src/mscorlib/src/System/Collections/Generic/IEqualityComparer.cs


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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

// 

namespace System.Collections.Generic {
    using System;

    // The generic IEqualityComparer interface implements methods to if check two objects are equal
    // and generate Hashcode for an object.
    // It is use in Dictionary class.  
    public interface IEqualityComparer<in T>
    {
        bool Equals(T x, T y);
        int GetHashCode(T obj);                
    }
}