74 lines
2.7 KiB
Java
74 lines
2.7 KiB
Java
/*
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* Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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@bug 4096278
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@summary Math.abs(+0.0) wrong
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@author Anand Palaniswamy
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*/
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public class AbsPositiveZero {
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private static boolean isPositiveZero(float f) {
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return Float.floatToIntBits(f) == Float.floatToIntBits(0.0f);
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}
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private static boolean isPositiveZero(double d) {
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return Double.doubleToLongBits(d) == Double.doubleToLongBits(0.0d);
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}
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public static void main(String[] args) throws Exception {
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if (!isPositiveZero(Math.abs(-0.0d))) {
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throw new Exception("abs(-0.0d) failed");
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}
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if (!isPositiveZero(Math.abs(+0.0d))) {
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throw new Exception("abs(+0.0d) failed");
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}
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if (Math.abs(Double.POSITIVE_INFINITY) != Double.POSITIVE_INFINITY) {
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throw new Exception("abs(+Inf) failed");
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}
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if (Math.abs(Double.NEGATIVE_INFINITY) != Double.POSITIVE_INFINITY) {
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throw new Exception("abs(-Inf) failed");
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}
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double dnanval = Math.abs(Double.NaN);
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if (dnanval == dnanval) {
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throw new Exception("abs(NaN) failed");
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}
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if (!isPositiveZero(Math.abs(-0.0f))) {
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throw new Exception("abs(-0.0f) failed");
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}
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if (!isPositiveZero(Math.abs(+0.0f))) {
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throw new Exception("abs(+0.0f) failed");
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}
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if (Math.abs(Float.POSITIVE_INFINITY) != Float.POSITIVE_INFINITY) {
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throw new Exception("abs(+Inf) failed");
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}
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if (Math.abs(Float.NEGATIVE_INFINITY) != Float.POSITIVE_INFINITY) {
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throw new Exception("abs(-Inf) failed");
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}
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float fnanval = Math.abs(Float.NaN);
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if (fnanval == fnanval) {
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throw new Exception("abs(NaN) failed");
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}
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}
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}
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