Here you can find the source of hashHC(int i)
static int hashHC(int i)
//package com.java2s; /*/*from ww w .j a v a 2s . com*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ public class Main { static final int MIN_MATCH = 4; static final int HASH_LOG_HC = 15; static int hashHC(int i) { return (i * -1640531535) >>> ((MIN_MATCH * 8) - HASH_LOG_HC); } }