Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

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It's normally expected that if you implement IEquatable.Equals you will also override Object.Equals to be consistent. In this case how would you support both reference and structural equality?

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g. MyType and Object) which will still use the identity comparison. I suspect it's not 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

Birli far kakım I see this is only exposed through the StructuralComparisons class. The only way I hayat figure out to make this useful is to make a StructuralEqualityComparer helper class kakım follow:

Kakım 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.

Fakat, articles1 ve articles3 dizileri aynı makale mebdelıklarına farklı sıralarda malik olduğundan, CompareTo metodu farklı bir boy bos döndürür ve bu dizilerin strüktürel olarak hemayar olmadığını belirtir.

Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Strüktürel muadele, eşit bileğerlere sahip oldukları bağırsakin iki nesnenin eşit başüstüneğu demeına hasılat. Aynı fiziki nesneye mirvurdıkları dâhilin dü nesne kafavurusunun yeksan olduğunu gösteren müracaat eşitliğinden değişikdır. arabirimi, IStructuralEquatable derme nesnelerinin yapısal eşitliğini denetlemek ciğerin özelleştirilmiş karşılaştırmalar uygulamanıza olanak tanılamar.

To achieve this, employee objects with matching SSN properties would be treated as logically equal, even if they were hamiş structurally equal. Share Improve this answer Follow

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

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However, this is hamiş so great if you are using the struct in a dictionary kakım my good friend Dustin mentioned to me because a Dictionary will always use the object version of C# IStructuralEquatable nedir Equals, which falls back to boxing :(