jdk8-mips64-public/langtools: test/tools/javac/lambda/LambdaTestStrictFPMethod.java@93012e2a5d1d

     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 public class LambdaTestStrictFPMethod {

    32     public static void main(String args[]) {

    33         new LambdaTestStrictFPMethod().test();

    34     }

    36     strictfp void test() {

    37         double result = eval(() -> {

    38             double x = Double.longBitsToDouble(0x1e7ee00000000000L);

    39             double y = Double.longBitsToDouble(0x2180101010101010L);

    41             return x * y;

    42         });

    43         {

    44             double x = Double.longBitsToDouble(0x1e7ee00000000000L);

    45             double y = Double.longBitsToDouble(0x2180101010101010L);

    47             double z = x * y;

    48             check(z, result, "method");

    49         }

    50     }

    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     }

    58     static double eval(Face arg) {

    59         return arg.m();

    60     }

    62     interface Face {

    63         double m();

    64     }

    65 }

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