| /* |
| * Copyright (c) 2011,2020, 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 8255368 |
| * @summary Tests corner cases of Math.exp |
| */ |
| |
| public class ExpCornerCaseTests { |
| private ExpCornerCaseTests(){} |
| |
| public static void main(String... args) { |
| int failures = 0; |
| |
| failures += testExpCornerCases(); |
| |
| if (failures > 0) { |
| System.err.printf("Testing exp corner cases incurred %d failures.%n", failures); |
| throw new RuntimeException(); |
| } |
| } |
| |
| private static int testExpCornerCases() { |
| int failures = 0; |
| double [][] testCases = { |
| {+0x4.0p8, Double.POSITIVE_INFINITY}, |
| {+0x2.71p12, Double.POSITIVE_INFINITY}, |
| }; |
| |
| for (double[] testCase : testCases) { |
| failures += testExp(testCase[0], testCase[1]); |
| } |
| |
| return failures; |
| } |
| |
| private static int testExp(double input, double expected) { |
| int failures = 0; |
| failures += Tests.test("StrictMath.exp", input, StrictMath.exp(input), expected); |
| failures += Tests.test("Math.exp", input, Math.exp(input), expected); |
| return failures; |
| } |
| } |