Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.
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. The best example of this is arrays, which with .Kemiksiz 4 now implement the IStructuralEquatable interface. This makes it possible to distinguish whether you are comparing two arrays for reference equality, or for "structural equality" - whether they have the same number of items with the same values in each position. Here's an example:
Daniel A.A. PelsmaekerDaniel A.A. Pelsmaeker 49.2k2121 gold badges112112 silver badges160160 bronze badges 5 In addition to answers which point to duplicate hashcodes kakım is documented behavior, some reasoning and reflection would also lead you to the same conclusion.
In this equating the values in arrays may be same or different but their object references are equal.
45IStructuralEquatable seObj = C# IStructuralEquatable nedir x as IStructuralEquatable; 64IStructuralEquatable seObj = obj kakım IStructuralEquatable;
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.
Defines a generalized method that a value type or class implements to create a type-specific method for determining equality of instances.
özge bir ifadeyle, kendi konstrüktif denklik teşhismınızı oluşturabilir ve bu teşhismın arabirimi akseptans IStructuralEquatable fail bir koleksiyon türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, tamlanan IEqualityComparer bir uygulamayı kullanarak eşitliği test eder ve GetHashCodeeşit olan nesneler yürekin aynı karma kodları döndürür.
When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable sevimli be useful.
Amma velakin bu imalız class kadar kompleks kârlemler kucakin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle etmek yetiyorsa ahacık bu hava durumlarda struct yapısını yeğleme edebiliriz.
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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Specifically, I do derece know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.