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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.
// =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
//
// ReverseComparer.cs
//
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
namespace System.Linq.Parallel
{
/// <summary>
/// Comparer that wraps another comparer, and flips the result of each comparison to the
/// opposite answer.
/// </summary>
/// <typeparam name="T"></typeparam>
internal sealed class ReverseComparer<T> : IComparer<T>
{
private readonly IComparer<T> _comparer;
internal ReverseComparer(IComparer<T> comparer)
{
_comparer = comparer;
}
public int Compare(T? x, T? y)
{
return _comparer.Compare(y, x);
}
}
}
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