Hakkında C# IStructuralEquatable Temel Özellikleri

Hakkında C# IStructuralEquatable Temel Özellikleri

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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 gönül use the following pattern. It prevents derived (including sibling) classes from being equal.

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. Kakım the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

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 as IStructuralEquatable; 64IStructuralEquatable seObj = obj kakım IStructuralEquatable;

The IEquatable implementation will require one C# IStructuralEquatable Kullanımı less cast for these classes and as a result will be slightly faster than the standard object.Equals method that would be used otherwise. Kakım an example see the different implementation of the two methods:

şu demek oluyor ki anlayacağınız “int” kadar, “bool” kabilinden şayan tipli bir mütehavvil oluşturmak istiyorsanız struct yapısını tercih edebilirsiniz.

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I had the same question. When I ran LBushkin's example I was surprised to see that I got a different answer! Even though that answer başmaklık 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.

Kupkuru 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.

IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.

Fantasy TV series with a male protagonist who uses a bow and arrows and katışıksız a hawk/falcon/eagle type bird companion

However, this is hamiş 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 :(