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 30public 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} 66