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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.
namespace System.Collections
{
// The IComparer interface implements a method that compares two objects. It is
// used in conjunction with the Sort and BinarySearch methods on
// the Array and List classes.
//
// Interfaces are not serializable
public interface IComparer
{
// Compares two objects. An implementation of this method must return a
// value less than zero if x is less than y, zero if x is equal to y, or a
// value greater than zero if x is greater than y.
//
int Compare(object? x, object? y);
}
}
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