System.Collections.Generic.EqualityComparer<T>
namespace System.Collections.Generic
{
public abstract class EqualityComparer<T> : IEqualityComparer<T>, IEqualityComparer
{
public static EqualityComparer<T> Default { get; }
protected EqualityComparer();
public abstract bool Equals(T x, T y);
public abstract int GetHashCode(T obj);
}
}