| /* | |
| * Copyright (c) 2003, 2024, 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 /test/lib | |
| * @build jdk.test.lib.RandomFactory | |
| * @build Tests | |
| * @build FdlibmTranslit | |
| * @build CubeRootTests | |
| * @run main CubeRootTests | |
| * @summary Tests specifically for StrictMath.cbrt | |
| */ | |
| import jdk.test.lib.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... args) { | |
| 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, expected); | |
| failures+=Tests.test("StrictMath.cbrt(double)", minus_input, | |
| StrictMath::cbrt, 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}, | |
| // Empirical worst-case points in other libraries with | |
| // larger worst-case errors than FDLIBM | |
| { 0x1.7a337e1ba1ec2p-257, 0x1.6f59116ea884dp-86}, | |
| { 0x0.7ffffffffffffp-1022, 0x1.fffffffffffffp-342}, | |
| {-0x1.00ddafe7d9deep-885, -0x1.0049d002f249fp-295}, | |
| { 0x1.fed1fe9f1122dp+11, 0x1.ff9b410e1f8b4p3}, | |
| {-0x1.55cd285f321f6p-64, -0x1.bf7a40bced214p-22}, | |
| { 0x1.fffb101d89c1dp-332, 0x1.965e9bf0fb7fbp-111}, | |
| }; | |
| 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.cbrt against transliteration port of cbrt. | |
| */ | |
| 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 test | |
| // elements overflowing to infinity if the starting value is | |
| // near Double.MAX_VALUE. | |
| 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; | |
| } | |
| } |