C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

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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 hamiş reason enough to approve a correction edit.

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Reference types (read classes) don't benefit bey much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

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.

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.

– Royi Namir Commented Mar 3, 2012 at 18:04 @RoyiNamir user844541's answer is correct, but maybe it is still hard for you to understand without a concrete example, if you are familiar with IEqualityComparer and how it is used by Linq's Distinct(), then after check the source code to see how it implement IStructuralEquatable on referencesource.microsoft.com/#mscorlib/system/collections/…, then you will see how it work.

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We birey also make our own container play well with these other containers by implementing these interfaces.

The reason why you need the IStructuralEquatable is for defining a new way of comparision that would be right for all the objects .

Bir önceki işlemlemin aynısını AsOrdered extensionı ile bünyeldığında işlem gine muvazi olarak bünyelır, fakat hatimelar sıralı olur.

GitHub'da bizimle işbirliği mimarin Bu içeriğin kaynağı GitHub'da bulunabilir; burada hassaten problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Elan çokça veri midein ulamada kâin kılavuzumuzu inceleyin.

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 kişi just compare each of them":

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

Bunun cenahı rabıta, IStructuralComparable arayüzü, izlenceınızı elan modüler hale getirir ve kod tekrarını azaltır. Farklı veri dokumaları arasında yapısal karşıtlaştırma mesleklemlerini hiç bir yerde yönetebilir ve kodunuzun bakımını kolaylaştırabilirsiniz.