Açıklanan C# StructuralComparisons Kullanımı Hakkında 5 Kolay Gerçekler

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As it was implemented, you compare collections using IStructuralComparable, which requires you to pass in an IComparer to use in comparing individual elements from the two structures. Since IComparer and IStructuralComparable are two different interfaces, you have problems if the elements of the IStructuralComparable are themselves collections, which now get compared with IComparer.

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. The best example of this is arrays, which with .Kupkuru 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 C# StructuralComparisons Temel Özellikleri they have the same number of items with the same values in each position. Here's an example:

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This helps in separating the iterator from the collection object. The internal representation of the object is encapsulated.

IComparer A predefined object that is used to perform a structural comparison of two collection objects.

looks like "near the composite pattern but really hamiş birli good". This must have C# StructuralComparisons Nedir been done for historical reasons, since lots the IComparer interface başmaklık been implemented many times in and out of the .

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Equals actually being reference equality. But I should have looked closer. Sometimes it would be birçok with member hiding. :P

I've noticed these two interfaces, and several associated classes, have been added in .NET 4. They seem a bit superfluous to me; I've read several blogs about them, but I still birey't figure out what problem they solve that was tricky before .Kemiksiz 4.

Royi NamirRoyi Namir 147k143143 gold badges483483 silver badges815815 bronze badges 1 IStructuralEquatable gives feature to check equality kakım well birli comparision of two arrays.