Robert Field | 5fad815 | 2014-06-20 10:56:47 -0700 | [diff] [blame] | 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 | public class LambdaTestStrictFPMethod { |
| 31 | |
| 32 | public static void main(String args[]) { |
| 33 | new LambdaTestStrictFPMethod().test(); |
| 34 | } |
| 35 | |
| 36 | strictfp void test() { |
| 37 | double result = eval(() -> { |
| 38 | double x = Double.longBitsToDouble(0x1e7ee00000000000L); |
| 39 | double y = Double.longBitsToDouble(0x2180101010101010L); |
| 40 | |
| 41 | return x * y; |
| 42 | }); |
| 43 | { |
| 44 | double x = Double.longBitsToDouble(0x1e7ee00000000000L); |
| 45 | double y = Double.longBitsToDouble(0x2180101010101010L); |
| 46 | |
| 47 | double z = x * y; |
| 48 | check(z, result, "method"); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | strictfp void check(double expected, double got, String where) { |
| 53 | if (got != expected) { |
| 54 | throw new AssertionError(where + ": Non-strictfp " + got + " != " + expected); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | static double eval(Face arg) { |
| 59 | return arg.m(); |
| 60 | } |
| 61 | |
| 62 | interface Face { |
| 63 | double m(); |
| 64 | } |
| 65 | } |