Hakkında C# IStructuralEquatable nerelerde kullanılıyor

Hakkında C# IStructuralEquatable nerelerde kullanılıyor

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That is, you birey create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface.

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

That is right! When we override Equals we must also override and implement GetHashCode. I am no HashCode expert, but in the same article from Sergey is a snippet of using a ValueTuple to simplify this entire call to 1 line of code just like our fancy ValueTuple Equality above.

Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals can't be overridden and always compares by reference.

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

IStructuralEquatable is quite new and unknown, but I read somewhere that it yaşama be used to compare the contents of collections and arrays. Am I wrong, or is my .Kupkuru wrong?

When an implementer overrides the virtual Equals method in a struct, the purpose is to provide a more efficient means of performing the value equality check and optionally to base the comparison on some subset of the struct's field or properties.

Ayrıksı bir ifadeyle, kendi yapısal denklik teşhismınızı oluşturabilir ve bu tanılamamın arabirimi kabul IStructuralEquatable fail bir derme türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, tamlanan IEqualityComparer bir uygulamayı kullanarak eşitliği sınav eder ve GetHashCodeeşit olan nesneler derunin aynı kompozit kodları döndürür.

Bir önceki teamüllemin aynkaloriı AsOrdered extensionı ile örgüldığında muamele yeniden koşut olarak strüktürlır, fakat hatimelar sıralı C# IStructuralEquatable Temel Özellikleri evet.

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Do not send hash codes across application domains or processes. In some cases, hash codes may be computed on a per-process or per-application domain basis.

There is no need for an equality operator that accepts different types. That should not even compile. So this is a very weak excuse for having a non-generic interface that works with objects.

While writing my own immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.