langtools/test/tools/javac/ShiftExpressionTest.java
changeset 10 06bc494ca11e
child 5520 86e4b9a9da40
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0:fd16c54261b3 10:06bc494ca11e
       
     1 /*
       
     2  * Copyright 1997-1998 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
       
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
       
    21  * have any questions.
       
    22  */
       
    23 
       
    24 /*
       
    25  * @test
       
    26  * @bug 4082814
       
    27  * @summary Constant shift expressions whose left operands were of type
       
    28  *          long were previously not evaluated correctly at compile-time.
       
    29  *          This is for the most part invisible, but it can be detected
       
    30  *          with the following test after 1.2beta1.
       
    31  * @author turnidge
       
    32  *
       
    33  * @compile ShiftExpressionTest.java
       
    34  * @run main ShiftExpressionTest
       
    35  */
       
    36 
       
    37 public class ShiftExpressionTest {
       
    38     public static void main(String[] args) throws Exception {
       
    39         String s = "" + (0x0101L << 2) + (0x0101L >> 2) + (0x0101L >>> 2);
       
    40         if (s.indexOf("null",0) != -1) {
       
    41             throw new Exception(
       
    42                   "incorrect compile-time evaluation of shift");
       
    43         }
       
    44     }
       
    45 }