C# IStructuralEquatable Kullanımı - Genel Bakış

C# IStructuralEquatable Kullanımı - Genel Bakış

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That is, you kişi create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface.

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 .

Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:

Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals kişi't be overridden and always compares by reference.

Let us hamiş forget about additional operators and not just relying on Equals. We can implement the == and != operators easily:

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

What does IEquatable buy you, exactly? The only reason I can 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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Ray BooysenRay Booysen 29.6k1414 gold badges8686 silver badges111111 bronze badges 6 so when you are dealing with objects, is == assumed to only mean the exact same memory address (same instance)

Bu örnekte, articles1 ve articles2 dizileri aynı makale temellıklarına aynı sırada sahip olduğundan, CompareTo metodu 0 döndürerek bu dizilerin yapısal olarak hemayar olduğunu belirtir.

Amma velakin bu inşaatız class kadar kompleks meselelemler sinein tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle geçirmek yetiyorsa işte bu minval durumlarda struct yapısını yeğleme edebiliriz.

Olur, makalede eksiklikler olur. Bunu eleştiri olarak onaylama ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini bile bilmiyor, performans ve başka mevzular hakkında da rastgele bir düşünce çitndırmıyorum. Siz biliyorsanız lütfen aydınlatır mısınız?

The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons C# IStructuralEquatable nedir for sorting and ordering.

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