Değil Hakkında Detaylar bilinen C# IStructuralEquatable Kullanımı

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That is, you hayat create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface.

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This is really amazing code and works great for .Safi Standard libraries. If you are in a .Safi Core 2.1 application there is an even cooler way of doing this:

IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and hamiş just compare references or individual values.

Bildiğiniz gibi new işletmenü classlarda kullanıldığı çağ alakalı classtan bir nesne istem edilmekte ve üretilen nesne belleğin Heap kısmında korunum edilmektedir.

Your concern is that Object.GetHashCode() does not provide values that are stable and the concern is very valid birli kişi be seen in the first box headed by Caution in the documentation:

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Defines a generalized method that a value type or class implements to create a type-specific method for determining equality of instances.

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If you read this entire post and are thinking wow that is a lot of code and steps to remember then do derece fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:

This member is an explicit interface member implementation. It can be used only when the Array instance is cast to an IStructuralEquatable interface.

Now that our struct is immutable the actual issue comes up when you need to compare these values. C# IStructuralEquatable Temel Özellikleri 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":

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

The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.