Gets the hash code for an object using a comparer. Correctly handles null. : IComparer « Class Interface « C# / C Sharp

Home
C# / C Sharp
1.2D Graphics
2.Class Interface
3.Collections Data Structure
4.Components
5.Data Types
6.Database ADO.net
7.Design Patterns
8.Development Class
9.Event
10.File Stream
11.Generics
12.GUI Windows Form
13.Language Basics
14.LINQ
15.Network
16.Office
17.Reflection
18.Regular Expressions
19.Security
20.Services Event
21.Thread
22.Web Services
23.Windows
24.Windows Presentation Foundation
25.XML
26.XML LINQ
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source
C# / C Sharp » Class Interface » IComparerScreenshots 
Gets the hash code for an object using a comparer. Correctly handles null.
 

//******************************
// Written by Peter Golde
// Copyright (c) 2004-2007, Wintellect
//
// Use and restribution of this code is subject to the license agreement 
// contained in the file "License.txt" accompanying this file.
//******************************

using System;
using System.Collections;
using System.Collections.Generic;


namespace Wintellect.PowerCollections
{
  /// <summary>
  /// A holder class for various internal utility functions that need to be shared.
  /// </summary>
    internal static class Util
    {
        /// <summary>
        /// Gets the hash code for an object using a comparer. Correctly handles
        /// null.
        /// </summary>
        /// <param name="item">Item to get hash code for. Can be null.</param>
        /// <param name="equalityComparer">The comparer to use.</param>
        /// <returns>The hash code for the item.</returns>
        public static int GetHashCode<T>(T item, IEqualityComparer<T> equalityComparer)
        {
            if (item == null)
                return 0x1786E23C;
            else
                return equalityComparer.GetHashCode(item);
        }
   }
}

   
  
Related examples in the same category
1.Implement IComparer
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.