Sat, 22 Dec 2018 13:10:38 -0800
Added tag jdk8u202-b25 for changeset 15d8c732039b
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 */
24 /*
25 * @test
26 * @bug 8046060
27 * @summary Different results of floating point multiplication for lambda code block
28 */
30 strictfp
31 public class LambdaTestStrictFP {
33 static double fld = eval(() -> {
34 double x = Double.longBitsToDouble(0x1e7ee00000000000L);
35 double y = Double.longBitsToDouble(0x2180101010101010L);
37 return x * y;
38 });
40 public static void main(String args[]) {
41 double result = eval(() -> {
42 double x = Double.longBitsToDouble(0x1e7ee00000000000L);
43 double y = Double.longBitsToDouble(0x2180101010101010L);
45 return x * y;
46 });
47 {
48 double x = Double.longBitsToDouble(0x1e7ee00000000000L);
49 double y = Double.longBitsToDouble(0x2180101010101010L);
51 double z = x * y;
52 check(z, result, "method");
53 check(z, fld, "field");
54 }
55 }
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 }
63 private static double eval(Face arg) {
64 return arg.m();
65 }
67 private interface Face {
68 double m();
69 }
70 }