Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/lambda/LambdaTestStrictFP.java
test/tools/javac/lambda/LambdaTestStrictFP.java
- changeset 2528
- eb284abd64fe
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| 2431:37c7dbe8efee | 2528:eb284abd64fe |
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| 1 /* | |
| 2 * Copyright (c) 2014, 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 8046060 | |
| 27 * @summary Different results of floating point multiplication for lambda code block | |
| 28 */ | |
| 29 | |
| 30 strictfp | |
| 31 public class LambdaTestStrictFP { | |
| 32 | |
| 33 static double fld = eval(() -> { | |
| 34 double x = Double.longBitsToDouble(0x1e7ee00000000000L); | |
| 35 double y = Double.longBitsToDouble(0x2180101010101010L); | |
| 36 | |
| 37 return x * y; | |
| 38 }); | |
| 39 | |
| 40 public static void main(String args[]) { | |
| 41 double result = eval(() -> { | |
| 42 double x = Double.longBitsToDouble(0x1e7ee00000000000L); | |
| 43 double y = Double.longBitsToDouble(0x2180101010101010L); | |
| 44 | |
| 45 return x * y; | |
| 46 }); | |
| 47 { | |
| 48 double x = Double.longBitsToDouble(0x1e7ee00000000000L); | |
| 49 double y = Double.longBitsToDouble(0x2180101010101010L); | |
| 50 | |
| 51 double z = x * y; | |
| 52 check(z, result, "method"); | |
| 53 check(z, fld, "field"); | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 private static void check(double expected, double got, String where) { | |
| 58 if (got != expected) { | |
| 59 throw new AssertionError(where + ": Non-strictfp " + got + " != " + expected); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 private static double eval(Face arg) { | |
| 64 return arg.m(); | |
| 65 } | |
| 66 | |
| 67 private interface Face { | |
| 68 double m(); | |
| 69 } | |
| 70 } |
