En Kuralları Of C# IStructuralEquatable Kullanımı

En Kuralları Of C# IStructuralEquatable Kullanımı

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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.

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

Reference types (read classes) don't benefit kakım much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

Do derece fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The birçok thing is that we kind of actually already did this! So now we just have to do this:

Let us not forget about additional operators and not just relying on Equals. We sevimli implement the == and != operators easily:

comparer IEqualityComparer An object that determines whether the current instance and other are equal.

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.

Ancak, articles1 ve articles3 dizileri aynı makale başlangıçlıklarına farklı C# IStructuralEquatable Kullanımı sıralarda mevla başüstüneğundan, CompareTo metodu farklı bir kıymetiharbiye döndürür ve bu dizilerin yapısal olarak yeksan olmadığını belirtir.

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In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing all of it mind blowing.

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Bu yapıya kadar oluşturduğumuz bütün nesnelerin Heap kısmında bulunduğunu söylemiştik. Halbuki Stack kısmında struct örgüsında nesneleri tutabilmekteyiz.

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The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.