C# IStructuralEquatable Kullanımı - Genel Bakış

C# IStructuralEquatable Kullanımı - Genel Bakış

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Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.

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Reference types (read classes) don't benefit as much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

IStructuralComparable arayüzü, çoğunlukla Array ve Tuple kabilinden bilgi kuruluşları aracılığıyla uygulanır. Bu muta mimariları, elemanlarının sıralamasını ve yapısını dikkate alarak mukabillaştırma yapar.

You generic method başmaklık 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 emanet use .NET tuples or anonymous types to create hash codes by combining values but I am derece sure this answers your question.

The following example defines a NanComparer class that implements the IStructuralEquatable interface. It compares two Double or two Single values by using the equality operator. C# IStructuralEquatable Temel Özellikleri It passes values of any other type to the default equality comparer.

What does IEquatable buy you, exactly? The only reason I gönül see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

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Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may hamiş give you the correct results in this super simple example:

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.

Programlama dillerinde en mühim OOP(Object Oriented Programing) strüktürlarından olan class bünyesına göre henüz mahdut düzeyde işçiliklemler gerçekleştirmemizi sağlayıcı ve belli bir takım kısıtlamaları nispetle barındıran struct yapkaloriı C# diline özel ele alacağız.

Ya, makalede nekais mümkün. Bunu tenkit olarak kabul ediyorum. Işlevsel programlamada struct kullanılmasının nedenini de bilmiyor, performans ve özge mevzular hakkında da rastgele bir rey barındırmıdeğerlendirme. Siz biliyorsanız lütfen aydınlatır mısınız?

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The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.