author | bpb |
Mon, 29 Jun 2015 14:49:47 -0700 | |
changeset 31423 | 40f3cbfffce8 |
parent 23010 | 6dadb192ad81 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009, 2013, 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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/* |
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* @test |
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* @bug 6371401 |
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* @summary Tests of shiftLeft and shiftRight on Integer.MIN_VALUE |
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* @requires os.maxMemory >= 1g |
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* @run main/othervm -Xmx512m ExtremeShiftingTests |
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* @author Joseph D. Darcy |
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*/ |
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import java.math.BigInteger; |
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import static java.math.BigInteger.*; |
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public class ExtremeShiftingTests { |
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public static void main(String... args) { |
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BigInteger bi = ONE.shiftLeft(Integer.MIN_VALUE); |
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if (!bi.equals(ZERO)) |
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throw new RuntimeException("1 << " + Integer.MIN_VALUE); |
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bi = ZERO.shiftLeft(Integer.MIN_VALUE); |
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if (!bi.equals(ZERO)) |
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throw new RuntimeException("0 << " + Integer.MIN_VALUE); |
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bi = BigInteger.valueOf(-1); |
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bi = bi.shiftLeft(Integer.MIN_VALUE); |
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if (!bi.equals(BigInteger.valueOf(-1))) |
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throw new RuntimeException("-1 << " + Integer.MIN_VALUE); |
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try { |
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ONE.shiftRight(Integer.MIN_VALUE); |
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throw new RuntimeException("1 >> " + Integer.MIN_VALUE); |
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} catch (ArithmeticException ae) { |
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; // Expected |
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} |
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bi = ZERO.shiftRight(Integer.MIN_VALUE); |
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if (!bi.equals(ZERO)) |
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throw new RuntimeException("0 >> " + Integer.MIN_VALUE); |
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try { |
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BigInteger.valueOf(-1).shiftRight(Integer.MIN_VALUE); |
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throw new RuntimeException("-1 >> " + Integer.MIN_VALUE); |
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} catch (ArithmeticException ae) { |
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; // Expected |
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} |
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} |
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} |