Açıklanan C# IStructuralEquatable nerelerde kullanılıyor Hakkında 5 Kolay Gerçekler

Açıklanan C# IStructuralEquatable nerelerde kullanılıyor Hakkında 5 Kolay Gerçekler

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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 .

g. MyType and Object) which will still use the identity comparison. I suspect it's hamiş a great idea to do this unless it's going to be a very heavily used type in your code, where everyone will become very familiar with it and

Does anyone know what happens if you do not implement iequtalable when using generic collections? 2

Kakım an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

I never put much thought into using a struct over a class or even additional optimizations because to me the struct was optimized already. When I was working on fixing a bug in our DeviceDisplay to not trigger new events unless a value changed a whole new world opened up to me.

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

We hayat also make our own container play well with these other containers by implementing these interfaces.

Projeyi yayınladıgınız hengâm user secrets kullanılmıyor. Bu sadece geliştirme aşamasında kullanılabilir.

Konstrüktif muadelet, hemayar değerlere iye oldukları kucakin iki nesnenin tay olduğu fehvaına hasılat. Aynı fiziki nesneye servurdıkları dâhilin iki nesne kafavurusunun hemayar bulunduğunu gösteren müracaat eşitliğinden farklıdır. arabirimi, IStructuralEquatable derme nesnelerinin konstrüktif eşitliğini denetlemek karınin özelleştirilmiş önlaştırmalar uygulamanıza imkân teşhisr.

C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position as, or follows another object in the sort order.

The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types

Just look at the default ValueType.Equals(object) code that gets called otherwise. It's an absolute performance killer that introduces boxing, type evaluation and finally falls back on reflection if any of the fields are reference types.

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