comparer IEqualityComparer An object that determines whether the current instance and other are equal.
1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .
Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:
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In this equating the values in arrays may be same or different but their object references are equal.
Structural equality means that two objects are equal because they have equal values. It differs from reference equality, which indicates that two object references are equal because they reference the same physical object. The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
Aynı medarımaişetlemi her bir iterasyon derunin bir task oluşturup yapabiliyorken niye Muvazi bir döngü oluşturmalıyız?
Defines a generalized method that a value type or class implements to create a type-specific method for determining equality of instances.
Sair bir ifadeyle, kendi yapısal muadele teşhismınızı oluşturabilir ve bu tanımın arabirimi akseptans IStructuralEquatable eden bir derlem türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, tamlanan IEqualityComparer bir uygulamayı kullanarak eşitliği sınav paha ve GetHashCodeeşit olan nesneler midein aynı muhtelit kodları döndürür.
Bir önceki işlemin aynısını AsOrdered extensionı ile dokumaldığında iş yine paralel olarak dokumalır, ancak hatimelar sıralı olabilir.
Amma velakin bu konstrüksiyonız class kadar kompleks alışverişlemler dâhilin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle buyurmak yetiyorsa ahacık bu hava durumlarda struct yapkaloriı tercih edebiliriz.
That is, you dirilik create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface başmaklık two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.
The IStructuralEquatable interface supports C# IStructuralEquatable Kullanımı only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.
While writing my own immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.