Greatest Kılavuzu C# IStructuralEquatable Kullanımı için

Greatest Kılavuzu C# IStructuralEquatable Kullanımı için

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It's normally expected that if you implement IEquatable.Equals you will also override Object.Equals to be consistent. In this case how would you support both reference and structural equality?

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g. MyType and Object) which will still use the identity comparison. I suspect it's not 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

Alfabemızın mafevkdaki satırlarında da bahsettiğimiz gibi struct C#’ta value type yaratabileceğimiz binadır.

I'm amazed that the most important reason is not mentioned here. IEquatable was introduced mainly for structs for two reasons:

45IStructuralEquatable seObj = x bey IStructuralEquatable; 64IStructuralEquatable seObj = obj kakım IStructuralEquatable;

What does IEquatable buy you, exactly? The only reason I emanet see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

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.

Ray BooysenRay Booysen 29.6k1414 gold badges8686 silver badges111111 bronze badges 6 so when you are dealing with objects, is == assumed to only mean the exact same memory address (same instance)

If you read this entire post and are thinking wow that is a lot of code and steps to remember then do not fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:

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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":

Is there any yasal justification for content on the web C# IStructuralEquatable Temel Özellikleri without an explicit licence being freeware? more hot questions

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