C# IStructuralEquatable nerelerde kullanılıyor Herkes İçin Eğlenceli Olabilir

C# IStructuralEquatable nerelerde kullanılıyor Herkes İçin Eğlenceli Olabilir

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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.

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 yaşama't be overridden and always compares by reference.

Birli an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

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. It passes values of any other type to the default equality comparer.

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.

This is very disappointing behaviour from Microsoft; I'm now wondering if I should review the list of cases I've filed and see if other ones I've submitted have been removed...

comparer IEqualityComparer İki nesnenin hemayar olup olmadığını değerlendirmek muhtevain kullanılacak yöntemi teşhismlayan nesne.

In Xamarin.Essentials we use the C# struct all over the place to encapsulate "small groups of related variables" for our event handlers. They are groups of veri that don't need to be created by the developers consuming the data and are only really used for reading the veri.

Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing C# IStructuralEquatable nedir 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.

Peki, makalede eksiklikler olur. Bunu eleştiri olarak onaylama ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini de bilmiyor, başarım ve özge konular karşı da herhangi bir rey barındırmıtefsir. Siz biliyorsanız lütfen aydınlatır mkaloriız?

Here the comparison is different for value type arrays and custom arrays. In .Kemiksiz 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.

Burada uyanıklık ederseniz eğer ms.x ve ms.y bileğsorunmeyeceğinden dolayı bir Deep Copy alay konusudur. Eğer referans tipli örgülar olsalardı bayağıdaki kadar bir sonuç elde edilecekti ve Shallow Copy laf konusu olacaktı.