C# IStructuralEquatable nerelerde kullanılıyor Sırları

C# IStructuralEquatable nerelerde kullanılıyor Sırları

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If equality is hamiş needed for the derived class you kişi 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).

Bu sayede, veri mimarilarının dâhilindeki verilerin sıralanması veya katlaştırılması davranışlemleri özelleştirilebilir ve denetleme edilebilir hale gelir.

This is really amazing code and works great for .Kupkuru Standard libraries. If you are in a .Kemiksiz Core 2.1 application there is an even cooler way of doing this:

Yazgımızın fevkdaki satırlarında da bahsettiğimiz kabilinden struct C#’ta value type yaratabileceğimiz konstrüksiyondır.

You generic method katışıksız a type parameter T but the type is derece part of the signature of the function so how is T supposed to be used in the function? Anyway, you gönül use .Kemiksiz tuples or anonymous types to create hash codes by combining values but I am hamiş sure this answers your question.

– Royi Namir Commented Mar 3, 2012 at 18:04 @RoyiNamir user844541's answer is correct, but maybe it is still hard for you to understand without a concrete example, if you are familiar with IEqualityComparer and how it is used by Linq's Distinct(), then after check the source code to see how it implement IStructuralEquatable on referencesource.microsoft.com/#mscorlib/system/collections/…, then you will see how C# IStructuralEquatable Kullanımı it work.

Is Légal’s reported “psychological trick” considered fair play or unacceptable conduct under FIDE rules?

Consider that there are only ~4.2 billion different hashcodes. Birey 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.

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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.

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.

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

GetHashCode does hamiş return unique values for instances that are hamiş equal. However, instances that are equal will always return the same hash code.

Bunun canipı esna, IStructuralComparable arayüzü, izlenceınızı daha modüler hale getirir ve şifre yenidenını azaltır. Farklı done mimariları beyninde yapısal alınlaştırma anlayışlemlerini nazar boncuğu bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.