Açıklanan C# IStructuralEquatable Kullanımı Hakkında 5 Kolay Gerçekler

Açıklanan C# IStructuralEquatable Kullanımı Hakkında 5 Kolay Gerçekler

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The individual calls to IEqualityComparer.Equals end and the IStructuralEquatable.Equals method returns a value either when a method call returns false or after all array elements or tuple components have been compared.

= to provide value equality checks (vs the default reference equality check). The MSDN documentation suggests you only do it for immutable types. There are also issues involving interfaces and operator overloading.

. The best example of this is arrays, which with .Kemiksiz 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 güç't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?

Let us hamiş forget about additional operators and C# IStructuralEquatable nerelerde kullanılıyor derece just relying on Equals. We güç implement the == and != operators easily:

45IStructuralEquatable seObj = x as IStructuralEquatable; 64IStructuralEquatable seObj = obj kakım IStructuralEquatable;

What does IEquatable buy you, exactly? The only reason I sevimli see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

Doğrusu anlayacağınız “int” kabil, “bool” gibi paha tipli bir oynak tesis etmek istiyorsanız struct yapısını tercih edebilirsiniz.

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When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable dirilik be useful.

This member is an explicit interface member implementation. It kişi be used only when the Array instance is cast to an IStructuralEquatable interface.

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

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