1/* 2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 4347132 8136799 27 * @key randomness 28 * @library /test/lib 29 * @build jdk.test.lib.RandomFactory 30 * @build Tests 31 * @build FdlibmTranslit 32 * @build CubeRootTests 33 * @run main CubeRootTests 34 * @summary Tests specifically for StrictMath.cbrt 35 * @author Joseph D. Darcy 36 */ 37 38import jdk.test.lib.RandomFactory; 39 40/** 41 * The tests in ../Math/CubeRootTests.java test properties that should 42 * hold for any cube root implementation, including the FDLIBM-based 43 * one required for StrictMath.cbrt. Therefore, the test cases in 44 * ../Math/CubeRootTests.java are run against both the Math and 45 * StrictMath versions of cube root. The role of this test is to 46 * verify that the FDLIBM cbrt algorithm is being used by running 47 * golden file tests on values that may vary from one conforming cube 48 * root implementation to another. 49 */ 50 51public class CubeRootTests { 52 private CubeRootTests(){} 53 54 public static void main(String [] argv) { 55 int failures = 0; 56 57 failures += testCubeRoot(); 58 failures += testAgainstTranslit(); 59 60 if (failures > 0) { 61 System.err.println("Testing the cube root incurred " 62 + failures + " failures."); 63 throw new RuntimeException(); 64 } 65 } 66 67 static int testCubeRootCase(double input, double expected) { 68 int failures=0; 69 70 double minus_input = -input; 71 double minus_expected = -expected; 72 73 failures+=Tests.test("StrictMath.cbrt(double)", input, 74 StrictMath.cbrt(input), expected); 75 failures+=Tests.test("StrictMath.cbrt(double)", minus_input, 76 StrictMath.cbrt(minus_input), minus_expected); 77 return failures; 78 } 79 80 static int testCubeRoot() { 81 int failures = 0; 82 double [][] testCases = { 83 {0x1.ffffffffffffep-766, 0x1.fffffffffffffp-256}, 84 {0x1.ffffffffffffep-763, 0x1.fffffffffffffp-255}, 85 {0x1.ffffffffffffep-760, 0x1.fffffffffffffp-254}, 86 {0x1.ffffffffffffep-757, 0x1.fffffffffffffp-253}, 87 {0x1.ffffffffffffep-754, 0x1.fffffffffffffp-252}, 88 {0x1.ffffffffffffep-751, 0x1.fffffffffffffp-251}, 89 {0x1.ffffffffffffep-748, 0x1.fffffffffffffp-250}, 90 {0x1.ffffffffffffep-745, 0x1.fffffffffffffp-249}, 91 {0x1.ffffffffffffep-742, 0x1.fffffffffffffp-248}, 92 {0x1.ffffffffffffep-739, 0x1.fffffffffffffp-247}, 93 {0x1.ffffffffffffep-1006, 0x1.fffffffffffffp-336}, 94 {0x1.ffffffffffffep-736, 0x1.fffffffffffffp-246}, 95 {0x1.ffffffffffffep-733, 0x1.fffffffffffffp-245}, 96 {0x1.ffffffffffffep-730, 0x1.fffffffffffffp-244}, 97 {0x1.ffffffffffffep-727, 0x1.fffffffffffffp-243}, 98 {0x1.ffffffffffffep-724, 0x1.fffffffffffffp-242}, 99 {0x1.ffffffffffffep-721, 0x1.fffffffffffffp-241}, 100 {0x1.ffffffffffffep-718, 0x1.fffffffffffffp-240}, 101 {0x1.ffffffffffffep-715, 0x1.fffffffffffffp-239}, 102 {0x1.ffffffffffffep-712, 0x1.fffffffffffffp-238}, 103 {0x1.ffffffffffffep-709, 0x1.fffffffffffffp-237}, 104 {0x1.ffffffffffffep-706, 0x1.fffffffffffffp-236}, 105 {0x1.ffffffffffffep-703, 0x1.fffffffffffffp-235}, 106 {0x1.ffffffffffffep-700, 0x1.fffffffffffffp-234}, 107 {0x1.ffffffffffffep-697, 0x1.fffffffffffffp-233}, 108 {0x1.ffffffffffffep-694, 0x1.fffffffffffffp-232}, 109 {0x1.ffffffffffffep-691, 0x1.fffffffffffffp-231}, 110 {0x1.ffffffffffffep-1003, 0x1.fffffffffffffp-335}, 111 {0x1.ffffffffffffep-688, 0x1.fffffffffffffp-230}, 112 {0x1.ffffffffffffep-685, 0x1.fffffffffffffp-229}, 113 {0x1.ffffffffffffep-682, 0x1.fffffffffffffp-228}, 114 {0x1.ffffffffffffep-679, 0x1.fffffffffffffp-227}, 115 {0x1.ffffffffffffep-676, 0x1.fffffffffffffp-226}, 116 {0x1.ffffffffffffep-673, 0x1.fffffffffffffp-225}, 117 {0x1.ffffffffffffep-670, 0x1.fffffffffffffp-224}, 118 {0x1.ffffffffffffep-667, 0x1.fffffffffffffp-223}, 119 {0x1.ffffffffffffep-664, 0x1.fffffffffffffp-222}, 120 {0x1.ffffffffffffep-661, 0x1.fffffffffffffp-221}, 121 {0x1.ffffffffffffep-658, 0x1.fffffffffffffp-220}, 122 {0x1.ffffffffffffep-655, 0x1.fffffffffffffp-219}, 123 {0x1.ffffffffffffep-652, 0x1.fffffffffffffp-218}, 124 {0x1.ffffffffffffep-649, 0x1.fffffffffffffp-217}, 125 {0x1.ffffffffffffep-646, 0x1.fffffffffffffp-216}, 126 {0x1.ffffffffffffep-643, 0x1.fffffffffffffp-215}, 127 {0x1.ffffffffffffep-1000, 0x1.fffffffffffffp-334}, 128 {0x1.ffffffffffffep-640, 0x1.fffffffffffffp-214}, 129 {0x1.ffffffffffffep-637, 0x1.fffffffffffffp-213}, 130 {0x1.ffffffffffffep-634, 0x1.fffffffffffffp-212}, 131 {0x1.ffffffffffffep-631, 0x1.fffffffffffffp-211}, 132 {0x1.ffffffffffffep-628, 0x1.fffffffffffffp-210}, 133 {0x1.ffffffffffffep-625, 0x1.fffffffffffffp-209}, 134 {0x1.ffffffffffffep-622, 0x1.fffffffffffffp-208}, 135 {0x1.ffffffffffffep-619, 0x1.fffffffffffffp-207}, 136 {0x1.ffffffffffffep-616, 0x1.fffffffffffffp-206}, 137 {0x1.ffffffffffffep-613, 0x1.fffffffffffffp-205}, 138 {0x1.ffffffffffffep-610, 0x1.fffffffffffffp-204}, 139 {0x1.ffffffffffffep-607, 0x1.fffffffffffffp-203}, 140 {0x1.ffffffffffffep-604, 0x1.fffffffffffffp-202}, 141 {0x1.ffffffffffffep-601, 0x1.fffffffffffffp-201}, 142 {0x1.ffffffffffffep-598, 0x1.fffffffffffffp-200}, 143 {0x1.ffffffffffffep-595, 0x1.fffffffffffffp-199}, 144 {0x1.ffffffffffffep-997, 0x1.fffffffffffffp-333}, 145 {0x1.ffffffffffffep-592, 0x1.fffffffffffffp-198}, 146 {0x1.ffffffffffffep-589, 0x1.fffffffffffffp-197}, 147 {0x1.ffffffffffffep-586, 0x1.fffffffffffffp-196}, 148 {0x1.ffffffffffffep-583, 0x1.fffffffffffffp-195}, 149 {0x1.ffffffffffffep-580, 0x1.fffffffffffffp-194}, 150 {0x1.ffffffffffffep-577, 0x1.fffffffffffffp-193}, 151 {0x1.ffffffffffffep-574, 0x1.fffffffffffffp-192}, 152 {0x1.ffffffffffffep-571, 0x1.fffffffffffffp-191}, 153 {0x1.ffffffffffffep-568, 0x1.fffffffffffffp-190}, 154 {0x1.ffffffffffffep-565, 0x1.fffffffffffffp-189}, 155 {0x1.ffffffffffffep-562, 0x1.fffffffffffffp-188}, 156 {0x1.ffffffffffffep-559, 0x1.fffffffffffffp-187}, 157 {0x1.ffffffffffffep-556, 0x1.fffffffffffffp-186}, 158 {0x1.ffffffffffffep-553, 0x1.fffffffffffffp-185}, 159 {0x1.ffffffffffffep-550, 0x1.fffffffffffffp-184}, 160 {0x1.ffffffffffffep-547, 0x1.fffffffffffffp-183}, 161 {0x1.ffffffffffffep-994, 0x1.fffffffffffffp-332}, 162 {0x1.ffffffffffffep-544, 0x1.fffffffffffffp-182}, 163 {0x1.ffffffffffffep-541, 0x1.fffffffffffffp-181}, 164 {0x1.ffffffffffffep-538, 0x1.fffffffffffffp-180}, 165 {0x1.ffffffffffffep-535, 0x1.fffffffffffffp-179}, 166 {0x1.ffffffffffffep-532, 0x1.fffffffffffffp-178}, 167 {0x1.ffffffffffffep-529, 0x1.fffffffffffffp-177}, 168 {0x0.00000000001fp-1022, 0x1.fa9c313858568p-356}, 169 {0x1.ffffffffffffep-526, 0x1.fffffffffffffp-176}, 170 {0x1.ffffffffffffep-523, 0x1.fffffffffffffp-175}, 171 {0x1.ffffffffffffep-520, 0x1.fffffffffffffp-174}, 172 {0x1.ffffffffffffep-517, 0x1.fffffffffffffp-173}, 173 {0x0.00000000001fdp-1022, 0x1.feff7f94ea34dp-356}, 174 {0x1.ffffffffffffep-514, 0x1.fffffffffffffp-172}, 175 {0x0.00000001fffe7p-1022, 0x1.ffff7aaa87f1bp-352}, 176 {0x0.00000001fffffp-1022, 0x1.fffffaaaaa9c7p-352}, 177 {0x0.00001ffffff4p-1022, 0x1.ffffffcp-348}, 178 {0x0.00001ffffffffp-1022, 0x1.ffffffffaaaabp-348}, 179 {0x0.01ffffffffffcp-1022, 0x1.ffffffffffeabp-344}, 180 {0x1.ffffffffffffep-511, 0x1.fffffffffffffp-171}, 181 {0x1.ffffffffffffep-508, 0x1.fffffffffffffp-170}, 182 {0x1.ffffffffffffep-505, 0x1.fffffffffffffp-169}, 183 {0x1.ffffffffffffep-502, 0x1.fffffffffffffp-168}, 184 {0x1.ffffffffffffep-499, 0x1.fffffffffffffp-167}, 185 {0x1.ffffffffffffep-991, 0x1.fffffffffffffp-331}, 186 {0x1.ffffffffffffep-496, 0x1.fffffffffffffp-166}, 187 {0x1.ffffffffffffep-493, 0x1.fffffffffffffp-165}, 188 {0x1.ffffffffffffep-490, 0x1.fffffffffffffp-164}, 189 {0x1.ffffffffffffep-487, 0x1.fffffffffffffp-163}, 190 {0x1.ffffffffffffep-484, 0x1.fffffffffffffp-162}, 191 {0x1.ffffffffffffep-481, 0x1.fffffffffffffp-161}, 192 {0x1.ffffffffffffep-478, 0x1.fffffffffffffp-160}, 193 {0x1.ffffffffffffep-475, 0x1.fffffffffffffp-159}, 194 {0x1.ffffffffffffep-472, 0x1.fffffffffffffp-158}, 195 {0x1.ffffffffffffep-469, 0x1.fffffffffffffp-157}, 196 {0x1.ffffffffffffep-466, 0x1.fffffffffffffp-156}, 197 {0x1.ffffffffffffep-463, 0x1.fffffffffffffp-155}, 198 {0x1.ffffffffffffep-460, 0x1.fffffffffffffp-154}, 199 {0x1.ffffffffffffep-457, 0x1.fffffffffffffp-153}, 200 {0x1.ffffffffffffep-454, 0x1.fffffffffffffp-152}, 201 {0x1.ffffffffffffep-451, 0x1.fffffffffffffp-151}, 202 {0x1.ffffffffffffep-988, 0x1.fffffffffffffp-330}, 203 {0x1.ffffffffffffep-448, 0x1.fffffffffffffp-150}, 204 {0x1.ffffffffffffep-445, 0x1.fffffffffffffp-149}, 205 {0x1.ffffffffffffep-442, 0x1.fffffffffffffp-148}, 206 {0x1.ffffffffffffep-439, 0x1.fffffffffffffp-147}, 207 {0x1.ffffffffffffep-436, 0x1.fffffffffffffp-146}, 208 {0x1.ffffffffffffep-433, 0x1.fffffffffffffp-145}, 209 {0x1.ffffffffffffep-430, 0x1.fffffffffffffp-144}, 210 {0x1.ffffffffffffep-427, 0x1.fffffffffffffp-143}, 211 {0x1.ffffffffffffep-424, 0x1.fffffffffffffp-142}, 212 {0x1.ffffffffffffep-421, 0x1.fffffffffffffp-141}, 213 {0x1.ffffffffffffep-418, 0x1.fffffffffffffp-140}, 214 {0x1.ffffffffffffep-415, 0x1.fffffffffffffp-139}, 215 {0x1.ffffffffffffep-412, 0x1.fffffffffffffp-138}, 216 {0x1.ffffffffffffep-409, 0x1.fffffffffffffp-137}, 217 {0x1.ffffffffffffep-406, 0x1.fffffffffffffp-136}, 218 {0x1.ffffffffffffep-403, 0x1.fffffffffffffp-135}, 219 {0x1.ffffffffffffep-985, 0x1.fffffffffffffp-329}, 220 {0x1.ffffffffffffep-400, 0x1.fffffffffffffp-134}, 221 {0x1.ffffffffffffep-397, 0x1.fffffffffffffp-133}, 222 {0x1.ffffffffffffep-394, 0x1.fffffffffffffp-132}, 223 {0x1.ffffffffffffep-391, 0x1.fffffffffffffp-131}, 224 {0x1.ffffffffffffep-388, 0x1.fffffffffffffp-130}, 225 {0x1.ffffffffffffep-385, 0x1.fffffffffffffp-129}, 226 {0x1.ffffffffffffep-382, 0x1.fffffffffffffp-128}, 227 {0x1.ffffffffffffep-379, 0x1.fffffffffffffp-127}, 228 {0x1.ffffffffffffep-376, 0x1.fffffffffffffp-126}, 229 {0x1.ffffffffffffep-373, 0x1.fffffffffffffp-125}, 230 {0x1.ffffffffffffep-370, 0x1.fffffffffffffp-124}, 231 {0x1.ffffffffffffep-367, 0x1.fffffffffffffp-123}, 232 {0x1.ffffffffffffep-364, 0x1.fffffffffffffp-122}, 233 {0x1.ffffffffffffep-361, 0x1.fffffffffffffp-121}, 234 {0x1.ffffffffffffep-358, 0x1.fffffffffffffp-120}, 235 {0x1.ffffffffffffep-355, 0x1.fffffffffffffp-119}, 236 {0x1.ffffffffffffep-982, 0x1.fffffffffffffp-328}, 237 {0x1.ffffffffffffep-352, 0x1.fffffffffffffp-118}, 238 {0x1.ffffffffffffep-349, 0x1.fffffffffffffp-117}, 239 {0x1.ffffffffffffep-346, 0x1.fffffffffffffp-116}, 240 {0x1.ffffffffffffep-343, 0x1.fffffffffffffp-115}, 241 {0x1.ffffffffffffep-340, 0x1.fffffffffffffp-114}, 242 {0x1.ffffffffffffep-337, 0x1.fffffffffffffp-113}, 243 {0x1.ffffffffffffep-334, 0x1.fffffffffffffp-112}, 244 {0x1.ffffffffffffep-331, 0x1.fffffffffffffp-111}, 245 {0x1.ffffffffffffep-328, 0x1.fffffffffffffp-110}, 246 {0x1.ffffffffffffep-325, 0x1.fffffffffffffp-109}, 247 {0x1.ffffffffffffep-322, 0x1.fffffffffffffp-108}, 248 {0x1.ffffffffffffep-319, 0x1.fffffffffffffp-107}, 249 {0x1.ffffffffffffep-316, 0x1.fffffffffffffp-106}, 250 {0x1.ffffffffffffep-313, 0x1.fffffffffffffp-105}, 251 {0x1.ffffffffffffep-310, 0x1.fffffffffffffp-104}, 252 {0x1.ffffffffffffep-307, 0x1.fffffffffffffp-103}, 253 {0x1.ffffffffffffep-979, 0x1.fffffffffffffp-327}, 254 {0x1.ffffffffffffep-304, 0x1.fffffffffffffp-102}, 255 {0x1.ffffffffffffep-301, 0x1.fffffffffffffp-101}, 256 {0x1.ffffffffffffep-298, 0x1.fffffffffffffp-100}, 257 {0x1.ffffffffffffep-295, 0x1.fffffffffffffp-99}, 258 {0x1.ffffffffffffep-292, 0x1.fffffffffffffp-98}, 259 {0x1.ffffffffffffep-289, 0x1.fffffffffffffp-97}, 260 {0x1.ffffffffffffep-286, 0x1.fffffffffffffp-96}, 261 {0x1.ffffffffffffep-283, 0x1.fffffffffffffp-95}, 262 {0x1.ffffffffffffep-280, 0x1.fffffffffffffp-94}, 263 {0x1.ffffffffffffep-277, 0x1.fffffffffffffp-93}, 264 {0x1.ffffffffffffep-274, 0x1.fffffffffffffp-92}, 265 {0x1.ffffffffffffep-271, 0x1.fffffffffffffp-91}, 266 {0x1.ffffffffffffep-268, 0x1.fffffffffffffp-90}, 267 {0x1.ffffffffffffep-265, 0x1.fffffffffffffp-89}, 268 {0x1.ffffffffffffep-262, 0x1.fffffffffffffp-88}, 269 {0x1.ffffffffffffep-259, 0x1.fffffffffffffp-87}, 270 {0x1.ffffffffffffep-1021, 0x1.fffffffffffffp-341}, 271 {0x1.ffffffffffffep-976, 0x1.fffffffffffffp-326}, 272 {0x1.ffffffffffffep-256, 0x1.fffffffffffffp-86}, 273 {0x1.ffffffffffffep-253, 0x1.fffffffffffffp-85}, 274 {0x1.ffffffffffffep-250, 0x1.fffffffffffffp-84}, 275 {0x1.ffffffffffffep-247, 0x1.fffffffffffffp-83}, 276 {0x1.ffffffffffffep-244, 0x1.fffffffffffffp-82}, 277 {0x1.ffffffffffffep-241, 0x1.fffffffffffffp-81}, 278 {0x1.ffffffffffffep-238, 0x1.fffffffffffffp-80}, 279 {0x1.ffffffffffffep-235, 0x1.fffffffffffffp-79}, 280 {0x1.ffffffffffffep-232, 0x1.fffffffffffffp-78}, 281 {0x1.ffffffffffffep-229, 0x1.fffffffffffffp-77}, 282 {0x1.ffffffffffffep-226, 0x1.fffffffffffffp-76}, 283 {0x1.ffffffffffffep-223, 0x1.fffffffffffffp-75}, 284 {0x1.ffffffffffffep-220, 0x1.fffffffffffffp-74}, 285 {0x1.ffffffffffffep-217, 0x1.fffffffffffffp-73}, 286 {0x1.ffffffffffffep-214, 0x1.fffffffffffffp-72}, 287 {0x1.ffffffffffffep-211, 0x1.fffffffffffffp-71}, 288 {0x1.ffffffffffffep-973, 0x1.fffffffffffffp-325}, 289 {0x1.ffffffffffffep-208, 0x1.fffffffffffffp-70}, 290 {0x1.ffffffffffffep-205, 0x1.fffffffffffffp-69}, 291 {0x1.ffffffffffffep-202, 0x1.fffffffffffffp-68}, 292 {0x1.ffffffffffffep-199, 0x1.fffffffffffffp-67}, 293 {0x1.ffffffffffffep-196, 0x1.fffffffffffffp-66}, 294 {0x1.ffffffffffffep-193, 0x1.fffffffffffffp-65}, 295 {0x1.ffffffffffffep-190, 0x1.fffffffffffffp-64}, 296 {0x1.ffffffffffffep-187, 0x1.fffffffffffffp-63}, 297 {0x1.ffffffffffffep-184, 0x1.fffffffffffffp-62}, 298 {0x1.ffffffffffffep-181, 0x1.fffffffffffffp-61}, 299 {0x1.ffffffffffffep-178, 0x1.fffffffffffffp-60}, 300 {0x1.ffffffffffffep-175, 0x1.fffffffffffffp-59}, 301 {0x1.ffffffffffffep-172, 0x1.fffffffffffffp-58}, 302 {0x1.ffffffffffffep-169, 0x1.fffffffffffffp-57}, 303 {0x1.ffffffffffffep-166, 0x1.fffffffffffffp-56}, 304 {0x1.ffffffffffffep-163, 0x1.fffffffffffffp-55}, 305 {0x1.ffffffffffffep-970, 0x1.fffffffffffffp-324}, 306 {0x1.ffffffffffffep-160, 0x1.fffffffffffffp-54}, 307 {0x1.ffffffffffffep-157, 0x1.fffffffffffffp-53}, 308 {0x1.ffffffffffffep-154, 0x1.fffffffffffffp-52}, 309 {0x1.ffffffffffffep-151, 0x1.fffffffffffffp-51}, 310 {0x1.ffffffffffffep-148, 0x1.fffffffffffffp-50}, 311 {0x1.ffffffffffffep-145, 0x1.fffffffffffffp-49}, 312 {0x1.ffffffffffffep-142, 0x1.fffffffffffffp-48}, 313 {0x1.ffffffffffffep-139, 0x1.fffffffffffffp-47}, 314 {0x1.ffffffffffffep-136, 0x1.fffffffffffffp-46}, 315 {0x1.ffffffffffffep-133, 0x1.fffffffffffffp-45}, 316 {0x1.ffffffffffffep-130, 0x1.fffffffffffffp-44}, 317 {0x1.ffffffffffffep-127, 0x1.fffffffffffffp-43}, 318 {0x1.ffffffffffffep-124, 0x1.fffffffffffffp-42}, 319 {0x1.ffffffffffffep-121, 0x1.fffffffffffffp-41}, 320 {0x1.ffffffffffffep-118, 0x1.fffffffffffffp-40}, 321 {0x1.ffffffffffffep-115, 0x1.fffffffffffffp-39}, 322 {0x1.ffffffffffffep-967, 0x1.fffffffffffffp-323}, 323 {0x1.ffffffffffffep-112, 0x1.fffffffffffffp-38}, 324 {0x1.ffffffffffffep-109, 0x1.fffffffffffffp-37}, 325 {0x1.ffffffffffffep-106, 0x1.fffffffffffffp-36}, 326 {0x1.ffffffffffffep-103, 0x1.fffffffffffffp-35}, 327 {0x1.ffffffffffffep-100, 0x1.fffffffffffffp-34}, 328 {0x1.ffffffffffffep-97, 0x1.fffffffffffffp-33}, 329 {0x1.ffffffffffffep-94, 0x1.fffffffffffffp-32}, 330 {0x1.ffffffffffffep-91, 0x1.fffffffffffffp-31}, 331 {0x1.ffffffffffffep-88, 0x1.fffffffffffffp-30}, 332 {0x1.ffffffffffffep-85, 0x1.fffffffffffffp-29}, 333 {0x1.ffffffffffffep-82, 0x1.fffffffffffffp-28}, 334 {0x1.ffffffffffffep-79, 0x1.fffffffffffffp-27}, 335 {0x1.ffffffffffffep-76, 0x1.fffffffffffffp-26}, 336 {0x1.ffffffffffffep-73, 0x1.fffffffffffffp-25}, 337 {0x1.ffffffffffffep-70, 0x1.fffffffffffffp-24}, 338 {0x1.ffffffffffffep-67, 0x1.fffffffffffffp-23}, 339 {0x1.ffffffffffffep-964, 0x1.fffffffffffffp-322}, 340 {0x1.ffffffffffffep-64, 0x1.fffffffffffffp-22}, 341 {0x1.ffffffffffffep-61, 0x1.fffffffffffffp-21}, 342 {0x1.ffffffffffffep-58, 0x1.fffffffffffffp-20}, 343 {0x1.ffffffffffffep-55, 0x1.fffffffffffffp-19}, 344 {0x1.ffffffffffffep-52, 0x1.fffffffffffffp-18}, 345 {0x1.ffffffffffffep-49, 0x1.fffffffffffffp-17}, 346 {0x1.ffffffffffffep-46, 0x1.fffffffffffffp-16}, 347 {0x1.ffffffffffffep-43, 0x1.fffffffffffffp-15}, 348 {0x1.ffffffffffffep-40, 0x1.fffffffffffffp-14}, 349 {0x1.ffffffffffffep-37, 0x1.fffffffffffffp-13}, 350 {0x1.ffffffffffffep-34, 0x1.fffffffffffffp-12}, 351 {0x1.ffffffffffffep-31, 0x1.fffffffffffffp-11}, 352 {0x1.ffffffffffffep-28, 0x1.fffffffffffffp-10}, 353 {0x1.ffffffffffffep-25, 0x1.fffffffffffffp-9}, 354 {0x1.ffffffffffffep-22, 0x1.fffffffffffffp-8}, 355 {0x0.000000000003ep-1022, 0x1.fa9c313858568p-357}, 356 {0x1.ffffffffffffep-19, 0x1.fffffffffffffp-7}, 357 {0x1.ffffffffffffep-961, 0x1.fffffffffffffp-321}, 358 {0x1.ffffffffffffep-16, 0x1.fffffffffffffp-6}, 359 {0x1.ffffffffffffep-13, 0x1.fffffffffffffp-5}, 360 {0x1.ffffffffffffep-10, 0x1.fffffffffffffp-4}, 361 {0x1.ffffffffffffep-7, 0x1.fffffffffffffp-3}, 362 {0x0.000000000003fp-1022, 0x1.fd51bf2069fe6p-357}, 363 {0x1.ffffffffffffep-4, 0x1.fffffffffffffp-2}, 364 {0x1.ffffffffffffep-1, 0x1.fffffffffffffp-1}, 365 {0x0.000000003fffcp-1022, 0x1.ffff55551c71bp-353}, 366 {0x0.000003fffffe8p-1022, 0x1.ffffffcp-349}, 367 {0x0.000003ffffffcp-1022, 0x1.fffffff555555p-349}, 368 {0x0.003fffffffff9p-1022, 0x1.fffffffffed55p-345}, 369 {0x1.ffffffffffffep2, 0x1.fffffffffffffp0}, 370 {0x1.bp4, 0x1.8p1}, 371 {0x1.ffffffffffffep5, 0x1.fffffffffffffp1}, 372 {0x1.f3ffffffffff4p6, 0x1.3fffffffffffep2}, 373 {0x1.f3ffffffffffcp6, 0x1.3ffffffffffffp2}, 374 {0x1.bp7, 0x1.8p2}, 375 {0x1.56ffffffffffep8, 0x1.bffffffffffffp2}, 376 {0x1.ffffffffffffep8, 0x1.fffffffffffffp2}, 377 {0x1.6c8p9, 0x1.2p3}, 378 {0x1.f3ffffffffff4p9, 0x1.3fffffffffffep3}, 379 {0x1.f3ffffffffffcp9, 0x1.3ffffffffffffp3}, 380 {0x1.4cbfffffffffcp10, 0x1.5fffffffffffep3}, 381 {0x1.4cbfffffffffep10, 0x1.5ffffffffffffp3}, 382 {0x1.bp10, 0x1.8p3}, 383 {0x1.129ffffffffa4p11, 0x1.9ffffffffffd1p3}, 384 {0x1.129fffffffffep11, 0x1.9ffffffffffffp3}, 385 {0x1.56ffffffffffep11, 0x1.bffffffffffffp3}, 386 {0x1.a5ep11, 0x1.ep3}, 387 {0x1.ffffffffffffep11, 0x1.fffffffffffffp3}, 388 {0x1.330fffffffc1ep12, 0x1.0fffffffffedbp4}, 389 {0x1.331p12, 0x1.1p4}, 390 {0x1.6c8p12, 0x1.2p4}, 391 {0x1.acafffffffffap12, 0x1.2ffffffffffffp4}, 392 {0x1.acafffffffffep12, 0x1.2ffffffffffffp4}, 393 {0x1.ffffffffffffep-958, 0x1.fffffffffffffp-320}, 394 {0x1.ffffffffffffep-955, 0x1.fffffffffffffp-319}, 395 {0x1.ffffffffffffep-952, 0x1.fffffffffffffp-318}, 396 {0x1.ffffffffffffep-949, 0x1.fffffffffffffp-317}, 397 {0x1.ffffffffffffep-946, 0x1.fffffffffffffp-316}, 398 {0x1.ffffffffffffep-943, 0x1.fffffffffffffp-315}, 399 {0x1.ffffffffffffep-940, 0x1.fffffffffffffp-314}, 400 {0x1.ffffffffffffep-937, 0x1.fffffffffffffp-313}, 401 {0x1.ffffffffffffep-934, 0x1.fffffffffffffp-312}, 402 {0x1.ffffffffffffep-931, 0x1.fffffffffffffp-311}, 403 {0x1.ffffffffffffep-1018, 0x1.fffffffffffffp-340}, 404 {0x1.ffffffffffffep-928, 0x1.fffffffffffffp-310}, 405 {0x1.ffffffffffffep-925, 0x1.fffffffffffffp-309}, 406 {0x1.ffffffffffffep-922, 0x1.fffffffffffffp-308}, 407 {0x1.ffffffffffffep-919, 0x1.fffffffffffffp-307}, 408 {0x1.ffffffffffffep-916, 0x1.fffffffffffffp-306}, 409 {0x1.ffffffffffffep-913, 0x1.fffffffffffffp-305}, 410 {0x1.ffffffffffffep-910, 0x1.fffffffffffffp-304}, 411 {0x1.ffffffffffffep-907, 0x1.fffffffffffffp-303}, 412 {0x1.ffffffffffffep-904, 0x1.fffffffffffffp-302}, 413 {0x0.0000000000007p-1022, 0x1.e9b5dba58189ep-358}, 414 {0x1.ffffffffffffep-901, 0x1.fffffffffffffp-301}, 415 {0x1.ffffffffffffep-898, 0x1.fffffffffffffp-300}, 416 {0x0.0000000007ffp-1022, 0x1.ffeaa9c70ca31p-354}, 417 {0x0.0000000007ffep-1022, 0x1.fffd5551c7149p-354}, 418 {0x0.0000007fffffdp-1022, 0x1.ffffffcp-350}, 419 {0x0.0000007fffffep-1022, 0x1.ffffffd555555p-350}, 420 {0x0.0007ffffffffap-1022, 0x1.fffffffff8p-346}, 421 {0x0.7ffffffffffffp-1022, 0x1.fffffffffffffp-342}, 422 {0x1.ffffffffffffep-895, 0x1.fffffffffffffp-299}, 423 {0x1.ffffffffffffep-892, 0x1.fffffffffffffp-298}, 424 {0x1.ffffffffffffep-889, 0x1.fffffffffffffp-297}, 425 {0x1.ffffffffffffep-886, 0x1.fffffffffffffp-296}, 426 {0x1.ffffffffffffep-883, 0x1.fffffffffffffp-295}, 427 {0x1.ffffffffffffep-1015, 0x1.fffffffffffffp-339}, 428 {0x1.ffffffffffffep-880, 0x1.fffffffffffffp-294}, 429 {0x1.ffffffffffffep-877, 0x1.fffffffffffffp-293}, 430 {0x1.ffffffffffffep-874, 0x1.fffffffffffffp-292}, 431 {0x1.ffffffffffffep-871, 0x1.fffffffffffffp-291}, 432 {0x1.ffffffffffffep-868, 0x1.fffffffffffffp-290}, 433 {0x1.ffffffffffffep-865, 0x1.fffffffffffffp-289}, 434 {0x1.ffffffffffffep-862, 0x1.fffffffffffffp-288}, 435 {0x1.ffffffffffffep-859, 0x1.fffffffffffffp-287}, 436 {0x1.ffffffffffffep-856, 0x1.fffffffffffffp-286}, 437 {0x1.ffffffffffffep-853, 0x1.fffffffffffffp-285}, 438 {0x1.ffffffffffffep-850, 0x1.fffffffffffffp-284}, 439 {0x1.ffffffffffffep-847, 0x1.fffffffffffffp-283}, 440 {0x1.ffffffffffffep-844, 0x1.fffffffffffffp-282}, 441 {0x1.ffffffffffffep-841, 0x1.fffffffffffffp-281}, 442 {0x1.ffffffffffffep-838, 0x1.fffffffffffffp-280}, 443 {0x1.ffffffffffffep-835, 0x1.fffffffffffffp-279}, 444 {0x1.ffffffffffffep-1012, 0x1.fffffffffffffp-338}, 445 {0x1.ffffffffffffep-832, 0x1.fffffffffffffp-278}, 446 {0x1.ffffffffffffep-829, 0x1.fffffffffffffp-277}, 447 {0x1.ffffffffffffep-826, 0x1.fffffffffffffp-276}, 448 {0x1.ffffffffffffep-823, 0x1.fffffffffffffp-275}, 449 {0x1.ffffffffffffep-820, 0x1.fffffffffffffp-274}, 450 {0x1.ffffffffffffep-817, 0x1.fffffffffffffp-273}, 451 {0x1.ffffffffffffep-814, 0x1.fffffffffffffp-272}, 452 {0x1.ffffffffffffep-811, 0x1.fffffffffffffp-271}, 453 {0x1.ffffffffffffep-808, 0x1.fffffffffffffp-270}, 454 {0x1.ffffffffffffep-805, 0x1.fffffffffffffp-269}, 455 {0x1.ffffffffffffep-802, 0x1.fffffffffffffp-268}, 456 {0x1.ffffffffffffep-799, 0x1.fffffffffffffp-267}, 457 {0x1.ffffffffffffep-796, 0x1.fffffffffffffp-266}, 458 {0x1.ffffffffffffep-793, 0x1.fffffffffffffp-265}, 459 {0x1.ffffffffffffep-790, 0x1.fffffffffffffp-264}, 460 {0x1.ffffffffffffep-787, 0x1.fffffffffffffp-263}, 461 {0x1.ffffffffffffep-1009, 0x1.fffffffffffffp-337}, 462 {0x1.ffffffffffffep-784, 0x1.fffffffffffffp-262}, 463 {0x1.ffffffffffffep-781, 0x1.fffffffffffffp-261}, 464 {0x1.ffffffffffffep-778, 0x1.fffffffffffffp-260}, 465 {0x1.ffffffffffffep-775, 0x1.fffffffffffffp-259}, 466 {0x1.ffffffffffffep-772, 0x1.fffffffffffffp-258}, 467 {0x1.ffffffffffffep-769, 0x1.fffffffffffffp-257}, 468 {0x0.0000000000ffep-1022, 0x1.ffeaa9c70ca31p-355}, 469 {0x0.0000000000fffp-1022, 0x1.fff5551c6fcd6p-355}, 470 {0x0.0000000ffff86p-1022, 0x1.ffffaeaa9dbf1p-351}, 471 {0x0.0000000ffffffp-1022, 0x1.ffffff5555552p-351}, 472 {0x0.0000ffffffap-1022, 0x1.ffffffcp-347}, 473 {0x0.0000ffffffff8p-1022, 0x1.ffffffffaaaabp-347}, 474 {0x0.0fffffffffffbp-1022, 0x1.fffffffffffcbp-343} 475 }; 476 477 for(double[] testCase: testCases) 478 failures+=testCubeRootCase(testCase[0], testCase[1]); 479 480 return failures; 481 } 482 483 // Initialize shared random number generator 484 private static java.util.Random random = RandomFactory.getRandom(); 485 486 /** 487 * Test StrictMath.cbrt against transliteration port of cbrt. 488 */ 489 private static int testAgainstTranslit() { 490 int failures = 0; 491 double x; 492 493 // Test just above subnormal threshold... 494 x = Double.MIN_NORMAL; 495 failures += testRange(x, Math.ulp(x), 1000); 496 497 // ... and just below subnormal threshold ... 498 x = Math.nextDown(Double.MIN_NORMAL); 499 failures += testRange(x, -Math.ulp(x), 1000); 500 501 // ... and near zero. 502 failures += testRange(0.0, Double.MIN_VALUE, 1000); 503 504 x = Tests.createRandomDouble(random); 505 506 // Make the increment twice the ulp value in case the random 507 // value is near an exponent threshold. Don't worry about test 508 // elements overflowing to infinity if the starting value is 509 // near Double.MAX_VALUE. 510 failures += testRange(x, 2.0 * Math.ulp(x), 1000); 511 512 return failures; 513 } 514 515 private static int testRange(double start, double increment, int count) { 516 int failures = 0; 517 double x = start; 518 for (int i = 0; i < count; i++, x += increment) { 519 failures += testCubeRootCase(x, FdlibmTranslit.Cbrt.compute(x)); 520 } 521 return failures; 522 } 523} 524