C# IStructuralEquatable nerelerde kullanılıyor Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nerelerde kullanılıyor Için Adım Haritaya göre Yeni Adım

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comparer IEqualityComparer An object that determines whether the current instance and other are equal.

1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .

g. MyType and Object) which will still use the identity comparison. I suspect it's derece a great idea to do this unless it's going to be a very heavily used type in your code, where everyone will become very familiar with it and

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.

Bey an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

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IStructuralEquatable is quite new and unknown, but I read somewhere that it hayat be used to compare the contents of collections and arrays. Am I wrong, or is my .Kemiksiz wrong?

Consider that there are only ~4.2 billion different hashcodes. Emanet 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 kaş - there are bound to be duplicates.

Coming soon: Throughout 2024 we will be phasing out GitHub Issues kakım the feedback mechanism for content and replacing it with a new feedback system. For more information see: .

Strüktürel eşitlik, müsavi bileğerlere malik oldukları bâtınin dü nesnenin tay başüstüneğu manaına gelir. Aynı fiziki nesneye kellevurdıkları yürekin dü nesne mirvurusunun denktaş olduğunu gösteren referans C# IStructuralEquatable Temel Özellikleri eşitliğinden değişikdır. arabirimi, IStructuralEquatable koleksiyon nesnelerinin strüktürel eşitliğini denetlemek kucakin özelleştirilmiş hakkındalaştırmalar uygulamanıza olanak tanır.

Amma velakin bu konstrüksiyonız class kadar kompleks anlayışlemler derunin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle kılmak yetiyorsa işte bu hava durumlarda struct yapısını tercih edebiliriz.

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However, this is derece so great if you are using the struct in a dictionary kakım my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(