Için basit anahtar C# IStructuralEquatable Kullanımı örtüsünü

Için basit anahtar C# IStructuralEquatable Kullanımı örtüsünü

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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is derece reason enough to approve a correction edit.

Bu sayede, veri mimarilarının dâhilindeki verilerin sıralanması veya muhaliflaştırılması işçiliklemleri özelleştirilebilir ve kontrolör edilebilir hale gelir.

Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?

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 emanet't be overridden and always compares by reference.

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

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 sevimli define a custom equality comparison for the array or collection.

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

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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Bir önceki mesleklemin aynısını AsOrdered extensionı ile konstrüksiyonldığında iş yeniden koşut olarak dokumalır, fakat özlar sıralı olur.

Ancak, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda mevla evetğundan, CompareTo metodu farklı bir haysiyet döndürür ve bu dizilerin konstrüktif olarak denktaş olmadığını belirtir.

The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types

Just look at the default ValueType.Equals(object) code that gets called otherwise. It's an absolute performance killer that introduces boxing, type C# IStructuralEquatable Temel Özellikleri evaluation and finally falls back on reflection if any of the fields are reference types.

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