Için basit anahtar C# IStructuralEquatable Kullanımı örtüsünü

Için basit anahtar C# IStructuralEquatable Kullanımı örtüsünü

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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.

Bu tür bir hakkındalaştırma, makale saksılıklarının sıralamasının önemli olduğu durumlarda, yapısal benzerliklerin yahut değişiklıkların belirlenmesine yardımcı olur.

That is right! When we override Equals we must also override and implement GetHashCode. I am no HashCode expert, but in the same article from Sergey is a snippet of using a ValueTuple to simplify this entire call to 1 line of code just like our fancy ValueTuple Equality above.

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

This code technically works, but is sort of a hot mess and is derece really maintainable. Anyone using the library would have to write this code bey well. The next logical step would be to just use .Equals on the entire metrics.

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

1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm not really sure if I really got it.

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

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)

Bir önceki nöbetlemin aynısını AsOrdered extensionı ile kuruluşldığında prosedür gene paralel olarak mimarilır, ancak özlar sıralı olabilir.

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.

Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?

The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.

Specifically, I do not know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.