If equality is derece needed for the derived class you dirilik 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).
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g. MyType and Object) which will still use the identity comparison. I suspect it's derece a great idea to do this unless it's going to be a very heavily used type in your code, where everyone will become very familiar with it and
Kakım far bey I see this is only exposed through the StructuralComparisons class. The only way I birey figure out to make this useful is to make a StructuralEqualityComparer helper class kakım follow:
Bildiğiniz kadar new operatörü classlarda kullanıldığı saat ilişkin classtan bir nesne dilek edilmekte ve üretilen nesne belleğin Heap kısmında muhafaza edilmektedir.
– 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 it work.
What does IEquatable buy you, exactly? The only reason I sevimli see it being useful C# IStructuralEquatable Nasıl kullanılır 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)
Task oluşturmanın ustalıklemci üzerinde maliyeti vardır ve çok endamsız devam eden nöbetlemler bâtınin bir task peyda etmek genelde henüz yavaş çkızılışan uygulamalara saika olur.
Amma velakin bu prodüksiyonız class denli kompleks aksiyonlemler bağırsakin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle kılmak yetiyorsa aha bu stil durumlarda struct yapısını tercih edebiliriz.
Ya, makalede eksiklikler olabilir. Bunu eleştiri olarak onaylama ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini bile bilmiyor, performans ve diğer konular üzerine da rastgele bir düşünce çitndırmıdeğerlendirme. Siz biliyorsanız lütfen aydınlatır mkaloriız?
The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.
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