com.hazelcast.util.collection.Hashing Maven / Gradle / Ivy
/*
* Original work Copyright 2015 Real Logic Ltd.
* Modified work Copyright (c) 2015, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.util.collection;
import static com.hazelcast.util.HashUtil.fastIntMix;
import static com.hazelcast.util.HashUtil.fastLongMix;
/**
* Hashcode functions for classes in this package.
*/
public final class Hashing {
private Hashing() { }
static int intHash(final int value, final int mask) {
return fastIntMix(value) & mask;
}
static int longHash(final long value, final int mask) {
return ((int) fastLongMix(value)) & mask;
}
static int evenLongHash(final long value, final int mask) {
final int h = (int) fastLongMix(value);
return h & mask & ~1;
}
}