C# IStructuralEquatable Kullanımı Temel Açıklaması

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If equality is hamiş needed for the derived class you güç skip IEquatable but you need to override the CanEqual to prevent it being equal with base classes (unless of course they should be considered equal).

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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.

Do hamiş fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The nice thing is that we kind of actually already did this! So now we just have to do this:

Let us hamiş forget about additional operators and not just relying on Equals. We emanet implement the == and != operators easily:

Your concern is that Object.GetHashCode() does hamiş provide values that are stable and the concern is very valid as gönül be seen in the first box headed by Caution in the documentation:

After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.

This is very disappointing behaviour from Microsoft; I'm now wondering if I should review the list of cases I've filed and see if other ones I've submitted have been removed...

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

In Xamarin.Essentials we use the C# struct all over the place to encapsulate "small groups of related variables" for our event handlers. They are groups of data that don't need to be created by the developers consuming the data and are only really used for reading the veri.

Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.

Oldu, makalede eksiklikler olur. Bunu tenkit olarak kabul C# IStructuralEquatable Nasıl kullanılır ediyorum. Işlevsel programlamada struct kullanılmasının nedenini bile bilmiyor, başarım ve diğer mevzular için da rastgele bir düşünce barındırmıtefsir. Siz biliyorsanız lütfen aydınlatır mkaloriız?

Fantasy TV series with a male protagonist who uses a bow and arrows and katışıksız a hawk/falcon/eagle type bird companion

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