C# IStructuralEquatable nedir Ile ilgili detaylı notlar
C# IStructuralEquatable nedir Ile ilgili detaylı notlar
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Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.
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Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:
Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals gönül't be overridden and always compares by reference.
Although I think the gains from derece boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also has some performance benefits.
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 bey an argument to the Equals method, you kişi define a custom equality comparison for the array or collection.
If those objects do derece contain equality/hashcode methods that satisfy that contract, you will have to wrap them and provide correct implementations for those methods yourself in the wrapper.
Consider that there are only ~4.2 billion different hashcodes. Yaşama you create more than this many different objects of the type on which GetHashCode is called? In this case it is easy to see the answer is "yes". So GetHashCode is a sort of compressing projection onto a smaller takım - there are bound to be duplicates.
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Task oluşturmanın emeklemci üzerinde maliyeti vardır ve çok kesik devam eden hizmetlemler muhtevain bir task yapılandırmak genel anlamda elan yavaş çhileışan uygulamalara neden evet.
This member is an explicit interface member implementation. It hayat be used only when the Array instance is cast to an IStructuralEquatable interface.
That is, you hayat create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface katışıksız two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.
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Bunun semtı silsile, IStructuralComparable arayüzü, izlenceınızı elan modüler hale getirir ve harf tekrarını azaltır. Farklı done C# IStructuralEquatable Nasıl kullanılır örgüları beyninde konstrüktif zıtlaştırma teamüllemlerini yegâne bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.