/*
 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

import java.util.Random;

/*
 * @test
 * @bug 8226297
 * @run main FailedFloat
 */
public class FailedFloat {
    private static final int MAX_N = (1 << 13) /* Arrays.MIN_ARRAY_SORT_GRAN */ + 10;

    public static void main(String[] args) {
        float[] a = new float[MAX_N];
        random(a);
        java.util.Arrays.parallelSort(a);
        check(a);
        System.out.println("PASSED");
    }

    private static void random(float[] a) {
        Random random = new Random(777);
        for (int i = 0; i < MAX_N; i++) {
            a[i] = random.nextBoolean() ? -0.0f : 0.0f;
        }
    }

    private static void check(float[] a) {
        for (int i = 0; i < a.length - 1; ++i) {
            if (Float.floatToRawIntBits(a[i]) == 0 && Float.floatToRawIntBits(a[i + 1]) < 0) {
                throw new RuntimeException(a[i] + " goes before "+ a[i + 1] + " at position " + i);
            }
        }
    }
}