Get Combined Hash code for Array - CSharp System

CSharp examples for System:Array Element

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Description

Get Combined Hash code for Array

Demo Code

/* ************************************************************
 *
 *    @author Couchbase <info@couchbase.com>
 *    @copyright 2014 Couchbase, Inc./*from   ww  w  . j  av a 2s .c  o m*/
 *
 *    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.
 *
 * ************************************************************/
using System.Linq;
using System.Collections.Generic;
using System;

public class Main{
        public static int GetCombinedHashcode(this Array array)
        {
            unchecked
            {
                var hash = 0;
                var count = 0;
                foreach (var item in array)
                {
                    if (item.GetType().BaseType == typeof (Array))
                    {
                        var jagged = (Array)item;
                        foreach (var inner in jagged)
                        {
                            hash += inner.GetHashCode();
                            count++;
                        }
                    }
                    else
                    {
                        hash += item.GetHashCode();
                        count++;
                    }
                }
                return 31*hash + count.GetHashCode();
            }
        }
}

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