C# StructuralComparisons Kullanımı Günlükler

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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?

Kakım 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.

IEqualityComparer A predefined object that is used to compare two collection objects for structural equality.

My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaves the comparison of the elements to a comparer passed in by the user. (link) (Got from the comments section of the question)

Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are derece mutually exclusive.

CompareTo(Object, IComparer), its Compare method is called for each member of an array or for each component of a tuple. This implementation of the Compare method behaves bey follows when it compares each item of a collection object with the corresponding item of another collection object:

Örneğin, bir uygulamada iki farklı data setinin pursaklar haber müsavi olup olmadığını muayene kılmak istediğimizde yahut makul bir sıralamaya gereğince done setlerini huzurlaştırmak istediğimizde StructuralComparisons dershaneı devreye girer. Bu sınıf, StructuralComparer ve StructuralEqualityComparer yetişmek üzere dü temel üstelikabat sunar.

Similarly, pursaklar haber two distinct arrays will always fail an equality test—unless you use a custom equality comparer. Framework 4.0 introduced one for the purpose of comparing elements in arrays which you dirilik access via the StructuralComparisons type.

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Tupler, birden ziyade değeri vahit bir bünyeda saklamak yürekin kullanılan muta dokumalarıdır. StructuralComparisons dershaneı, tuplerin elemanlarını mukabillaştırarak, yapısal olarak hemayar olup olmadıklarını belirlemek dâhilin kullanılabilir.

It considers two items that are null to be equal, and considers a null item pursaklar haber to be less than an item that is derece null.

Bir işlemi ansızın zait yol gerçekleştirmeniz gerektiğinde yahut kodunuzu elan nizamlı tutmanız gerektiğinde metotlar enikonu yararlıdır.

C# StructuralComparisons Gets a predefined object that compares two objects for structural equality.

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