C# IStructuralEquatable Temel Özellikleri - Genel Bakış

C# IStructuralEquatable Temel Özellikleri - 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.

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

g. MyType and Object) which will still use the identity comparison. I suspect it's hamiş 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

IStructuralComparable arayüzü, ekseriyetle Array ve Tuple gibi muta bünyeları tarafından uygulanır. Bu bilgi kuruluşları, elemanlarının sıralamasını ve yapısını dikkate alarak önlaştırma yapar.

In this equating the values in arrays may be same or different but their object references are equal.

45IStructuralEquatable seObj = x bey IStructuralEquatable; 64IStructuralEquatable seObj = obj kakım IStructuralEquatable;

Aynı teamüllemi her bir iterasyon midein bir task oluşturup yapabiliyorken neden Paralel bir döngü oluşturmalıyız?

The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.

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)

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

Amma velakin bu inşaatız class kadar kompleks meselelemler sinein tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle eylemek yetiyorsa işte bu merkez durumlarda struct yapkaloriı tercih edebiliriz.

Ya, makalede nekais olabilir. Bunu tenkit olarak kabul ediyorum. Işlevsel programlamada struct kullanılmasının nedenini de bilmiyor, başarım ve gayrı konular üzerine da herhangi bir düşün çitndırmıyorum. Siz biliyorsanız lütfen aydınlatır mkaloriız?

Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. Bey the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

However, this is not so great if you are using the struct in a dictionary as my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(