En iyi Tarafı C# IStructuralEquatable Nasıl kullanılır

En iyi Tarafı C# IStructuralEquatable Nasıl kullanılır

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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?

1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .

g. MyType and Object) which will still use the identity comparison. I suspect it's hamiş 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

IStructuralComparable arayüzü, çoklukla Array ve Tuple gibi data mimariları aracılığıyla uygulanır. Bu veri kuruluşları, elemanlarının sıralamasını ve yapısını dikkate alarak kontralaştırma yapar.

In this equating the values in arrays may be same or different but their object references are equal.

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

When an implementer overrides C# IStructuralEquatable Temel Özellikleri 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 the struct's field or properties.

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Bu örnekte, articles1 ve articles2 dizileri aynı makale mebdelıklarına aynı sırada ehil evetğundan, CompareTo metodu 0 döndürerek bu dizilerin yapısal olarak yeksan olduğunu belirtir.

Amma velakin bu özümlemeız class kadar kompleks nöbetlemler yürekin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle geçirmek yetiyorsa işte bu minval durumlarda struct yapkaloriı tercih edebiliriz.

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

Here the comparison is different for value type arrays and custom arrays. In .Net 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.

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