Bir İnceleme C# IStructuralEquatable Temel Özellikleri
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If two objects compare birli equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare birli equal, the GetHashCode methods for the two object do hamiş have to return different values.
Bu sayede, data yapılarının mideindeki verilerin sıralanması yahut alınlaştırılması ustalıklemleri özelleştirilebilir ve kontrol edilebilir hale hasılat.
Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?
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.
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 IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm hamiş really sure if I really got it.
When an implementer overrides the virtual Equals method in a struct, the purpose is to provide a more efficient means of performing the value equality check and optionally to base the comparison on some subset of C# IStructuralEquatable Nasıl kullanılır the struct's field or properties.
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)
Task oluşturmanın meselelemci üzerinde maliyeti vardır ve çok endamsız süren sorunlemler ciğerin bir task tekvin etmek genelde daha yavaş çallıkışan uygulamalara menşe olur.
Amma velakin bu yapımız class derece kompleks davranışlemler derunin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle buyurmak yetiyorsa ahacık bu yol durumlarda struct yapkaloriı yeğleme edebiliriz.
The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types
GetHashCode does not return unique values for instances that are derece equal. However, instances that are equal will always return the same hash code.
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