C# IStructuralEquatable Temel Özellikleri - Genel Bakış

C# IStructuralEquatable Temel Özellikleri - Genel Bakış

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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 bey 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.

LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why hayat't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?

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The following C# IStructuralEquatable Kullanımı example defines a NanComparer class that implements the IStructuralEquatable interface. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.

Ancak, articles1 ve articles3 dizileri aynı makale çıbanlıklarına farklı sıralarda mevla başüstüneğundan, CompareTo metodu farklı bir mesabe döndürür ve bu dizilerin yapısal olarak yeksan olmadığını belirtir.

comparer IEqualityComparer İki nesnenin yeksan olup olmadığını görmek dâhilin kullanılacak yöntemi teşhismlayan nesne.

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C# IStructuralEquatable Defines methods to support the comparison of objects for structural equality.

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

The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.

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.