You Should Know C# IStructuralEquatable Temel Özellikleri Göstergeleri

You Should Know C# IStructuralEquatable Temel Özellikleri Göstergeleri

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comparer IEqualityComparer An object that determines whether the current instance and other are equal.

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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?

IStructuralComparable arayüzü, alelumum Array ve Tuple kabilinden done bünyeları tarafından uygulanır. Bu bilgi gestaltları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak önlaştırma yapar.

Bey an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

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

IStructuralEquatable is quite new and unknown, but I read somewhere that it gönül be used to compare the contents of collections and arrays. Am I wrong, or is my .Net wrong?

Consider that there are only ~4.2 billion different hashcodes. Dirilik you create more than this many different objects of the type on which GetHashCode is called? In this case it is easy to see the answer is "yes". So GetHashCode is a sort of compressing projection onto a smaller set - there are bound to be duplicates.

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.

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

IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this C# IStructuralEquatable Temel Özellikleri purpose.

You observations does hamiş conflict with the documentation and there is no bug in the implementation.

Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are not mutually exclusive.