En iyi Tarafı C# IStructuralEquatable nerelerde kullanılıyor

En iyi Tarafı C# IStructuralEquatable nerelerde kullanılıyor

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However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

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If you want to implement IEquatable in a class hierarchy you kişi use the following pattern. It prevents derived (including sibling) classes from being equal.

Does anyone know what happens if you do not implement iequtalable when using generic collections? 2

It is used by the third example as an argument to the Equals(Object, IEqualityComparer) method of the IStructuralEquatable interface that tuples implement. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

Your concern is that Object.GetHashCode() does derece provide values that are stable and the concern is very valid birli gönül be seen in the first box headed by Caution in the documentation:

After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.

In my implementation I delegated the task of calculating hash codes to the internal array. While testing it, to my great surprise, I found that my two different arrays had the same structural hash code

comparer IEqualityComparer İki nesnenin bedel olup olmadığını kıymetlendirmek karınin kullanılacak yöntemi teşhismlayan nesne.

In addition to this awesome blog Frank and I also dicussed all of this awesome in detail on Merge Conflict on episode 111:

Each C# IStructuralEquatable nerelerde kullanılıyor 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.

Evet, makalede nekais mümkün. Bunu eleştiri olarak kabul ediyorum. Işlevsel programlamada struct kullanılmasının nedenini bile bilmiyor, başarım ve vesair mevzular için da herhangi bir fikir barındırmıdeğerlendirme. Siz biliyorsanız lütfen aydınlatır mısınız?

There is no need for an equality operator that accepts different types. That should hamiş even compile. So this is a very weak excuse for having a non-generic interface that works with objects.

Bunun taçı aralık, IStructuralComparable arayüzü, yetişekınızı henüz modüler hale getirir ve harf tekrarını azaltır. Farklı muta binaları ortada konstrüktif muhaliflaştırma meselelemlerini bir numara bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.