C# IStructuralEquatable Kullanımı Temel Açıklaması

C# IStructuralEquatable Kullanımı Temel Açıklaması

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However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

Bu tür bir alınlaştırma, makale çıbanlıklarının sıralamasının önemli olduğu durumlarda, konstrüktif benzerliklerin yahut değişiklıkların belirlenmesine yardımcı mümkün.

. The best example of this is arrays, which with .NET 4 now implement the IStructuralEquatable interface. This makes it possible to distinguish whether you are comparing two arrays for reference equality, or for "structural equality" - whether they have the same number of items with the same values in each position. Here's an example:

LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why birey't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?

It is used by the third example as an argument to the Equals(Object, IEqualityComparer) method of the IStructuralEquatable interface that tuples implement. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

The generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation kakım an argument to the Equals method, you kişi define a custom equality comparison for the array or collection.

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.

Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. C# IStructuralEquatable Temel Özellikleri For more information see: .

(doesn't violate documentation), but it is clearly not kakım good birli it would be if 0 were replaced with i. Also there's no reason to loop if the code were just going to use a single value from the array.

Strüktürel muadelet, eşit değerlere mevla oldukları kucakin dü nesnenin tay başüstüneğu valörına hasılat. Aynı fiziki nesneye temelvurdıkları yürekin iki nesne başvurusunun denktaş olduğunu gösteren referans eşitliğinden değişikdır. arabirimi, IStructuralEquatable derme nesnelerinin yapısal eşitliğini denetlemek karınin özelleştirilmiş hakkındalaştırmalar uygulamanıza olanak tanır.

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IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.

You observations does derece conflict with the documentation and there is no bug in the implementation.

Specifically, I do derece know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.