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/*******************************************************************************
* Copyright (c) 2006, 2007 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.utility.internal;
/**
* Assorted bit tools
*/
public class BitTools {
/**
* Return whether the specified 'flags' has all the specified
* 'flagsToCheck' set.
*/
public static boolean allFlagsAreSet(int flags, int flagsToCheck) {
return (flags & flagsToCheck) == flagsToCheck;
}
/**
* Return whether the specified 'flags' has any one of the specified
* 'flagsToCheck' set.
*/
public static boolean anyFlagsAreSet(int flags, int flagsToCheck) {
return (flags & flagsToCheck) != 0;
}
/**
* Return whether the specified 'flags' has all the specified
* 'flagsToCheck' set.
*/
public static boolean allFlagsAreSet(int flags, int[] flagsToCheck) {
for (int i = flagsToCheck.length; i-- > 0; ) {
if ( ! allFlagsAreSet(flags, flagsToCheck[i])) {
return false;
}
}
return true;
}
/**
* Return whether the specified 'flags' has any one of the specified
* 'flagsToCheck' set.
*/
public static boolean anyFlagsAreSet(int flags, int[] flagsToCheck) {
for (int i = flagsToCheck.length; i-- > 0; ) {
if (anyFlagsAreSet(flags, flagsToCheck[i])) {
return true;
}
}
return false;
}
// ********** constructor **********
/**
* Suppress default constructor, ensuring non-instantiability.
*/
private BitTools() {
super();
throw new UnsupportedOperationException();
}
}
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