org.jetbrains.jet.utils.BitSetUtils Maven / Gradle / Ivy
/*
* Copyright 2010-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.jet.utils;
import java.util.BitSet;
public class BitSetUtils {
private BitSetUtils() {
}
public static int toInt(BitSet bitSet) {
int intValue = 0;
for (int bit = 0; bit < bitSet.length(); bit++) {
if (bitSet.get(bit)) {
intValue |= (1 << bit);
}
}
return intValue;
}
public static BitSet toBitSet(int value) {
BitSet bitSet = new BitSet();
int bit = 0;
while (value > 0) {
bitSet.set(bit++, value % 2 == 1);
value >>= 1;
}
return bitSet;
}
}