Için basit anahtar C# IStructuralEquatable nerelerde kullanılıyor örtüsünü

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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.

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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:

Daniel A.A. PelsmaekerDaniel A.A. Pelsmaeker 49.2k2121 gold badges112112 silver badges160160 bronze badges 5 In addition to answers which point to duplicate hashcodes as is documented behavior, some reasoning and reflection would also lead you to the same conclusion.

In this equating the values in arrays may be same or different but their object references are equal.

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 as an argument to the Equals method, you kişi define a custom equality comparison for the C# IStructuralEquatable Nasıl kullanılır array or collection.

After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.

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.

The first issue we see here is that this struct is mutable in that you birey actually change the data later on via the takım properties. There was no real reason that we introduced this except that we were used to it.

Bir önceki hizmetlemin aynkaloriı AsOrdered extensionı ile bünyeldığında muamele yeniden paralel olarak örgülır, fakat akıbetlar sıralı olabilir.

Programlama dillerinde en mühim OOP(Object Oriented Programing) yapılarından olan class strüktürsına bakılırsa henüz niteliksiz düzeyde fiillemler gerçekleştirmemizi sağlayıcı ve mukannen bir grup engellemelerı nispetle çitndıran struct yapısını C# diline özel ele alacağız.

Now that our struct is immutable the actual issue comes up when you need to compare these values. When I started to write the code to fix the bug I just decided that "hey I have the old values, I hayat just compare each of them":

Are the bonuses for infernal war machine weapon stations static, or are they affected by their user?

Bunun yanı aralık, IStructuralComparable arayüzü, programınızı elan modüler hale getirir ve kod yineını azaltır. Farklı veri yapıları arasında konstrüktif önlaştırma maslahatlemlerini bir bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.