En C# IStructuralEquatable Nasıl kullanılır Sırları

En C# IStructuralEquatable Nasıl kullanılır Sırları

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However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

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Tasarmızın fevkdaki satırlarında da bahsettiğimiz kabil struct C#’ta value type yaratabileceğimiz dokumadır.

You generic method saf a type parameter T but the type is derece part of the signature of the function so how is T supposed to be used in the function? Anyway, you kişi use .Kupkuru tuples or anonymous types to create hash codes by combining values but I am not sure this answers your question.

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So, I am apparently wrong birli unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed takım of values a requirement?

I've noticed these two interfaces, and several associated classes, have been added in .Safi 4. They seem a bit superfluous to me; I've read several blogs about them, but I still can't figure out what sorun they solve that was tricky before .Kupkuru 4.

Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and C# IStructuralEquatable Nasıl kullanılır using boxing for each member. Additionally, he mentions that a memory comparison may hamiş give you the correct results in this super simple example:

When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable hayat be useful.

GitHub'da bizimle işbirliği dokuman Bu gönülğin kaynağı GitHub'da bulunabilir; burada hassaten sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Daha bir küme malumat muhtevain ulamada bulunan 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 dirilik just compare each of them":

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