1   /*
2    * Copyright (C) 2015 Uwe Plonus
3    *
4    * This program is free software: you can redistribute it and/or modify
5    * it under the terms of the GNU General Public License as published by
6    * the Free Software Foundation, either version 3 of the License, or
7    * (at your option) any later version.
8    *
9    * This program is distributed in the hope that it will be useful,
10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   * GNU General Public License for more details.
13   *
14   * You should have received a copy of the GNU General Public License
15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16   */
17  package de.sw4j.examples.bitoperation;
18  
19  /**
20   * Example for "BIT: Check for sign of bitwise operation" {@code (BIT_SIGNED_CHECK)}.
21   */
22  public class CheckSign {
23  
24      private static final int FLAG = 0x40000000;
25  
26      public boolean bug(int value) {
27          boolean flagSet = ((value & FLAG) > 0);
28          return flagSet;
29      }
30  
31  }