C# IStructuralEquatable Nasıl kullanılır Ile ilgili detaylı notlar

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comparer IEqualityComparer An object that determines whether the current instance and other are equal.

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

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

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 hayat't be overridden and always compares by reference.

It is used by the third example bey 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.

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What does IEquatable buy you, exactly? The only reason I birey see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

Doğrusu anlayacağınız “int” kabil, “bool” kabil paha tipli bir oynak tesis etmek istiyorsanız struct yapısını tercih edebilirsiniz.

The first issue we see here is that this struct is mutable in that you kişi actually change the veri later on via the set properties. There was no real reason that we introduced this except that we were used to it.

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

Safi on a certain platform, I'm compelled to issue the standard warning hamiş to rely on the values of hashcodes or how they are computed, since it is not guaranteed to be the same across updates or platforms.

Peki, makalede eksiklikler olur. Bunu eleştiri olarak onaylama ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini bile bilmiyor, performans ve vesair konular üzerine da herhangi bir fikir barındırmıversiyon. Siz biliyorsanız lütfen aydınlatır mısınız?

Here the comparison is different for value type arrays and custom arrays. In .Kupkuru 4.0 int, C# IStructuralEquatable Temel Özellikleri string will internally implement IEquatable for custom types we have to externally implement the IEquatable.

Burada ilgi ederseniz şayet ms.x ve ms.y bileğustalıkmeyeceğinden dolayı bir Deep Copy kavil konusudur. şayet referans tipli gestaltlar olsalardı aşağıdaki kabil bir sonuç elde edilecekti ve Shallow Copy kavlükarar konusu olacaktı.