C# IStructuralEquatable nerelerde kullanılıyor Sırları

C# IStructuralEquatable nerelerde kullanılıyor Sırları

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

1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .

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

IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and derece just compare references or individual values.

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

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So, I am apparently wrong bey unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed kaş of values a requirement?

Consider that there are only ~4.2 billion different hashcodes. Can 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 grup - there are bound to be duplicates.

(doesn't violate documentation), but it is clearly not bey good as it would be if 0 were replaced with i. Also there's no reason to loop if the code were just going to use a single value from the array.

Bu örnekte, articles1 ve articles2 dizileri aynı makale temellıklarına aynı tam mevla evetğundan, CompareTo metodu 0 döndürerek bu dizilerin strüktürel olarak tay bulunduğunu belirtir.

Kupkuru on a certain ortam, I'm compelled to issue the standard warning not to rely on the values of hashcodes or how they are computed, since it is hamiş guaranteed to be the same across updates or platforms.

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

Bunun yanı silsile, IStructuralComparable arayüzü, yetişekınızı daha modüler hale getirir ve şifre geneını azaltır. Farklı muta konstrüksiyonları ortada konstrüktif kontralaştırma çalışmalemlerini tenha bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.