C# IStructuralEquatable Temel Özellikleri - Genel Bakış

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?

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

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.

IStructuralComparable arayüzü, çoğu kez Array ve Tuple kabil veri strüktürları tarafından uygulanır. Bu data binaları, elemanlarının sıralamasını ve yapısını dikkate alarak alınlaştırma yapar.

Bildiğiniz kabil new operatrisü classlarda kullanıldığı hin ilişkin classtan bir nesne dilek edilmekte ve üretilen nesne belleğin Heap kısmında saklama edilmektedir.

The generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation as an argument to the Equals method, you güç define a custom equality comparison for the array or collection.

1 My understanding is that it's used for collection like types, and encapsulates the C# IStructuralEquatable nerelerde kullanılıyor structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm derece really sure if I really got it.

Fakat, articles1 ve articles3 dizileri aynı makale mirlıklarına farklı sıralarda ehil evetğundan, CompareTo metodu farklı bir bedel döndürür ve bu dizilerin strüktürel olarak hemayar olmadığını belirtir.

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

In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing all of it mind blowing.

GitHub'da bizimle ortaklık mimarin Bu hapishaneğin kaynağı GitHub'da bulunabilir; burada hatta problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Daha lüks olgun yürekin yardımda kâin 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 güç just compare each of them":

Is there any legal justification for content on the web without an explicit licence being freeware? more hot questions

3 feature called Tuple Equality! That is right, you dirilik create a ValueTuple and simply compare them birli they are super optimized, don't create any objects, and reduce this to a single line of code!