325, 0x1.fffffffffffffp-109}, {0x1.ffffffffffffep-322, 0x1.fffffffffffffp-108}, {0x1.ffffffffffffep-319, 0x1.fffffffffffffp-107}, {0x1.ffffffffffffep-316, 0x1.fffffffffffffp-106}, {0x1.ffffffffffffep-313, 0x1.fffffffffffffp-105}, {0x1.ffffffffffffep-310, 0x1.fffffffffffffp-104}, {0x1.ffffffffffffep-307, 0x1.fffffffffffffp-103}, {0x1.ffffffffffffep-979, 0x1.fffffffffffffp-327}, {0x1.ffffffffffffep-304, 0x1.fffffffffffffp-102}, {0x1.ffffffffffffep-301, 0x1.fffffffffffffp-101}, {0x1.ffffffffffffep-298, 0x1.fffffffffffffp-100}, {0x1.ffffffffffffep-295, 0x1.fffffffffffffp-99}, {0x1.ffffffffffffep-292, 0x1.fffffffffffffp-98}, {0x1.ffffffffffffep-289, 0x1.fffffffffffffp-97}, {0x1.ffffffffffffep-286, 0x1.fffffffffffffp-96}, {0x1.ffffffffffffep-283, 0x1.fffffffffffffp-95}, {0x1.ffffffffffffep-280, 0x1.fffffffffffffp-94}, {0x1.ffffffffffffep-277, 0x1.fffffffffffffp-93}, {0x1.ffffffffffffep-274, 0x1.fffffffffffffp-92}, {0x1.ffffffffffffep-271, 0x1.fffffffffffffp-91}, {0x1.ffffffffffffep-268, 0x1.fffffffffffffp-90}, {0x1.ffffffffffffep-265, 0x1.fffffffffffffp-89}, {0x1.ffffffffffffep-262, 0x1.fffffffffffffp-88}, {0x1.ffffffffffffep-259, 0x1.fffffffffffffp-87}, {0x1.ffffffffffffep-1021, 0x1.fffffffffffffp-341}, {0x1.ffffffffffffep-976, 0x1.fffffffffffffp-326}, {0x1.ffffffffffffep-256, 0x1.fffffffffffffp-86}, {0x1.ffffffffffffep-253, 0x1.fffffffffffffp-85}, {0x1.ffffffffffffep-250, 0x1.fffffffffffffp-84}, {0x1.ffffffffffffep-247, 0x1.fffffffffffffp-83}, {0x1.ffffffffffffep-244, 0x1.fffffffffffffp-82}, {0x1.ffffffffffffep-241, 0x1.fffffffffffffp-81}, {0x1.ffffffffffffep-238, 0x1.fffffffffffffp-80}, {0x1.ffffffffffffep-235, 0x1.fffffffffffffp-79}, {0x1.ffffffffffffep-232, 0x1.fffffffffffffp-78}, {0x1.ffffffffffffep-229, 0x1.fffffffffffffp-77}, {0x1.ffffffffffffep-226, 0x1.fffffffffffffp-76}, {0x1.ffffffffffffep-223, 0x1.fffffffffffffp-75}, {0x1.ffffffffffffep-220, 0x1.fffffffffffffp-74}, {0x1.ffffffffffffep-217, 0x1.fffffffffffffp-73}, {0x1.ffffffffffffep-214, 0x1.fffffffffffffp-72}, {0x1.ffffffffffffep-211, 0x1.fffffffffffffp-71}, {0x1.ffffffffffffep-973, 0x1.fffffffffffffp-325}, {0x1.ffffffffffffep-208, 0x1.fffffffffffffp-70}, {0x1.ffffffffffffep-205, 0x1.fffffffffffffp-69}, {0x1.ffffffffffffep-202, 0x1.fffffffffffffp-68}, {0x1.ffffffffffffep-199, 0x1.fffffffffffffp-67}, {0x1.ffffffffffffep-196, 0x1.fffffffffffffp-66}, {0x1.ffffffffffffep-193, 0x1.fffffffffffffp-65}, {0x1.ffffffffffffep-190, 0x1.fffffffffffffp-64}, {0x1.ffffffffffffep-187, 0x1.fffffffffffffp-63}, {0x1.ffffffffffffep-184, 0x1.fffffffffffffp-62}, {0x1.ffffffffffffep-181, 0x1.fffffffffffffp-61}, {0x1.ffffffffffffep-178, 0x1.fffffffffffffp-60}, {0x1.ffffffffffffep-175, 0x1.fffffffffffffp-59}, {0x1.ffffffffffffep-172, 0x1.fffffffffffffp-58}, {0x1.ffffffffffffep-169, 0x1.fffffffffffffp-57}, {0x1.ffffffffffffep-166, 0x1.fffffffffffffp-56}, {0x1.ffffffffffffep-163, 0x1.fffffffffffffp-55}, {0x1.ffffffffffffep-970, 0x1.fffffffffffffp-324}, {0x1.ffffffffffffep-160, 0x1.fffffffffffffp-54}, {0x1.ffffffffffffep-157, 0x1.fffffffffffffp-53}, {0x1.ffffffffffffep-154, 0x1.fffffffffffffp-52}, {0x1.ffffffffffffep-151, 0x1.fffffffffffffp-51}, {0x1.ffffffffffffep-148, 0x1.fffffffffffffp-50}, {0x1.ffffffffffffep-145, 0x1.fffffffffffffp-49}, {0x1.ffffffffffffep-142, 0x1.fffffffffffffp-48}, {0x1.ffffffffffffep-139, 0x1.fffffffffffffp-47}, {0x1.ffffffffffffep-136, 0x1.fffffffffffffp-46}, {0x1.ffffffffffffep-133, 0x1.fffffffffffffp-45}, {0x1.ffffffffffffep-130, 0x1.fffffffffffffp-44}, {0x1.ffffffffffffep-127, 0x1.fffffffffffffp-43}, {0x1.ffffffffffffep-124, 0x1.fffffffffffffp-42}, {0x1.ffffffffffffep-121, 0x1.fffffffffffffp-41}, {0x1.ffffffffffffep-118, 0x1.fffffffffffffp-40}, {0x1.ffffffffffffep-115, 0x1.fffffffffffffp-39}, {0x1.ffffffffffffep-967, 0x1.fffffffffffffp-323}, {0x1.ffffffffffffep-112, 0x1.fffffffffffffp-38}, {0x1.ffffffffffffep-109, 0x1.fffffffffffffp-37}, {0x1.ffffffffffffep-106, 0x1.fffffffffffffp-36}, {0x1.ffffffffffffep-103, 0x1.fffffffffffffp-35}, {0x1.ffffffffffffep-100, 0x1.fffffffffffffp-34}, {0x1.ffffffffffffep-97, 0x1.fffffffffffffp-33}, {0x1.ffffffffffffep-94, 0x1.fffffffffffffp-32}, {0x1.ffffffffffffep-91, 0x1.fffffffffffffp-31}, {0x1.ffffffffffffep-88, 0x1.fffffffffffffp-30}, {0x1.ffffffffffffep-85, 0x1.fffffffffffffp-29}, {0x1.ffffffffffffep-82, 0x1.fffffffffffffp-28}, {0x1.ffffffffffffep-79, 0x1.fffffffffffffp-27}, {0x1.ffffffffffffep-76, 0x1.fffffffffffffp-26}, {0x1.ffffffffffffep-73, 0x1.fffffffffffffp-25}, {0x1.ffffffffffffep-70, 0x1.fffffffffffffp-24}, {0x1.ffffffffffffep-67, 0x1.fffffffffffffp-23}, {0x1.ffffffffffffep-964, 0x1.fffffffffffffp-322}, {0x1.ffffffffffffep-64, 0x1.fffffffffffffp-22}, {0x1.ffffffffffffep-61, 0x1.fffffffffffffp-21}, {0x1.ffffffffffffep-58, 0x1.fffffffffffffp-20}, {0x1.ffffffffffffep-55, 0x1.fffffffffffffp-19}, {0x1.ffffffffffffep-52, 0x1.fffffffffffffp-18}, {0x1.ffffffffffffep-49, 0x1.fffffffffffffp-17}, {0x1.ffffffffffffep-46, 0x1.fffffffffffffp-16}, {0x1.ffffffffffffep-43, 0x1.fffffffffffffp-15}, {0x1.ffffffffffffep-40, 0x1.fffffffffffffp-14}, {0x1.ffffffffffffep-37, 0x1.fffffffffffffp-13}, {0x1.ffffffffffffep-34, 0x1.fffffffffffffp-12}, {0x1.ffffffffffffep-31, 0x1.fffffffffffffp-11}, {0x1.ffffffffffffep-28, 0x1.fffffffffffffp-10}, {0x1.ffffffffffffep-25, 0x1.fffffffffffffp-9}, {0x1.ffffffffffffep-22, 0x1.fffffffffffffp-8}, {0x0.000000000003ep-1022, 0x1.fa9c313858568p-357}, {0x1.ffffffffffffep-19, 0x1.fffffffffffffp-7}, {0x1.ffffffffffffep-961, 0x1.fffffffffffffp-321}, {0x1.ffffffffffffep-16, 0x1.fffffffffffffp-6}, {0x1.ffffffffffffep-13, 0x1.fffffffffffffp-5}, {0x1.ffffffffffffep-10, 0x1.fffffffffffffp-4}, {0x1.ffffffffffffep-7, 0x1.fffffffffffffp-3}, {0x0.000000000003fp-1022, 0x1.fd51bf2069fe6p-357}, {0x1.ffffffffffffep-4, 0x1.fffffffffffffp-2}, {0x1.ffffffffffffep-1, 0x1.fffffffffffffp-1}, {0x0.000000003fffcp-1022, 0x1.ffff55551c71bp-353}, {0x0.000003fffffe8p-1022, 0x1.ffffffcp-349}, {0x0.000003ffffffcp-1022, 0x1.fffffff555555p-349}, {0x0.003fffffffff9p-1022, 0x1.fffffffffed55p-345}, {0x1.ffffffffffffep2, 0x1.fffffffffffffp0}, {0x1.bp4, 0x1.8p1}, {0x1.ffffffffffffep5, 0x1.fffffffffffffp1}, {0x1.f3ffffffffff4p6, 0x1.3fffffffffffep2}, {0x1.f3ffffffffffcp6, 0x1.3ffffffffffffp2}, {0x1.bp7, 0x1.8p2}, {0x1.56ffffffffffep8, 0x1.bffffffffffffp2}, {0x1.ffffffffffffep8, 0x1.fffffffffffffp2}, {0x1.6c8p9, 0x1.2p3}, {0x1.f3ffffffffff4p9, 0x1.3fffffffffffep3}, {0x1.f3ffffffffffcp9, 0x1.3ffffffffffffp3}, {0x1.4cbfffffffffcp10, 0x1.5fffffffffffep3}, {0x1.4cbfffffffffep10, 0x1.5ffffffffffffp3}, {0x1.bp10, 0x1.8p3}, {0x1.129ffffffffa4p11, 0x1.9ffffffffffd1p3}, {0x1.129fffffffffep11, 0x1.9ffffffffffffp3}, {0x1.56ffffffffffep11, 0x1.bffffffffffffp3}, {0x1.a5ep11, 0x1.ep3}, {0x1.ffffffffffffep11, 0x1.fffffffffffffp3}, {0x1.330fffffffc1ep12, 0x1.0fffffffffedbp4}, {0x1.331p12, 0x1.1p4}, {0x1.6c8p12, 0x1.2p4}, {0x1.acafffffffffap12, 0x1.2ffffffffffffp4}, {0x1.acafffffffffep12, 0x1.2ffffffffffffp4}, {0x1.ffffffffffffep-958, 0x1.fffffffffffffp-320}, {0x1.ffffffffffffep-955, 0x1.fffffffffffffp-319}, {0x1.ffffffffffffep-952, 0x1.fffffffffffffp-318}, {0x1.ffffffffffffep-949, 0x1.fffffffffffffp-317}, {0x1.ffffffffffffep-946, 0x1.fffffffffffffp-316}, {0x1.ffffffffffffep-943, 0x1.fffffffffffffp-315}, {0x1.ffffffffffffep-940, 0x1.fffffffffffffp-314}, {0x1.ffffffffffffep-937, 0x1.fffffffffffffp-313}, {0x1.ffffffffffffep-934, 0x1.fffffffffffffp-312}, {0x1.ffffffffffffep-931, 0x1.fffffffffffffp-311}, {0x1.ffffffffffffep-1018, 0x1.fffffffffffffp-340}, {0x1.ffffffffffffep-928, 0x1.fffffffffffffp-310}, {0x1.ffffffffffffep-925, 0x1.fffffffffffffp-309}, {0x1.ffffffffffffep-922, 0x1.fffffffffffffp-308}, {0x1.ffffffffffffep-919, 0x1.fffffffffffffp-307}, {0x1.ffffffffffffep-916, 0x1.fffffffffffffp-306}, {0x1.ffffffffffffep-913, 0x1.fffffffffffffp-305}, {0x1.ffffffffffffep-910, 0x1.fffffffffffffp-304}, {0x1.ffffffffffffep-907, 0x1.fffffffffffffp-303}, {0x1.ffffffffffffep-904, 0x1.fffffffffffffp-302}, {0x0.0000000000007p-1022, 0x1.e9b5dba58189ep-358}, {0x1.ffffffffffffep-901, 0x1.fffffffffffffp-301}, {0x1.ffffffffffffep-898, 0x1.fffffffffffffp-300}, {0x0.0000000007ffp-1022, 0x1.ffeaa9c70ca31p-354}, {0x0.0000000007ffep-1022, 0x1.fffd5551c7149p-354}, {0x0.0000007fffffdp-1022, 0x1.ffffffcp-350}, {0x0.0000007fffffep-1022, 0x1.ffffffd555555p-350}, {0x0.0007ffffffffap-1022, 0x1.fffffffff8p-346}, {0x0.7ffffffffffffp-1022, 0x1.fffffffffffffp-342}, {0x1.ffffffffffffep-895, 0x1.fffffffffffffp-299}, {0x1.ffffffffffffep-892, 0x1.fffffffffffffp-298}, {0x1.ffffffffffffep-889, 0x1.fffffffffffffp-297}, {0x1.ffffffffffffep-886, 0x1.fffffffffffffp-296}, {0x1.ffffffffffffep-883, 0x1.fffffffffffffp-295}, {0x1.ffffffffffffep-1015, 0x1.fffffffffffffp-339}, {0x1.ffffffffffffep-880, 0x1.fffffffffffffp-294}, {0x1.ffffffffffffep-877, 0x1.fffffffffffffp-293}, {0x1.ffffffffffffep-874, 0x1.fffffffffffffp-292}, {0x1.ffffffffffffep-871, 0x1.fffffffffffffp-291}, {0x1.ffffffffffffep-868, 0x1.fffffffffffffp-290}, {0x1.ffffffffffffep-865, 0x1.fffffffffffffp-289}, {0x1.ffffffffffffep-862, 0x1.fffffffffffffp-288}, {0x1.ffffffffffffep-859, 0x1.fffffffffffffp-287}, {0x1.ffffffffffffep-856, 0x1.fffffffffffffp-286}, {0x1.ffffffffffffep-853, 0x1.fffffffffffffp-285}, {0x1.ffffffffffffep-850, 0x1.fffffffffffffp-284}, {0x1.ffffffffffffep-847, 0x1.fffffffffffffp-283}, {0x1.ffffffffffffep-844, 0x1.fffffffffffffp-282}, {0x1.ffffffffffffep-841, 0x1.fffffffffffffp-281}, {0x1.ffffffffffffep-838, 0x1.fffffffffffffp-280}, {0x1.ffffffffffffep-835, 0x1.fffffffffffffp-279}, {0x1.ffffffffffffep-1012, 0x1.fffffffffffffp-338}, {0x1.ffffffffffffep-832, 0x1.fffffffffffffp-278}, {0x1.ffffffffffffep-829, 0x1.fffffffffffffp-277}, {0x1.ffffffffffffep-826, 0x1.fffffffffffffp-276}, {0x1.ffffffffffffep-823, 0x1.fffffffffffffp-275}, {0x1.ffffffffffffep-820, 0x1.fffffffffffffp-274}, {0x1.ffffffffffffep-817, 0x1.fffffffffffffp-273}, {0x1.ffffffffffffep-814, 0x1.fffffffffffffp-272}, {0x1.ffffffffffffep-811, 0x1.fffffffffffffp-271}, {0x1.ffffffffffffep-808, 0x1.fffffffffffffp-270}, {0x1.ffffffffffffep-805, 0x1.fffffffffffffp-269}, {0x1.ffffffffffffep-802, 0x1.fffffffffffffp-268}, {0x1.ffffffffffffep-799, 0x1.fffffffffffffp-267}, {0x1.ffffffffffffep-796, 0x1.fffffffffffffp-266}, {0x1.ffffffffffffep-793, 0x1.fffffffffffffp-265}, {0x1.ffffffffffffep-790, 0x1.fffffffffffffp-264}, {0x1.ffffffffffffep-787, 0x1.fffffffffffffp-263}, {0x1.ffffffffffffep-1009, 0x1.fffffffffffffp-337}, {0x1.ffffffffffffep-784, 0x1.fffffffffffffp-262}, {0x1.ffffffffffffep-781, 0x1.fffffffffffffp-261}, {0x1.ffffffffffffep-778, 0x1.fffffffffffffp-260}, {0x1.ffffffffffffep-775, 0x1.fffffffffffffp-259}, {0x1.ffffffffffffep-772, 0x1.fffffffffffffp-258}, {0x1.ffffffffffffep-769, 0x1.fffffffffffffp-257}, {0x0.0000000000ffep-1022, 0x1.ffeaa9c70ca31p-355}, {0x0.0000000000fffp-1022, 0x1.fff5551c6fcd6p-355}, {0x0.0000000ffff86p-1022, 0x1.ffffaeaa9dbf1p-351}, {0x0.0000000ffffffp-1022, 0x1.ffffff5555552p-351}, {0x0.0000ffffffap-1022, 0x1.ffffffcp-347}, {0x0.0000ffffffff8p-1022, 0x1.ffffffffaaaabp-347}, {0x0.0fffffffffffbp-1022, 0x1.fffffffffffcbp-343} }; for(double[] testCase: testCases) failures+=testCubeRootCase(testCase[0], testCase[1]); return failures; } // Initialize shared random number generator private static java.util.Random random = RandomFactory.getRandom(); /** * Test StrictMath.hypot against transliteration port of hypot. */ private static int testAgainstTranslit() { int failures = 0; double x; // Test just above subnormal threshold... x = Double.MIN_NORMAL; failures += testRange(x, Math.ulp(x), 1000); // ... and just below subnormal threshold ... x = Math.nextDown(Double.MIN_NORMAL); failures += testRange(x, -Math.ulp(x), 1000); // ... and near zero. failures += testRange(0.0, Double.MIN_VALUE, 1000); x = Tests.createRandomDouble(random); // Make the increment twice the ulp value in case the random // value is near an exponent threshold. // Don't worry about x or y overflowing to infinity if their // exponent is MAX_EXPONENT. failures += testRange(x, 2.0 * Math.ulp(x), 1000); return failures; } private static int testRange(double start, double increment, int count) { int failures = 0; double x = start; for (int i = 0; i < count; i++, x += increment) { failures += testCubeRootCase(x, FdlibmTranslit.Cbrt.compute(x)); } return failures; } }