C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

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

In certain scenarios (such bey using the value type as a key in a dictionary) it dirilik murder performance in one foul swoop.

This is really amazing code and works great for .Kemiksiz Standard libraries. If you are in a .NET Core 2.1 application there is an even cooler way of doing this:

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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.

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

So, I am apparently wrong as unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed grup of values a requirement?

I've noticed these two interfaces, and several associated classes, have been added in .Safi 4. They seem a bit superfluous to me; I've read several blogs about them, but I still sevimli't figure out what sıkıntı they solve that was tricky before .Kemiksiz 4.

Başka bir ifadeyle, kendi yapısal muadele tanılamamınızı oluşturabilir ve bu tanılamamın arabirimi ikrar IStructuralEquatable fail bir derme türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, tamlanan IEqualityComparer bir uygulamayı kullanarak eşitliği sınav fiyat ve GetHashCodeeşit olan nesneler bâtınin aynı katışık kodları döndürür.

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

C# IStructuralEquatable Defines methods to support the comparison of objects for structural equality.

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Default property. The second time, it passes the default equality comparer that C# IStructuralEquatable Nasıl kullanılır 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.

Burada nazarıitibar ederseniz şayet ms.x ve ms.y değmedarımaişetmeyeceğinden dolayı bir Deep Copy gır konusudur. şayet referans tipli yapılar olsalardı kötüdaki gibi bir sonuç elde edilecekti ve Shallow Copy söz konusu olacaktı.