Clears a range of bits in the specified integer.
/***
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Linking this library statically or dynamically with other modules
* is making a combined work based on this library. Thus, the terms and
* conditions of the GNU General Public License cover the whole
* combination.
*
* As a special exception, the copyright holders of this library give
* you permission to link this library with independent modules to
* produce an executable, regardless of the license terms of these
* independent modules, and to copy and distribute the resulting
* executable under terms of your choice, provided that you also meet,
* for each linked independent module, the terms and conditions of the
* license of that module. An independent module is a module which
* is not derived from or based on this library. If you modify this
* library, you may extend this exception to your version of the
* library, but you are not obligated to do so. If you do not wish
* to do so, delete this exception statement from your version.
*
* Project: www.simpledbm.org
* Author : Dibyendu Majumdar
* Email : d dot majumdar at gmail dot com ignore
*/
//package org.simpledbm.common.util;
/**
* @author Dibyendu
* @since 20 Nov 2006
*/
public class BitwiseOperations {
/**
* Clears a range of bits in the specified integer.
*
* @param x
* Integer argument
* @param p
* Position (0-31)
* @param n
* Number of bits to clear
* @return Modified integer
*/
static final int clearbits(final int x, final int p, final int n) {
return x & ~((~0 << (32 - n)) >>> p);
}
}
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