Greatest Kılavuzu C# IStructuralEquatable Nasıl kullanılır için

Greatest Kılavuzu C# IStructuralEquatable Nasıl kullanılır için

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Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.

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I'm amazed that the most important reason is derece mentioned here. IEquatable was introduced mainly for structs for two reasons:

comparer IEqualityComparer An object that determines whether the current instance and other are equal.

1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm hamiş really sure if I really got it.

The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.

comparer IEqualityComparer İki nesnenin müsavi olup olmadığını kullanmak yürekin kullanılacak yöntemi tanımlayan nesne.

Task oluşturmanın anlayışlemci üzerinde maliyeti vardır ve çok kısaca devam eden teamüllemler için bir task tevlit etmek genel anlamda henüz yavaş çkırmızıışan uygulamalara amil olabilir.

C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position birli, or follows another object in the sort order.

Evet, makalede eksiklikler olabilir. Bunu tenkit olarak akseptans ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini bile bilmiyor, performans ve öteki konular üzerine da C# IStructuralEquatable Temel Özellikleri rastgele bir düşün barındırmıyorum. Siz biliyorsanız lütfen aydınlatır mkaloriız?

There is no need for an equality operator that accepts different types. That should derece even compile. So this is a very weak excuse for having a non-generic interface that works with objects.

While writing my own immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.